JPH02102790A - Apparatus for treating pool water with ozone - Google Patents

Abstract

PURPOSE:To prevent sticking of slime to a wall surface of an apparatus for treating pool water with ozone by interposing an ozone reaction/decomposition tank packed with active carbon to a midway of a circulating pipe. CONSTITUTION:While a pool is used for service, ozone is mixed with circulated water through a first ozone feeding pipe 4a by the adjustment of a flow rate adjusting device 9, and an opearation for mixing ozone from a second ozone feeding pipe 4b is stopped. In this stage, pool water is fed to an ozone reaction/ decomposition tank 5 with a circulating pump 3 through a water-intake pipe R1 and a filter tank 2, and the ozone mixed thereinto from the first ozone feeding pipe 4a contacts with the circulated water and sterilizes the circulated water in the ozone reaction/decomposition tank 5, and decomposes org. matters by oxydation. While the pool is not in use, ozone is mixed in the circulated water through the second ozone feeding pipe 4b by the adjustment of the flow rate adjusting device 9, and mixing of ozone from the first ozone feeding pipe 4a is stopped or reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION r Industrial Application Field 1 The present invention relates to an ozone treatment device for swimming pool water.

BACKGROUND ART Conventionally, an apparatus as shown in FIG. 2 has been proposed as an apparatus for sterilizing pool water, decomposing organic matter, etc. by bringing it into contact with ozone.

That is, in this conventional device, a water intake port 1a of a pool 1 and an inlet port 2a of a filter tank 2 arranged outside the pool 1 are connected by a water intake pipe R1, and a circulation pump 3 is interposed in the middle of the water intake pipe R1. urge One end of the conduit R3 connected to the discharge port 2b of the filter tank 2 is connected to the other end of the conduit R3.
0 inlet 10a.

The ozone aeration tank 10 is configured to retain a predetermined amount of circulating water in the tank, and houses an aeration plate 11 at the bottom for aerating the ozone supplied from the ozonizer 4. Board 1! The more diffused ozone passes through the circulating water remaining in the tank in the form of bubbles, so that the circulating water and ozone come into contact with each other. Note that the exhaust ozone that has come into contact with the circulating water is exhausted into the atmosphere through the ozone decomposition chamber 12 from an exhaust port 10c arranged at the upper part of the ozone aeration tank 10.

Further, the outlet tab of the ozone aeration tank 10 is connected to the inflow 013a of the ozone decomposition $1113 through a conduit R4. The ozone decomposition tank 13 is filled with activated carbon C, and the circulating water that has come into contact with ozone and dissolved the ozone in the ozone aeration tank 10 comes into contact with the activated fAC and decomposes the dissolved ozone.

Furthermore, one end of the circulation pipe R2 is connected to the outlet 13b of the ozone decomposition tank 13, and the other end of this circulation pipe R2 is connected to the circulating water inlet 1b of the pool 1. In addition,
A heater device 7 is provided in the middle of this circulation pipe R2 as necessary.
and chlorine injection device 8 are connected.

rPrior art J However, although the above-mentioned conventional device can satisfactorily sterilize circulating water, even if it continues to operate constantly, a layer of bacteria called slime, organic matter, and inorganic matter decomposed by bacteria adheres to the wall of the pool 1. It is known that this has the disadvantage that it cannot be prevented.

Purpose 1 In view of the above drawbacks, the present invention provides an ozone treatment device for pool water that can sterilize not only circulating water but also stagnant water that remains in the pool at appropriate times to prevent slime from adhering to the pool wall surface. It is intended to.

Means for Solving Problems 1 In accordance with the above-mentioned object, the configuration of the present invention, the gist of which is defined in the above-mentioned claims, is to solve the above-mentioned problems by connecting the water intake port 1a of the pool 1 and the It is connected to the inlet 2a of the filter tank 2 arranged outside by an intake pipe R1, and a circulation pump 3 is interposed in the middle of the intake pipe R1, and a first ozone is supplied via a flow rate regulator 9 in the middle. The discharge port 2b of the filter tank 2 and the circulating water inlet 1b of the pool 1 are connected by a circulation pipe R2, and this circulation pipe R
2, an ozone reaction/ozone decomposition tank 5 filled with activated carbon C is interposed, and a flow rate regulator 9 is provided in the circulation pipe R2 on the downstream side of the ozone reaction/ozone decomposition tank 5. This is a technical measure in which the second ozone supply pipe 4b is connected through the second ozone supply pipe 4b.

``Effect 1'' During the use of the pool, the ozone treatment device for pool water according to the invention mixes ozone into the circulating water mainly from the first ozone supply pipe 4a by adjusting the flow rate regulator 9, and supplies the second ozone. Ozone mixing from pipe 4b should be stopped or its amount should be reduced.In other words, it is not very desirable for high concentrations of ozone to mix into the pool water being used, and previous research results show that ozone reaction and ozone decomposition 4 It is said that it is desirable that the ozone concentration in the reflux 2 discharged from the !
1 and the filter 412 to the ozone reaction/ozone decomposition tank 5. At this time, the ozone mixed in from the first ozone supply pipe 4a comes into contact with the circulating water and is sent to the ozone reaction/ozone decomposition tank 5. The circulating water is sterilized and mixed organic matter is oxidized and decomposed. This sterilization and decomposition of organic matter is due to the oxidizing power of ozone, but it is also said that the nascent oxygen generated by ozone decomposition is responsible for much of the oxidation.

The circulating water discharged from this ozone reaction/ozone decomposition tank 5 is sterilized, organic matter decomposed, and dissolved ozone decomposed to become fresh water and returned to the pool 1 through the circulation pipe R2.

In addition, when the pool is closed at night, etc., ozone is mainly mixed into the circulating water from the second ozone supply pipe 4b by adjusting the flow rate regulator 9, and ozone mixing from the first ozone supply pipe 4a is stopped or stopped. Reduce the amount. Then, the ozone concentration of the return water flowing back through the circulation pipe R2 or the pool water remaining in the pool 1 increases, and this serves to prevent slime from adhering to the pool wall surface.

Embodiment j Next, an embodiment of the present invention will be described below with reference to the accompanying drawings.

In the figure, 1 is a pool, and 2 is a filter tank placed outside the pool 1. Conventionally known filters can be used as these. The water intake port 1a of the pool 1 and the inlet port 2a of the filter tank 2 arranged outside the pool 1 are connected by a water intake pipe R1 as in the conventional case.

In the present invention, a circulation pump 3 is interposed in the middle of the water intake pipe R1, and a first ozone supply pipe 4a is connected to the water intake pipe R1 via a flow rate regulator 9 in the middle. This first ozone supply pipe 4a has one end connected to the discharge port of a conventionally known ozonizer 4 and the other end directly connected to the water intake pipe R1, or has its tip disposed inside the water intake pipe R1, not shown. It is formed by connecting nozzles or air diffusers, and is designed to prevent ozone from being mixed into the circulating water flowing through the water intake pipe R1 as air bubbles. It is desirable that this ozone be mixed into the circulating water as fine bubbles, and for this purpose it is advantageous to use small-diameter nozzles and air diffusers. The connection position of the first ozone supply pipe 4a may be any suitable position of the water intake pipe R1, but if it is connected to the inlet side of the circulation pump 3, the circulation pump 3 acts as a stirrer and can stir and atomize ozone bubbles. This is desirable, but if it is too close to the supernatant side of the circulation pump 3, the ozone that has been mixed in as fine bubbles will gather and form large bubbles that will flow into the circulation pump 3, which may impede the transfer function of the pump 3. Therefore, it is more desirable to place the ozone supply pipe 4a immediately upstream of the circulation pump 3, including the inside of the casing of the circulation pump 3.As shown by the broken line in FIG. Of course, there is no problem in connecting it to the pickled side.

Then, the discharge port 2b of the filter tank 2 and the pool 1
is connected to the circulating water inlet 1b by a circulating pipe R2, and an ozone reaction/ozone decomposition tank 5 filled with activated carbon C is interposed in the middle of the circulating pipe R2. This activated carbon C is
Fine organic matter, including bacteria, which has adsorption ability and is not collected by the filter tank 2, is adsorbed by the activated carbon. *Ta,
It is known that activated carbon C also has the function of decomposing ozone as a catalyst when it comes into contact with ozone, and the nascent oxygen generated by ozone decomposition has strong oxidizing power, and this oxygen It oxidizes and decomposes organic matter adsorbed on the water.

Furthermore, a second ozone supply pipe 4b is connected to the circulation pipe R2 on the downstream side of the ozone reaction/ozone decomposition tank 5 via a flow rate regulator 9 in the middle. In the illustrated example, the flow rate regulator 9 of the second ozone supply pipe 4b uses a flow rate control valve that can separately adjust the flow rate together with the flow rate regulator 9 of the second ozone supply pipe 4a. On the other hand, both flow rate regulators 9 and 9 are configured with one three-way switching mechanism so that the discharge port of the ozonizer 4 is connected to the first ozone supply f.
4a and the second ozone supply pipe 4b, and furthermore, these flow rate regulators may be automatically adjusted over time according to an appropriately set program. Of course it's good.

In addition, in the figure, 6 is a compressor, 7 is a heater device, and 8
1 shows a chlorine injection device, and the heater device 7 and chlorine injection device 8 are arranged in the middle of the circulation pipe R2 as necessary. Further, Nl and N2 indicate ozone concentration meters, and the ozone concentration meter N1 is placed in the water intake pipe R1, and the ozone concentration meter N2 is placed in the circulation pipe R2 downstream of the ozone reaction/ozone decomposition 115. When the measured value of the concentration meter N2 falls below a predetermined value or the difference with the measured value of the ozone concentration meter N1 exceeds a certain level, it is determined that the filter tank 2 is clogged and it is time to backwash or replace the filter. It is used as an output signal for displaying, controlling to increase the output of the ozonizer 4, or as a control number 18 for driving the flow rate regulator 9.9.

rEffect of the Invention 1 Since the present invention is as described above, the flow rate regulator 9 mainly sterilizes the circulating water with ozone when the pool is used, and the return water to the pool undergoes an ozone reaction and ozone decomposition (5) to reduce the ozone concentration. It is possible to provide a pool water ozone treatment device that increases the ozone concentration in the return flow to the pool when the pool is out of use and prevents slime from accumulating on the wall of the pool 1. be.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the pool water ozone treatment apparatus of the present invention, and FIG. 2 is a front view of a conventional example. 1-Pool 1a-Water intake 2-Filter tank 2a-Inlet 3-Circulation pump 4a-
First ozone supply pipe 4b to second ozone supply pipe 4b
5 ~ Ozone reaction and ozone decomposition tank R1 ~ Water intake pipe R2 ~ Circulation pipe

Claims (1)

[Scope of Claims] A water intake port 1a of a pool 1 and an inlet port 2a of a filter tank 2 arranged outside the pool 1 are connected by a water intake pipe R1, and a circulation pump 3 is interposed in the middle of the water intake pipe R1. At the same time, the first ozone supply pipe 4a is connected through the flow rate regulator 9 in the middle, and the discharge port 2b of the filter tank 2 and the circulating water inlet 1b of the pool 1 are connected by the circulation pipe R2. , this circulation pipe R
2, an ozone reaction/ozone decomposition tank 5 filled with activated carbon C is interposed, and a flow rate regulator 9 is interposed in the circulation pipe R2 on the downstream side of the ozone reaction/ozone decomposition tank 5. This ozone treatment device for pool water is formed by connecting a second ozone supply pipe 4b.