EP1999380A1 - Compressor unit and assembly method - Google Patents

Compressor unit and assembly method

Info

Publication number
EP1999380A1
EP1999380A1 EP07727244A EP07727244A EP1999380A1 EP 1999380 A1 EP1999380 A1 EP 1999380A1 EP 07727244 A EP07727244 A EP 07727244A EP 07727244 A EP07727244 A EP 07727244A EP 1999380 A1 EP1999380 A1 EP 1999380A1
Authority
EP
European Patent Office
Prior art keywords
compressor unit
drainage
housing
compressor
fluid
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.)
Granted
Application number
EP07727244A
Other languages
German (de)
French (fr)
Other versions
EP1999380B1 (en
Inventor
Gerrit Lenderink
Theo Nijhuis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to EP07727244A priority Critical patent/EP1999380B1/en
Publication of EP1999380A1 publication Critical patent/EP1999380A1/en
Application granted granted Critical
Publication of EP1999380B1 publication Critical patent/EP1999380B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/10—Centrifugal pumps for compressing or evacuating
    • F04D17/12—Multi-stage pumps
    • F04D17/122—Multi-stage pumps the individual rotor discs being, one for each stage, on a common shaft and axially spaced, e.g. conventional centrifugal multi- stage compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0686—Units comprising pumps and their driving means the pump being electrically driven specially adapted for submerged use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps

Definitions

  • the invention relates to a compressor unit, in particular for underwater operation, comprising a compressor and an electric motor, which compressor unit has a housing with an inlet and an outlet for a pumped medium, with an axis of rotation about which a rotor of the compressor unit is rotatable.
  • an assembly method for a compressor unit according to the invention is the subject of the invention.
  • the compressed medium to be compressed in particular natural gas to be conveyed, not only has a frequently varying aggressive chemical composition, but is also a carrier of various condensates, which complicate the compression, in particular lead to increased wear of the compressor. For this reason, a condensate separation takes place before the compression. Even with the most expensive separation technology, it is not possible to prevent a subsequent separation of condensate in the compressor unit, which can affect at least the service life of a compressor unit. In the case of a compressor unit operated under water, there is also the problem that a connection which regularly takes place at the operating location of the conveying medium and discharging lines and the ambient medium, for example aggressive seawater, can already enter the compressor unit on the transport path and damage there can lead .
  • the invention has set itself the task of eliminating the damage potential of condensates and other liquids in a particular intended for underwater operation compressor unit.
  • a key advantage of the combination of the vertical installation with a drainage at the lower axial end of the housing is that on the one hand due to the elongated extent along the axis of rotation particularly favorable conditions of drainage arise because higher hydrostatic pressures are due to the higher water column, which ensure a better drainage of the condensates from the housing. As a result, also flow through the drainage located at the lower axial end of the housing condensate driven by the higher hydrostatic pressure due to the vertical orientation better.
  • the surfaces in the interior of the compressor unit are designed in such a way that in the case of vertical alignment for operation inside the machine
  • housing fluids flowing due to gravity flowing to achieve the drainage For this purpose, the surfaces facing away from the drainage should have a slope, which has a flow for drainage result.
  • suitable undercuts with respect to the drainage are inventively not provided inside the housing.
  • a pump is connected to the drainage designed as an opening, which dissipates the condensate.
  • the housing of the compressor unit is mounted in a frame by means provided on the housing support members, which storage is designed such that the housing is rotatable about a horizontal axis in the region of the rotor's center of gravity, and so the drainage from a low point at a high point to frame rotation.
  • This development of the invention is particularly useful when an assembly process for a submerged to be operated compressor unit provides that the compressor unit is filled before lowering to the operating site under water with an incompressible fluid, then transported to the submerged location and operating the Terminals are connected to the inlet and the outlet and finally the compressor unit is drained of the fluid by the drainage.
  • the inlet and the outlet are closed over water, before the incompressible fluid is filled and these closures are removed before the ports are connected to the inlet and the outlet.
  • this is rotated about a horizontal axis, as described above, so that drainage is located at the upper axial end.
  • a complete filling of the housing with the incompressible fluid can take place, in particular if the interior of the housing is designed such that in operation liquids flowing entirely by gravity can reach the drainage and the compressor unit is filled with the lower one axial end is located above.
  • the corresponding inclination of the surfaces ensures that when filled with the incompressible fluid can not hold compressible gas bubbles in the housing.
  • distilled water or demineralized water may serve as the incompressible fluid, so that the interior of the compressor unit is not exposed to the damaging influence of the ambient medium, for example seawater, and at the same time, the inlet and outlet closures are unaffected during the transport of the compressor unit to the underwater operating location special pressure load must withstand.
  • Closing the inlet and outlet of the filled housing is also useful so that no fish swim into the compressor unit and crabs do not crawl into it.
  • Figure 1 is a schematic representation of a
  • Figure 2, 3 are each a schematic representation of process steps of the mounting method according to the invention.
  • Figure 1 shows a section along a compressor unit 1 according to the invention, which has as essential components a motor 2 and a compressor 3 in a gas-tight housing 4.
  • the housing 4 accommodates the engine 2 and the compressor 3.
  • the housing 4 is provided with an inlet 6 and an outlet 7, through the inlet 6 by means of an intake 8 to be compressed Fluid is sucked and flows through the outlet 7, the compressed fluid.
  • the compressor unit 1 is arranged vertically in operation, wherein a motor rotor 15 of the motor 2 are combined via a compressor rotor 9 of the compressor 3 forming a common shaft 19 which rotates about a common vertical axis of rotation 60.
  • the motor rotor 15 is mounted in a first radial bearing 21 at the upper end of the motor rotor 15.
  • the compressor rotor 9 is mounted in a second radial bearing 22 in the lower position.
  • a thrust bearing 25 is provided at the upper end of the common shaft 19 so at the upper end of the motor rotor 15.
  • the radial bearings 21, 22 and the thrust bearing 25 operate electromagnetically and are each carried out encapsulated.
  • the radial bearings 21, 22 extend in this case in the circumferential direction about the respective bearing point of the shaft 19 and are in this case formed 360 ° circumferentially and undivided.
  • the compressor 3 designed as a centrifugal compressor has three compressor stages 11 which are in each case connected by means of an overflow 33.
  • the to the Compressor stages 11 resulting pressure differences provide thrust to the compressor rotor 9, which transmits via the clutch 18 on the motor rotor 15 and against the weight of the resulting entire rotor of the compressor rotor 9 and motor rotor 15, is directed so that in nominal operation as far as possible thrust balance he follows.
  • the thrust bearing 25 can be dimensioned comparatively smaller than in a horizontal arrangement.
  • the electromagnetic bearings 21, 22, 25 are cooled by means of a cooling system 31 to operating temperature, wherein the cooling system 31 provides a tap 32 in an overflow of the compressor 3. From the tap 32 is a part of the pumped medium, which is preferably natural gas, passed through a filter 35 and then passed through two separate pipes to the respective outer bearing points (first radial bearing 21 and second radial bearing 22 and thrust bearing 25) by means of piping.
  • This cooling by means of the cold pumped medium saves additional supply lines.
  • the motor rotor 15 is surrounded by a stator 16, which has an encapsulation 39, so that the aggressive conveying medium does not damage windings of the stator 16.
  • the encapsulation 39 is preferably designed so that it can bear the full operating pressure. This is also because a separate stator cooling 40 is provided, which promotes its own cooling medium 41 via a heat exchanger 43 by means of a pump 42.
  • At least the encapsulation 39 is designed such that the portion which extends between the stator 16 and the motor rotor 15 has a thin wall thickness, however, is able to withstand the exhaust pressure when the stator cooling 40 is completely filled by means of the cooling medium 41 , In this way, larger eddy current losses are avoided in this area and the efficiency of the overall arrangement improves.
  • the compressor rotor 9 expediently has a compressor shaft 10 on which the individual compressor stages 11 are mounted. This can preferably be done by means of a thermal shrinkage fit. Likewise, a positive connection, for example by means of polygons possible. Another embodiment provides for a fusion of different compressor stages 11 to each other, from which a one-piece compressor rotor 9 results.
  • Dewatering point SDP at which a drainage 64 is in the form of an opening of the housing 4.
  • a drainage 64 is in the form of an opening of the housing 4.
  • all the liquid that is inside the casing 4 collects due to gravity only.
  • all the surfaces inside the compressor unit are designed such that, when the operating direction is vertical, the inclination 65 of the surfaces reliably prevents the accumulation of liquid except at the dewatering point.
  • a condensate pump 67 is connected, which dissipates the accumulating liquid.
  • a condensate pump 67 is connected, which dissipates the accumulating liquid.
  • supporting elements 69 are provided on the housing, which offer the possibilities for attaching stop means to stop points.
  • a receptacle in a frame 70 is possible, as shown in Figures 2 and 3.
  • the receptacle in the frame 70 is designed such that a rotation of the compressor unit 1 about a horizontal axis is possible. In this way, the drainage 64 can be rotated from the lowest point according to the vertical operating orientation to the uppermost point.
  • the assembly method according to the invention provides that in a first step, the compressor unit 1 in the frame 70 mirror image of the operating position with the drainage 64 upwards in the vertical orientation of Rotary axis 60 is oriented. In this position, filling the compressor unit 1 by means of an incompressible fluid 82, namely by means of distilled or demineralized water takes place under closure of the inlet 6 and the outlet 7. Subsequently, the
  • Compressor unit 1 is rotated back to the operating position and transported under water to the operating site. Finally, with removal of the closures of the inlet 6 and the outlet 7, a respective line 80, 81 connected for a pumped medium and there is a connection of the condensate pump 67 followed by condensate collection 80 to the drainage 64. Before commissioning the compressor unit 1, the fluid filling of the condensate pump 67 pumped from the interior of the compressor unit 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Compressor (AREA)

Abstract

The invention relates to a compressor unit, in particular, for submarine application, comprising an electric motor. The transported medium for compression, in particular, natural gas for transport, not only frequently contains various aggressive chemical compounds but is also carrier of various condensates which hinder compression and in particular lead to increased wear of the compressor. On assembly aggressive sea water can also enter the compressor unit. The invention provides a solution to the above, wherein the rotation axis is arranged vertically during operation and the housing comprises a drain at the lower axial end. The invention further relates to an assembly method for a compressor unit, in which the compressor unit is filed above water with an incompressible fluid, transported to a submarine operating position, connectors are connected to the inlet and the outlet and the fluid removed from the compressor unit through the drain.

Description

Beschreibungdescription
Verdichtereinheit und MontageverfahrenCompressor unit and assembly process
Die Erfindung betrifft eine Verdichtereinheit insbesondere für den Unterwasserbetrieb, umfassend einen Verdichter und einen elektrischen Motor, welche Verdichtereinheit ein Gehäuse aufweist mit einem Einlass und einem Auslass für ein Fördermedium, mit einer Drehachse, um welche ein Rotor der Verdichtereinheit drehbar ist. Daneben ist ein Montageverfahren für eine erfindungsgemäße Verdichtereinheit Gegenstand der Erfindung.The invention relates to a compressor unit, in particular for underwater operation, comprising a compressor and an electric motor, which compressor unit has a housing with an inlet and an outlet for a pumped medium, with an axis of rotation about which a rotor of the compressor unit is rotatable. In addition, an assembly method for a compressor unit according to the invention is the subject of the invention.
Jüngste Entwicklungen im Bereich des Verdichterbaus fokussieren sich auch auf Unterseeanordnung großer Verdichter, welcher der Förderung von Erdgasen dienen sollen. Aufgrund der besonderen Betriebsbedingungen, insbesondere wegen der stark eingeschränkten Zugänglichkeit sowohl zuRecent developments in the field of compressor construction are also focused on subsections of large compressors, which are to serve the promotion of natural gas. Due to the special operating conditions, especially because of the greatly restricted accessibility both to
Wartungszwecken als auch mittels Versorgungsleitungen sieht sich die Fachwelt vor großen Herausforderungen gestellt. Einschlägige Umweltbestimmungen verbieten jeglichen stofflichen Austausch zwischen den zu installierenden Aggregaten und dem umgebenden Seewasser. Hinzukommt, dass das Seewasser ein aggressives Medium ist und in den verschiedenen Meerestiefen extreme Druck- und Temperaturbedingungen anzutreffen sind. Eine weitere Anforderung besteht darin, dass die Aggregate einerseits eine äußerst hohe Standzeit aufweisen sollen und andererseits nahezu wartungsfrei ausgebildet sein müssen. Erschwerend ist zusätzlich eine nicht unerhebliche Verschmutzung des teilweise chemisch aggressiven zu fördernden Mediums.Maintenance as well as by means of supply lines, the professional world faces great challenges. Relevant environmental regulations prohibit any material exchange between the units to be installed and the surrounding seawater. In addition, the seawater is an aggressive medium and extreme pressure and temperature conditions can be found in the different sea depths. Another requirement is that the aggregates on the one hand have an extremely long service life and on the other hand have to be designed virtually maintenance-free. To make matters worse, a significant contamination of the partially chemically aggressive medium to be promoted.
Das zu verdichtende Fördermedium, insbesondere zu förderndes Erdgas, weist nicht nur eine häufig variierende aggressive chemische Zusammensetzung auf, sondern ist auch Träger verschiedener Kondensate, welche die Verdichtung erschweren, insbesondere zu einem erhöhten Verschleiß des Verdichters führen. Aus diesem Grund findet vor der Verdichtung eine Kondensatabscheidung statt. Selbst mit aufwendigster Abscheidetechnologie gelingt es nicht, eine nachfolgende Abscheidung von Kondensat auch in der Verdichtereinheit zu verhindern, was zumindest die Standzeit einer Verdichtereinheit beeinträchtigen kann. Bei einer unter Wasser betriebenen Verdichtereinheit kommt zudem das Problem hinzu, dass ein Anschließen, der das Fördermedium zuleitenden und ableitenden Leitungen regelmäßig erst am Betriebsort stattfindet und auf dem Transportweg dorthin bereits das Umgebungsmedium, beispielsweise aggressives Seewasser, in die Verdichtereinheit eintreten kann und dort zu Schäden führen kann .The compressed medium to be compressed, in particular natural gas to be conveyed, not only has a frequently varying aggressive chemical composition, but is also a carrier of various condensates, which complicate the compression, in particular lead to increased wear of the compressor. For this reason, a condensate separation takes place before the compression. Even with the most expensive separation technology, it is not possible to prevent a subsequent separation of condensate in the compressor unit, which can affect at least the service life of a compressor unit. In the case of a compressor unit operated under water, there is also the problem that a connection which regularly takes place at the operating location of the conveying medium and discharging lines and the ambient medium, for example aggressive seawater, can already enter the compressor unit on the transport path and damage there can lead .
Ausgehend von den Problemen des Standes der Technik hat es sich die Erfindung zur Aufgabe gemacht, dass Schadenspotenzial von Kondensaten und anderen Flüssigkeiten in einer insbesondere für den Unterwasserbetrieb vorgesehenen Verdichtereinheit zu beseitigen.Based on the problems of the prior art, the invention has set itself the task of eliminating the damage potential of condensates and other liquids in a particular intended for underwater operation compressor unit.
Zur Lösung der erfindungsgemäßen Aufgabe wird eine Verdichtereinheit nach Anspruch 1 und eine Methode zur Montage einer Verdichtereinheit nach Anspruch 7 vorgeschlagen. Die jeweils rückbezogenen Unteransprüche beinhalten vorteilhafte Weiterbildungen der Erfindung.To achieve the object of the invention, a compressor unit according to claim 1 and a method for mounting a compressor unit according to claim 7 is proposed. The respective dependent claims contain advantageous developments of the invention.
Ein entscheidender Vorteil der Kombination der vertikalen Aufstellung mit einer Entwässerung am unteren axialen Ende des Gehäuses liegt darin, dass sich einerseits aufgrund der länglichen Erstreckung entlang der Drehachse besonders günstige Bedingungen der Entwässerung deshalb ergeben, weil in Folge der höheren Wassersäule höhere hydrostatische Drücke vorliegen, welche für ein besseres Abfließen der Kondensate aus dem Gehäuse sorgen. Dem zur Folge fließen auch durch die am unteren axialen Ende des Gehäuses befindliche Entwässerung Kondensate getrieben von dem höheren hydrostatischen Druck aufgrund der vertikalen Ausrichtung besser ab. Um ein restloses Abfließen der Flüssigkeiten zu gewährleisten, ist es zweckmäßig, wenn die Oberflächen im Inneren der Verdichtereinheit derart gestaltet sind, dass bei vertikaler Ausrichtung für den Betrieb im Inneren desA key advantage of the combination of the vertical installation with a drainage at the lower axial end of the housing is that on the one hand due to the elongated extent along the axis of rotation particularly favorable conditions of drainage arise because higher hydrostatic pressures are due to the higher water column, which ensure a better drainage of the condensates from the housing. As a result, also flow through the drainage located at the lower axial end of the housing condensate driven by the higher hydrostatic pressure due to the vertical orientation better. In order to ensure a complete drainage of the liquids, it is expedient if the surfaces in the interior of the compressor unit are designed in such a way that in the case of vertical alignment for operation inside the machine
Gehäuses befindliche Flüssigkeiten lediglich aufgrund der Schwerkraft fließend die Entwässerung erreichen. Hierzu sollten die von der Entwässerung abgewandten Oberflächen eine Neigung aufweisen, welche ein Fließen zur Entwässerung zur Folge hat. Zur Sammlung von Flüssigkeit geeignete Hinterschneidungen bezüglich der Entwässerung sind erfindungsgemäß nicht im Gehäuseinneren vorgesehen.Housing fluids flowing due to gravity flowing to achieve the drainage. For this purpose, the surfaces facing away from the drainage should have a slope, which has a flow for drainage result. For collection of fluid suitable undercuts with respect to the drainage are inventively not provided inside the housing.
Zur restlosen Abförderung von den Kondensaten und zur Überwindung etwaiger Druckdifferenzen ist es zweckmäßig, wenn an die als Öffnung ausgebildete Entwässerung eine Pumpe angeschlossen ist, welche das Kondensat abfördert.For complete removal of the condensates and to overcome any pressure differences, it is expedient if a pump is connected to the drainage designed as an opening, which dissipates the condensate.
Für Montagevorgänge ist es darüber hinaus zweckmäßig, wenn das Gehäuse der Verdichtereinheit in einem Rahmen mittels an dem Gehäuse vorgesehener Abstützelemente gelagert ist, wobei diese Lagerung derart ausgebildet ist, dass das Gehäuse um eine horizontale Achse im Bereich des Rotorschwerpunkts drehbar ist, und so die Entwässerung von einem Tiefpunkt an einem Hochpunkt um Rahmen der Drehung wechselt.For assembly operations, it is also expedient if the housing of the compressor unit is mounted in a frame by means provided on the housing support members, which storage is designed such that the housing is rotatable about a horizontal axis in the region of the rotor's center of gravity, and so the drainage from a low point at a high point to frame rotation.
Diese Weiterbildung der Erfindung ist insbesondere dann zweckmäßig, wenn ein Montageverfahren für eine unter Wasser zu betreibende Verdichtereinheit vorsieht, dass die Verdichtereinheit vor dem Absenken an den Betriebsort unter Wasser mit einem inkompressiblen Fluid gefüllt wird, anschließend an den unter Wasser befindlichen Betriebsort transportiert wird und die Anschlüsse an den Einlass und den Auslass angeschlossen werden und abschließend die Verdichtereinheit von dem Fluid durch die Entwässerung entleert wird. Um einen Austausch mit dem Umgebungsmedium unter Wasser zu verhindern, ist es sinnvoll, wenn der Einlass und der Auslass über Wasser verschlossen werden, bevor das inkompressible Fluid eingefüllt wird und diese Verschlüsse wieder entfernt werden, bevor die Anschlüsse an den Einlass und den Auslass angeschlossen werden. Zum Befüllen des Gehäuses der Verdichtereinheit ist es sinnvoll, wenn dieses um eine horizontale Achse, wie zuvor beschrieben, gedreht wird, so dass sich Entwässerung am oberen axialen Ende befindet. Durch die Entwässerung hindurch kann eine vollständige Füllung des Gehäuses mit dem inkompressiblen Fluid erfolgen, insbesondere, wenn das Innere des Gehäuses so gestaltet ist, dass in dem Betrieb Flüssigkeiten vollständig aufgrund der Schwerkraft fließend die Entwässerung erreichen können und die Verdichtereinheit sich beim Befüllen mit dem unteren axialen Ende oben befindet. Die dementsprechende Neigung der Oberflächen sorgt dafür, dass sich bei der Befüllung mit dem inkompressiblen Fluid keine kompressiblen Gasblasen in dem Gehäuse halten können. Als inkompressibles Fluid können beispielsweise destilliertes Wasser oder demineralisiertes Wasser dienen, so dass das Innere der Verdichtereinheit nicht dem schädigenden Einfluss des Umgebungsmediums, beispielsweise des Seewassers ausgesetzt wird und gleichzeitig die Verschlüsse von Einlass und Auslass im Rahmen des Transports der Verdichtereinheit an den Betriebsort unter Wasser keiner besonderen Druckbelastung Stand halten müssen.This development of the invention is particularly useful when an assembly process for a submerged to be operated compressor unit provides that the compressor unit is filled before lowering to the operating site under water with an incompressible fluid, then transported to the submerged location and operating the Terminals are connected to the inlet and the outlet and finally the compressor unit is drained of the fluid by the drainage. In order to avoid an exchange with the surrounding medium under water, it makes sense, if the inlet and the outlet are closed over water, before the incompressible fluid is filled and these closures are removed before the ports are connected to the inlet and the outlet. For filling the housing of the compressor unit, it is useful if this is rotated about a horizontal axis, as described above, so that drainage is located at the upper axial end. Through the drainage, a complete filling of the housing with the incompressible fluid can take place, in particular if the interior of the housing is designed such that in operation liquids flowing entirely by gravity can reach the drainage and the compressor unit is filled with the lower one axial end is located above. The corresponding inclination of the surfaces ensures that when filled with the incompressible fluid can not hold compressible gas bubbles in the housing. For example, distilled water or demineralized water may serve as the incompressible fluid, so that the interior of the compressor unit is not exposed to the damaging influence of the ambient medium, for example seawater, and at the same time, the inlet and outlet closures are unaffected during the transport of the compressor unit to the underwater operating location special pressure load must withstand.
Ein Verschließen des Einlasses und des Auslasses des befüllten Gehäuses ist auch zweckmäßig, damit keine Fische in die Verdichtereinheit schwimmen und keine Krabben hinein kriechen .Closing the inlet and outlet of the filled housing is also useful so that no fish swim into the compressor unit and crabs do not crawl into it.
Im Folgenden ist die Erfindung anhand eines speziellen Ausführungsbeispiels unter Bezugnahme auf Zeichnungen näher beschrieben. Die gezeigten Ausführungsformen sind lediglich zur Verdeutlichung als Beispiel der Erfindung zu verstehen. Es zeigen:In the following the invention with reference to a specific embodiment with reference to drawings is described in detail. The illustrated embodiments are merely illustrative of the invention. Show it:
Figur 1 eine schematische Darstellung einesFigure 1 is a schematic representation of a
Längsschnitts durch eine Verdichtereinheit, Figur 2, 3 jeweils eine schematische Darstellung von Verfahrensschritten der erfindungsgemäßen Montagemethode .Longitudinal section through a compressor unit, Figure 2, 3 are each a schematic representation of process steps of the mounting method according to the invention.
Figur 1 zeigt einen Schnitt längs einer erfindungsgemäßen Verdichtereinheit 1, welche als wesentliche Bauteile einen Motor 2 und einen Verdichter 3 in einem gasdicht ausgebildeten Gehäuse 4 aufweist. Das Gehäuse 4 beherbergt den Motor 2 und den Verdichter 3. Im Bereich des Übergangs von dem Motor 2 zu dem Verdichter 3 ist das Gehäuse 4 mit einem Einlass 6 und einem Auslass 7 versehen, wobei durch den Einlass 6 mittels eines Ansaugstutzens 8 das zu verdichtende Fluid angesaugt wird und durch den Auslass 7 das verdichtete Fluid abströmt.Figure 1 shows a section along a compressor unit 1 according to the invention, which has as essential components a motor 2 and a compressor 3 in a gas-tight housing 4. The housing 4 accommodates the engine 2 and the compressor 3. In the area of the transition from the engine 2 to the compressor 3, the housing 4 is provided with an inlet 6 and an outlet 7, through the inlet 6 by means of an intake 8 to be compressed Fluid is sucked and flows through the outlet 7, the compressed fluid.
Die Verdichtereinheit 1 ist im Betrieb vertikal angeordnet, wobei ein Motorrotor 15 des Motors 2 über einem Verdichterrotor 9 des Verdichters 3 eine gemeinsame Welle 19 bildend vereint sind, die sich um eine gemeinsame vertikale Drehachse 60 dreht.The compressor unit 1 is arranged vertically in operation, wherein a motor rotor 15 of the motor 2 are combined via a compressor rotor 9 of the compressor 3 forming a common shaft 19 which rotates about a common vertical axis of rotation 60.
Der Motorrotor 15 ist in einem ersten Radiallager 21 am oberen Ende des Motorrotors 15 gelagert.The motor rotor 15 is mounted in a first radial bearing 21 at the upper end of the motor rotor 15.
Der Verdichterrotor 9 ist in einem zweiten Radiallager 22 in unterer Position gelagert.The compressor rotor 9 is mounted in a second radial bearing 22 in the lower position.
Am oberen Ende der gemeinsamen Welle 19 also am oberen Ende des Motorrotors 15 ist ein Axiallager 25 vorgesehen. Die Radiallager 21, 22 und das Axiallager 25 arbeiten elektromagnetisch und sind jeweils gekapselt ausgeführt. Die Radiallager 21, 22 erstrecken sich hierbei in Umfangsrichtung um die jeweilige Lagerstelle der Welle 19 und sind hierbei 360° umlaufend und ungeteilt ausgebildet.At the upper end of the common shaft 19 so at the upper end of the motor rotor 15, a thrust bearing 25 is provided. The radial bearings 21, 22 and the thrust bearing 25 operate electromagnetically and are each carried out encapsulated. The radial bearings 21, 22 extend in this case in the circumferential direction about the respective bearing point of the shaft 19 and are in this case formed 360 ° circumferentially and undivided.
Der als Zentrifugalverdichter ausgebildete Verdichter 3 weist drei Verdichterstufen 11 auf, die jeweils mittels einer Überströmung 33 in Verbindung stehen. Die sich an den Verdichterstufen 11 ergebenen Druckdifferenzen sorgen für einen Schub an dem Verdichterrotor 9, der sich über die Kupplung 18 auf dem Motorrotor 15 überträgt und entgegen der Gewichtskraft des sich ergebenden gesamten Rotors aus Verdichterrotor 9 und Motorrotor 15, gerichtet ist, so dass ein im Nennbetrieb weitestgehender Schubausgleich erfolgt. Auf diese Weise kann das Axiallager 25 vergleichsweise kleiner dimensioniert sein als in einer horizontalen Anordnung.The compressor 3 designed as a centrifugal compressor has three compressor stages 11 which are in each case connected by means of an overflow 33. The to the Compressor stages 11 resulting pressure differences provide thrust to the compressor rotor 9, which transmits via the clutch 18 on the motor rotor 15 and against the weight of the resulting entire rotor of the compressor rotor 9 and motor rotor 15, is directed so that in nominal operation as far as possible thrust balance he follows. In this way, the thrust bearing 25 can be dimensioned comparatively smaller than in a horizontal arrangement.
Die elektromagnetischen Lager 21, 22, 25 sind mittels eines Kühlsystems 31 auf Betriebstemperatur gekühlt, wobei das Kühlsystem 31 eine Anzapfung 32 in einer Überströmung des Verdichters 3 vorsieht. Von der Anzapfung 32 wird mittels Rohrleitungen ein Teil des Fördermediums, welches vorzugsweise Erdgas ist, durch einen Filter 35 geleitet und anschließend durch zwei separate Rohrleitungen zu den jeweils äußeren Lagerstellen (erstes Radiallager 21 und zweites Radiallager 22 sowie Axiallager 25) geführt. Diese Kühlung mittels des kalten Fördermediums erspart zusätzliche Versorgungsleitungen .The electromagnetic bearings 21, 22, 25 are cooled by means of a cooling system 31 to operating temperature, wherein the cooling system 31 provides a tap 32 in an overflow of the compressor 3. From the tap 32 is a part of the pumped medium, which is preferably natural gas, passed through a filter 35 and then passed through two separate pipes to the respective outer bearing points (first radial bearing 21 and second radial bearing 22 and thrust bearing 25) by means of piping. This cooling by means of the cold pumped medium saves additional supply lines.
Der Motorrotor 15 ist von einem Stator 16 umgeben, der eine Kapselung 39 aufweist, so dass das aggressive Fördermedium Wicklungen des Stators 16 nicht beschädigt. Die Kapselung 39 ist hierbei bevorzugt so ausgelegt, dass sie den vollen Betriebsdruck zu ertragen vermag. Dies auch deshalb, weil eine separate Statorkühlung 40 vorgesehen ist, die ein eigenes Kühlmedium 41 über einen Wärmetauscher 43 mittels einer Pumpe 42 fördert. Zumindest ist die Kapselung 39 derart ausgeführt, dass der Abschnitt, der sich zwischen dem Stator 16 und dem Motorrotor 15 erstreckt zwar eine dünne Wandstärke aufweist jedoch bei einer vollständigen Füllung der Statorkühlung 40 mittels des Kühlmediums 41 in der Lage ist, dem Auslegedruck Stand zu halten. Auf diese Weise werden größere Wirbelstromverluste in diesem Bereich vermieden und der Wirkungsgrad der Gesamtanordnung verbessert sich. Der Verdichterrotor 9 weist zweckmäßig eine Verdichterwelle 10 auf, auf der die einzelnen Verdichterstufen 11 montiert sind. Dies kann bevorzugt mittels einer thermischen Schrumpfpassung erfolgen. Ebenso ist ein Formschluss, beispielsweise mittels Polygonen möglich. Eine andere Ausführungsform sieht eine Schweißung verschiedener Verdichterstufen 11 an einander vor, aus der ein einstückiger Verdichterrotor 9 resultiert.The motor rotor 15 is surrounded by a stator 16, which has an encapsulation 39, so that the aggressive conveying medium does not damage windings of the stator 16. In this case, the encapsulation 39 is preferably designed so that it can bear the full operating pressure. This is also because a separate stator cooling 40 is provided, which promotes its own cooling medium 41 via a heat exchanger 43 by means of a pump 42. At least the encapsulation 39 is designed such that the portion which extends between the stator 16 and the motor rotor 15 has a thin wall thickness, however, is able to withstand the exhaust pressure when the stator cooling 40 is completely filled by means of the cooling medium 41 , In this way, larger eddy current losses are avoided in this area and the efficiency of the overall arrangement improves. The compressor rotor 9 expediently has a compressor shaft 10 on which the individual compressor stages 11 are mounted. This can preferably be done by means of a thermal shrinkage fit. Likewise, a positive connection, for example by means of polygons possible. Another embodiment provides for a fusion of different compressor stages 11 to each other, from which a one-piece compressor rotor 9 results.
An dem unteren axialen Ende 63 des Gehäuses 4 in der vertikalen Betriebsposition befindet sich einAt the lower axial end 63 of the housing 4 in the vertical operating position is a
Entwässerungspunkt SDP, an welchem sich in Form einer Öffnung des Gehäuses 4 eine Entwässerung 64 befindet. An dem Entwässerungspunkt SDP sammelt sich sämtliche Flüssigkeit, die sich im Inneren des Gehäuses 4 befindet, abfließend aufgrund lediglich der Schwerkraft. Hierzu sind sämtliche Oberflächen im Inneren der Verdichtereinheit derart gestaltet, dass bei vertikaler Betriebsausrichtung die Neigung 65 der Oberflächen ein Ansammeln von Flüssigkeit außer am Entwässerungspunkt sicher verhindert. An dieDewatering point SDP, at which a drainage 64 is in the form of an opening of the housing 4. At the dewatering point SDP, all the liquid that is inside the casing 4 collects due to gravity only. For this purpose, all the surfaces inside the compressor unit are designed such that, when the operating direction is vertical, the inclination 65 of the surfaces reliably prevents the accumulation of liquid except at the dewatering point. To the
Entwässerung 64 ist eine Kondensatpumpe 67 angeschlossen, die die anfallende Flüssigkeit abfördert. Im Axialbereich des Rotorschwerpunktes 68 sind an dem Gehäuse Abstützelemente 69 vorgesehen, welche die Möglichkeiten zum Anbringen von Anschlagmitteln an Anschlagpunkten bieten.Drainage 64, a condensate pump 67 is connected, which dissipates the accumulating liquid. In the axial region of the rotor center of gravity 68 supporting elements 69 are provided on the housing, which offer the possibilities for attaching stop means to stop points.
Mittels der Abstützelemente 69 ist eine Aufnahme in einem Rahmen 70 möglich, wie in Figur 2 und 3 dargestellt. Die Aufnahme in dem Rahmen 70 ist derart gestaltet, dass eine Drehung der Verdichtereinheit 1 um eine horizontale Achse möglich ist. Auf diese Weise kann die Entwässerung 64 von dem untersten Punkt gemäß der vertikalen Betriebsausrichtung an den obersten Punkt gedreht werden.By means of the support elements 69, a receptacle in a frame 70 is possible, as shown in Figures 2 and 3. The receptacle in the frame 70 is designed such that a rotation of the compressor unit 1 about a horizontal axis is possible. In this way, the drainage 64 can be rotated from the lowest point according to the vertical operating orientation to the uppermost point.
Die erfindungsgemäße Montagemethode sieht vor, dass in einem ersten Schritt die Verdichtereinheit 1 in dem Rahmen 70 spiegelbildlich zu der Betriebsposition mit der Entwässerung 64 nach oben in vertikaler Ausrichtung der Drehachse 60 orientiert ist. In dieser Position findet unter Verschluss des Einlasses 6 und des Auslasses 7 eine Befüllung der Verdichtereinheit 1 mittels eines inkompressiblen Fluids 82, nämlich mittels destillierten oder demineralisierten Wassers statt. Anschließend wird dieThe assembly method according to the invention provides that in a first step, the compressor unit 1 in the frame 70 mirror image of the operating position with the drainage 64 upwards in the vertical orientation of Rotary axis 60 is oriented. In this position, filling the compressor unit 1 by means of an incompressible fluid 82, namely by means of distilled or demineralized water takes place under closure of the inlet 6 and the outlet 7. Subsequently, the
Verdichtereinheit 1 zurück in die Betriebsposition gedreht und unter Wasser an den Betriebsort transportiert. Schließlich wird unter Entfernung der Verschlüsse des Einlasses 6 und des Auslasses 7 jeweils eine Leitung 80, 81 für ein Fördermedium angeschlossen und es erfolgt ein Anschluss der Kondensatpumpe 67 mit anschließendem Kondensatsammelbehälter 80 an die Entwässerung 64. Vor Inbetriebnahme der Verdichtereinheit 1 wird die Fluidfüllung der Kondensatpumpe 67 aus dem Inneren der Verdichtereinheit 1 abgepumpt. Compressor unit 1 is rotated back to the operating position and transported under water to the operating site. Finally, with removal of the closures of the inlet 6 and the outlet 7, a respective line 80, 81 connected for a pumped medium and there is a connection of the condensate pump 67 followed by condensate collection 80 to the drainage 64. Before commissioning the compressor unit 1, the fluid filling of the condensate pump 67 pumped from the interior of the compressor unit 1.

Claims

Patentansprüche claims
1. Verdichtereinheit (1), insbesondere für den1. compressor unit (1), in particular for the
Unterwasserbetrieb, umfassend einen Verdichter (3) und einen elektrischen Motor (2), welche Verdichtereinheit (1) ein Gehäuse (4) aufweist mit einem Einlass (6) und einem Auslass (7) für ein Fördermedium, mit einer Drehachse (60), um welche ein Rotor der Verdichtereinheit (1) drehbar ist, dadurch gekennzeichnet, dass die Drehachse (60) während des Betriebs vertikal ausgerichtet ist und das Gehäuse (4) an dem unten befindlichen axialen Ende (63) eine Entwässerung (64) aufweist .Underwater operation, comprising a compressor (3) and an electric motor (2), which compressor unit (1) has a housing (4) with an inlet (6) and an outlet (7) for a pumped medium, with an axis of rotation (60), around which a rotor of the compressor unit (1) is rotatable, characterized in that the axis of rotation (60) is vertically aligned during operation and the housing (4) has a drainage (64) at the lower axial end (63).
2. Verdichtereinheit (1) nach Anspruch 1, dadurch gekennzeichnet, dass2. compressor unit (1) according to claim 1, characterized in that
Oberflächen im Inneren der Verdichtereinheit (1) derart gestaltet sind, dass bei vertikaler Ausrichtung für den Betrieb im Inneren des Gehäuses (4) befindliche Flüssigkeiten aufgrund der Schwerkraft abfließen und die Entwässerung (64) erreichen.Surfaces inside the compressor unit (1) are designed such that when in vertical alignment for operation in the interior of the housing (4) located liquids flow by gravity and reach the drainage (64).
3. Verdichtereinheit (1) nach Anspruch 2, dadurch gekennzeichnet, dass von der Entwässerung (64) fort weisende Oberflächen im Inneren der Verdichtereinheit (1) eine derartige Neigung aufweisen, dass diese benetzende Flüssigkeiten von den Oberflächen bei vertikaler Ausrichtung für den Betrieb in Richtung der Entwässerung (64) abfließen.The compressor unit (1) according to claim 2, characterized in that surfaces facing away from the drainage (64) inside the compressor unit (1) have such an inclination that they wetting liquids from the surfaces in a vertical orientation for operation in the direction Drain the drainage (64).
4. Verdichtereinheit (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass eine Kondensatpumpe (67) an der Entwässerung (64) angeschlossen ist, welche Flüssigkeit abfördert. 4. compressor unit (1) according to any one of the preceding claims, characterized in that a condensate pump (67) to the drainage (64) is connected, which dissipates fluid.
5. Verdichtereinheit (1) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Gehäuse (4) mittels an dem Gehäuse vorgesehenen Abstützelementen in einem Rahmen (70) gelagert ist, wobei diese Lagerung derart ausgebildet ist, dass das Gehäuse (4) um eine horizontale Achse drehbar ist, so dass die Entwässerung (64) von einem Tiefpunkt an einen Hochpunkt wechselt.5. compressor unit (1) according to one of the preceding claims, characterized in that the housing (4) is mounted by means provided on the housing supporting elements in a frame (70), wherein this storage is designed such that the housing (4) to a horizontal axis is rotatable so that the drainage (64) changes from a low point to a high point.
6. Verdichtereinheit (1) nach dem vorhergehenden Anspruch 4, dadurch gekennzeichnet, dass die horizontale Achse, um welche das Gehäuse drehbar ist, im Bereich des Rotorschwerpunkts (68) verläuft.6. compressor unit (1) according to the preceding claim 4, characterized in that the horizontal axis about which the housing is rotatable, in the region of the rotor center of gravity (68).
7. Montageverfahren für eine Verdichtereinheit (1) nach Anspruch 1, 2, 3, 4, 5 oder 6, welche für den Unterwasserbetrieb vorgesehen ist, dadurch gekennzeichnet, dass die Verdichtereinheit (1) über Wasser mit einem inkompressiblen Fluid (82) gefüllt wird, an einen unter Wasser befindlichen Betriebsort transportiert wird, Anschlüsse an den Einlass (6) und den Auslass (7) angeschlossen werden und das Fluid (82) aus der Verdichtereinheit (1) durch die Entwässerung (64) abgefördert wird.7. An assembly method for a compressor unit (1) according to claim 1, 2, 3, 4, 5 or 6, which is provided for underwater operation, characterized in that the compressor unit (1) is filled via water with an incompressible fluid (82) is transported to an underwater operating location, connections to the inlet (6) and the outlet (7) are connected and the fluid (82) from the compressor unit (1) through the drainage (64) is conveyed away.
8. Montageverfahren nach Anspruch 6, dadurch gekennzeichnet, dass das Fluid (82) destilliertes oder demineralisiertes Wasser ist. 8. Assembly method according to claim 6, characterized in that the fluid (82) is distilled or demineralized water.
EP07727244A 2006-03-24 2007-03-22 Compressor unit and assembly method Not-in-force EP1999380B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07727244A EP1999380B1 (en) 2006-03-24 2007-03-22 Compressor unit and assembly method

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP06006065 2006-03-24
EP07727244A EP1999380B1 (en) 2006-03-24 2007-03-22 Compressor unit and assembly method
PCT/EP2007/052770 WO2007110378A1 (en) 2006-03-24 2007-03-22 Compressor unit and assembly method

Publications (2)

Publication Number Publication Date
EP1999380A1 true EP1999380A1 (en) 2008-12-10
EP1999380B1 EP1999380B1 (en) 2011-04-27

Family

ID=38068454

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07727244A Not-in-force EP1999380B1 (en) 2006-03-24 2007-03-22 Compressor unit and assembly method

Country Status (10)

Country Link
US (1) US8714910B2 (en)
EP (1) EP1999380B1 (en)
CN (1) CN101410628B (en)
AT (1) ATE507396T1 (en)
BR (1) BRPI0709151A2 (en)
DE (1) DE502007007058D1 (en)
ES (1) ES2364680T3 (en)
NO (1) NO339915B1 (en)
RU (1) RU2409770C2 (en)
WO (1) WO2007110378A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012204403A1 (en) * 2012-03-20 2013-09-26 Man Diesel & Turbo Se Centrifugal compressor unit
ITCO20120024A1 (en) * 2012-05-09 2013-11-10 Nuovo Pignone Srl PRESSURE EQUALIZER
AU2012389805B2 (en) 2012-09-12 2017-07-13 Fmc Technologies, Inc. Subsea compressor or pump with hermetically sealed electric motor and with magnetic coupling
WO2014042624A1 (en) 2012-09-12 2014-03-20 Cunningham Christopher E Up-thrusting fluid system
US10393115B2 (en) 2012-09-12 2019-08-27 Fmc Technologies, Inc. Subsea multiphase pump or compressor with magnetic coupling and cooling or lubrication by liquid or gas extracted from process fluid
WO2014042628A1 (en) 2012-09-12 2014-03-20 Cunningham Christopher E Coupling an electric machine and fluid-end
EP2971764B1 (en) 2013-03-15 2019-06-12 FMC Technologies, Inc. Submersible well fluid system
DE102013214911A1 (en) 2013-07-30 2015-02-05 Siemens Aktiengesellschaft Underwater compressor for compressing a gas under water and using the underwater compressor
DE102013216627A1 (en) 2013-08-22 2015-02-26 Robert Bosch Gmbh Variable speed fluid cooling filter assembly
DE102015120289A1 (en) * 2015-11-24 2017-05-24 Hella Kgaa Hueck & Co. Arrangement of an electric vacuum pump in a vehicle
US10851803B2 (en) * 2015-11-30 2020-12-01 Mitsubishi Heavy Industries Compressor Corporation Multi-stage centrifugal compressor
ITUA20161464A1 (en) 2016-03-08 2017-09-08 Nuovo Pignone Tecnologie Srl Centrifugal compressor without external drainage system, motor compressor and method of avoiding external drainage in a compressor / Centrifugal compressor without external drainage system, motor compressor and method to avoid external drainage in a compressor
US11015618B2 (en) 2016-11-17 2021-05-25 Ihi Corporation Centrifugal compressor
EP3514396A1 (en) 2018-01-22 2019-07-24 Siemens Aktiengesellschaft Arrangement with a rotor and two bearings
CN110360132A (en) * 2019-08-20 2019-10-22 西安陕鼓动力股份有限公司 Integrated form centrifugal compressor and its core pulling method
CN116677656B (en) * 2023-07-10 2024-01-23 江苏科腾环境科技有限公司 High-safety explosion-proof compressor system

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2704657A (en) * 1955-03-22 taylor
US2435470A (en) * 1944-06-23 1948-02-03 Deming Co Pump
US3104964A (en) 1961-12-28 1963-09-24 Gen Electric Gas pump with liquid removal means
DE2223784B1 (en) 1972-05-16 1973-05-24 Deere & Co Radial fan with diffuser, especially for the cleaning device of combine harvesters
SU538155A1 (en) 1974-12-25 1976-12-05 Курганское Проектно-Конструкторское Бюро Device for assembling rotary machines
SU578492A1 (en) 1976-02-04 1977-10-30 Специальное Конструкторско-Технологическое Бюро Компрессорного И Холодильного Машиностроения Device for assembly of rotary machines
US4023261A (en) 1976-04-29 1977-05-17 Unipas, Inc. Method of making an encapsulated wet motor circulator
DE2807449B1 (en) * 1978-02-22 1979-08-23 Basf Ag Process for cleaning multi-stage turbo compressors for gases
JPS557914A (en) * 1978-06-30 1980-01-21 Hitachi Ltd Single-shaft multi-stage centrifugal compressor
DE3641478A1 (en) 1986-12-04 1988-06-16 Klein Schanzlin & Becker Ag HOUSING CARRIER FOR FLOWING MACHINES
NO172555C (en) * 1989-01-06 1993-08-04 Kvaerner Subsea Contracting As UNDERWATER STATION FOR TREATMENT AND TRANSPORTATION OF A BROWN STREAM
NO172076C (en) * 1991-02-08 1993-06-02 Kvaerner Rosenberg As Kvaerner COMPRESSOR SYSTEM IN AN UNDERWATER STATION FOR TRANSPORTING A BROWN STREAM
NO172075C (en) * 1991-02-08 1993-06-02 Kvaerner Rosenberg As Kvaerner PROCEDURE FOR OPERATING A COMPRESSOR PLANT IN AN UNDERWATER STATION FOR TRANSPORTING A BROWN STREAM AND COMPRESSOR PLANT IN A UNDERWATER STATION FOR TRANSPORTING A BROWN STREAM
IL109967A (en) * 1993-06-15 1997-07-13 Multistack Int Ltd Compressor
WO1995015428A1 (en) * 1993-12-03 1995-06-08 Kvaerner Energy A.S Method for developing an offshore hydrocarbon reservoir and an underwater station for use in exploring an offshore hydrocarbon reservoir
RU2166132C2 (en) * 1995-12-28 2001-04-27 Эбара Корпорейшн Pump unit
US5779434A (en) * 1997-02-06 1998-07-14 Baker Hughes Incorporated Pump mounted thrust bearing
RU2159871C1 (en) 1999-03-10 2000-11-27 Открытое акционерное общество Научно-производственное объединение "Искра" Method for assembling gas pumping aggregate
NL1018212C2 (en) * 2001-06-05 2002-12-10 Siemens Demag Delaval Turbomac Compressor unit comprising a centrifugal compressor and an electric motor.
FR2885966B1 (en) * 2005-05-23 2011-01-14 Danfoss Commercial Compressors SPIRAL REFRIGERATING COMPRESSOR
NO326747B1 (en) * 2006-06-30 2009-02-09 Aker Subsea As Device and method for preventing the entry of seawater into a compressor module during immersion to or collection from the seabed

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007110378A1 *

Also Published As

Publication number Publication date
RU2008142116A (en) 2010-04-27
NO339915B1 (en) 2017-02-13
ATE507396T1 (en) 2011-05-15
CN101410628B (en) 2011-05-25
RU2409770C2 (en) 2011-01-20
EP1999380B1 (en) 2011-04-27
WO2007110378A1 (en) 2007-10-04
DE502007007058D1 (en) 2011-06-09
US8714910B2 (en) 2014-05-06
ES2364680T3 (en) 2011-09-12
NO20084423L (en) 2008-10-21
US20100290896A1 (en) 2010-11-18
BRPI0709151A2 (en) 2011-06-28
CN101410628A (en) 2009-04-15

Similar Documents

Publication Publication Date Title
EP1999380B1 (en) Compressor unit and assembly method
EP1999375B1 (en) Compressor unit
EP1999374A1 (en) Compressor unit
EP1979622B1 (en) Compressor unit
EP2142806B1 (en) Compressor system for underwater use in the offshore area
EP1021653B1 (en) Cooled screw vacuum pump
WO2007110271A1 (en) Compressor unit and use of a cooling medium
EP1021654A1 (en) Screw vacuum pump provided with rotors
DE19628781A1 (en) Pump unit with a drive cooling system using the liquid to be pumped
WO2009121612A2 (en) Tubular turbine generator unit
EP2558710B1 (en) Pump-turbine system
EP1999376A1 (en) Method for operating a compressor unit and associated compressor unit
DE3534507C2 (en) Internal combustion engine
DE102006058837A1 (en) Lubricant-sealed rotary vane vacuum pump
DE112012002650T5 (en) Waste heat power generator
DE69914389T2 (en) Sealing device for pumps
DE10197228T5 (en) Encapsulated mechanical booster
DE102005003476B4 (en) Canned motor with closed cooling system
DE2209938B2 (en) Oil cooled power transformer for underground installation - is fitted with cage type oil pump motor enclosed inside transformer tank at coolest point
DE10301613B4 (en) Motor-pump unit
EP0188713B1 (en) Oil feeding device for vacuum pumps
DE202007002321U1 (en) Underwater pump drive for conveying and / or pumping liquids, in particular of water, or of pond and / or aquarium water
EP1999377A1 (en) Compressor unit
DE19934412C1 (en) Power-station feed-water pump arrangement esp. for gas and steam plant
DE1653721B2 (en) Single or multi-stage centrifugal pump

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20080908

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20090506

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

DAX Request for extension of the european patent (deleted)
GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 502007007058

Country of ref document: DE

Date of ref document: 20110609

Kind code of ref document: P

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502007007058

Country of ref document: DE

Effective date: 20110609

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: SIEMENS SCHWEIZ AG

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20110427

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2364680

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20110912

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20110427

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110829

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110827

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110728

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20120130

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502007007058

Country of ref document: DE

Effective date: 20120130

BERE Be: lapsed

Owner name: SIEMENS A.G.

Effective date: 20120331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120331

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 507396

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120322

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110727

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120322

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20110427

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120322

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070322

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCOW

Free format text: NEW ADDRESS: WERNER-VON-SIEMENS-STRASSE 1, 80333 MUENCHEN (DE)

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20190327

Year of fee payment: 13

Ref country code: FR

Payment date: 20190322

Year of fee payment: 13

Ref country code: GB

Payment date: 20190313

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20190624

Year of fee payment: 13

Ref country code: DE

Payment date: 20190517

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20190603

Year of fee payment: 13

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502007007058

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200331

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200331

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200331

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201001

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20200322

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200322

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20210806

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200322

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200323