KR100323337B1 - Purification equipment for swimming pools and baths - Google Patents

Abstract

The present invention relates to a device for purifying pool water, hot springs, and bath water in public baths.

An electrolytic passage (4) for disposing the negative electrode plate and the positive electrode plate facing each other and flowing the saline solution between them to produce sterilized water containing active oxygen, and the circulation passage (2) provided with the sterilized water outside the swimming pool and the bathtub. A stirring device 6 which is added to the circulating water and stirred, and a catalytic device 7 which decomposes by contacting the catalyst with sodium hypochlorite and sodium hypochlorite, which are by-products of the electrolytic reaction, and generates active oxygen. .

Description

Purifiers for pool water and bath water

The present invention relates to a device for purifying bath water, such as swimming pool water, hot springs, and public baths.

Pool water, hot springs, and public baths are used by circulating and circulating outside the pool and bathtub. In the middle of the circulation path, a filter for removing contaminants by filtering the circulation water and a sterilization device for adding and sterilizing the chlorine sterilizer are provided.

In addition, the concentration of the chlorine disinfectant in the pool water used in the swimming pool is, for example, defined by Japan Ministry of Health, Labor and Welfare to be 0.4 PPM or more as free chlorine before returning to the pool.

However, the conventional purifier has the following problem to be solved.

(1) When the pool water and the bath water are dirty, and the water-soluble organic matter increases, there is a problem in that sufficient sterilization effect cannot be obtained by conventional sterilization with a chlorine disinfectant.

② To increase the disinfecting effect, chlorine-based disinfectant is injected excessively to hurt the eyes and skin, or sweat, urine, immersion, other water-soluble organic substances and chlorine generated from the human body react with each other. There has been a problem of generating chlorine-based harmful substances such as chloramine and trihalomethane, which may cause or cause cancer.

An object of the present invention is to provide a purification device for swimming pool water and bath water which has a high purification ability and a low influence on the human body by solving the above problems.

In order to solve the above problems, the claim 1 of the present invention, the negative electrode plate and the positive electrode plate facing each other, the electrolytic passage (4) to make a sterilized water containing active oxygen by electrolyzing while flowing a saline solution therebetween,

A stirring device 6 for adding and sterilizing the sterilizing water to the circulation water of the circulation passage 2 installed outside the swimming pool and the bathtub;

Hypochlorite and sodium hypochlorite, which are by-products of the electrolytic reaction, were brought into contact with a catalyst to decompose to form a purification device for swimming pool water and bath water provided with a catalytic device 7 for generating active oxygen.

Claim 2 of the present invention, the electrolytic passage (4a) for adding the saline to the circulating water of the circulation path (2) provided outside the swimming pool and bath to electrolyze the circulation water to generate active oxygen,

A stirring device 6 for stirring the circulating water passing through the electrolytic passage 4a,

Hypochlorite and sodium hypochlorite, which are by-products of the electrolytic reaction, were contacted with a catalyst to decompose to form a purification apparatus for swimming pool water and bath water provided with a catalytic device 7 for generating active oxygen.

Nickel peroxide can be used in the catalyst of the catalyst device (7).

As a result of employing the above means, the present invention acts as follows.

When the electrolysis is performed while the saline solution is flowing between the negative electrode plate and the positive electrode plate of the electrolytic passage 4, the salt is electrolyzed and sterilized water containing active oxygen is obtained.

In the stirring apparatus 6, when the above sterilized water is mixed with the circulating water, the oxidation reaction is promoted by the active oxygen, and the water-soluble organic matter in the circulating water is decomposed into carbon dioxide, water and nitrogen gas. At this time, since active oxygen has a strong sterilizing power, bacteria and viruses in the circulating water are sterilized.

After stirring in the stirring apparatus 6, the circulating water and the catalyst are brought into contact with the catalytic apparatus 7 to decompose the by-product hypochlorous acid and sodium hypochlorite. As a result, residual chlorine which is harmful to the human body excessively present in the circulating water is reduced, and active oxygen generated by this decomposition is further subjected to oxidative decomposition and sterilization, and water-soluble organic substances remaining without being decomposed by the stirring device 6 are removed. Oxidative decomposition and at the same time sterilize the remaining bacteria and viruses not sterilized in the stirring device (6).

In this way, the two devices, the stirring device 6 and the catalytic device 7, oxidatively decompose and disinfect the water-soluble organic matter using active oxygen.

Instead of making sterilized water and adding it to the circulating water, a saline solution is added to the circulating water of the circulation passage 2, and a device for electrolyzing the circulating water and generating active oxygen by flowing between the negative electrode plate and the positive electrode plate of the electrolytic passage 4a. It may be.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the configuration of the present invention will be described with reference to the drawings.

1 is an explanatory view showing a first embodiment and a purification device for purifying swimming pool water.

"1" is a swimming pool, and the swimming pool water is circulated by an external circulation path (2).

“3” is a filter and is a device for removing relatively large garbage such as hairs contained in swimming pool water (circulated water) circulated by the circulation path 2.

"4" is an electrolytic passage, which is installed to face the negative plate and the positive plate in the waterway, and is a device to produce free radicals by flowing saline in between, and to make sterilized water.

"5" is a device for supplying a predetermined concentration of saline to the electrolytic passage (4).

"6" is a stirring device for mixing and stirring the sterilized water produced in the electrolytic passage 4 with the pool water circulated in the circulation passage 2, and at the same time promoting the oxidation reaction of the active oxygen generated in the electrolytic passage 4 above. Usually, a line mixer is used, but any mixture may be used as long as it is mixed and stirred to send the circulating water to the front, and may be substituted with a pump.

"7" is a catalyst device, and a catalyst layer is formed therein that decomposes hypochlorous acid and sodium hypochlorite by-products of the electrolytic reaction to generate active oxygen. Nickel dioxide and activated carbon can be used as a catalyst to be used.

The reaction of generating oxygen by decomposing hypochlorous acid and sodium hypochlorite is considered as follows.

^{HCIO → O + H + + Cl} -

NaClO → O + NaCl

Active oxygen has strong oxidizing power (4 times of hypochlorous acid) and decomposes organic substances dissolved in swimming pool water into carbon dioxide gas, water and nitrogen gas. In addition, active oxygen has strong sterilizing power, so it kills and kills bacteria and viruses in swimming pool water.

The organic matter, bacteria, and viruses remaining in the reaction in the stirring device 6 are oxidatively decomposed and sterilized by the active oxygen generated in the catalyst device 7 again.

Since the decomposition amount of hypochlorous acid and sodium hypochlorite in the catalyst device 7 is determined by the hourly amount of circulating water, it is circulated so as to have a desired residual chlorine concentration (for example, 0.4 PPM or more, which is a standard of Japan Ministry of Health, Labor and Welfare). It is desirable to adjust the quantity per hour of the number.

"8" is a filter, and is a device that filters fine particles such as insoluble impurities and dust generated by the electrolytic reaction.

"9" is a heating device that warms the circulated pool water.

The pool water passing through the heating device 9 passes through the circulation path 2 and returns to the pool 1 again.

"10" is also a pump.

In order to confirm the purifying effect of the purifying apparatus of the present invention, transparency, sterilizing power, and COD values were compared and compared with the conventional method of adding a chlorine disinfectant and the purifying apparatus of the present invention. The results are disclosed in Table 1 and Table 2, and high purification effect (transparency, bactericidal power, COD value) was recognized.

TABLE 1

Quantity 300㎥

Circulating water volume 75㎥ / H

Sample time 5pm

TABLE 2

Next, the apparatus was installed in a bath, and the number of Escherichia coli in the conventional method of adding a chlorine disinfectant and in the case of using the purifying apparatus of the present invention was examined to confirm the sterilizing effect of the bath water. The results are shown in Table 3, and a high bactericidal effect was recognized.

In addition, the number of Escherichia coli sprinkled on the agar medium with the bath water collected every hour, incubated for 20 hours, and then examined by a conventional method.

TABLE 3

(MPN / 100ml)

Total quantity 24㎥ / H

Circulating water volume 5㎥ / H

Water temperature 39 ℃

The above is the first embodiment, and the second embodiment will be described with reference to FIG.

The second embodiment is an example in which the invention of claim 2 is applied to bath water, and the first embodiment adds the sterilizing water produced in the electrolytic passage 4 to the pool water (circulating water) circulated in the circulation passage 2. On the other hand, the configuration differs in that saline is added to the bath water circulated in the circulation passage 2 to electrolyze the circulation water in the electrolytic passage 4a to directly generate active oxygen. Also, “1a” is the bathtub and “9a” is the heater. Since the rest of the configuration is exactly the same as in the first embodiment, detailed description thereof will be omitted. It is of course also possible to apply the device of this second embodiment to a swimming pool.

The purifier of the present invention adds the active oxygen generated by electrolysis of salt to the circulating water, and agitates with the stirring device 6 to oxidatively decompose the water-soluble organic matter in the circulating water, and then the catalyst device 7 Since electrolytic by-product hypochlorous acid and sodium hypochlorite are decomposed and oxidatively decomposed into active oxygen generated by decomposition, most water-soluble organic substances in the circulating water are decomposed into carbon dioxide, water, and nitrogen gas. Therefore, a high purification effect is obtained. In addition, active oxygen has a strong sterilizing power, and since the circulating water is sterilized by being exposed to active oxygen twice, most of the bacteria and viruses in the circulating water can be killed, and a high sterilizing effect is obtained.

In addition, since the produced hypochlorous acid and sodium hypochlorite are decomposed by the catalytic apparatus until the required concentration is reached, there is little effect on the human body.

In addition, when the purifying device of the present invention is used in a medicinal hot spring, it has the effect that the duration of the effect as a medicinal bath is lengthened without deteriorating the herbal components.

As described above, the purification device of the present invention has an excellent effect.

1 is an explanatory diagram showing a first embodiment of the purification apparatus of the present invention;

2 is an explanatory diagram showing a second embodiment of the purification apparatus of the present invention.

* Explanation of symbols for main parts of the drawings

2: circulation passage 4,4a: electrolytic passage

6: stirring device 7: catalytic device

Claims (3)

An electrolytic passage (4) provided with the negative electrode plate and the positive electrode plate facing each other, and electrolyzed with saline solution flowing therebetween to make sterilized water containing active oxygen; An agitator 6 for adding and sterilizing the sterilized water to the circulation water of the circulation path 2 provided outside the swimming pool and the bathtub; And a catalytic device (7) for generating active oxygen by decomposing by contacting the catalyst with hypochlorous acid and sodium hypochlorite as byproducts of the electrolytic reaction, thereby generating active oxygen. An electrolytic passage 4a which adds saline to the circulating water of the circulating path 2 provided outside the swimming pool and the bath to deliver the circulating water and generates active oxygen, A stirring device 6 for stirring the circulating water passing through the electrolytic passage 4a, A purifier for pool water and bath water, characterized in that a catalytic device (7) is provided for decomposing the hypochlorite and sodium hypochlorite by-produced by the electrolytic reaction in contact with a catalyst to generate active oxygen. The method according to claim 1 or 2, Purifier for pool water and bath water, characterized in that the catalyst of the catalytic device (7) is nickel peroxide.