EP0405469B1 - Gegenstrom-Schwimmbecken - Google Patents

Gegenstrom-Schwimmbecken Download PDF

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Publication number
EP0405469B1
EP0405469B1 EP90112165A EP90112165A EP0405469B1 EP 0405469 B1 EP0405469 B1 EP 0405469B1 EP 90112165 A EP90112165 A EP 90112165A EP 90112165 A EP90112165 A EP 90112165A EP 0405469 B1 EP0405469 B1 EP 0405469B1
Authority
EP
European Patent Office
Prior art keywords
channel
swimming
swimming pool
flow
counter
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.)
Expired - Lifetime
Application number
EP90112165A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0405469A1 (de
Inventor
Heinz Werner Dipl.-Ing. Blasczyk
Horst Meyer
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.)
HAMBURGER WASSERWERKE GmbH
Original Assignee
HAMBURGER WASSERWERKE GmbH
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 HAMBURGER WASSERWERKE GmbH filed Critical HAMBURGER WASSERWERKE GmbH
Priority to AT90112165T priority Critical patent/ATE84236T1/de
Publication of EP0405469A1 publication Critical patent/EP0405469A1/de
Application granted granted Critical
Publication of EP0405469B1 publication Critical patent/EP0405469B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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

Definitions

  • the invention relates to a countercurrent swimming pool, with a swimming channel to be flowed through, a return flow channel and with a pump device.
  • Countercurrent swimming pools of this type are known and are primarily used for training competitive swimmers, but are also used for sport-physiological research purposes and for investigations in the field of biomechanics.
  • the countercurrent swimming pool is based on the idea of training the swimming movements, ie to perfect the sequence of movements when swimming, the normal situation of the swimmer when crossing the water Reverse for better observability: While the water in a normal swimming pool stands still and the swimmer moves relative to the edge of the pool while swimming, in a countercurrent swimming pool the water is moving against the swimming direction and the swimmer keeps adjusting the flow rate of the water to his swimming speed - its position relative to the pool edge is constant. This results in the possibility of monitoring the movements of the swimmer in detail and / or of observing his performance by means of appropriate measurements. Furthermore, by means of countercurrent swimming pools of this type, it is possible to demand a constant performance from the swimmer in that his swimming speed can be adjusted via the flow velocity of the water.
  • the object of the present invention is to achieve a flow of the swimming channel which is as turbulence-free as possible in a countercurrent swimming pool of the type mentioned at the outset.
  • An advantage of the solution according to the invention is that relatively high flow velocities, namely over 2 m / sec, can be achieved in the swimming channel with optimal non-turbulent flow conditions at the same time.
  • the flow velocity in the floating channel can be influenced in an advantageous manner by the interaction of the hydrostatic pressure generated in the tower with the acceleration section downstream of the tower in the flow direction.
  • too much of the hydrostatic pressure in the tower contributes to the generation of the flow rate due to the high power required for the pump device large residual turbulence in the gush flow created under the influence of gravity.
  • the downstream acceleration section enables the water column in the tower to be raised as high as necessary and as low as possible by appropriate dimensioning and profiling of the taper.
  • the cross section of the acceleration section at its downstream end preferably corresponds to the cross section of the floating channel.
  • a further advantageous embodiment of the countercurrent swimming pool several pumping devices and / or several outlet openings are provided.
  • This development advantageously serves to adapt the performance of the pump device to the flow rate to be achieved in each case.
  • a further embodiment also serves this purpose, according to which it is provided that a riser pipe is arranged on each pump device on the outflow side, through which the outlet opening (s) of the pump device (s) are displaced upward.
  • a riser pipe is arranged on each pump device on the outflow side, through which the outlet opening (s) of the pump device (s) are displaced upward.
  • the tower is open at the top.
  • the pumping capacity of the pump device can be adapted to the respective requirements in a favorable manner in that the pump device can be driven by means of a motor which is infinitely variable in speed. This also makes it possible to start and end the swimming process slowly and with a smooth transition in order to avoid damage to the swimmer due to excessive increase or decrease in performance.
  • the infinitely variable output of the pump device makes it possible to set flow velocities in the swimming channel from 0 to 2.4 m / sec and beyond.
  • the usual training speeds are in a range of 0.4 to 2.4 m / sec.
  • baffles running parallel to the longitudinal axis of the swimming channel are arranged in the acceleration section, which substantially prevent a cross flow in the acceleration section.
  • the same purpose namely the optimization of a non-turbulent flow, serves a further advantageous embodiment of the invention, according to which floating, elastic and finger-like strips of material are arranged in the area of the transition from the acceleration section to the swimming channel on the water surface. Furthermore, a vertical flow straightener can be arranged in the region of this transition from the acceleration section to the swimming channel.
  • the return flow channel is arranged below the swimming channel.
  • the swimming channel has a substantially rectangular cross section and lateral baffles, and that the cross section of the downstream end of the acceleration section corresponds to the cross section of the swimming channel with the deduction of the lateral baffles.
  • the storage channels which are trapezoidally connected to the upper edge of the swimming channel, widen the swimming channel at a height of a few centimeters by means of outwardly projecting edge attachments. While the water level of the countercurrent swimming pool extends to the upper end of these cantilevered edge approaches before it is commissioned, it lowers during commissioning due to the increasing volume of the water column in the tower to the lower end of the cantilevered edge approaches, which then corresponds to the level of the actual upper edge corresponds to the swimming channel.
  • Fig. 1 shows a countercurrent swimming pool of conventional type with a flow channel 1 to flow through, a return flow channel 2 and with one Pump device 3, which flows through both the swimming channel 1 and the return flow channel 2 with the water contained therein.
  • the return flow channel 2 is arranged below the swimming channel, which is essentially rectangular in cross section, and is separated from it by a bottom 14.
  • the pump device 3 can be driven by means of a motor 10, which is connected to the pump device 3 via a drive shaft 15.
  • the speed of the motor 10 is infinitely variable, so that the flow speed in the swimming channel 1 can also be infinitely adjusted to the respective requirements.
  • a flow straightener 12 is arranged in the inlet area of the upwardly open swimming channel 1, by means of which the flow profile is standardized - but only in an inadequate manner.
  • a protective net 13 is provided at the outlet area of the swimming channel, which serves for the safety of the swimmer and prevents objects from being sucked into the return flow channel 2.
  • FIG. 2 to 4 an embodiment of a countercurrent swimming pool according to the invention is shown, with the known swimming pool of conventional type according to FIG. 1, the same components are provided with the same reference numerals.
  • the acceleration section 6 connects directly to an outlet opening 21 of the tower 5 and tapers in cross section in the direction of flow. This cross-sectional tapering takes place both in height by means of a wall 8 arranged on the top of the acceleration section 6 with an inclination falling in the direction of flow and in its width by parabolically curved inner side surfaces 7 (FIG. 3).
  • the outlet opening 4 of the pump device 3 is displaced upwards by a riser pipe 19.
  • the pump device 3 which can have, for example, a propeller (not shown here) and a drive motor (also not shown), conveys the water returned through the return flow channel 2 in a vertical direction via the riser pipe 4 in a substantially vertical direction into the tower 5, into which the water passes the outlet opening 4 of the pump device 3 arrives.
  • the outlet opening 4 is arranged below the lowest water level 9 of the swimming channel 1. In the operating state of the countercurrent swimming pool, a water column is generated in the tower 5 by the power of the pump device 3, the level of which is higher than the water level 9 of the swimming channel 1.
  • the resulting hydrostatic pressure of the water in the tower 5 leads to this flows in an essentially calm state as a surge flow under the effect of gravity through the outlet opening 21 into the acceleration section 6, where the already largely non-turbulent water flow experiences the necessary acceleration to a flow speed between 0.4 and 2.4 m / sec and above.
  • the parabolically curved inner side surfaces 7 of the acceleration section 6 ensure a smooth acceleration without renewed generation of turbulence.
  • the acceleration section 6 makes it possible to keep the initial flow velocity of the water generated essentially by the hydrostatic pressure of the water column located in the tower 5 relatively low, which has the advantage of almost negligible residual turbulence in the gush flow created under the effect of gravity (see Arrow 22). This advantage goes hand in hand with the possibility of adjusting the height of the water column generated in tower 5 to be kept as low as possible, as a result of which the occurrence of turbulence is reduced from the start due to the lower delivery capacity of the pump device 3.
  • both a vertical flow straightener 12 and elastic, finger-like material strips 17 floating on the water surface are arranged to further promote a non-turbulent flow.
  • the rear wall of the countercurrent swimming pool in the deflection area 20 from the swimming channel 1 to the return flow channel 2 is formed in an arc shape, thereby preventing non-participating amounts of water from collecting in the corners of the water circulation, which could be hygienically unsafe.
  • FIG. 3 shows a top view of the countercurrent swimming pool according to FIG. 2, partly in longitudinal section.
  • This illustration shows the parabolically curved inner side surfaces 7 of the acceleration section 6, by means of which the cross-sectional width of the acceleration section 6 tapers from the outlet opening 21 of the tower 5 in the flow direction to the region of the transition from the acceleration section 6 to the swimming channel 1.
  • the acceleration section 6 there are vertical baffles 16 which run in the direction of flow and which essentially prevent cross flow in the acceleration section 6 and thus further contribute to the non-turbulent character of the flow in the swimming channel 1.
  • two outlet openings 4 of a single or also of two separate pump devices 3 are arranged in the tower 5, which can optionally be displaced vertically upwards by riser pipes 19.
  • lateral reservoirs 18 in which an additional water volume is stored can be.
  • This additional volume of water in the reservoirs 18 prevents the water level in the swimming channel 1 from dropping below an acceptable, previously defined level when the countercurrent swimming pool is started by generating the water column in the tower 5.
  • a water column is formed in the tower 5 with a tower water level 11 lying above the water level 9 of the swimming channel 1, which acts on the acceleration path 6 by means of its hydrostatic pressure and thus gives the water an initial flow velocity.
  • the water level in the swimming channel 1 drops by the water volume, which corresponds to the water column in the tower 5.
  • the swimming channel 1 is designed in the region of its upper edge in the form of a bilateral retaining channel 18 which contains the volume 23 of the water column or - when the pump device 3 is switched off - records (Fig. 4).
  • FIG. 4 shows a cross section of the swimming channel 1 along the line A-A according to FIG. 3.
  • the construction of the lateral storage channels 18 is shown by way of example in this illustration.
  • the additional water volume 23, which is required to generate the water column in the tower 5 when the countercurrent swimming pool is started, is shown with double hatching in this illustration.
  • the two different water levels are marked by arrows on the right in the illustration, which are set in the floating channel 1 in the idle state or in the operating state of the pump device 3.
  • the hatched area thus represents a "storage chamber" for the additional water volume 23.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Special Spraying Apparatus (AREA)
  • External Artificial Organs (AREA)
EP90112165A 1989-06-27 1990-06-26 Gegenstrom-Schwimmbecken Expired - Lifetime EP0405469B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90112165T ATE84236T1 (de) 1989-06-27 1990-06-26 Gegenstrom-schwimmbecken.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3921015 1989-06-27
DE3921015A DE3921015C1 (enrdf_load_stackoverflow) 1989-06-27 1989-06-27

Publications (2)

Publication Number Publication Date
EP0405469A1 EP0405469A1 (de) 1991-01-02
EP0405469B1 true EP0405469B1 (de) 1993-01-07

Family

ID=6383674

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90112165A Expired - Lifetime EP0405469B1 (de) 1989-06-27 1990-06-26 Gegenstrom-Schwimmbecken

Country Status (3)

Country Link
EP (1) EP0405469B1 (enrdf_load_stackoverflow)
AT (1) ATE84236T1 (enrdf_load_stackoverflow)
DE (2) DE3921015C1 (enrdf_load_stackoverflow)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19515285C1 (de) * 1995-04-26 1996-10-02 Tech Zentrum Entwicklungs & Ha Strömungskanal mit Verteilungsgehäuse
DE19736079A1 (de) * 1997-08-20 1999-02-25 Uwe Unterwasser Electric Gmbh Einrichtung zur Erzeugung einer Wasserströmung in einem Schwimmbecken
JP3294548B2 (ja) * 1998-04-22 2002-06-24 理可工業有限会社 流水プール及びその送水方法
AT11124U1 (de) 2009-01-14 2010-05-15 Hof Georg Dipl Ing Schwimmbecken mit abdeckung, wobei die innerhalb der abdeckung befindliche luft konditionierbar ist
DE102009038451A1 (de) 2009-08-21 2011-03-03 Tz Technisches Zentrum Entwicklungs- & Handelsgesellschaft Mbh Transportabler Wasserumlaufkanal
CN105019691A (zh) * 2015-07-30 2015-11-04 谢志荣 泳池水循环装置及其游泳池
CN110032818B (zh) * 2019-04-19 2023-06-16 九易庄宸科技(集团)股份有限公司 一种无边界游泳池水跌流量计算方法
CN112922402B (zh) * 2021-03-26 2022-09-23 浙江麦知网络科技有限公司 一种应用于水底的新媒体播放柔性基板
US20250090924A1 (en) * 2022-03-14 2025-03-20 Bullfrog International, Lc Swim spa jet propulsion systems and methods

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB935054A (en) * 1962-04-27 1963-08-28 Flygts Pumpar Ab Apparatus for studying of swimmers
GB1090262A (en) * 1964-02-04 1967-11-08 Frederick Hugh Percy Buckner Improvements in and relating to apparatus for amusements and instructional purposes
DE2222594A1 (de) * 1972-05-09 1973-11-29 Karl Guenter Hoppe Schwimmbecken mit umlaufstroemung
WO1986002000A1 (en) * 1984-10-08 1986-04-10 Japan Aquatec Co., Ltd. Aesthetic and health-promoting therapy using water current and apparatus therefor

Also Published As

Publication number Publication date
DE59000716D1 (de) 1993-02-18
EP0405469A1 (de) 1991-01-02
DE3921015C1 (enrdf_load_stackoverflow) 1990-08-09
ATE84236T1 (de) 1993-01-15

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