EP0876555B1 - In der ladung eines schiffsladeraumes eintauchbare entladepumpe - Google Patents

In der ladung eines schiffsladeraumes eintauchbare entladepumpe Download PDF

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Publication number
EP0876555B1
EP0876555B1 EP96944137A EP96944137A EP0876555B1 EP 0876555 B1 EP0876555 B1 EP 0876555B1 EP 96944137 A EP96944137 A EP 96944137A EP 96944137 A EP96944137 A EP 96944137A EP 0876555 B1 EP0876555 B1 EP 0876555B1
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EP
European Patent Office
Prior art keywords
pump
impeller
arrangement
cargo
sleeve
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP96944137A
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English (en)
French (fr)
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EP0876555A1 (de
Inventor
Erik Dalen
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Framo Fusa AS
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Frank Mohn Fusa AS
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Publication date
Application filed by Frank Mohn Fusa AS filed Critical Frank Mohn Fusa AS
Publication of EP0876555A1 publication Critical patent/EP0876555A1/de
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Publication of EP0876555B1 publication Critical patent/EP0876555B1/de
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Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F04D13/086—Units comprising pumps and their driving means the pump being electrically driven for submerged use the pump and drive motor are both submerged
    • 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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2261—Rotors specially for centrifugal pumps with special measures
    • F04D29/2277—Rotors specially for centrifugal pumps with special measures for increasing NPSH or dealing with liquids near boiling-point

Definitions

  • the present invention relates to an unloading pump arrangement, which is suitable for submersion in the cargo of a ship's cargo tank and which has a pump inlet which is suitable for arrangement in or by a well at the bottom of the tank, where the pump arrangement comprises a main pump and an auxiliary pump which is drive connected through a vertical axis with impeller of the main pump and which has a lower inlet end which is suitable for arrangement at a level between the bottom of the well and the under side of the blades of the impeller and an upper discharge end at a level above the under side of the blades of the main pump, and where the unloading pump a discharge pipe which is suitable for discharging cargo at a delivery location via deck of the ship.
  • an unloading pump submerged in the cargo By means of an unloading pump submerged in the cargo it is possible to unload cargo in a controlled manner by stepless capacity control in all manner of types of cargo (fluid). It is possible, especially in relatively small ships, to employ pump arrangements where the pump is connected to the drive motor via a relatively long shaft, so that the drive motor for example can be placed on deck, while remaining parts of the pump arrangement can be submerged in the cargo. In other instances, and especially in relatively large ships, there is employed for practical reasons an unloading pump in the form of an elongate, means of separate suction arrangements having separate drive means, but this requires extra piping, extra drive medium and extra cleaning of the associated additional equipment, something which creates extra complications. In practice such suction arrangements are placed on the outer side of the pump arrangement, as a separate unit, but can also be arranged, as in NO Patent 300 964, internally in the pump arrangement.
  • stripping arrangements for collecting such residues of cargo, that is to say stripping arrangements, which operate together with and partially independently of the unloading pump.
  • stripping arrangements it has been possible, with an emptied loading tank, to undertake cleaning in a controlled accurate and effective manner, together with cleaning of the unloading pump itself.
  • stripping arrangements it has been usual - while the impeller of the unloading pump is kept in operation with a certain pump pressure against the residual cargo in the pump - with an extra supplied counterpressure, produced by compressed air or compressed gas, to blow the residues of the cargo from the pump pipe via a connected stripping conduit to a suitable delivery location via the deck of the ship.
  • NO Patent 178 244 it is proposed to suck inwardly into the pump the largest possible quantity of the cargo residue which otherwise is retained in the tank well, by arranging an extra pump (auxiliary pump) in drive connection with the impeller of the main pump, but then placed a considerable distance forwards, that is to say upstream of the impeller of the main pump.
  • the inlet for the unloading pump is defined between the bottom of a well in the tank and the impeller of the unloading pump.
  • the distance between the impeller of the unloading pump and the bottom of the well of the cargo tank is inter alia adapted according to the cross-sectional flow through the pump.
  • the aim of the present invention is to ensure the largest possible removal of the residues of cargo from the bottom of the tank including feeding of such residues in the impeller of the main pump. This is sought to be solved by a favourable design of the auxiliary pump.
  • an auxiliary pump which is formed of a substantially cylindrical casing portion, which is supported via a middle anchor pin which is fastened to the under side of the impeller of the main pump.
  • the casing portion is carried on the anchor pin via one or more supporting ribs, which maintain the casing portion on the anchor pin and which can form lifting blades of the auxiliary pump.
  • Substantially the same flow through cross-section is employed at the upper end of the main pump as at its lower end.
  • an auxiliary pump which is formed of a double-conical bell portion, that is to say with a lower skirt portion, which extends conically upwards converging from its lower portion towards the middle of the bell portion, and an upper portion, which extends conically upwards diverging from the middle of the bell portion obliquely upwards and outwards in the flow through passage in the impeller of the main pump.
  • the bell portion is carried via sideways directed support ribs in a common hub fastened to the under side of the main impeller.
  • the support ribs can form blades of the auxiliary pump.
  • the aim inter alia is to be to design the auxiliary pump in a constructionally and operatively simpler, and more effective manner. More specifically the aim is to adjust the conditions, so that the largest possible quantity of the cargo residues can be removed, which had to be retained in the pump arrangement after the concluded usual unloading operation, in a flow favourable manner.
  • the auxiliary pump which has the form of a part conical sleeve portion or bell portion provided with an internal flow passage, has the maximum radial internal and external dimensions at the dicharge end of the auxiliary pump and the minimum radial internal and external dimensions at the lower inlet end of the auxiliary pump, and the auxiliary pump at the discharge end thereof has a discharge chamber communicating with the impeller of the main pump through discharge openings, which empty directly out from the periphery of the discharge chamber at the height of the flow-through passage and being arranged between a conical internal guide surface and a conical external guide surface of said sleeve formed auxiliary pump.
  • auxiliary pump can be active in the whole pumping phase, that is to say both in the unloading phase and in the concluding stripping phase, without damaging effects on the normal unloading operation. More specifically, by means of the part conical sleeve portion of the auxiliary pump and the upper discharge chamber defined thereby, there can be ensured in a controlled manner an effective flow of pump medium to the upper portion of the discharge chamber with the possibility of uniform emptying from the discharge chamber to the flow-through passage in the impeller of the main pump.
  • one or more outlets from the auxiliary pump can empty out into a region, which is defined by the pump space of the main pump and a region just downstream of said pump space.
  • outlets from the auxiliary pump empty out into the pump space of the main pump just downstream of the inlets to the impeller of the main pump, that is to say at the level of or above the radially inner portion of the impeller blades of the main pump in a lower portion of the impeller of the main pump.
  • the auxiliary pump is formed from a sleeve of relatively thin-walled material diverging from below obliquely upwards and outwards, and that the sleeve is secured via its upper peripheral edge portion at a guide portion in the impeller of the main pump, the outlet openings being designed just by, that is to say immediately below the fastening of the sleeve to the impeller of the main pump.
  • the sleeve By means of a constructionally simple, separately produced sleeve of thin-walled material, the sleeve can be fastened according to the invention by simple means, such as a welding operation, to the impeller of the main pump in a ready manner.
  • Fig. 1 shows a schematic cross-section of a tanker equipped with the pump arrangement according to the invention.
  • Fig. 2 shows schematically the pump arrangement according to Fig. 1 illustrated in side view and in segment.
  • Fig. 3 shows, in a segment of Fig. 2, a vertical section of a lower portion of the pump arrangement according to a first embodiment.
  • Fig. 4 shows a plan view of the impeller of the main pump of the pump arrangement together with in part the discharges from the auxiliary pump to the main pump.
  • Fig. 5 shows in segment the auxiliary pump illustrated as a separate unit segregated from the main pump according to a second embodiment.
  • Fig. 6 shows in segment a vertical section of the impeller of the main pump and an associated auxiliary pump according to a third embodiment.
  • FIG. 1 an unloading tank 10a in a tanker 10 is shown, where bottom 11 of the tanker 10 is illustrated, which is provided with a locally defined tank well 12.
  • a lower end of an unloading pump is submerged, that is to say an inlet end 13 to a pump arrangement 14.
  • the pump arrangement 14 is adapted to operate submerged in the cargo in the tank 10a in a relatively free downwardly hanging condition, with local, centering side support not shown further arranged at suitable height levels in the cargo tank, for example along the one tank wall.
  • the tank well 12 is, as clearly shown in fig. 2, given an optimal design with respect to the collection and flow of cargo to the unloading pump and is in this connection given a concavely rounded form.
  • the pump arrangement 14 is of a corresponding submersible type and has corresponding sealing and a corresponding mode of operation to that which is shown and described in NO 123 115.
  • a pump structure comprising a pump impeller 15, which is received in a snail house-like pump housing 16.
  • the pump housing 16 is freely axially moveable relative to the well 12 and is centered relative to this by means of a combined support/control ring and spurt screen 16a, which is fastened with paws 16b to the bottom 11 of the tank 10a in or by the tank well 12.
  • a combined support/control ring and spurt screen 16a which is fastened with paws 16b to the bottom 11 of the tank 10a in or by the tank well 12.
  • an inverted funnel-shaped guide shield fastened to the pump housing 16 just below the lower edge 15a of the impeller 15.
  • the impeller 15 is driven via a short drive shaft 17 by a drive motor, for example such as shown in NO 123 115, submerged in the cargo.
  • a respective branch pipe 25a converges, of which only the one is shown herein, upwardly towards a transition portion 26a to a common cargo discharge pipe 26.
  • the discharge pipe 26 and protective pipe 23 of the hydraulic supply and discharge conduits extend in parallel upwards and pass individually through a cover 10b on a hatchway 10c on the deck of the ship.
  • the discharge pipe 26 extends further to a suitable discharge location, as shown by an arrow C just above deck 10d of the ship.
  • a stripping pipe 28 which has an intake opening 29 connected to a discharge pipe 26 at the transition portion 26a.
  • the opening 29 is connected to the transition portion 26a, that is to say connected downstream of the adjacent discharge branch conduits 25a.
  • the pump arrangement In a typical cargo tank of a ship the pump arrangement has a height from the bottom 11 of the tank 10a to just above the hatch cover on the deck 10d of the tank 10a, of 25 - 30 metres, while the remaining unloading equipment at the unloading location requires an additional lifting height of the order of magnitude of 10 metres.
  • a significant out flow (leakage) of pump medium takes place via upper and lower fissures in the pump housing 16 of the pump arrangement between the impeller 15 and certain sealing arrangements in the pump housing 16.
  • the afore-mentioned stripping operation removes in practice the major portion of the cargo, which has reached into the discharge pipe, but hitherto it has been difficult to get rid of the last residues of cargo in the well 12 and that portion, which is still to be found in the lower branch pipe 25a of the discharge system and in the pump housing 16, as a result of static pressure from such cargo residues.
  • the embodiment which is shown herein, is based on the principle known per se that an auxiliary pump is utilised in addition to the main pump.
  • the known impeller 15 forms a part of the main pump 14a, while in the illustrated embodiment an auxiliary pump 30 forms one piece with the impeller 15, that is to say the main pump 14a and the auxiliary pump 30 constitute an integral member.
  • auxiliary pump 30' is shown in the form of a separate member, comprising an impeller member 31' and a cover member 32'.
  • the auxiliary pump 30' is adapted to be able to be fastened to the impeller 15 of the main pump via fastening screws received in bores 33' correspondingly as shown to the left in Fig. 5.
  • auxiliary pump 30' can constitute an integral part of the impeller of the main pump.
  • the cover 32' is adapted to be clamped in place between impeller member 31' of the auxiliary pump 30' and impeller 15 of the main pump adapted for this.
  • the cover member 32' can be screwed in place or secured in another suitable manner to impeller member 31' of the auxiliary pump 30'.
  • the auxiliary pump 30 (see Fig. 3 and 4) is especially effective in connection with the stripping phase according to the present invention, that is to say on stripping via the auxiliary pump 30, but is necessarily also active during the unloading operation itself.
  • the auxiliary pump 30 consists of an upwardly and outwardly diverging, sleeve-shaped or bell-shaped impeller member 31.
  • the impeller member 31 projects, as shown in Fig. 2, with a lower inlet 35 a considerable length below lower edge 15a of the impeller 15 and an additional length below lower edge 16c' of the guide shield 16c, downwards towards the bottom of the tank well 12.
  • the inlet 35 can be localised so tightly above the bottom of the tank well 12 that the free inflow of the pump medium to the interior of the impeller 31 can be accurately ensured (such alternative localising is not shown further herein).
  • the impeller member 31' (see Fig. 5) has externally an upwardly and outwardly diverging guide face 36, which at a lower portion 36a extends approximately rectilinearly upwards at an oblique angle u and continues thereafter obliquely upwards and outwards with an upper curved portion 36b, which in turn continues in impeller 15 of the main pump 14a further radially outwards via a curved portion 15b (see Fig. 3) and a subsequent rectilinear portion 15c.
  • the impeller member 31' (see fig.
  • the outlet chamber 38 is defined above by the cover 32' (see Fig. 5) or a terminating face 32 (see Fig. 3), while below it communicates with a relatively smooth-walled flow-through chamber 39, which has an increasing cross-section from the inlet 35 towards the chamber 38.
  • the inlet 35 is shown with a minimum diameter D1 (see Fig. 5), while the outlet chamber 38 is shown with a maximum diameter D2, where the maximum diameter D2 is at least one and a half times greater than the minimum diameter D1 and preferably, such as is shown in Fig. 3 and 5, twice as large as the minimum diameter D1.
  • outlet ducts 40 are shown, which empty radially outwards from the outlet chamber 38 to an adjacent equivalent seven mutually separated flow through ducts 41 of the impeller 15.
  • the number of outlet ducts 40 and the number of ducts 41 can be greater or smaller than seven, all according to need.
  • Fig. 4 there is shown in section flow through ducts/openings 41, central axis 41a of which extends curved in a radial plane along the centre axis 40a of the outlet ducts/openings 40.
  • outlet ducts 40 extend radially outwards in a vertical plane through coinciding central axis of chambers 38 and 39, that is to say at right angles to the peripheral wall of the chamber 38, and thereby at a considerable angle to guide blades 42 of the impeller 15 (see Fig. 4).
  • the central axis 40a of the outlet ducts/openings 40 can extend in a vertical plane parallel to the centre line 39a of the chamber 39, that is to say at a significant oblique angle to the peripheral wall of the chamber 38 and thereby at a smaller oblique angle to - or more or less in a direction along - respective guide blades 42 (see Fig. 5) of the impeller 15.
  • axis 40a of the outlet ducts/openings 40 forms a vertical angle u with central line 41a of the ducts 41 and a vertical angle v with upper defining face 36c of the duct 41.
  • auxiliary pump 30 two separate flows A and B are obtained for the supply of cargo medium to the main pump in a conventional unloading sequence, namely a main flow A arranged radially outside the auxiliary pump 30 and an extra flow B arranged internally in the auxiliary pump 30. It is evident from Figs. 3 and 4 that the combined flow through the seven ducts/openings 40 constitutes a small fraction cf the main stream A through the ducts 41.
  • the flow B can continue fully in that the inlet 35 of the auxiliary pump 30 is submerged in the cargo to a level below the lower edge 16c' of the screen 16c.
  • said cross-sectional increase provides a tendency for an accumulation of pump medium in the chamber 38 just in front of the outlet ducts 40, so that the external suction effect from the ducts 41 towards the ducts 40 can be utilised in an effective manner internally in the impeller 30. It is considered as an advantage that the portions of the pump medium which are introduced into the duct/chamber 39 can be kept in place relatively stable within the impeller independently of possible variations in the flow of pump medium to the inlet 35 of the impeller 30.
  • the ducts 40 can, if desired, be milled ("utfrese") or remoulded ("utst ⁇ pe") partly in the impeller 30' and partly in a cover which covers the auxiliary pump 30' at a level above the chamber 38.
  • the cover member and the impeller member are fastened effectively together in a mutually non-rotatable manner, for example by means of fastening bolts and/or guide pins.
  • the use can also be considered of a separate insert member, which is arranged axially displaceable internally in the auxiliary pump 30 and which is movable a limited axial length internally in the auxiliary pump 30.
  • the insert member can initially project radially below the inlet 35 and for example by means of a spring force be pressed downwards to a level just above the bottom of the tank well.
  • By arranging sideways directed intake openings in the insert member the insert member can if necessary be arranged rather tightly up to the bottom of the tank well.
  • an auxiliary pump 30'' is shown of corresponding external contour to that which is shown in Figs. 3 and 5, but with a somewhat differing wall thickness and somewhat differing internal contour.
  • the auxiliary pump 30'' is made of a plane steel plate, which is pressed to the part-conical contour illustrated, so that a part-conical sleeve is formed of essentially uniform wall thickness.
  • a number (for example six or seven) flow-through openings 40'' (of which only two are shown in Fig. 6) are drilled in an obliquely upwardly and outwardly directed direction.
  • the auxiliary pump 30'' which is in the form of said sleeve, is shown in Fig. 6 in a permanently integrated condition in impeller 15 of the main pump.
  • a cup-shaped portion 15'' known per se on the impeller 15 projects a distance downwardly into the sleeve or the auxiliary pump 3C'' and forms internal guide means in the upper half of the passage 39 and defines an upper chamber 38, which has a decreasing cross-section heightwise in the same.

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

Claims (7)

  1. Entladepumpenanordnung, die zum Eintauchen in die Ladung eines Schiffsladetanks (10a) geeignet ist und die einen Pumpeneinlass (13) hat, der zur Anordnung in oder an einer Vertiefung (12) an dem Boden (11) des Tanks (10a) geeignet ist, wobei die Pumpenanordnung (14) eine Hauptpumpe (14a) und eine Hilfspumpe (30, 30', 30") umfasst, die durch eine vertikale Achse mit einem Pumpenrad (15) der Hauptpumpe (14a) antriebsverbunden ist und die ein unteres Einlassende (35), das zur Anordnung auf einem Niveau zwischen dem Boden der Vertiefung (12) und der Unterseite der Schaufeln (15c) des Pumpenrads (15) geeignet ist, und ein oberes Auslassende auf einem Niveau oberhalb der Unterseite der Schaufeln (15c) der Hauptpumpe (14a) hat, und wobei die Entladepumpe ein Auslassrohr (26) aufweist, das zum Entlassen von Ladung über das Schiffsdeck (10d) an einem Abgabeort geeignet ist,
    dadurch gekennzeichnet,
    dass die Hilfspumpe (30, 30', 30"), die die Form eines mit einer inneren Strömungspassage (39) versehenen teilweise konischen Hülsenabschnitts oder Glockenabschnitts hat, maximale radiale innere und äußere Abmessungen an dem Auslassende der Hilfspumpe (30, 30', 30") und minimale radiale innere und äußere Abmessungen an dem unteren Einlassende (35) der Hilfspumpe (30, 30', 30") hat, und
    dass die Hilfspumpe (30, 30', 30") an ihrem Auslassende eine Auslasskammer (38) hat, die mit dem Pumpenrad (15) der Hauptpumpe (14a) durch Auslassöffnungen (40, 40") kommuniziert, die sich direkt aus der Peripherie der Auslasskammer (38) heraus auf Höhe einer Strömungsdurchgangspassage (41) der Hauptpumpe entleeren und zwischen einer konischen inneren Führungsfläche und einer konischen äußeren Führungsfläche der hülsenförmigen Hilfspumpe angeordnet sind.
  2. Anordnung nach Anspruch 1,
    dadurch gekennzeichnet, dass die innere Strömungspassage (39) der Hilfspumpe (30, 30', 30") einen Bereich mit ansteigenden Durchmesser zwischen dem unteren Einlass (35) und dem oberen Auslass (bei 38) hat, wobei das Verhältnis zwischen einem Durchmesser D2 an dem Auslass (bei 38) und einem Durchmesser D1 an dem Einlass größer als 1 ist, das heißt D2/D1 > 1 ist.
  3. Anordnung nach Anspruch 1 und 2,
    dadurch gekennzeichnet, dass die äußere Führungsfläche (36) der Hilfspumpe (30, 30', 30") eine strömungsvergrößernde Umfangsabmessung hat.
  4. Anordnung nach einem der Ansprüche 1 - 3,
    dadurch gekennzeichnet, dass die Auslassöffnungen (40, 40") sich in die Strömungsdurchgangsleitung (41) des Haupt-Pumpenrads (15) auf einem Niveau der Schaufeln (15c) des Haupt-Pumpenrads (15) entleeren.
  5. Anordnung nach einem der Ansprüche 1 - 4,
    dadurch gekennzeichnet,
    dass die Hilfspumpe (30") aus einer Hülse von relativ dünnwandigem Material gebildet ist, die von unten schräg nach oben und außen divergiert, und
    dass die Hülse über ihren oberen Umfangsrandabschnitt (30a") an einem Führungsabschnitt (36a", 36b") an dem Pumpenrad (15) der Hauptpumpe gesichert ist,
    wobei die Auslassöffnungen (40") genau an, d. h. unmittelbar unterhalb der Befestigung der Hülse an dem Pumpenrad (15) der Hauptpumpe ausgebildet sind.
  6. Anordnung nach Anspruch 5,
    dadurch gekennzeichnet, dass der obere Umfangsrandabschnitt (30a") der Hülse in einem Ringhohlraum (36") in einem schräg nach oben und nach außen gekrümmten inneren Führungsabschnitt (36a", 36b") in dem Pumpenrad (15) der Hauptpumpe aufgenommen ist,
    wobei der Umfangsrandabschnitt (30a") mit einem oberen inneren Führungsabschnitt (36a") in dem Pumpenrad (15) der Hauptpumpe fluchtet.
  7. Anordnung nach einem der Ansprüche 5 oder 6,
    dadurch gekennzeichnet, dass sich ein radial äußerer Abschnitt des oberen Öffnungsrandes (40a") der Auslassöffnungen (40") der Hülse schräg nach oben und nach außen, bündig abschneidend mit dem oberen inneren Führungsabschnitt (36a") in dem Pumpenrad (15) der Hauptpumpe erstreckt und sich ein radial innerster Abschnitt des oberen Öffnungsrandes der Auslassöffnungen (40") der Hülse schräg nach oben und nach außen, bündig abschneidend mit einem unteren inneren Führungsabschnitt (36b") in dem Pumpenrad (15) der Hauptpumpe erstreckt, wobei die Auslassöffnungen (40") der Hülse vorzugsweise aus schräg nach oben und nach außen gerichteten Bohrungen gebildet sind.
EP96944137A 1996-01-26 1996-12-09 In der ladung eines schiffsladeraumes eintauchbare entladepumpe Expired - Lifetime EP0876555B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO960318 1996-01-26
NO960318A NO301112B1 (no) 1996-01-26 1996-01-26 Anordning ved lossepumpe som er neddykkbar i lasten i en skipslastetank
PCT/NO1996/000286 WO1997027403A1 (en) 1996-01-26 1996-12-09 Improvements in an unloading pump which is submersible in the cargo of a ship's cargo tank

Publications (2)

Publication Number Publication Date
EP0876555A1 EP0876555A1 (de) 1998-11-11
EP0876555B1 true EP0876555B1 (de) 2002-03-13

Family

ID=19898971

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96944137A Expired - Lifetime EP0876555B1 (de) 1996-01-26 1996-12-09 In der ladung eines schiffsladeraumes eintauchbare entladepumpe

Country Status (4)

Country Link
EP (1) EP0876555B1 (de)
AU (1) AU1401397A (de)
NO (1) NO301112B1 (de)
WO (1) WO1997027403A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60008908D1 (de) 1998-12-04 2004-04-15 Soerensen Emil Aarestreup Behälter und zentrifugalpumpe zur entleerung des behälters
DE60004533D1 (de) * 1999-06-07 2003-09-18 Hamworthy Kse Svanehoj As Sven Pumpenanordnung zum pumpen einer flüssigkeit aus einem tank oder behälter
CN101871461B (zh) * 2009-11-13 2012-12-05 天津甘泉集团有限公司 一种带有瓦块状楔形锥套的自耦安装的轴、混流潜水电泵
NO335507B1 (no) * 2010-06-18 2014-12-22 Frank Mohn Fusa As Anordning ved pumpe

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO276773L (de) * 1973-07-05 1975-02-03 Thune Eureka As
NO178244B (no) * 1993-10-18 1995-11-06 Mohn Fusa As Frank Anordning ved lossepumpe som er neddykkbar i lasten i en skipslastetank

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Publication number Publication date
EP0876555A1 (de) 1998-11-11
AU1401397A (en) 1997-08-20
WO1997027403A1 (en) 1997-07-31
NO960318D0 (no) 1996-01-26
NO960318L (no) 1997-07-28
NO301112B1 (no) 1997-09-15

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