SK323392A3 - Swimming-pool for swimming against the stream - Google Patents

Abstract

The invention pertains to a swimming pool for counterflow swimming, containing a double-bodied base (1) which in the forward section of the swimming pool leads into the curved or spiral front end (2) and which forms the hydrodynamic channel (3) for unidirectional water flow (14), the water-flow generation unit (4) with turbulence source (11) being situated in the conical inflow shaft in the rear section of the swimming pool. The water flow (14) discharges into the outlet (13), which extends to the full width of the swimming pool, producing an even, non-turbulent current across the full width of the swimming pool.

Description

Technical field

The invention relates to the construction of an upstream swimming pool.

The state of the art

At present, a system is known which is based on an upstream swimming device. In principle, it is the use of a powerful circulator, which allows even a relatively small tank to create a stream of water against which we can swim for a longer time at a more relaxed pace. We can also crawl closer to the inlet nozzle. (publication: Ján Struška et al., Staviamé rodinné domy, pp. 120, r. v, 1989). The water is sucked through a powerful circulation pump through one opening, and is then blown back into the pool below the surface. State-of-the-art equipment (according to Krtilland's company literature) does not require holes in the wall of the pool, but simply attaches to the straight edge of the pool. An important part of this device is the outlet nozzle, which must ensure the speed and amount of water flowing. The entire development of the upstream system is based on the improvement of a circulator-based device.

The disadvantage of this system is that the swimmer must be directed to the outlet stream of the nozzle water and maintain this direction during swimming. The center of the stream is 0.15 m below the surface. The swimmer is in a countercurrent where the flow is turbulent. For this reason, it must maintain a certain distance from the outlet nozzle, where the level is no longer so stormy. This is also related to the requirements for the length of the pool. Modern equipment is relatively demanding in production and power input is also not negligible.

SUMMARY OF THE INVENTION

These drawbacks are solved by the upstream swimming pool according to the invention, which is based on the fact that the bottom is double-widened in the direction of flow, which in the front part of the pool passes into a curved or spiral front, creating a hydrodynamic channel with low hydraulic resistance for directed water flow.

The water outlet device is located in a conical shaft at the rear of the pool, between the bulkhead and the rear face, either vertically or horizontally. This device preferably does not have to be based on the principle of a circulation pump, i.e. the effect of suction and displacement of water. However, the design of the pool does not preclude the use of the device on this principle as well. Preferably, the device for flowing water in the pool comprises a propeller as a source of turbulence.

To regulate the flow parameters, a regulating flap is provided on the arc or spiral front of the pool and the extendable part in the partition separating the float from the shaft, where the flow conducting device is located. In addition, conventional regulation can be made by varying the number of revolutions of the flow generating device.

BRIEF DESCRIPTION OF THE DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a cross-section of a pool, FIG. 2 is a side view and FIG. 3 is a plan view.

DETAILED DESCRIPTION OF THE INVENTION.

The upstream swimming pool consists of a conical inlet shaft 5, at the rear of the pool between the rear face 7 and the partition 6, where a water-jetting device 4 is arranged which is mounted vertically or horizontally. The source of the swirling 11 is located in the mouth of the shaft 5 in the chamber 12, which continuously passes into the double bottom 1 in the direction of flow widening, which in front of the pool passes into the arch or spiral face 2, creating a hydrodynamic channel 3 with small hydraulic resistance. The arched or helical front face 2 comprises a regulating flap 8. A conical shaft 5 ensures the inlet of water to the source of the vortex 11

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* * .J · ί «·,« Λ :. And the amount of flowing water can be controlled by the releasable control portion 9 of the partition 6. The bottom of the pool can be fitted with a support plate '' 107 '' .......................

As a prototype, an upstream swimming pool was built which contained a propeller d 180 mm as a source of swirling 11, with a power input of 1.1 kW at 600 rpm, channel width 3.50 to 60 mm, optimum length of 3000 up to 4000 mm. The desired effect was achieved.

Upon actuation of the flow conducting device 5, the water in the channel 3 flows and the flow of the required speed and quantity results in the orifice 13 of the front arch face 2 of the pool. The orifice 13 extends over the entire width of the pool, providing a uniform, vortex-free flow throughout the width of the pool. The current against which the swimmer floats and the suction effect behind the swimmer is achieved. The stabilization of the conditions achieves the effect of the floating swimmer against the flow of the river.

Industrial usability

The solution according to the invention can be used for commercial purposes, in the preparation of swimmers and, last but not least, in health care for rehabilitation swimming.

Claims (3)

PATENT CLAIMS 1. An upstream swimming pool consisting of a bottom, sidewalls, end walls and a flow conducting device, characterized in that the bottom (1) is formed as a double widening in the flow direction, which in front of the pool passes into a curved or spiral of the front face (2), thereby forming a hydrodynamic channel (3) for directed water flow (14), wherein the water flow outlet device (4) is located in a conical headbox (5) at the rear of the pool between the partition (6) and the rear the face (7) either vertically or horizontally, and the swirl source (11) is mounted in the mouth of the shaft (5) in the chamber (12). 2. The upstream swimming pool according to claim 1, characterized in that the bow or spiral front face. (2) has a regulating flap (8), the partition (6) comprises an extendable regulating part (9) and the bottom (1) comprises an adjustable support plate (10). The upstream swimming pool according to claim 1 and 2, characterized in that the device (4) for conducting the water flow in the pool preferably comprises a propeller as the source of the swirl (11).