JPH06106176A - Purification device of hot bathtub water - Google Patents

Abstract

PURPOSE:To easily perform ozone sterilization in low concn. in such a state that unreacted ozone is not scattered from a bathtub. CONSTITUTION:A high voltage discharge type ozone generator 12 sending ozonized air to the ozonized air suction device 5 of a hot bathtub water circulating passage 11 through an ozonized air supply pipe 15 having an ozonized air storage device 16 provided on the way thereof is arranged and an intermittent voltage supply means 18 supplying intermittent voltage to the ozone generator 12 and an intermittent voltage control means 19 controlling the voltage supply interval of the intermittent voltage supply means corresponding to the ozone concn. set by an ozone concn. setting means 20 are arranged to a control unit 17. By this constitution, the ozonizing degree of air can freely be controlled by controlling the supply interval of voltage to the ozone generator 12 and low concn. ozonized air can easily be formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathtub device, and more particularly to an ozone sterilizer for a bathtub cleaning device.

[0002]

2. Description of the Related Art Recently, a bathtub in which hot water in a bathtub is pumped up by a circulation pump to forcefully circulate the bathtub hot water circulation passage in which various cleaning treatment devices are provided and to eject the purified water into the bathtub again. A hot water purifier has been developed.

In a conventional bath water cleaning device, dirt components are removed by ion exchange, and at the same time activated stones such as barley stone that elutes and activates minerals, activated carbon that adsorbs and removes dirt, and ion exchange of dirt. At the same time, a filtration tank is provided in which a porous granular filter medium having various water treatment capacities such as zeolite that has been adsorbed and removed is filled individually or in combination to form a filtration layer. At the same time that the water is filtered, a treatment according to the water treatment capacity of the filter medium is performed to clean the hot water.

On the other hand, the recent apparatus is not only for removing the dirt from the hot water to clean it, but also for keeping the hot water at a proper temperature by a heater so that it can be bathed for 24 hours at any time. Has become.

In the case of such a device, it is necessary to provide a sterilizing device in order to prevent Escherichia coli and other bacteria from propagating in hot water, and as a simple sterilizing device, a high-pressure discharge type ozone generator, so-called ozonizer is used. It came to be deployed.

In the ozonizer, a high voltage is applied to the electrodes and silent discharge is performed to ozone the oxygen in the air introduced into the apparatus to generate ozone air, which is air containing a predetermined amount of ozone. Is inhaled in hot water for ozone sterilization.

[0007]

However, in the conventional ozone sterilization using the ozonizer, it was very difficult to completely sterilize the hot water without causing harm to the human body.

That is, when the hot water is sterilized with ozone, the unreacted ozone remaining in the hot water is emitted from the bathtub, so that the bather smells ozone and becomes uncomfortable. , Irritation of the skin and various ozone damage.

In order to prevent such a problem, conventionally, the ozone concentration of ozone air used for sterilization is made as low as possible, unreacted ozone is separated from hot water in the front of the bath, decomposed and exhausted, Alternatively, there has been considered a measure such that ozone sterilization is carried out during a time when there are no bathers, but each of them has its own problem and is not an effective measure.

When sterilization is carried out by lowering the ozone concentration of ozone air, naturally, the amount of unreacted ozone remaining in the hot water also decreases, so it is desirable to sterilize with ozone air of the minimum necessary concentration. .

For this reason, conventionally, a method of lowering the voltage applied to the ozonizer to lower the degree of ozonization of oxygen in the air to lower the concentration of ozone air has been considered.

However, a predetermined voltage is required to generate a discharge with the ozonizer, and if the voltage is low, the degree of ozone conversion of oxygen in the air is unstable and a large variation in concentration occurs. There was a limit to how low it could be, and it was not possible to generate low-concentration ozone air by controlling the voltage.

Since it is difficult to generate low-concentration ozone air, sterilization is performed with high-concentration ozone air, and unreacted ozone air is separated from the hot water in front of the bath and decomposed to be harmless. It was considered to be exhausted.

In order to separate the unreacted ozone air from the hot water, a gas-liquid separator and an ozone decomposer for decomposing the ozone in the separated air into harmless oxygen must be provided. .

However, when the gas-liquid separator and the ozone decomposing device are provided in this manner, the device is naturally complicated and expensive, and in particular, the ozone decomposing device separates ozone in the air separated from hot water and having humidity. Since it is difficult to completely disassemble, it is complicated and expensive, and it is difficult to deploy it in the bath water cleaning device.

As described above, since it is difficult to use low-concentration ozone air or separate unreacted ozone air,
It has also been considered that the operating time of the ozone sterilizer for one day is programmed and the sterilization is performed with high-concentration ozone air only in the time zone where there is no bather such as midnight.

In this case, since ozone sterilization is not carried out during the bathing time, the bather is hardly harmed by ozone, but bacteria such as Escherichia coli breed badly during the bathing time, and the latter Bathers will have to enter the dirty water, which is heavily bacterial-grown.

Further, it is difficult to completely sterilize bacteria that have proliferated badly during the bathing time only during the sterilization time, and the sterilization of hot water tends to be incomplete.

The present invention overcomes the above-mentioned drawbacks of the prior art and stably produces ozone air of a low concentration such that unreacted ozone, which is harmful to the human body, hardly diffuses from the bath. It is an object of the present invention to provide a simple and inexpensive apparatus for cleaning hot water in a bathtub, which can be sterilized by the above method to keep the hot water constantly clean.

[0020]

That is, according to the present invention, the hot water in the bathtub is pumped by a circulation pump, and the bathtub hot water circulation passage provided with various cleaning treatment equipment including ozone sterilization is forcibly circulated for cleaning. In a bath water purifying device for ejecting treated hot water again into a bath, the ozone generator for ozone sterilization uses an intermittent voltage supply means as a power source for intermittently supplying a voltage at predetermined intervals. Is a high-pressure discharge type ozone generator, which is a device for cleaning bathtub hot water, and an intermittent voltage supply means as a power source of the high-pressure discharge type ozone generator is an ozone concentration setting means and this ozone. The bathtub having the above-mentioned structure is controlled by the intermittent voltage control means that determines the voltage supply interval of the intermittent voltage supply means based on the ozone concentration set by the concentration setting means. Further, an ozone air storage device for temporarily storing ozone air is provided in the middle of an ozone air supply pipe connecting the ozone generation device and the ozone air suction device of the bath water circulation pipe. The bathtub cleaning device having the above-described configuration is characterized in that.

[0021]

The present invention is constructed as described above. First, since the ozone generator is a high-pressure discharge type ozone generator which uses the intermittent voltage supply means as a power source, ozone is not continuously generated, so that it is low. Concentrated ozonized air can be stably generated.

Further, since the ozone concentration setting means and the intermittent voltage control means for determining the intermittent interval of the intermittent voltage supply means based on the ozone concentration set by the ozone concentration setting means are provided, the high voltage is turned on. By changing the -OFF time ratio, that is, the duty ratio, the degree of ozonization in the air supplied per unit time can be changed, and low-concentration ozone air of any concentration can be accurately generated.

Furthermore, an ozone air storage device for temporarily storing the ozone air generated in the middle of the ozone air supply pipe connecting the ozone generator and the ozone air suction device of the bath water circulation pipe is provided. Since the power supply is intermittent, the power is turned on from the ozone generator.
In this state, the ozone air that is sent is mixed with the air that has been sent without being ozonized and has a uniform concentration when the power is off in the ozone storage tank.

Even if ozone is intermittently ozonized in this way, the ozone air is made to have a uniform concentration in the ozone air storage tank and then sucked into the hot water from the ozone air suction device in the bath water circulation path. The hot water can be sterilized evenly.

[0025]

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

FIG. 1 is a block diagram showing the basic construction of a bath water purifying apparatus according to the present invention. 1 is a bathtub and 2 is a bathtub 1.
A circulation pump for forcibly circulating the hot water in the interior, 3 heaters for heating the hot water to an appropriate temperature, 4 filled with barley stone, activated carbon, etc., and water treatment such as adsorption and activation while filtering dirt The filtration tank 5 for performing the operation is an ozone air inhaling device such as a bench-yurie type in which ozone-containing air, that is, ozone air is sucked into the hot water by increasing the flow velocity of the hot water to form a negative pressure.

Various types of cleaning equipment as described above are
The hot water pipe 6 for sucking hot water from the bathtub 1, the hot water pipe 7 for jetting the purified hot water into the bathtub 1 and the connecting pipes 8, 9 and 10 are connected in series to each other to clean the hot water bath. The bathtub hot water circulation path 11 is formed for the purpose.

Reference numeral 12 is a high-pressure discharge type ozone generator for soaking ozone in the air by applying a high voltage to generate a silent discharge between the electrodes, a so-called ozonizer, and 13 is an air supply pipe for supplying air for ozonization. Reference numeral 15 is an air supply device for sending the ozone air to the ozone generator through 14, and 15 is an ozone air supply pipe for sending the ozone air generated by the ozone generator to the ozone air suction device 5 of the bath water circulation circuit 11.

Reference numeral 16 is an ozone air storage device provided in the middle of the ozone air supply pipe, and the ozone air sent from the ozone generator 12 is not ozoneized because no voltage is applied to the ozone air storage device. Temporarily make the concentration uniform with the air sent by.

Reference numeral 17 is a control device for controlling the cleaning device as a whole, and this control device 17 includes an ozone generator 12
For controlling the ozone generator 12, an intermittent voltage supply means 18 for intermittently supplying a voltage to the ozone generator 12, an intermittent voltage control means 19 for controlling the intermittent voltage supply interval of the intermittent voltage supply means 18, and an ozone concentration are set. An ozone concentration setting means 20 is provided for this purpose.

Since various kinds of control means as described above are provided in the controller 17, the ozone generator 12 is
The intermittent voltage control means 19 controls the interval at which the intermittent voltage supply means 18 supplies the voltage based on the concentration set by the ozone concentration setting means 20, whereby the ozone generation amount per unit time becomes the set concentration. Is controlled as follows.

FIG. 2 shows the above-mentioned basic structure as a concrete structure. In the cleaning device, a high-pressure discharge type ozonizer 21 as an ozone generator 12 and an air as an air supply device 13 are provided. A pump 22, an air tank 23 as the ozone air storage device 16, a bench-yuri type aspirator 24 as the ozone air suction device 5, and the like are provided.

A controller 17 for controlling the cleaning device as a whole is provided with a voltage pulse generator 25 as an intermittent voltage supply means 18 and an ozone concentration setting key 30 as an ozone concentration setting means 20. As the intermittent voltage control means 19, a CPU 26 for performing arithmetic processing, a ROM 27 in which control data such as concentration data indicating a relationship between ozone concentration and an intermittent voltage supply interval is stored, and data for arithmetic processing is temporarily stored. A RAM 28, an off-timer 29 for setting the time, and the like are provided.

The operation of performing ozone sterilization under the control of the controller 17 having the above-described structure will be described below.

First, when a desired ozone concentration is set by the ozone concentration setting key 30, concentration data corresponding to the ozone concentration set from the ROM 27 is called out and the CPU 26 performs arithmetic processing, the voltage pulse generator 25 is turned on and the pulse voltage is set. The off-timer 29 is set to set the duty ratio, that is, the duty ratio of the pulse voltage generation time to the pulse voltage generation stop time.

As a result, the ozonizer 21 is controlled so that the pulse voltage is intermittently supplied from the voltage pulse generator 25 at the predetermined duty ratio, so that the air continuously sent from the air pump 22 is set. The ozone is intermittently ozonized to obtain a high ozone concentration.

In this case, the duty ratio can be freely and precisely changed, so that the amount of air ozonized per unit time can be freely and accurately adjusted, and even if the concentration is low, ozone of an arbitrary concentration can be obtained. Air can be easily generated.

The air intermittently ozonized by the ozonizer 21 is temporarily stored together with the non-ozonized air in the air tank 23 and becomes ozone air of uniform concentration, and then flows through the bath hot water circulation passage 11 by the aspirator 24. Inhaled in hot water for sterilization.

[0037]

The present invention has the above-described structure and operation, and since it can be sterilized by uniform ozone air having an arbitrary set concentration, it has a low concentration of ozone so that unreacted ozone does not scatter from the bath. It becomes easy to sterilize with air.

As a result, even if a special device such as a gas-liquid separator or an ozone decomposing device is not provided, even if sterilization is performed during the bathing time, the bather sniffs the ozone odor and feels uncomfortable or has a bad health effect. There is no need to worry about harm, and the sterilization can be done continuously for 24 hours to keep the hot water clean.

[Brief description of drawings]

[Figure 1] Basic block diagram,

FIG. 2 is a detailed block diagram.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bathtub 2 Circulation pump 5 Ozone air suction device 11 Bathtub hot water circulation path 12 Ozone generator 15 Ozone air supply pipe 16 Ozone air storage device 18 Intermittent voltage supply means 19 Intermittent voltage control means 20 Ozone concentration setting means

Claims (3)

[Claims] 1. The hot water in the bathtub is pumped up by a circulation pump, and the hot water that has been purified is jetted again into the bathtub by forcibly circulating the hot water circulation path in which the bath is equipped with various cleaning equipment including ozone sterilization. In the apparatus for cleaning bathtub hot water, the ozone generator for ozone sterilization is a high-pressure discharge ozone generator powered by an intermittent voltage supply means for intermittently supplying a voltage at a predetermined interval. Cleaner for bath water. 2. An intermittent voltage supply means as a power source of the high-pressure discharge type ozone generator, wherein the intermittent voltage supply means determines an intermittent voltage supply interval based on the ozone concentration setting means and the ozone concentration set by the ozone concentration setting means. The bathtub cleaning device according to claim 1, which is controlled by a voltage control means. 3. An ozone air storage device for temporarily storing generated ozone air is provided in the middle of an ozone air supply pipe connecting the ozone generation device and an ozone air suction device of a bath water circulation pipe. The cleaning device for bath water according to claim 1 or 2, characterized in that.