EP3511056A1 - Gegenstromschwimmsystem und schwimmbadanlage, die ein solches system umfasst - Google Patents

Gegenstromschwimmsystem und schwimmbadanlage, die ein solches system umfasst Download PDF

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Publication number
EP3511056A1
EP3511056A1 EP18305024.4A EP18305024A EP3511056A1 EP 3511056 A1 EP3511056 A1 EP 3511056A1 EP 18305024 A EP18305024 A EP 18305024A EP 3511056 A1 EP3511056 A1 EP 3511056A1
Authority
EP
European Patent Office
Prior art keywords
propeller
motor
pool
swimming
propellers
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.)
Withdrawn
Application number
EP18305024.4A
Other languages
English (en)
French (fr)
Inventor
Emmanuel Miralles
Louis Daniel LONGEFAY
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.)
INDUSTRIELLE RADIO ELECTRIQUE ET MECANIQUE "SIREM" Ste
Original Assignee
INDUSTRIELLE RADIO ELECTRIQUE ET MECANIQUE "SIREM" Ste
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 INDUSTRIELLE RADIO ELECTRIQUE ET MECANIQUE "SIREM" Ste filed Critical INDUSTRIELLE RADIO ELECTRIQUE ET MECANIQUE "SIREM" Ste
Priority to EP18305024.4A priority Critical patent/EP3511056A1/de
Publication of EP3511056A1 publication Critical patent/EP3511056A1/de
Withdrawn legal-status Critical Current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
    • F04D13/12—Combinations of two or more pumps
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00—Training appliances or apparatus for special sports
    • A63B69/12—Arrangements in swimming pools for teaching swimming or for training
    • A63B69/125—Devices for generating a current of water in swimming pools
    • 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
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F04D29/049—Roller bearings
    • 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
    • F04D29/08—Sealings
    • F04D29/10—Shaft sealings
    • F04D29/106—Shaft sealings especially adapted for liquid 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
    • F04D3/00—Axial-flow pumps
    • F04D3/005—Axial-flow pumps with a conventional single stage rotor

Definitions

  • the present invention relates to a counter-current swimming system for swimming pools. As its name suggests, such a system can swim against a current, which is particularly interesting for owners of individual pools, the size of which does not allow to practice a sport swimming.
  • a pump system in which the pump draws water from the basin and discharges it directly through a nozzle equipped with an air intake.
  • the air / water mixture can be set for a more or less "bubbling" effect.
  • such a system is not suitable for sports swimming, because the flow of water generated is relatively low. Also, the flow formed is turbulent, which does not allow the user to breathe properly.
  • the invention also relates to a swimming pool installation according to claim 14.
  • This swimming pool installation 1 comprises a swimming pool 2 which, in the example, is a rectangular rectangular pool, and a maintenance shed 4 ("Pool house" in English) arranged near the pool. the pool 1.
  • a swimming pool 2 which, in the example, is a rectangular rectangular pool
  • a maintenance shed 4 ("Pool house" in English) arranged near the pool. the pool 1.
  • Pool 2 is a masonry concrete pool.
  • the pool 2 could also be a shell pool, whose shell is molded to the dimensions of the basin desired by the customer.
  • Pool 2 is typical of individual pools found in some homes. Thus, the dimensions of the pool 2 do not exceed 10 meters in length. Such dimensions do not allow to practice a sport swimming, insofar as it would involve too many back and forth against the edges of the pool. Thus, the swimming pool installation 1 comprises a counter-current swimming system 100.
  • this counter-current swimming system 100 is disposed within a reservation made in one of the walls of the pool.
  • This reservation is preferably located on one of the short sides of the pool in the case of a rectangular shaped pool.
  • the counter-current swimming system 100 is disposed behind a grid 6, which has openings 8 to allow the water of the basin to penetrate inside the reservation.
  • the counter-current swimming system 100 could also be fixed directly against one of the walls of the pool.
  • the counter-current swimming system 100 comprises an electric motor 102, two propellers 104 and two transmission belts 106, respectively a transmission belt for each propeller 104, for driving the two propellers 104 from the rotation of the engine 102.
  • any type of electric motor could equip the system 100.
  • the most suitable electric motors for this type of application are well known in the state of the art, that is why the characteristics of the electric motor 102 are not described further.
  • the belts 106 are notched belts, of polyurethane, with a specific surface treatment for operation in the aquatic environment.
  • the material constituting the belts 106 is resistant to hydrolysis.
  • the two propellers 104 are arranged on either side of the engine 102.
  • the motor 102 and the two propellers 104 are arranged side by side in a plane, which is substantially horizontal in configuration installed inside the pool .
  • the two propellers 104 each define a geometric axis X104, forming a central axis.
  • the spacing E1 between the two axes X104 is between 30 cm and 60 cm, preferably equal to 46 cm. It is therefore understood that the center distance E1 substantially corresponds to a shoulder width, which allows to form a swimming lane particularly suitable for the body of a swimmer.
  • Each transmission belt 106 is designed to transmit the rotation of a first pulley 108 rotatably connected to an output shaft 110 of the motor 102 to a second pulley 112 integral in rotation with a hub 114 of a propeller.
  • the hub 114 is the shaft on which are fixed the blades of the propeller.
  • the hubs 114 are each with a geometry of revolution about an axis X104.
  • keys are used to secure the pulleys 108 and 112 in rotation with their respective axes, that is to say with the axes 110 and 114 respectively.
  • any other means may alternatively be used to ensure these connections in rotation.
  • the first pulleys 108 have a diameter strictly smaller than that of the second pulleys 112.
  • the ratio between the diameter of the first pulleys 108 and that of the second pulleys 112 is between 1: 1 and 3 : 1, preferably 2: 1.
  • the electric motor 102 is housed inside a sealed casing 116.
  • the casing 116 is filled with nitrogen at a pressure of 1 bar.
  • the nitrogen filling makes it possible to test the tightness of the casing 116, the test consisting in putting the casing 116 in overpressure with respect to the external pressure and in checking the absence of gas leaks.
  • the system 100 further comprises a nozzle 118 for each propeller 104.
  • the function of the nozzles 118 is to guide the water flows formed by the propellers 104.
  • Each nozzle 118 is therefore arranged around a propeller 104.
  • Each nozzle 118 preferably comprises an upstream portion, at least partially frustoconical, and a cylindrical downstream portion 122.
  • the upstream and downstream directions must be interpreted with respect to the direction of flow of water through the propellers 104.
  • the upstream portion 120 comprises a frustoconical section which widens upstream. This section makes it possible to ensure better guidance of the flow of water upstream of the propellers 104, particularly with respect to a cylindrical shape.
  • each nozzle 118 and in particular the cylindrical downstream portion 122 of each nozzle 118, comprises internal partitions 124 disposed downstream of the propeller 104, the function of these internal partitions 124 being to attenuate the swirling character of the flow of water downstream of the propeller.
  • the current generated by the system 100 is substantially of the laminar type, which provides a certain swimming comfort due to the absence of eddies or splashes.
  • the partitions 124 are particularly visible at the figure 2 . They extend, perpendicularly two by two, in planes parallel to a central axis X104 of the propeller 104.
  • the system 100 comprises guide means 126 for guiding the output shaft 110 of the motor 102. Guiding means 126 are also provided for guiding the hub 114 of the rotating propellers 104.
  • the guiding means 126 which are better visible to the figures 5 and 6 , preferably comprise one or more bearings, in particular a bearing with two rows of balls. Of course, any other guiding means may be used (plain or hydrostatic bearing, roller bearing, etc.).
  • each seal 130 is a lip seal, comprising a flexible part, for example made of elastomer, comprising a lip 130.1 intended to rub against a rotating part, in particular against the output shaft 110 of the motor 102 or the hub 114 of a propeller 104.
  • a ring-shaped spring 130.2 maintains the lip 130.1 in contact with the outer surface of the rotating part to ensure a perfect seal.
  • the guide means 126 and the seals 130 are mounted inside a housing.
  • the housings arranged around the hubs 114 of the propellers 104 are referenced 132, while the box disposed around the drive shaft 110 is referenced 134.
  • the system 100 comprises a support plate 150 for the motor 102.
  • This sheet 150 here made of stainless steel, also serves as a support for the propellers 104.
  • the sheet 150 is fixed (for example with screws) to a stainless steel frame (not shown), which is itself attached to a wall of the pool, especially inside the reservation provided for this purpose. effect.
  • a clamping mechanism is used to fix the propellers 104 against the support plate 150.
  • this mechanism comprises a threaded sleeve 152, which is screwed inside a tapping 154 of the box 132 and comprises a flange 156 intended to bear against one face of the sheet 150.
  • the housing 132 is clamped against a face of the sheet 150, in particular against the face of the sheet 150 opposite to that turned to the flange 156 of the sleeve 152.
  • the sheet 150 is then pinched between the sleeve 152 and the housing 132.
  • the system 100 comprises means 136 for adjusting the centers E2 and E3 respectively corresponding to the distances between the motor axis X102 and the axes of the X104 propellers.
  • these adjustment means 136 include at least one, preferably two screw-nut systems, respectively a screw-nut system for each propeller 104.
  • the screw-nut system comprises a screw 138 which extends transversely to the axis X104 and which is received in a tapping 140 of the housing 132.
  • the screw 138 is immobile in translation, so that the rotation of the screw 138 in a direction or in the other causes the displacement of the housing 132 in a direction perpendicular to the axis X104, and thus a change in the spacing E2 or E3 between the hub 114 and the motor shaft 110. This setting allows to proceed tensioning the belts 106.
  • the adjustment of the tension of the two belts 106 is carried out as follows: The sleeve 152 is unscrewed to unclamp the casing 132 with respect to the motor support plate 150. The adjusting screw 138 is then rotated to move the casing sealing 132 on the opposite side to the drive shaft 110 (and then the belt 106 is turned on). Once the belt 106 is stretched, the housing 132 is clamped against the support plate 150 by screwing the sleeve 152 in the opposite direction to that described above.
  • the pool installation 1 further comprises a box 10 for supplying and driving the electric motor 102.
  • This box is here remote from the system 100 placed in the pool.
  • this box 10 is installed in the shed 4, inside which are installed all the equipment relating to the operation of the pool (pump, filter, robot cleaner, landing net, etc.).
  • the cabinet 10 could be directly integrated into the hull of the pool, especially in the basement.
  • An access hatch may be provided to allow to access the box 10.
  • all the equipment necessary for the operation of the pool can be integrated in the same place.
  • pool installation 1 does not necessarily include shed 4.
  • the box 10 advantageously comprises a voltage variator for modifying the supply voltage of the motor 102, and thus to change the flow rate of the current generated by the system, that is to say the force of the countercurrent.
  • the box 10 includes a voltage step-down device for transforming the mains voltage (typically of the order of 230 V) into a voltage compatible with an aquatic environment, which is normatively strictly less than 30V.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
EP18305024.4A 2018-01-12 2018-01-12 Gegenstromschwimmsystem und schwimmbadanlage, die ein solches system umfasst Withdrawn EP3511056A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18305024.4A EP3511056A1 (de) 2018-01-12 2018-01-12 Gegenstromschwimmsystem und schwimmbadanlage, die ein solches system umfasst

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18305024.4A EP3511056A1 (de) 2018-01-12 2018-01-12 Gegenstromschwimmsystem und schwimmbadanlage, die ein solches system umfasst

Publications (1)

Publication Number Publication Date
EP3511056A1 true EP3511056A1 (de) 2019-07-17

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EP18305024.4A Withdrawn EP3511056A1 (de) 2018-01-12 2018-01-12 Gegenstromschwimmsystem und schwimmbadanlage, die ein solches system umfasst

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE896725A (fr) * 1983-05-11 1983-09-01 Freschi Graziella Pompe submersible.
US20150074895A1 (en) * 2013-09-18 2015-03-19 Lmi Ip, Llc Laminar Flow Swim Spa
WO2015176694A1 (de) 2014-05-18 2015-11-26 Siegfried Binder Schwimmbecken mit einer integrierten gegenstromschwimmanlage
WO2016166331A1 (fr) * 2015-04-15 2016-10-20 Charles Baumberger Propulseur pour un bateau
US20170204628A1 (en) * 2016-01-18 2017-07-20 David R. Livingston, Jr. Swim spa

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE896725A (fr) * 1983-05-11 1983-09-01 Freschi Graziella Pompe submersible.
US20150074895A1 (en) * 2013-09-18 2015-03-19 Lmi Ip, Llc Laminar Flow Swim Spa
WO2015176694A1 (de) 2014-05-18 2015-11-26 Siegfried Binder Schwimmbecken mit einer integrierten gegenstromschwimmanlage
WO2016166331A1 (fr) * 2015-04-15 2016-10-20 Charles Baumberger Propulseur pour un bateau
US20170204628A1 (en) * 2016-01-18 2017-07-20 David R. Livingston, Jr. Swim spa

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