JP2002331296A - Bathtub water cleaning system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bathtub water cleaning device capable of performing the removal of bacteria from bath water and the deodorization and decoloration of bath water by stably mixing ozone gas with bath water without leaving the ozone gas in bath water in a bathtub and requiring a special power device. SOLUTION: In the bathtub water cleaning device 10 for absorbing the bath water 11a in the bathtub 11 by a circulating pump 12 and sending the same to a septic tank 13 to return the cleaned water to the bathtub 11, a gas-water mixer 14 for finely dividing the ozone gas to mix fine ozone gas bubbles with the bath water is arranged on the water absorbing side of the circulating pump 12 to send the water mixed with the ozone gas to the circulating pump 12 along with the bath water 11a from the bathtub 11 to clean the bath water 11a and an automatic air venting valve 24 for separating and discharging the excess ozone gas is further provided to the septic tank 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for purifying bath water for oxidizing and decomposing pollutants (organic substances, odors, coloring components) contained in bath water using ozone gas, and further removing bacteria.

[0002]

2. Description of the Related Art Generally, as a disinfecting device for bath water stored in a bathtub, a chlorine-based chemical such as sodium hypochlorite is widely injected, and in addition, ultraviolet irradiation, silver ion treatment and the like are performed. , Hot water treatment, ozone treatment and the like are performed. As a method of using ozone for disinfection of bath water, an open system in which ozone is directly injected into a bath, an ozone injection by using an injector (injection tube), a diffuser (a diffuser tube) or mechanical stirring, and a combination of an ozone reaction tank in a device. And closed systems.

[0003]

However, when a chlorine-based chemical such as sodium hypochlorite is injected alone for disinfection of the bath water, an organic substance such as ammonia in the bath water reacts with chlorine to form bound chlorine. The irritating odor due to the odor often becomes a problem. In the case of ultraviolet irradiation, there is a problem that efficiency is reduced due to contamination of the quartz glass protective tube. Further, in the silver ion treatment, there is a problem of coloring (silver chloride) of the bathtub wall surface and formation of a precipitate containing silver ions. Hot water treatment is not suitable for large capacity water treatment due to heat energy loss. In the case of ozone treatment, it is known that the effect of deodorizing and decoloring is excellent, but the conventional method of directly injecting ozone into the bathtub has a low efficiency of dissolving ozone into water, resulting in an ozone odor in the bathroom. There are cases. In the method of injecting ozone by an injector or a diffuser, a circulation pump (power) for operating the injector and a compressor (power) for operating the diffuser are required, and a special vortex turbine circulation pump is required for the mechanical stirring method. For example, the device itself is complicated and expensive. Further, there is a problem that the apparatus becomes large in a space such as an ozone reaction tank in order to maintain the residence time of the gas-liquid reaction of ozone. The present invention has been made in view of such circumstances, and does not leave ozone gas in the bath water in the bathtub, and further, does not require a special power unit, stabilizes the ozone gas, mixes the ozone gas into the bath water, An object of the present invention is to provide a bathtub water purification device capable of removing bacteria, deodorizing, and decolorizing.

[0004]

According to the present invention, there is provided a bathtub water purifying apparatus according to the present invention, in which bathwater in a bathtub is absorbed by a circulation pump, sent to a purification tank, purified, and returned to the bathtub. In the purification device of the above, an air-water mixer that mixes ozone gas into fine particles and mixes with bath water is disposed on the water absorption side of the circulation pump, and sends the water mixed with ozone gas to the circulation pump together with the bath water from the bathtub. Is purifying. The ozone gas which has been reduced in size by the steam-water mixer has an increased surface area and is easily dissolved in water. Then, the mixture is mechanically stirred again by the circulation pump, and the ozone gas is mixed in the bath water supplied to the circulation pump. However, since the ozone gas is small, cavitation hardly occurs, and the bath water can be smoothly fed by the circulation pump.

[0005] In the bathtub water purification apparatus according to the present invention, the water flowing into the steam-water mixer uses a part of the bathwater purified and discharged from the purification tank.
It is preferable that a flow control valve is provided in a water passage supplied from the steam mixer to the circulation pump to adjust the amount of ozone gas flowing into the circulation pump. Thus, the amount of ozone gas mixed into the bath water can be freely controlled.
Further, in the bathtub water purifying apparatus according to the present invention, it is preferable that the steam-water mixer sucks ozone gas using negative pressure generated at the time of passing water. This eliminates the need for an ozone gas pressurizing device. And in the bathtub water purification apparatus according to the present invention, the purification tank is provided with an automatic air vent valve for separating and discharging the excess ozone gas, and the ozone gas collected by the automatic air vent valve is detoxified using a catalyst, and the ozone gas is removed to the atmosphere. Release is preferred. As a result, it is possible to perform a process of removing the contained excess ozone gas. Furthermore, in the bathtub water purification device of the present invention, when the bathtub is located above the purification device and a pushing pressure is applied to the circulation pump, the bathtub is installed in a bathwater pipe on the suction side of the circulation pump. It is preferable that the steam-water mixer be operated stably by an adjusting valve.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. Here, FIG. 1 is a block diagram of a bathtub water purification apparatus according to one embodiment of the present invention.

A bath water purifying apparatus 10 according to an embodiment of the present invention includes a bath water (hot water, bath water) 11a in a bathtub 11.
And a purification tank 13 for purifying water sent from the circulation pump 12. The circulating pump 12 absorbs water in the bathtub 11 and also absorbs water containing ozone gas from an aspirator 14 which is an example of a steam-water mixer. Hereinafter, these will be described in detail. A return water pipe 16 into which water containing ozone gas from the aspirator 14 is connected is connected to a bath water pipe (suction pipe) 15 connecting the bathtub 11 and the circulation pump 12.
Is provided with a flow control valve 17 for adjusting the amount of ozone water (that is, substantially ozone gas) passing therethrough. The aspirator 14 is connected to a water guide pipe 19 branched from a water discharge pipe 18 for returning the water purified by the purification tank 13 to the bathtub 11, and purifies the water inside the aspirator 14 by the differential pressure generated by the circulation pump 12. A part of the discharged water is guided to the aspirator 14.

The aspirator 14 has a well-known structure, but includes a nozzle for jetting a part of water from the purification tank 13 by a differential pressure, a gas chamber provided around the nozzle, and a water jet from the nozzle. A gas mixed water outlet is provided for mixing and blowing out gas in the gas chamber, and one end on the upstream side of the return water pipe 16 is connected to the gas mixed water outlet. The downstream end of the ozone gas supply pipe 20 is connected to the gas chamber, and the gas generated from the ozonizer (ozone gas generator) 21 is sent to the gas chamber of the aspirator 14 via the solenoid valve 22 and the check valve 23 on the way. . Aspirator 14
Then, by blowing out water from the nozzle by the differential pressure generated by operating the circulation pump 12,
A negative pressure is generated due to the Venturi effect in a direction perpendicular to the direction in which the water spouts from the nozzles, so that the ozone gas in the gas chamber becomes small and enters the spouting water. Adjustment of the amount of water containing ozone gas is performed by a flow control valve 17 provided in the return water pipe 16 to make the amount of water circulating 10 to 30%. The ozone gas (5 to 10 vol% of the circulating pump circulating water amount) injected into the water by the aspirator 14 is mixed into the running water as fine bubbles (small particles) inside the aspirator 14. The running water containing the ozone gas is further mechanically stirred by the impeller of the circulation pump 12 and guided to the purification tank 13.

Water containing ozone or ozone gas from the circulation pump 12 is supplied to a water purification tank 13. Since the flow velocity is significantly reduced in the upper part of the purification tank 13, excess waste ozone gas (the ozone absorption efficiency is adjusted to 80 to 90%) is aggregated and separated by the automatic air vent valve 24 installed in the upper part of the purification tank 13. You. The separated waste ozone gas is guided to a catalyzer (catalyst processor) 25, reduced to oxygen molecules by an ozone decomposition catalyst 26 filled in the catalyzer 25, made harmless, and released to the atmosphere. The water purifying tank 13 is filled with a purifying material 13a such as barley stone, filtered sand and the like, and further removes dirt components, organic substances, and the like contained in the bath water 11a. When the bathtub 11 is installed on the upper floor of the bathtub water purification device 10, the circulation pump 12 is pushed in (positive pressure) to increase the suction resistance of the aspirator 14. By squeezing the amount of circulating water with the adjustment valve 27 installed in the water pipe 15,
The stable operation of the aspirator 14 can be performed. By the above operation, it is possible to efficiently and effectively save space and economically remove the bacteria of the bath water 11a in the closed system.

It should be noted that the present invention is not limited to the above-described embodiment, but includes a configuration that can be applied and implemented without changing the gist of the present invention. For example, a normal aspirator is used as the steam-water mixer, but other devices can be applied as long as ozone gas is involved in running water using the Venturi effect.

[0011]

As is clear from the above description, the bath tub water purifying device according to the first to fifth aspects has a steam-water mixer for mixing ozone gas into fine particles and mixing with water on the water suction side of the circulation pump. Since the water with the ozone gas mixed is sent to the circulation pump together with the water from the bathtub, the ozone gas can be mixed into the bathtub water by mixing the ozone gas with the injector system using the steam-water mixer and mechanically stirring with the circulation pump. Ozone can be more efficiently and stably mixed in bath water to remove bacteria, deodorize, and decolorize. Further, in the present apparatus, there is no need for an ozone reaction tank for gas-liquid reaction of ozone and gas-liquid separation, so that there is an effect that an efficient, space-saving and economical apparatus is possible.

In particular, in the bath water purifying apparatus according to the second aspect, the water flowing into the steam-water mixer uses a part of the water discharged from the purification tank. It can be safely driven without any risk of contamination. In addition, since a flow rate control valve is provided in the passage of water supplied to the circulation pump from the steam mixer to regulate the amount of ozone gas flowing into the circulation pump, the amount of ozone gas mixed can be appropriately adjusted. As described above, the ozone gas once melted in the circulating pump is vaporized and cavitation occurs, and no trouble such as the inability to operate the circulating pump does not occur. In the bath water purifying apparatus according to the third aspect, the steam-water mixer uses the negative pressure generated during the passage of water to suction ozone gas. Simplify. In the bathtub water purifying device according to claim 4, the purifying tank is provided with an automatic air vent valve for separating and discharging the surplus ozone gas, and the surplus ozone gas is collected. Further, since the bath water passes through the purifying tank, Water can be purified without leaving the smell of ozone. And
In the bathtub water purifying apparatus according to the fifth aspect, by opening and closing the adjusting valve, the pushing pressure of the circulation pump can be adjusted, and the stable operation of the steam mixer can be performed.

[Brief description of the drawings]

FIG. 1 is a block diagram of an apparatus for purifying bathtub water according to an embodiment of the present invention.

[Explanation of symbols]

10: Bathtub water purification device, 11: Bathtub, 11a: Bathwater,
12: circulation pump, 13: purification tank, 13a: purification material, 14: aspirator, 15: bath water pipe (suction pipe), 16: return water pipe, 17: flow control valve, 18: water discharge pipe, 19: water pipe, 20: Ozone gas supply pipe, 21:
Ozonizer (ozone gas generator), 22: solenoid valve, 2
3: Check valve, 24: Automatic air release valve, 25: Catalyzer, 26: Ozone decomposition catalyst, 27: Adjusting valve

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B01F 3/08 B01F 5/10 5/10 C02F 1/50 510A C02F 1/50 510 520L 520 531R 531 540A 540 550C 550 B01D 53/36 ZABF

Claims (5)

[Claims] 1. A bathtub water purifier that absorbs bathwater in a bathtub by a circulation pump, sends the water to a purification tank, purifies the water, and returns the bathwater to the bathtub. An apparatus for purifying bathtub water, wherein an air / water mixer for mixing with water is disposed, and the water mixed with ozone gas is sent to the circulation pump together with the bathwater from the bathtub to purify the bathtub water. 2. The bathtub water purifier according to claim 1, wherein the water flowing into the steam-water mixer uses a part of the bathwater purified and discharged from the purification tank, and further comprising the water. An apparatus for purifying bathtub water, wherein a flow control valve is provided in a water passage supplied from the water mixer to the circulation pump to adjust the amount of ozone gas flowing into the circulation pump. 3. The bath tub water purifier according to claim 1, wherein the steam-water mixer sucks ozone gas by using a negative pressure generated at the time of passing water. Purification device. 4. The bathtub water purifying apparatus according to claim 1, further comprising an automatic air vent valve for separating and discharging surplus ozone gas in the purifying tank, wherein the ozone gas collected by the automatic air vent valve is provided. Is a bath tub water purification apparatus characterized by detoxification treatment using a catalyst and releasing it to the atmosphere. 5. The bathtub water purifying apparatus according to claim 1, wherein the bathtub is located above the purifying apparatus, and when the circulating pump receives a pushing pressure, the circulation is performed. An apparatus for purifying bathtub water, wherein the steam-water mixer is operated stably by an adjusting valve installed in a bathwater pipe on a suction side of a pump.