JPH05104083A - Hot-water circulating device for bath - Google Patents

Abstract

PURPOSE:To provide the subject device made perfectly harmless to a human body by decomposing ozone gas in hot water and sterilizing E. coil therein. CONSTITUTION:When the hot water of a bathtab 1 is guided to a filter tank 6 by a pump 2, ozone gas is blown and injected in hot water from an ozone generator 3 and the resulting gas-liquid mixture is filtered and sterilized by a silver chloride plate 5 and a filter material. The emitted hot water is injected in a gas-liquid separator 7 and the sterilization of E. coli and the separation of ozone are performed by a silver chloride plate 5' and an ozone decomposing catalyst 8 and the treated hot water is returned to the bathtab.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circulating hot water bath for filtration, deodorization and sterilization of a bath system, which allows bath water to be circulated for 24 hours at any time without turbidity or odor of hot water by circulating hot water in the bathtub. It is a thing.

[0002]

2. Description of the Related Art In recent years, interest in bath life has increased as one of the desires for a healthy and comfortable life, and a circulating water heater has been installed at the time of new construction or extension / renovation of a house, or a portable type bathtub has been used. The number of cases where it is installed in is increasing. Circulating water heaters can be bathed 24 hours a day without the need to change hot water, and since the generation of hot water stains can be suppressed and the bathtub can be released from cleaning, the demand is expanding, and each company is entering the market.

The hot water purification of the conventional bath circulating water heater will be described below with reference to the block diagram shown in FIG.

In FIG. 2, 9 is a bath, 10 is a filter for filtering large dust, 11 is a pump for circulating hot water, 12 is a filter tank for filtering fine dust, and for sterilizing action. is there.

The circulation operation of the hot water will be described below.
Hot water in the bathtub passes through the filter 11 by the filter 11, large dust such as hair is captured at this stage, and then passes through the filter tank 12 to purify the hot water. Although various methods are used by various companies as a means for this purification, adsorption of bacteria by zeolite or activated carbon in the filtration tank 12, filtration by glass beads, or purification by ozone or chlorine is available.

However, in the sterilization method using ozone or chlorine, it is feared that ozone and chlorine remain in warm water, which may adversely affect the human body. Further, adsorption to zeolite or activated carbon and filtration using glass beads or the like require a long operating time. After that, turbidity and odor of warm water are generated due to the accumulation of organic substances and the propagation of anaerobic bacteria.

As measures against this, there are a method of suppressing the concentration of ozone water in warm water to the extent that it does not harm the human body, and a method of performing sterilization treatment using silver.

[0008]

However, in the sterilization by ozone of the circulating water heater for bath currently on the market,
The ozone gas concentration is high in order to enhance the sterilization effect, and it is difficult to completely decompose ozone at the stage of exhausting the ozone gas to the outside and to completely sterilize Escherichia coli in the bath.

The present invention has been made in view of the above problems, and decomposes ozone gas by separating hot water and exhaust ozone gas, and completely sterilizes Escherichia coli, and is a bath water heater that is completely harmless to the human body. The purpose is to provide.

[0010]

In order to solve such a conventional problem, the present invention provides an ozone generator for generating ozone gas, a silver chloride plate for sterilizing hot water from a bath, and a filter equipped with a filter medium. A pump for guiding the tank, the filtration tank into which the hot water obtained by blowing the ozone gas into the hot water from the pump is mixed, the silver chloride plate for sterilization, and an ozone decomposing catalyst are attached, and And a gas-liquid separator into which hot water from a filtration tank is injected, the hot water from the bath is sterilized by filtration, and the hot water purified after decomposing ozone gas is circulated back to the bath. .

[0011]

According to the present invention, even if the circulating water heater for a bath is operated for a long period of time, the sterilization of Escherichia coli in the warm water is completely performed by the silver ion, and the turbidity of the warm water and the generation of odor are caused by ozone. In addition, exhaust ozone gas is completely decomposed and is completely harmless to the human body.

[0012]

Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of a circulating water heater for baths according to an embodiment of the present invention. In the figure, 1 is a bath, 2 is a pump, 3 is an ozone generator, 4 is glass beads, and 5 '
Is a silver chloride plate, 7 is a gas-liquid separator, and 8 is an ozone decomposition catalyst.

The operation of circulating hot water will be described. Hot water from the bath 1 is sterilized by a silver chloride plate 5 and glass beads (200 μm,
(1.5 kg) 4 When introducing with a pump 2 to a filtration tank 6 equipped with a filter medium, the hot water from the pump 2 is blown with ozone gas from an ozone generator 3 to mix gas and liquid, and the filtration tank 6 is subjected to gas and liquid. The mixed hot water is poured and is sterilized by filtration in the filtration tank 6 with the silver chloride plate 5 for sterilization and the filter medium.

Further, this filtered hot water that has been sterilized is injected into the gas-liquid separation device 7, where the sterilization silver chloride plate 5'and the ozone decomposition catalyst 8 sterilize E. coli remaining in the hot water and ozone. After being separated and bacteria such as Escherichia coli are further sterilized, purified hot water is returned and circulated to the bath 1.

Table 1 shows the results of a hot water circulation test conducted with the bath circulating water heater of the present invention and the bath circulating water heater as a comparative example.
Shown in. In this test, a device similar to that of the example of the present invention was used as a comparative example. However, the comparative example is filtration tank 6
The silver chloride plates 5 and 5'of the gas-liquid separator 7 were not attached.

[0017]

[Table 1]

Here, in the hot water circulation test, five people bathed each day and the degree of odor and turbidity of hot water every 24 hours, and the number of E. coli in the hot water (E. coli test; E. coli medium) were set to 200.
I checked the time.

From Table 1, no odor or turbidity was observed in any of the examples and comparative examples. However, in the comparative example, E. coli was 24
It begins to develop from time, and after 192 hours, 6 (colony / ml)
Was confirmed, whereas E. coli was not confirmed in the examples.

[0020]

As described above, the bath circulation water heater of the present invention includes a pump for guiding hot water from the bath to the filtration tank.
A filter tank for filtering hot water, a gas-liquid separator for separating waste ozone gas and warm water, and a silver chloride plate in the filter tank and gas-liquid separator for sterilizing E. coli in hot water,
In the gas-liquid separator, no Escherichia coli was observed in the warm water due to the silver chloride plate and the ozone gas decomposition catalyst, and the ozone gas was decomposed and harmless to the human body. You can bathe in a clean bath where no turbidity is observed.

[Brief description of drawings]

FIG. 1 is a block diagram of a circulating water heater for a bath according to an embodiment of the present invention.

FIG. 2 is a block diagram of a conventional bath circulation water heater.

[Explanation of symbols]

1, 9 ... Bathtub, 2 ... Pump, 3 ... Ozone generator,
4 ... Glass beads, 5, 5 '... silver chloride plate, 6 ... filtration tank, 7 ... gas-liquid separation device, 8 ... ozone decomposition catalyst.

Continuation of front page (51) Int.Cl. ⁵ Identification number Office reference number FI technical display location C02F 1/50 C 7158-4D 101 7158-4D F24H 9/00 W 9033-3L

Claims (1)

[Claims] 1. An ozone generator for generating ozone gas, a pump for introducing hot water from a bath to a filtration tank equipped with a silver chloride plate for sterilization and a filter medium, and the ozone gas blown to hot water output from the pump. The filtration tank into which the hot water mixed with waste gas-liquid is injected, a silver chloride plate for sterilization, and an ozone decomposition catalyst are provided, and the hot-water separator from which the hot water from the filtration tank is injected is provided, and A circulating water heater for baths, characterized in that hot water from a bath is sterilized by filtration, ozone gas is decomposed, and then purified hot water is returned and circulated to the bath.