JPH0424373A - Circulation processing method for water in surface layer for pool - Google Patents

Abstract

PURPOSE:To circulate surface layer water so as to be purified by providing side grooves for each side wall upper section of a pool, making the first groove wall of each side groove, which is faced to the inside of the pool, lower in level than the water of the pool, and thereby making the second wall of each side groove higher in level than the water of the pool, so that surface layer water is led to the side grooves. CONSTITUTION:Side grooves 4 are provided for each side wall upper section of a pool water tank 1, and the first groove wall 41 of each side groove 4, which is faced to the inside of the pool water tank 1, is made lower than the second groove wall 42. In the second place, water is supplied to the pool water tank 1 in such a way that water is higher in level than the first groove wall 41, so that the surface layer water 3 of pool, water 2 rises above the first groove wall 41 so as to reach the second groove wall 42. Next, a plurality of suction pipes 5 is provided for the bottom section of each groove 4 so as to be connected to each water collecting pipe 6, and surface layer water 3 which is stored with each aforesaid water collecting pipe connected to each water storing pipe 8 by means of the lower piping 7 of each water collecting pipe 6, is directly led to a circulation pump 10, so that water is thereby circulated so as to be purified. By this constitution, water can thereby be circulated so as to be purified by simple equipment.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for circulating and purifying pool surface water using relatively simple equipment.

[Prior Art] In general, pool water circulation purification involves two systems: a main circulation purification system that circulates and purifies the water near the bottom of the pool, and a surface water circulation purification system that circulates and purifies the surface water of the pool. This is done using a circulating purification system.

Among these methods, conventional methods for circulating and purifying pool surface water include a method of collecting and purifying overflow water, and a method of installing surface water treatment equipment called a "surface skimmer." .

The former method of collecting and purifying overflow water involves constantly overflowing by replenishing the water level in the pool so that it is slightly higher than the overflow water level, and storing the overflow water in a large-capacity open-top water storage tank (surge tank). In this method, after the water is allowed to flow down, the stored water is circulated and purified using a circulation pump that is linked to a controller that includes a water level detector that is installed in the water tank.

The latter method using a surface skimmer is a method in which a "surface skimmer device" is installed at the upper part of the pool side wall, with one device per 45 rrf' of pool surface area as a guideline.

This surface skimmer device extracts only surface water containing a large amount of contaminants floating on the ice surface through a wave-dissipating shield plate, and introduces it into the circulation system through a coarse foreign matter prevention mechanism.

[Problems to be Solved by the Invention] However, the above-mentioned conventional surface water circulation method has the following drawbacks.

First, the disadvantages of the method of circulating overflow water purification are:
The installation area of the open-top water storage tank is large, making it impossible to accommodate it in the building of the pool facility, or causing operational inconvenience when operating other circulating purification devices. Another drawback in design and construction is that the flow rate into the water tank is determined by the difference between the old pipe diameter and the water level, so the diameter of the piping to the water tank must be larger than usual due to constant overflow. It is.

On the other hand, the disadvantage of the latter method of installing a surface gap is that it requires welding of the protrusion mechanism and communication pipe, installation of a wave-dissipating shield plate, coarse foreign object prevention mechanism, and perforated plate for maintenance when designing and constructing the pool tank body. Another point is that it requires complicated and technically difficult design and construction, such as connecting a communication pipe to a surface gap. In addition, there is also the drawback that the unit price is naturally higher than that of the overflow arrangement.

The present invention was made against the above-mentioned background, and it is possible to collect the surface water of a pool using relatively simple equipment without installing a large surge tank or a complicated surface skimmer device. The purpose of the present invention is to provide a method for circulating and purifying surface water of a swimming pool.

[Means for Solving the Problems] The present invention solves the above problems by having the following configuration.

(1) A gutter is provided at the top of the side wall of the pool, and the first gutter wall of this gutter facing into the pool is made slightly lower than the water level of the pool,
On the other hand, the second gutter wall facing the first gutter wall is made higher than the pool water level to guide the surface water of the pool to this gutter, making it possible to ensure an appropriate circulation amount of surface water along this gutter. A water collection pipe having a nominal diameter is provided, and this water collection pipe and the side gutter are connected by a plurality of pipes so that the surface water led to the side gutter is introduced into the water collection pipe, and further, a water collection pipe is provided along the water collection pipe. A water storage pipe having a diameter larger than the nominal diameter of the water collection pipe is provided, and the surface water led to the water collection pipe is introduced into the water storage pipe, and then the surface water stored in the water storage pipe is directly circulated. The structure is characterized by circulating purification by leading it to the pump.

(2) In configuration 1, the nominal diameter of the water collection pipe is 0.2 per 1 y of pool surface area.
A configuration characterized in that the diameter of the water storage pipe is equal to or more than rr+m, and the diameter of the water storage pipe is three times or more the nominal diameter of the water collection pipe.

[Function] In the above configuration (1), the surface water led to the side gutter is directly led to the circulation pump through the water collection pipe and the water storage pipe,
Circulatory purification takes place.

In this case, when the pool water surface is calm without ripples, the water level of the pool is slightly higher than the first groove wall.

Therefore, when the circulation pump is driven, the water level in the gutter is lowered by the suction water flow forced by the circulation pump,
Pool surface water flows out towards the gutter. When a small number of pool users quietly enter the pool, the pool water level rises.
Practical problems do not occur as long as the above-mentioned outflow rate of surface water is reduced. On the other hand, waves are generated on the surface of the pool water when a person performs a large jump such as diving, when a large number of swimmers jump at once, or when various movements associated with swimming are performed underwater. Naturally, these waves have peaks and valleys in terms of water level, but the water levels at the peaks and valleys are not the same in all parts of the gutter.
In some parts, the water in the pool and the water in the side gutter are temporarily separated by the first gutter wall, and in other parts, the water level in the pool corresponding to the mountain reaches the second gutter wall and is reflected. At this time, the first gutter wall acts as a wave dissipator, and at the same time, after drawing in the surface water of the pool, it acts as a partition between the water in the pool tank and the water in the side gutter, thereby removing the surface water containing a lot of pollutants. It acts to efficiently guide water to the water collection pipe. Further, although the water level in the side gutter is not constant due to the above-mentioned phenomenon, the side gutter is connected to the water collection pipe by a plurality of pipes, and therefore, the water level is averaged through each pipe and led to the water collection pipe. In addition, waves of large amplitude are generated on the pool surface to the extent that the bottom of the gutter is exposed, and when the water is discharged through the piping to the collection pipe, the vortex generated by this discharge causes - Even if air bubbles enter the water collection pipe, since multiple pipes are connected to the water collection pipe, the water collection pipe plays the role of a communicating pipe for these pipes, and the suction pipe of the plurality of pipes is Since the air bubbles escape through the pipes where the flow rate is slow, the air bubbles do not flow into the water storage pipe.

Furthermore, since the water storage pipe has a larger diameter than the water collection pipe, the capacity of the piping from the pool to the circulation pump has sufficient buffer capacity to absorb fluctuations in surface water introduced from the side ditch. It turns out. Therefore, it is possible to prevent air bubbles from being sucked into the circulation pump, and at the same time, even if surface water that exceeds the discharge capacity of the circulation pump occasionally flows into the water collection pipe from the side gutter, it can be absorbed by the capacity of the water storage pipe, etc.
Since the water level in the gutter does not rise excessively, the wave-dissipating effect is not diminished. As a result, the surface water of the pool can be continuously guided to a purification device such as a filter without providing an open-top water storage tank, and can be purified and returned to the pool tank.

In addition, according to configuration (2), by setting the nominal diameter of the water collection pipe to a diameter equivalent to 0.2 mm or more per 1 rrf' of pool surface area, an appropriate circulation amount of surface water in a standard pool can be achieved. In addition, since the water storage pipe has a diameter more than three times the diameter of the water collection pipe, in the end,
The capacity of the piping from the pool to the circulation pump will have a sufficient buffer capacity approximately 10 times or more that of the water collection pipe. Therefore, even if the capacity of the circulation pump is slightly different from the optimum value, it is possible to prevent air bubbles from being sucked in, and at the same time, the wave-dissipating effect is not diminished, making it possible to carry out ordinary circulation purification in an extremely stable manner.

[Example] FIG. 1 is an explanatory diagram of a method for circulating pool surface water according to an example of the present invention. Hereinafter, a method for circulating pool surface water according to an embodiment of the present invention will be described with reference to FIG.

In the figure, numeral 1 is a pool water tank, numeral 2 is pool water, numeral 3 is pool surface water, numeral 4 is a side gutter, numeral 41 is a first gutter wall,
42 is the second groove wall, 5 is the piping, 6 is the water collection pipe, 7 is the piping, 8 is the water storage pipe, 9 is the flow control valve, 10 is the circulation pump, 11 is the filter, code 12
is the main circulation device.

A side gutter 4 is provided in the upper part of the side wall of the pool tank 1. A first groove wall 41 of the side wall 4 facing into the pool tank 1 is formed lower than a second groove wall 42 facing the first groove wall 41.

Fresh water is supplied into the pool tank 1 by a fresh water supply system (not shown) so that the water level is slightly higher than the first groove wall 41 when the pool tank 1 is in a stationary state. Therefore, the surface water 3 near the surface of the pool water 2 crosses the first groove wall 41 and reaches the second groove wall 42 .

Further, the bottom of the side gutter 4 is connected to a water collection pipe 6 buried in the lower part of the side gutter 4 along the side gutter 4 through a plurality of suction pipes 5 provided at predetermined intervals.

The nominal diameter of the water collection pipe 6 is set to a diameter corresponding to 0.2 mm or more per 1 m 2 of pool surface area.

This makes it possible to secure the amount of water collected to properly purify the surface water of a standard pool.

Furthermore, this water collection pipe 6 is connected to a water storage pipe 8 buried below the water collection pipe 6 along the water collection pipe 6 through a plurality of pipes 7 provided at predetermined intervals.

The diameter of this water storage pipe 8 is set to be three times or more the nominal diameter of the water collection pipe 6. Therefore, the total water storage capacity of the water collection pipe 6 and the water storage pipe 8 is approximately ten times or more that of the water collection pipe 6.

In addition, the surface water in the water storage pipe 8 is transferred to the pipe 13 and the flow rate control valve 9.
, the water is returned to the pool tank 1 through the piping 14, the circulation pump 10, the piping 15, the filter 11, and the piping 16, and circulation purification is performed. In this case, the flow control valve 9 sets the circulating amount of surface water to an appropriate value.

Note that a main circulation purification system including the main circulation purification device 12 and the like may be provided separately from this surface water circulation purification system.

In the above configuration, first, the water level is adjusted by a fresh water supply system (not shown) so that the pool surface water 3 passes over the first groove wall 41 of the side gutter 4 and reaches the second groove wall 42. Also,
The initial opening degree of the flow rate control valve 9 is set to about two-thirds, and the opening degree is adjusted as appropriate depending on the condition of the circulation process.

When the circulation pump 10 is driven, the pool surface water 3 flows into the side gutter 4.
and is discharged from the pool tank 1. At this time,
Since the suction speed is faster than the inflow speed from the pool tank 1 into the side gutter 4, the water level in the side gutter 4 is temporarily lowered. In addition, when the circulation pump 10 is driven, the pool water tank 1
The water level deviation between the water level inside and the water level inside the side gutter 4 may be considered to be inversely proportional to the thickness of the pool surface water 3 that exceeds the first gutter wall 4.

According to this embodiment, waves are generated when there are large plants when the circulation pump 10 is driven, but the solids floating in the pool surface water 3 quickly flow into the water collection pipe 6 by the circulation flow flowing toward the side gutter 4, and further The water is introduced into the filter 11 while slowly coagulating inside the water storage pipe 8. Since all of the circulation paths according to this embodiment are always filled with water, temporary changes in water level that are experienced in the example of installing an open-top water storage tank can be suppressed. Furthermore, even if we assume a temporary rise in the water level in a pool where 150 people can enter at the same time, the rise will be about 25 mm, so this is a more efficient treatment method than the surface skimmer, which is a well-known partial surface water treatment method. It is possible. In addition,
The installation area of the equipment for circulation purification is significantly reduced by the above configuration, and compared to the area of the machine room designed assuming the installation of an open-top water tank, the area of the machine room in this example is less than half. It can be reduced. Furthermore, since it does not have a structure that protrudes to the outside of the pool tank like in the case of surface clearance installation, there is no equipment that will get in the way of the lower part of the gutter 4 and the parts located outside the pool tank 1. can be used effectively. For example, it is possible to arrange the necessary piping in a straight line, and it is also possible to create a pipe pit under the poolside deck, which allows for flexible construction work.

This example was carried out in a commercial pool, and the transparency and potassium permanganate consumption, which are indicators of the contamination of the water, were measured and compared with other conventional pools of the same size. No significant difference was observed in the results, indicating that significant effects were achieved in shortening the construction period and reducing equipment investment and operating costs.

[Effects of the Invention] As detailed above, the present invention provides a gutter at the upper part of the side wall of the pool, and makes the first gutter wall of the gutter facing the inside of the pool slightly lower than the water level of the pool, while
The second gutter wall facing the first gutter wall is made higher than the pool water level to guide the surface water of the pool to this gutter, and it is possible to ensure an appropriate amount of circulating and purifying surface water along this gutter. A water collection pipe having a nominal diameter is provided, and the water collection pipe and the side gutter are connected by a plurality of pipes so that the surface water led to the side gutter is introduced into the water collection pipe, and further, along this water collection pipe, A water storage pipe having a larger diameter than the water collection pipe is provided, and the surface water led to the water collection pipe is introduced into the water storage pipe, and then the surface water stored in this water storage pipe is directly led to the circulation pump. By implementing cyclic purification in this way, it is now possible to circulate and purify the surface water of a pool using relatively simple equipment, without having to install a large surge tank or a complicated surface skimmer device. , it brings great technical and economic advantages to everything from the architectural design of pool facilities to the operation of circulation purification equipment, and it also has the excellent effect of eliminating the risk of running dry even when the circulation pump is operated all the time. This is a method for circulating pool surface water.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a method for circulating pool surface water according to an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Pool water tank, 2... Pool water, 3... Pool surface water, 4... Side gutter, 41... First gutter wall, 42
...Second groove wall, 5...Piping, 6...Water collection pipe, 7
... Piping, 8... Water storage pipe, 9... Flow rate control valve, 1
0... Circulation pump, 11... Filter machine, 12... Main circulation device.

Claims (2)

[Claims] (1) A gutter is provided at the top of the side wall of the pool, and the first gutter wall of this gutter facing into the pool is made slightly lower than the water level of the pool,
On the other hand, the second gutter wall facing the first gutter wall is made higher than the pool water level to guide the surface water of the pool to this gutter, making it possible to ensure an appropriate circulation amount of surface water along this gutter. A water collection pipe having a nominal diameter is provided, and the water collection pipe and the side gutter are connected by a plurality of pipes so that the surface water led to the side gutter is introduced into the water collection pipe. Then, a water storage pipe having a diameter larger than the nominal diameter of the water collection pipe is provided, and the surface water led to the water collection pipe is introduced into the water storage pipe, and then the surface water stored in the water storage pipe is circulated by a pump. A method for circulating pool surface water, which is characterized by circulating and purifying surface water in a manner that leads to (2) In the pool surface water circulation treatment method according to claim 1, the nominal diameter of the water collection pipe is set to 0 per 1 m^2 of the pool surface area.
．． A method for circulating surface water in a pool, characterized in that the water storage pipe has a diameter equivalent to 2 mm or more, and the diameter of the water storage pipe is three times or more the nominal diameter of the water collection pipe.