EP0541883A1 - Mit einer Reaktionsturbine angetriebene Pumpe - Google Patents

Mit einer Reaktionsturbine angetriebene Pumpe Download PDF

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Publication number
EP0541883A1
EP0541883A1 EP91870183A EP91870183A EP0541883A1 EP 0541883 A1 EP0541883 A1 EP 0541883A1 EP 91870183 A EP91870183 A EP 91870183A EP 91870183 A EP91870183 A EP 91870183A EP 0541883 A1 EP0541883 A1 EP 0541883A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
turbine
pump
motor pump
motor
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
EP91870183A
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English (en)
French (fr)
Other versions
EP0541883B1 (de
Inventor
Guido Vandendorpe
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.)
Guido Vandendorpe
Original Assignee
Baggerwerken Decloedt and Zoon NV
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
Priority to DE69103758T priority Critical patent/DE69103758T2/de
Application filed by Baggerwerken Decloedt and Zoon NV filed Critical Baggerwerken Decloedt and Zoon NV
Priority to DK91870183.0T priority patent/DK0541883T3/da
Priority to EP91870183A priority patent/EP0541883B1/de
Priority to AT91870183T priority patent/ATE110823T1/de
Priority to US07/971,526 priority patent/US5316449A/en
Priority to JP4300866A priority patent/JPH06341393A/ja
Priority to CA002078849A priority patent/CA2078849A1/en
Publication of EP0541883A1 publication Critical patent/EP0541883A1/de
Application granted granted Critical
Publication of EP0541883B1 publication Critical patent/EP0541883B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/04—Units comprising pumps and their driving means the pump being fluid driven
    • F04D13/043—Units comprising pumps and their driving means the pump being fluid driven the pump wheel carrying the fluid driving means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/005—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of dissimilar working principle
    • F04C11/006—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of dissimilar working principle having complementary function
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D3/00—Axial-flow pumps
    • F04D3/005—Axial-flow pumps with a conventional single stage rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D3/00—Axial-flow pumps
    • F04D3/02—Axial-flow pumps of screw type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts

Definitions

  • the invention relates to a jet pump powered by a pressurized fluid for pumping liquids or liquids laden with solids.
  • Motor pumps with rotary pump and turbine drive are already known. These motor pumps are distinguished not only by the types of pumps used and by the model of the turbine, but also by the reciprocal arrangement of the turbine and the pump, and ipso facto, by the mechanical transmission of the movement between these two constituent parts of the motor pump.
  • Motor pumps are known in particular, in which the turbine and the pump are arranged in line, that is to say that the axis of the pump and the axis of the turbine are placed in the extension one of the other.
  • at least one of the two pipes (inlet and outlet) of the pump is arranged perpendicularly or obliquely to the axis of the pump, while the second pipe is either arranged perpendicularly or obliquely relative to the axis of the pump, or in line with the axis of the pump (on the side of the pump which is opposite the turbine).
  • Application DE-A-3 008 334 describes a tangential turbine driving a pump whose rotary body is formed by the hollow shaft of the turbine; the machine described in application DE-A-3 008 334 operates with steam; the machine described is bulky and suitable only for static use.
  • the document CH 465 413 describes a single-axis pump intended for a fixed installation in an atomic power station.
  • the pump is driven by a peripheral turbine.
  • the pump rotor has a central hub, supported by bearings which encroach on the available section, with no possible mixing between the working fluid and the pumped fluid.
  • US Pat. No. 2,113,213 describes cylindrical pumps formed from a small rotary pump and a concentric turbine. These pumps are intended to operate in wells to extract water or oil. These pumps, mounted in series, are placed in an enclosure and driven under the sheet to be pumped. Each pump has vents at its base. When a pressurized fluid is injected into the enclosure, it rises through the vents, putting the turbine in rotation and thus actuating the pump. The working fluid then mixes completely with the pumped liquid to rise to the surface.
  • the elinde In suction dredgers, the elinde is fitted with a suction pipe intended to bring the dredged material (mud and / or sand) into the dredger wells or into discharge pipes.
  • a suction pipe intended to bring the dredged material (mud and / or sand) into the dredger wells or into discharge pipes.
  • a submerged motor pump therefore works under load and therefore its suction performance is improved.
  • the use for such applications of currently known motor pumps creates very serious technical problems which are in particular due to the high weight and the large size of these motor pumps and the bent pipes which are connected thereto.
  • a submerged dredging motor pump that can be connected to piping with a diameter of 650 mm, represents commonly a weight of the order of 25 t, a length of 6 m and a lateral space requirement of 3 m (including bent pipes and the frame necessary to take up the stresses generated during maneuver and operation).
  • the operation of a dredge head equipped with such a motor pump of known type requires heavy and expensive handling equipment, and a lot of skill.
  • Patent EP-0 033 640 from the same inventor describes a turbine pump driven by a pressurized fluid more particularly suitable for dredging operations in which the pump and the turbine are arranged concentrically, the working fluid and the pumped liquid passing through the motor pump in an axial direction.
  • a motor pump according to EP-0 330 640 does not yet solve all the problems. In view of its power, it is still quite bulky and developed in length, which implies a high cost (in weight of metal), as well as the use of relatively expensive handling equipment; it requires a large volume of working fluid, therefore large diameter supply pipes, which results in a significant additional weight. Its dimensions still make it sensitive to the stresses incurred during maneuvers and in service.
  • the motor pump according to the invention can be used in particular as a submerged motor pump and is in particular very advantageous as an immersed dredging motor pump and for the exploitation of marine sediments at great depth.
  • the application of the motor-driven pump according to the invention is however not in any way limited to these particular cases and it can also be advantageously used as a non-submerged motor-driven pump for pumping various liquids or liquids laden with solids (for example suspensions ores and / or coal in the water).
  • Another object of the invention is to obtain a very robust motor-driven pump, self-supporting by its very structure, and resistant to axial stresses as well as to torsion and bending.
  • Another object of the invention is to provide a motor pump which allows easy control of the speed of the turbine and, thereby, of the flow and pressure of the pumped liquid.
  • the invention also aims a motor pump of lower manufacturing cost, at equal power, than what is known in the state of the art.
  • Another object of the invention is to provide such a motor pump which can be advantageously used for the pumping of liquids heavily loaded with solids and therefore suitable as a dredging motor pump or exploitation of seabed sediments.
  • the invention aims to provide such a motor pump in which the energy losses are significantly reduced.
  • Another object of the invention is to provide a motor pump whose bearings are effectively protected having regard to their conditions of use.
  • Another object of the invention is a motor pump with low maintenance cost and whose members can easily be replaced.
  • the subject of the invention is a motor-driven turbine pump driven by a pressurized fluid and rotary pump intended for pumping liquids and liquids laden with solid particles, which comprises: a fixed pump body comprising a tube constituting a cylindrical suction orifice and a tube constituting a cylindrical discharge orifice, these two tubes, of the same internal diameter, being arranged in line with one another; a rotary sleeve, of internal diameter substantially equal to that of these two pipes, mounted in line between these pipes, with a small clearance relative to the latter, this sleeve being able to rotate around its axis, rotary pumping members being mounted inside this sleeve and being integral therewith; a drive turbine actuated by pressurized fluid mounted in a ring around the sleeve, a rotor supporting the blades of the turbine being mounted outside the sleeve and being integral with the latter; injection means allowing the injection of a fluid into the turbine and expulsion means allowing the evacuation of this fluid out of the turbine
  • the turbine is a reaction turbine which comprises a rotor which flares out on the injection side, then goes tighter towards one of its ends; this rotor supports vanes which extend on the side of the injection of the pressurized fluid, substantially in the radial direction and on the side of the discharge of this fluid, substantially in the axial direction, however marking a slight divergence from in this axial direction; the injection means are arranged in a ring around the turbine and comprise a distribution ring fixed to the casing in an easily removable manner; the envelope comprises two cylindrical elements assembled end to end in an easily removable manner; regulating means capable of influencing the flow of pressurized fluid are arranged around the turbine, between the distribution ring and the rotor.
  • the motor pump comprises a simple rotor, the means for expelling the pressurized fluid being located on the side of the delivery orifice.
  • the motor pump comprises a double rotor formed by two rotors paired on the same sleeve, with their joint admission, the means for expelling one of these rotors being located on the side of the discharge orifice , the means for expelling the other rotor being located on the side of the suction orifice.
  • annular seals are arranged between the sleeve and the pipes, these seals being able to prevent the passage of pumped liquid and particles from the interior of the sleeve to the annular space constituting the interior of the envelope without impede the rotation of the sleeve.
  • the annular space constituting the interior of the casing is advantageously subdivided, on each side of the sleeve, into two chambers separated by a rotary joint, the first chamber being separated by an annular seal from the interior of the pump, the second chamber opening onto a bearing, this second chamber being disposed on the passage of the pressurized fluid escaping from the turbine and capable of being put under slight overpressure relative to the first chamber, so as to prevent the passage of pumped liquid, loaded with solid particles, towards the bearings.
  • the cylindrical elements are preferably extended on the side of their common end, by a flange extending outwards.
  • the regulation means include adjustable fins and fixed deflectors.
  • the rotary pumping members comprise, according to a proven embodiment, helical blades (developing from the internal face of the sleeve and directed towards the axis thereof).
  • an empty space extends between the axis of the sleeve and the blades.
  • said blades are connected along a line which coincides with the axis of the sleeve.
  • the rotary pumping members comprise an Archimedes screw.
  • the rotary pump is a Moineau pump, the external part of which is integral with the internal face of the sleeve and disposed along the axis thereof, one of the ends of the central part, engaged in the part external, being fixed by a coupling to a shaft, the other end of this shaft being connected, also by a coupling, to a support integral with the fixed pump body.
  • Another object of the invention is a device removal of sediment from the sea, river or lake bottom mounted on a dredging machine and comprising a elinde, one end of which, intended to be submerged, is equipped with a head, and at least one motor pump connected to said elinde; this device comprises at least one motor-driven pump conforming to what has been described above which is connected to the strainer near its submerged end; the axis of rotation of these or this motor-pump coinciding with the axis of the strainer so that the pumped sediments do not undergo an axial change of direction going up towards the other end of the strainer.
  • This device can be installed on a dredging boat, for example, whether it is trailing, stationary or fixed point, with disaggregator. It can also be used on a deep-sea nodule exploitation boat.
  • An advantage of the turbopump according to the invention lies in its reduced weight compared to other machines ensuring the same function, with equal characteristics.
  • Another advantage is that the speed of the turbine can easily be adjusted, which makes precise control of dredging operations possible.
  • Another advantage is that, given the possible variations in the torque and in the speed of the turbine, the motor pump can be equipped with a large variety of different pumps, depending on the applications.
  • Another advantage is that the motor pump can be easily disassembled and reassembled, which makes it possible to check the state of wear of the parts in a minimum time.
  • Another advantage is that, due to the presence of a double partitioning by "clean" fluids between the bearings and the pumped water, loaded with solid particles, the bearings benefit from a very long service life.
  • Another advantage is that the turbine is powered by a high pressure fluid, so that the volume of fluid used, and therefore the size of the conduits can be reduced.
  • Another advantage is that the motor pump can be used in all positions and at any angle.
  • the motor pump 1 shown in FIG. 1 comprises an envelope essentially formed by two cylindrical elements 2. These elements 2 are joined to each other with a small gap by flanges 3 extending outwards. This union is achieved by assembly means, in this case bolts 4. Each bolt 4 is mounted on spouts 5, which allows it to rotate after tightening. Each bolt 4 supports, in its middle a movable fin 6 and can be rotated by means of pivoting washers 7 actuated by a pivoting device (not shown).
  • the two cylindrical elements 2 and their flanges 3 form the stator of an easily removable turbine.
  • a scroll fluid distributor element 8 in the form of a volute is fixed to the periphery of the stator, at the level of the gap separating the two flanges 3.
  • Fixed fins 9 are arranged between the flanges 3 so that the fluid is optimally oriented, the movable fins 6 making it possible to vary the angle of attack of this fluid and therefore to vary the speed of the turbine .
  • the free ends of the cylindrical elements 2 are fixed by bolts each to a conical part 10, 11 of inlet or outlet comprising a fixing flange 12 at its end of smaller diameter.
  • This mounting flange 12 makes it possible to connect the motor pump 1 to suction and discharge pipes (not shown).
  • an annular part 13, 14, these annular parts 13, 14 constituting the suction and discharge orifices of the pump and also the fixed part of the pump. These parts 13, 14 converge slightly towards their end so as to give the pump 1 an optimum efficiency.
  • a sleeve 15 aligned along the same axis as these annular parts 13, 14 and having at its ends substantially the same internal diameter as these annular parts 13, 14.
  • This sleeve 15 is a common element between the pump and the turbine, which constitutes both the border between these two essential parts of the motor pump and the transmission between these two parts.
  • the rotor 16 of the turbine with its blades 17 is attached to or part of the outer face of the sleeve.
  • the blades 17 extend from a part of the rotor 16 of larger diameter located opposite the inlet 18 (which is arranged radially) in a double curvature to a part of this rotor 16 of smaller diameter where said blades 17 are arranged substantially axially, which makes it possible to recover energy from the fluid under high pressure with very high efficiency.
  • the rotor shown in FIG. 1 constitutes a double rotor, that is to say that it is provided with two rotors comprising two series of matched blades 17, one pointing, in the axial direction, on the same side as the inlet orifice 14 of the motor pump 1, the other pointing in an axially opposite direction.
  • This configuration has the advantage of practically balancing the axial thrust generated by the fluid under pressure on the rotor 16.
  • the rotary mass can be lightened by providing blind holes therein also serving for dynamic balancing of the moving part.
  • the exhaust is arranged on the same side as the discharge orifice 13 of the pump, so as to generate on the rotor 16 a thrust opposite to that generated by the liquid pumped on the pump rotor.
  • the volute distributor 8 is supplied with a fluid under high pressure. This fluid is distributed around the turbine and escapes centripetally between the two flanges 3.
  • the pressurized fluid reaches the vanes 17 to which it imparts a thrust causing the rotation of the sleeve 15, and, thereby, pumping means 19 which are fixed to its internal face.
  • the working fluid is released after use in two exhaust chambers 20 arranged on either side of the turbine.
  • the calibrated orifices 21 are drilled over the entire periphery of these chambers 20 so as to allow the fluid under pressure to escape while maintaining a slight overpressure with respect to the ambient medium inside these chambers.
  • Axial 22 and radial 22a bearings and their seals 22b are placed at the outer periphery of the sleeve 15. These members are lubricated by a fraction of particularly purified and centrifuged fluid introduced under pressure by supply channels passing through the axial 22 and radial bearings 22a and supplied by external conduits 22c supplied by a pump (not shown), which can moreover, if necessary, be on the surface; the punctual injection of lubricating fluid allows the rotor 16 of the turbine to literally "float" and remain centered in a stable manner on the center of rotation of the mobile part.
  • Each exhaust chamber 20 communicates via a sliding contact with a second chamber 23 which is itself under overpressure relative to the interior of the sleeve 15.
  • This overpressure is obtained by the presence of a connection conduit 24 opening into the second chamber 23 to which is connected a water pump (not shown).
  • the "clean" water supplying this pump is taken from the environment (at the level of the conical elements 10, 11 or further, or even at the surface).
  • This water is injected into the second chambers 23 at a pressure higher than that prevailing in the pump body under operating conditions where the chambers 23 are located, it will be noted that this pressure will not be identical depending on whether one is located on the "upstream” side or on the “downstream” side of the pump and that the pressure in these chambers must therefore vary accordingly.
  • O-rings 29 of different diameters are arranged between the various parts of the stator (for example, between the cylindrical elements 2 and the two conical parts 10, 11, respectively of suction and discharge), which makes possible easy disassembly of the part more specifically affected by dredging (that is to say the pump) without having to dismantle the turbine.
  • Reinforcement structures 30 extend between each flange 3 and the corresponding cylindrical element 2; the motor pump 1 thus equipped withstands very well both the stresses in tension and the torsional moments likely to occur in extreme operating conditions.
  • the second part of the motor pump 1 is constituted by the pump itself which consists of pumping means 31 fixed inside the sleeve (either as shown in Fig. 1, helical blades), the pump comprising a part mobile (the sleeve 15 and the blades 31) and a fixed part (the fixed suction and discharge rings 13, 14).
  • the advantage of the motor pump 1 is that the energy of the working fluid is transmitted without mechanical losses due to a coupling or a speed reducer directly to the pump; in addition, thanks to the turbine, the risks linked to the use of electricity in the marine environment or in humid places (inherent to pumps with electric motor) are eliminated.
  • Fig. 2 shows a motor pump 35 similar to the motor pump 1 shown in FIG. 1, but fitted with an "inverted” sparrow pump and not with a vane pump.
  • the outer part 36 of the Moineau pump is fixed inside the rotary sleeve 15.
  • the central part 37 of the Moineau pump is fixed, by means of a coupling 38, to the end of a shaft 39 which, by its other end, is connected by means of a coupling 40 to a fixed support integral with the suction pipe.
  • a motor pump 35 equipped with a Moineau pump is particularly advantageous for pumping at constant flow rate, under high pressure, viscous mixtures such as mud or clay mixtures.
  • Fig. 3 is a sectional view of an embodiment of the turbopump in which the pumping means have the form of an Archimedes screw.
  • the motor pump is suitable for mounting a wide variety of rotary type pumps.
  • Fig. 4 schematically illustrates a type of dredging boat 42 provided with in-line dredging devices 43 according to the invention.
  • a dredging device 43 is arranged on the port side, in the raised position for transport.
  • a second device 43 is in place, lowered towards the bottom.
  • Each device 43 comprises a strainer 44 which is brought back to the bottom to be dredged.
  • This strainer 44 is connected to a secondary strainer 45.
  • This secondary strainer 45 is connected to the suction orifice of a motor pump according to the invention. The latter is constantly “in charge” and returns the liquid sucked in via the main strainer 46 to the suction pump 47 placed on board the dredging boat 42.
  • this pump d suction 47 can simply be omitted. If the depth or density of the pumped liquid justifies it, it is perfectly possible to place a second pump 1 in line behind the first.
  • motor pump according to the invention has been described in the context of an application to dredging, it can also be used for other applications with different types of rotary pumps whenever trying to reduce the size of a pump and its drive system, or when it comes to working in difficult conditions from the point of view of maintenance, for liquids laden with salts or mineral particles (coal, sand, diamond-bearing mud, etc.) and in particular in mines, in the transport of waste water, etc.
  • a particularly advantageous point is the fact that, within an environment particularly testing for the material, in this case the marine, saline and corrosive environment, the dredge pump precisely uses the surrounding liquid, additionally charged, to actuate and lubricate the moving components. This considerably simplifies its design and maintenance and provides a coefficient of prolonged use.
  • the pump 1 being in the axis of the elinds 45, 46 supports much better the stresses generated by the maneuvers (embarkation, disembarkation) and the service (hooking, immobilization of the bottom strainer by suction effect, effect of drop).
  • the elind is kept vertical and comprises a sufficient number of concentric pumps 1 to ensure the delivery of nodules taken from the seabed to the surface.
  • care is taken to rotate the pumps, two by two, in opposite directions so as not to subject the elinde to excessive torsional force at start-up or when the speed of the turbines is changed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Saccharide Compounds (AREA)
EP91870183A 1991-11-14 1991-11-14 Mit einer Reaktionsturbine angetriebene Pumpe Expired - Lifetime EP0541883B1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DK91870183.0T DK0541883T3 (da) 1991-11-14 1991-11-14 Af en reaktionsturbine drevet pumpe
EP91870183A EP0541883B1 (de) 1991-11-14 1991-11-14 Mit einer Reaktionsturbine angetriebene Pumpe
AT91870183T ATE110823T1 (de) 1991-11-14 1991-11-14 Mit einer reaktionsturbine angetriebene pumpe.
DE69103758T DE69103758T2 (de) 1991-11-14 1991-11-14 Mit einer Reaktionsturbine angetriebene Pumpe.
US07/971,526 US5316449A (en) 1991-11-14 1992-11-03 Motor-driven pump with reaction turbine
JP4300866A JPH06341393A (ja) 1991-11-14 1992-11-11 反動タービンを備えた電動ポンプ
CA002078849A CA2078849A1 (en) 1991-11-14 1992-11-13 Motor-driven pump with reaction turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP91870183A EP0541883B1 (de) 1991-11-14 1991-11-14 Mit einer Reaktionsturbine angetriebene Pumpe

Publications (2)

Publication Number Publication Date
EP0541883A1 true EP0541883A1 (de) 1993-05-19
EP0541883B1 EP0541883B1 (de) 1994-08-31

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ID=8209034

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91870183A Expired - Lifetime EP0541883B1 (de) 1991-11-14 1991-11-14 Mit einer Reaktionsturbine angetriebene Pumpe

Country Status (7)

Country Link
US (1) US5316449A (de)
EP (1) EP0541883B1 (de)
JP (1) JPH06341393A (de)
AT (1) ATE110823T1 (de)
CA (1) CA2078849A1 (de)
DE (1) DE69103758T2 (de)
DK (1) DK0541883T3 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5796197A (en) * 1996-12-09 1998-08-18 Franklin Electric Co., Inc. Submersible motor sealing system
CN1078316C (zh) * 1997-07-18 2002-01-23 中国科学院金属腐蚀与防护研究所 一种耐磨耐蚀高效泵
GB201818140D0 (en) * 2018-11-07 2018-12-19 Keatch Richard William Fluid pump and method of use
GB201818871D0 (en) * 2018-11-20 2019-01-02 James Fisher Mfe Ltd An apparatus for underwater excavation
CN110454402B (zh) * 2019-09-21 2024-04-12 河南海光兰骏矿山技术有限公司 一种水仓清淤用风动泵及其工作方法
CN110552894B (zh) * 2019-09-23 2024-04-19 扬州大学 一种无轴泵及其使用方法

Citations (3)

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Publication number Priority date Publication date Assignee Title
DE466165C (de) * 1927-08-09 1928-10-01 Escher Wyss Maschf Ag Pumpenanlage mit Elektromotorantrieb und einer mit dem Pumpenlaufrad zu einem Radkoerper vereinigten Hilfswasserturbine
CH553334A (fr) * 1972-09-21 1974-08-30 Charmilles Sa Ateliers Installation destinee a assurer la circulation d'un liquide entre deux niveaux.
EP0330640A1 (de) * 1988-01-18 1989-08-30 N.V. BAGGERWERKEN DECLOEDT & ZOON Turbinenmotorpumpe und Drehpumpe

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US1165794A (en) * 1914-07-27 1915-12-28 Mcclave Brooks Co Turbine-blower.
US2761617A (en) * 1953-07-07 1956-09-04 Boeing Co Air-driven blowers
US3330213A (en) * 1965-07-07 1967-07-11 Donaldson Archibald Donald Turbine drive helical pump
CH465413A (de) * 1966-11-18 1968-11-15 Siemens Ag Kühlmittelpumpenaggregat in einem Druck- oder Siedewasserreaktor
US4008983A (en) * 1974-11-27 1977-02-22 Tech Development Inc. Tip turbine inflating device with motor-actuated closure at inlet
DE3008334A1 (de) * 1980-03-05 1982-02-04 Josef 6600 Saarbrücken Gulaif Wasserrohrschrauben, verdichter und kondensationsturbine, mit kondensationsfalle, zentrisch ineinander gelagerten roehren, speisewasser und raumheizungspumpe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE466165C (de) * 1927-08-09 1928-10-01 Escher Wyss Maschf Ag Pumpenanlage mit Elektromotorantrieb und einer mit dem Pumpenlaufrad zu einem Radkoerper vereinigten Hilfswasserturbine
CH553334A (fr) * 1972-09-21 1974-08-30 Charmilles Sa Ateliers Installation destinee a assurer la circulation d'un liquide entre deux niveaux.
EP0330640A1 (de) * 1988-01-18 1989-08-30 N.V. BAGGERWERKEN DECLOEDT & ZOON Turbinenmotorpumpe und Drehpumpe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SOVIET INVENTIONS ILLUSTRATED September 1971 Derwent Publications Ltd., London, GB; & SU-A-280 232 (I.YU. CHAPLIGIN) 27 May 1969 BUL 27/26-08-1970 *

Also Published As

Publication number Publication date
EP0541883B1 (de) 1994-08-31
DE69103758D1 (de) 1994-10-06
US5316449A (en) 1994-05-31
DE69103758T2 (de) 1995-01-05
CA2078849A1 (en) 1993-05-15
JPH06341393A (ja) 1994-12-13
ATE110823T1 (de) 1994-09-15
DK0541883T3 (da) 1995-03-20

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