JPH10259954A - Bathtub device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to clean scales deposited on a water circuit of a bathtub water or various kinds of bacteria in the water. SOLUTION: In the cleaning of a water circuit of bathtub water, a means which heats a water circuit which comprises an adapter 3, a return pipe 4, a circulating pump 5 and a feed pipe 8 to a setting temperature for every definite time and drains water in automatic mode and passes water including residual chorine contained water for a definite tine or by a definite amount while the water circuit is left over in a natural environment. Accordingly, this construction makes it possible to sterilize scales or various kinds of bacteria deposited on the water circuit by heating and clean and residual chlorine sterilization cleaning, and keep clean the water circuit all the time and hold cleanses even when a plurality of people take a bath continuously and the bathtub water is used continuously.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathtub device that circulates bathtub water in a bathtub, purifies and sterilizes the water circuit and bathtub water, and keeps the bathtub clean.

[0002]

2. Description of the Related Art Conventionally, purification of a water circuit of bathtub water in a bathtub has been as shown in FIG.

A bathtub water 1 is provided with an adapter 3 attached to a bathtub 2.
Return pipe 5, circulation pump 6, filter material 7 connected to the return part of
Is passed through a filtration tank 8, and a water circuit composed of an outgoing pipe 9 connected to an outgoing part of the adapter 3 is circulated by a circulation pump 6 to purify dirt in the bathtub water 1 by the filtration tank 8. Bathtub water 1
In the water circuit, a heating source 9 for heating the bathtub water 1 is provided between the circulation pump 6 and the filtration tank 8. The hot water to the bathtub 2 is supplied from a water supply unit provided in a part of the water circuit through a return pipe 5 and an outgoing pipe 9 of the water circuit via a heating source 11 of the water circuit.

[0004]

However, in the conventional bathtub apparatus, first, large dirt, hair, and the like, which are dirt components of the bathtub water, are simply purified by a primary filter provided on an adapter, and the relatively clean water passes through the primary filter. Large dirt particles (approximately 10 microns or more) can be filtered and purified in the filter tank of the water circuit, but fine particles (about 1 micron) generated by multiple people taking a bath continuously or using bath water continuously. The water circuit becomes dirty and unclean due to insufficient filtration and purification of the dirt components by various bacteria (general bacteria, Escherichia coli, etc.) in the filtration tank. More importantly, the connection of the water circuit with the circulation pump, filtration tank, outgoing pipe, return pipe and adapter has many irregularities, the flow of water is poor (large turbulence), and the nutrient source of various bacteria It is an environment where debris easily accumulates and various bacteria easily proliferate. In particular, since the dirt components of the bathtub water circulate as they are up to the inlet of the filtration tank, they are more likely to become unclean.To keep them clean and clean, the bathtub water is constantly replaced and fresh water is passed frequently. Alternatively, the cleaning agent has to be forcibly cleaned by putting the cleaning agent into the bathtub water and washing it with flowing water, which has been a problem of a very uneconomical and labor-intensive operation.

[0005]

According to the present invention, there is provided a bathtub apparatus comprising: a circulating pump provided in a part of a water circuit for circulating bathtub water; and a filter for filtering bathtub water. A tub, an adapter that connects the bathtub and the water circuit, and a water supply unit that supplies residual chlorine-containing water at regular intervals to the water circuit,
Automatic heating means for automatically heating the bathtub water to the set temperature at regular intervals during natural standing, and drainage means for discharging bathtub water from the water circuit for a fixed time after heating to the set temperature by the automatic heating means The number of times of heating to the set temperature is counted, and when the count reaches the set number of times, drainage of the bathtub water by the drainage unit and water supply to the water circuit by the water supply unit are performed.

According to the above invention, the bathtub water is heated to a set temperature (approximately 30 to 40 ° C.) at regular time intervals, so that the filtration bath is passed from the outlet of the heating source, which is a part of the bathtub water water circuit, to the filter bath. The pipe and the passage to the outlet of the adapter attached to the bathtub are subjected to high-temperature sterilization and purification with high-temperature water, and then subjected to high-temperature sterilization and purification with the high-temperature water. By reducing the residual chlorine-containing water to the bathtub water reduced by the drainage to approximately the same amount as before drainage, the dirt components such as dirt deposited in the water circuit by the water-passing power are washed and purified, By the synergistic purification effect of disinfecting and purifying various components such as bacteria in the water circuit by the residual chlorine containing water, a plurality of persons can continuously take a bath or keep a bathtub by keeping the water circuit always clean and clean. You can continue to use. In addition, the synergistic purification effect can exhibit a double purification effect that enables simultaneous purification of bathtub water.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a circulating pump provided in a part of a water circuit for circulating bath water, a filter for filtering the bath water, an adapter for connecting the filtration tank, the bath and the water circuit, and a water circuit. A water supply unit for supplying the residual chlorine-containing water at regular intervals is provided, and an automatic heating means for automatically heating the bathtub water to a preset temperature at regular intervals during natural standing, and after heating to a set temperature by the automatic heating means, Drain means for draining bathtub water from the water circuit for a certain period of time, counting the number of times of heating to the set temperature, and when the count reaches the set number of times, drainage of bathtub water by the drainage means, by a water supply unit. It supplies water to the water circuit.

[0008] The bathtub water is heated at a high temperature by absorbing the heat of the heating source and exchanging heat at regular intervals during natural standing without heating the bathtub water by the intention of the bather, and attached to the bathtub from the outlet of the heating source. Hot water flows to the outlet of the adapter and the entire bath water is heated until it reaches the set temperature. At this time, various bacteria in the water circuit passage through which the high temperature water flows are sterilized and purified by high temperature. Next, after heating to a set temperature, a means for draining bath water from the water circuit passage for a fixed time or a fixed amount is used to drain and purify dirt and various bacteria which are dirt components of the bath water drain passage. After draining the bathtub water, at least a certain amount of time or a certain amount of water from the water circuit is supplied to the bathtub water from a water supply unit provided in a part of the water circuit, and at least the drained bathtub water is substantially drained. By supplying up to the original bathtub water volume, and further cleaning and purifying dirt components such as dirt deposited in the water circuit by water flow power, and sterilizing and purifying various dirt components such as bacteria by residual chlorine containing residual chlorine-containing water. The synergistic purification effect of the high temperature sterilization purification, the cleaning purification, and the residual chlorine sterilization purification of the water circuit can keep the water circuit clean at all times. Also, by keeping the water circuit clean and clean at all times, a plurality of people can take a continuous bath or use the bathtub water continuously. The synergistic purifying effect can exhibit a double purifying effect which enables purifying bath water together.

First, high-temperature water is flowed into the water circuit, and the dirt and the like deposited on the water circuit are reduced in adhesion to the high-temperature water so that dirt components such as the dirt are easily peeled off. I do. In this way, the number of times high-temperature water is circulated is counted, and the count is set, that is, the drainage unit and the water supply unit are used in combination at a plurality of times (2 to 4 times) to reduce the amount of bathtub water drainage. Thus, resources can be saved, and dirt components such as dirt deposited in the water circuit can be further cleaned and purified, and the purification can be more effectively performed in combination with the sterilization and purification effect.

A switching valve is provided for switching the direction of water supply from the water supply section to the water circuit, and when the residual chlorine-containing water is supplied from the water supply section to the water circuit, the switching valve is switched to a return side or an outgoing side. .

Since the residual chlorine-containing water is supplied only to the return side or the outgoing side, the amount of water supplied to the return side and the outgoing side is increased as compared with the case where water is supplied simultaneously to the return side and the outgoing side, thereby improving the cleaning ability. be able to.

Further, after the residual chlorine-containing water supplied from the water supply section reaches the circulation adapter via the water circuit, the water supply is stopped, and the residual chlorine-containing water is retained in the water circuit for a certain time.

[0013] After the residual chlorine-containing water is passed through at least the entire volume of the bathtub water circuit, the residual chlorine-containing water is retained in the water circuit for a certain period of time, thereby purifying the water with a greater temporal sterilization effect. be able to.

Further, a heating means for heating the residual chlorine-containing water is provided. Further, after the residual chlorine-containing water heated by the heating means is supplied to the water circuit, the residual chlorine-containing water not heated by the heating means is supplied to the water circuit.

[0015] Then, as the passage temperature of the residual chlorine-containing water,
By passing cold water after hot water, the cold water flow delays the decomposition of residual chlorine and maintains the residual chlorine concentration to increase the sterilization effect, and the hot water flow accumulates on the uneven parts of the water circuit. It is possible to reduce the adhesion of the scale, wash or reduce the scale accumulation, and increase the purification ability.

The temperature of the residual chlorine-containing water heated by the heating means is 55 ° C. or higher. And, by raising the temperature of the residual chlorine-containing water that passes through to 55 ° C. or higher, even if the residual chlorine concentration is reduced, various bacteria due to the high-temperature water are sterilized at a high temperature, and the synergistic effect of the residual chlorine sterilization and the high-temperature sterilization is achieved. In addition, the sterilization time can be shortened.

Tap water is used as the residual chlorine-containing water supplied from the water supply section. By using tap water as the residual chlorine-containing water that passes through, it is possible to use water supplied to ordinary households, so that purification with excellent convenience and economy can be performed.

(Embodiment 1) Hereinafter, the means for purifying a bathtub water circuit in Embodiment 1 of the present invention will be described with reference to the drawings. Note that the same components as those in the related art are denoted by the same reference numerals and described.

In FIG. 1, bath water 1 is purified by bath water 1
When the circulating pump 5 is operated according to a signal from the control unit, the dirt components such as large dirt particles and hair inside pass through the adapter 3 attached to the bathtub 2 which is a water circuit, and are connected to the return pipe of the adapter 3. 4, circulation pump 5, switching valve A1
1. By switching the switching valve B12, the filter tank 6 was filled with the downward flow from the switching valve C13 of the upper going passage 15 of the filtration tank 6 through the heating source 9 passage or the bypass passage 16 for heating the bathtub water 1. The filtering material 7 filters and removes dirt components such as large dirt particles and hair. And purified bathtub water 1
Is the adapter 3 attached to the bathtub 2 through the switching valve D14.
The bathtub water 1 is continuously circulated and purified until the circulating pump 5 is stopped by a signal from the control unit, after returning to the bathtub 2 from the adapter 3 and the outflow pipe 8 connected to the outflow unit.

The temperature is set automatically (ie, about 30 to 40 ° C., which is lower than the bathing temperature to be heated by the bather's intention) automatically, that is, by a signal of the control unit stored in the microcomputer in advance. Automatically heated at regular intervals. Then, after being automatically heated at regular intervals, the circulation of the bathtub water 1 is automatically circulated by a signal of the control unit stored in the microcomputer in consideration of clogging caused by dirt components (relatively large scale particles, hair, etc.). The pump 5 is stopped once, and the switching valve B12 is switched to form a passage on the heating source 9 passage side or the bypass passage 6 side for heating the bathtub water 1, and the switching valve C13 and the switching valve D14 are backwashed and drained. Switch to the side. Then, the circulation pump 5 is operated again to use the bathtub water 1, and the lower backwash passage 17 and the switching valve D <b> 14 are switched from the switching valve B <b> 12, the heating source 9 for heating the bathtub water 1, or the bypass passage 16. Through the filter, the dirt component filtered and purified by the filter medium 7 filled in the filter tank 6 in the upward flow is backwashed and washed, and the bathtub water 1 containing a large amount of the backwashed dirt component is discharged to the switching valve C13. Tube 1
Drain for a certain amount of time or a certain amount from 8.

Further, when the bathtub water 1 in the bathtub 2 is drained for a certain period of time or by a certain amount, the circulation pump 5 is automatically stopped by the signal of the control unit stored in the microcomputer, and the water supply valve 19 is opened. , By passing the residual chlorine-containing water for a certain period of time or for a certain amount,
A return water circuit passage composed of a return pipe 4, a switching valve B 12, and a single water circuit of a forward water circuit composed of a switching valve C 13, a switching valve D 14, and a passage pipe 9 of the upper going pipe 15 from the side of the bypass passage 16 or the heating source 9. Repeated or simultaneous water supply to the combined water circuit of return or return, and select a combined water supply of the single water circuit and the combined water circuit, and deposit various types of bacteria deposited especially on the uneven structure of the water circuit. The sediment such as dirt as a nutrient source can be washed or reduced by the passing power to clean or purify, and various bacteria can be sterilized and purified by residual chlorine containing water containing residual chlorine.

FIGS. 2 and 3 show a flowchart and a timing chart, respectively, of a basic purification sequence of the water circuit described in detail above. First, a purification sequence will be described. When the operation switch of the remote controller 101 is turned on, the various switching valves 102 are switched to the circulation circuit side (to circulate from the return pipe 4 to the going pipe 8), and when the various switching valves are switched, the circulation pump 5 of 103 is turned on. When the circulation pump 5 of 103 is turned on, it is checked whether or not the water temperature of the bathtub water 1 of 104 has reached a set temperature, and when the water temperature of the bathtub water 1 has reached the set temperature,
Then, the process goes to 108 where the circulation pump 5 is turned off. However, if the temperature of the bathtub water 1 has not reached the set temperature, 105
When the heating source 9 is turned on and the bath water 1 is heated and reaches the set temperature of 106, the heating source 9 of 107 is turned off. Then, the circulation pump 5 is turned off, and the various switching valves 109 are switched to the drain circuit side (to drain the water from the lower backwash passage 17 to the drain pipe 18 through the filtration tank 6). The circulation pump 5 is turned on, the drainage timer 111 starts counting, and the drainage purification is performed until the drainage timer 111 reaches the set time. Backwashing is performed in the upward flow, and the bathtub water 1 is drained. When the set time is reached, the circulation pump 5 of 112 is turned off to stop draining, various switching valves are switched to the circulation circuit side at 113, and residual chlorine-containing water is supplied in advance at 114.
Is turned on, the 115 water flow timer starts counting, and the water flow purification is performed until the 115 water flow timer reaches the set time.
That is, while dirt components such as dirt deposited in the water circuit are washed and purified by hydraulic power, dirt components such as various bacteria are sterilized and purified by residual chlorine containing water containing residual chlorine. When the water flow timer 115 reaches the set time, the water supply valve 19 of 116 is turned off.
FF, turn on the circulation pump 5 of 117, and
The timer A of 18 starts counting, and the bath water 1 is again circulated and purified by setting the circulation purification mode again. When the timer A at 118 again reaches the set time, the process proceeds to check whether the temperature at 104 has been reached, and the above operation is repeated.

Next, the set time of the timer A will be described. The set time of the timer A is such that the heating means, the draining means, and the water passing means are carried out at regular intervals, and preferably at least once a day (24 hours), preferably every 4 to 18 hours, that is, 2 times a day. It is preferable to perform the above operation about to four times. A set time of less than 4 hours is effective for the purification effect (cleaning and sterilization purification), but increases the amount of heating, drainage and water flow, and is not preferable in consideration of energy saving and resource saving. On the other hand, if the set time is 18 hours or more,
There is a high possibility that the bath time will overlap with the bathing time, and if bath water drops during bathing, or if cold water (water temperature at the atmospheric level) is passed, cold water will flow into the bath water, and the bathing feeling will deteriorate, Further, it has disadvantages such as a slightly inferior purification effect. And since there is a large possibility of overlapping with the bathing time,
If the means for heating to the bathing temperature manually or automatically by the bather's intention is detected, within a certain time from the heating means, a combined control method of waiting for the heating means of the embodiment is also possible and within the scope of the present invention. is there.

Next, the set temperature will be described. The set temperature is set in a temperature range in which the water circuit can be subjected to high-temperature sterilization with high-temperature water, and is different from the set bath temperature (approximately 37 to 48 ° C.) in which the bather heats at will and lower than the set bath temperature. The temperature may be set, and preferably about 30 to 40 ° C. Because at least the outlet of the heating source 9 in the water circuit
It is not necessary to raise the set temperature too much because the purpose of high temperature sterilization and purification is to purify the outgoing passage to the outlet. If the set temperature is too high, it is not preferable because problems such as bathing safety and bathtub durability occur. When the upper limit set temperature of the heating water according to the type of the heating source 9 is estimated, for example, the electric heater (1K
(W = 860 kcal / hr), the heating efficiency is about 90%, the circulation flow rate is 6 l / min, and the temperature of the heated water in the outgoing passage when boiling at the set temperature of 45 ° C. is: 860 kcal / hr × 0.9 / 6 l / Min / 60min = 2.
2 deg The heating water temperature of the outgoing passage is 45 ° C. + 2.2 deg = 4
The temperature is 7.2 ° C, and no high-temperature sterilization / purification effect can be expected. On the other hand, general gas combustion for bath water heating (12000 kcal /
In the case of indirect heating (using a heat exchanger), the heat efficiency is about 75%, the circulation flow rate is 6 l / min, and the temperature of the heated water in the outgoing passage at the time of manually raising the set temperature of 42 ° C. is 12000 kcal /. Hour × 0.75 / 6 l / min / 60 min = 25 deg. The temperature of the heated water in the outgoing passage is 42 ° C. + 25 deg = 67 ° C., and the high temperature sterilization and purification effect is large. On the other hand, the heating water temperature in the outgoing passage when boiling at the upper limit set temperature of 35 ° C. during heat insulation is: 12000 kcal / hour × 0.75 / 6 l / min / 60 minutes = 25 deg. The heating water water temperature in the outgoing passage is 35 ° C. + 25 deg. = 60 ° C., and a high-temperature sterilization and purification effect can be sufficiently expected even with the heating operation at the time of keeping the temperature. As such a high-capacity heating source 9, it is desirable to use high energy of gas or oil.

Next, the drainage timer set time and the water flow timer set time will be described. The drainage timer needs to be determined according to the capacity of the circulating pump 5 and the clogging state of the filter medium 7 in the filtration tank 6. However, if the timer time is lengthened, the drainage amount of the bathtub water 1 increases, thereby saving water resources. The amount of drainage of the bathtub water 1 is about 5 to 10% of the amount of bathtub water 1
A degree is desirable. That is, the amount of bathtub water is 150-200.
If l, the timer set time is determined by the capacity of the circulation pump 5 for draining 7.5 to 20 l. On the other hand, the water flow timer setting time is required to be determined by at least the amount of water flowing through the entire capacity of the water circuit as the water flow amount, that is, the water flow pressure and the resistance of the water circuit. Since the amount of water injected into the water 1 increases and overflows from the bathtub 2, it is preferable that the water flow through the entire capacity of the water circuit be substantially the same as the drainage amount. Due to residual chlorine-containing water passing through,
Considering that the bathtub water 1 is sterilized and purified, it is desirable to set the water passage timer to about 5 to 20% of the bathtub water 1 amount. By setting a large amount of water flow with respect to the amount of drainage, the bathtub water 1 is used not only for the water circuit but also for the residual chlorine-containing water (1/10 to 1/5 of the residual chlorine containing water.
Low concentration) enables sterilization and purification. Although not described in detail in the present embodiment, a method of controlling the drainage timer set time, the drainage timer set time, the drainage amount and the drainage amount together is also possible and is within the scope of the present invention.

Next, a method of passing water from a water supply unit provided in a part of the water circuit will be described in detail. (1) Outgoing circulating water circuit passing water, (2) Return circulating water circuit passing water, (3) Outgoing and returning circulating water circuit repeatedly or (4) Returning and going By passing residual chlorine-containing water through the water circuit, either as single water, combined water, or combined water, or combined water with the combined water, the dirt that is a nutrient source for various bacteria in the whole water circuit In addition to intensively cleaning and purifying the accumulation, intensive sterilization and purification of various bacteria by residual chlorine can be more reliably purified.

Next, the residual chlorine-containing water will be described in detail.
The residual chlorine-containing water is fresh water containing 0.1 ppm or more of residual chlorine, in which chlorine gas is dissolved, and sodium hypochlorite is dissolved, and the concentration is separately controlled. As means for separately controlling the concentration, the concentration is controlled by injecting a fixed amount of chlorine gas-dissolved water or high residual chlorine concentration water, such as aqueous sodium hypochlorite, into the water supply using a metering pump or the like. The residual chlorine concentration of the feed water is 0.1 p
However, copper and copper alloy, NBR and EPDM rubber, PP and POM resin, and the like are generally used as the material of the components of the water circuit, and 10 ppm or less is desirable in view of the durability of these materials. In addition, in order to make the disinfection effect effective in a short time, and considering the durability of the component materials, the residual chlorine concentration of the preferable residual chlorine-containing water is:
0.3 to 5 ppm.

FIG. 4 shows a water circuit configuration and a purification determination plate configuration for determining the purification effect of the present invention and the conventional method.
(A) is a configuration diagram of a water circuit, in which a purification determination plate unit 20,
Reference numeral 21 denotes a return pipe 4 and a forward pipe 8 connected to the adapter 3 respectively. (B) is a purification determination plate unit 2.
FIG. 2C is a top view showing the configuration of the purification determination plate portion 2.
FIG.
(A white resin plate having a width of 10 mm and a thickness of 1 mm) is attached to the water passage portions of the return pipe 4 and the access pipe 8 via a sealing jig.

Table 1 uses the water circuit configuration detailed in FIG.
It shows the purification effect of the present invention and the conventional method. As detailed conditions and evaluations not described in the table, bathing conditions: bathing temperature 42 ° C./manual heating (4 times), purification conditions:
The residual chlorine concentration of residual chlorine-containing water when passing water is 0.5 to 1
ppm, (1) drainage timer 30 seconds (discharge amount: 10 l),
(2) Water flow timer: 60 seconds (water flow: 10 l), (3)
Timer A: 12 hours, (4) Set temperature: 35 ° C., Evaluation: Evaluation index in Table 2 (five-level evaluation of dirt index: color change = dirt, dirt accumulation was visually evaluated).

[0030]

[Table 1]

[0031]

[Table 2]

As is clear from Table 1, by repeatedly controlling the heating means to the set temperature, the drainage means, and the residual chlorine-containing water flow means, dirt components (dirt) easily deposited in the water circuit can be reduced. In addition, generally-produced scale (thing in which various kinds of bacteria have abnormally grown due to the scale as a nutrient source) is likely to occur at an evaluation index of 4 levels. However, by causing the residual chlorine-containing water of the present invention to pass through, the growth of various bacteria can be suppressed, and the water circuit can be kept clean.

(Embodiment 2) Purification of a bathtub water water circuit according to Embodiment 2 of the present invention will be described based on the heat retention, drainage, and water passage modes shown in FIG.

In FIG. 5, the automatic sequence No. based on the signal of the control unit is shown. 121 circulation pumps 5 from ON to 135
The natural leaving until the circulating pump 5 is turned on is described in 1 of the first embodiment.
Since the operation is the same as that of 03 to 117, the description is omitted. 13
The number of boilings at the set temperature of 6 starts counting and 136.
The bath water 1 is heated to the set temperature until the number of times of boiling reaches the set number. When the number of times of boiling reaches 136, the heating source 9 of 125 is turned off, and
The circulating pump 5 is turned on, and the flow shifts to checking whether the set temperature of 122 has been reached, and the above operation is repeated.

Next, the number of times of boiling will be described. The set number of times of the boiling is the number of times the bath water is heated to the set temperature, and at least every two or more times of heating (2 to 6 times), the drainage means and the water passing means are used together to reduce the drainage amount of the bathtub water. In addition to saving resources, it is possible to increase the effect of washing and purifying dirt components such as dirt accumulated in the water circuit, and to make the purifying effect more effective in combination with the sterilizing / purifying effect. Also, as a basic bath, the bather is heated to the bathing set temperature (higher than the bathtub water set temperature) by the bather's intention once a day during the bathing time. The number of times is set to several times (2-6
Even if the drainage means and the water passing means are used together (about 2 to 4 times), the purification effect does not deteriorate.

(Embodiment 3) As means for purifying the water circuit of the bathtub water according to the third embodiment of the present invention, a means for passing residual chlorine-containing water from the water circuit to the bathtub water will be described. Further, the water circuit for passing the residual chlorine-containing water into the bathtub water 1 includes (a) a return pipe passage in which the switching valve 12 is connected to the heating source 9 passage side and the bypass passage 16.
When the water supply valve 19 is turned on, the water is supplied to the bathtub water 1 through the switching valve 11, the circulation pump 5, the return pipe 4, and the return path of the adapter 3; When the switching valve 11 is switched so as not to flow to the (a) return pipe passage side and the water supply valve 19 is turned on, the switching valve 12 is switched on.
The heat source 9 or the bypass passage 16, the upper passage 15, the switching valve 13, the filtration tank 6, the switching valve 14, the passage pipe 8, the passage of the adapter 3, and two passages for supplying to the bathtub water 1. And means for passing residual chlorine-containing water to the bathtub water 1 by (1) (a) a return pipe passage,
(2) (b) Individual water flow through the passage pipe passage, (3) (a)
Water is repeatedly passed through the return pipe passage and (b) the outgoing pipe passage, (4)
(1) (a) return pipe passage; and (4) (a), in addition to the means for simultaneously passing water through the return pipe passage and the outgoing pipe passage.
This is a combined water passage means such as simultaneous water passage through the return pipe passage and (b) the outgoing pipe passage.

In the water passage means, (b) the heating source 9 in the passage pipe passage, the outlet from the heating source 9 to the upper passage 15, the switching valve 1
3, the filtration tank 6, the switching valve 14, the outgoing pipe 8, and the outgoing passage of the adapter 3 are manually and automatically heated by the heating source 9,
Since high-temperature water flows, high-temperature sterilization and purification are performed at regular intervals. At this time, by flowing high-temperature water, dirt and the like that easily accumulate particularly on the concavo-convex components of each connection of the water circuit is reduced in adhesion by the high-temperature water, and can be washed or reduced by water-passing power, so that cleaning and purification can be performed. Has a synergistic effect with high-temperature sterilization purification. On the other hand, (b) since high-temperature water does not flow in the bypass passage 16 of the outgoing pipe passage, in this embodiment, the outgoing circulation circuit of the water circuit is provided on the bypass passage 16 side having less water flow resistance than the heating source 9 passage side. Since the capacity of the circulating pump 5 can be utilized more, when passing residual chlorine-containing water, it can be sterilized and purified by flowing the water to the bypass passage 16 side. On the other hand, (a) the return pipe passage is apt to accumulate dirt and the like on the concavo-convex configuration portion of each connection of the water circuit. Wash or reduce with water power, wash and purify, and sterilize and purify from residual chlorine in residual chlorine-containing water. (3) (a) As a water-passing means that makes sterilization and purification by residual chlorine containing water containing residual chlorine more effective,
Desirably, water is repeatedly passed through the return pipe passage and (b) the outgoing pipe passage or (4) water is simultaneously passed through the (a) return pipe passage and (b) the outgoing pipe passage. As described in detail above, it is preferable to pass the residual chlorine-containing water at least through the (a) return pipe passage of the water circuit that cannot be subjected to high-temperature sterilization.

(Embodiment 4) Purification of a bathtub water circuit according to Embodiment 4 of the present invention will be described based on the simultaneous water passage and residence mode shown in FIG.

In FIG. 6, the circulation pump 5 is turned off and stopped by a signal from the control unit, the water supply valve 19 for supplying the residual chlorine-containing water is turned on in advance, and the water supply timer starts counting. In the above-described water circuit, a set time is set to be equal to or more than the total capacity of (a) the return pipe passage and (b) the outgoing pipe passage of (4), and water is simultaneously supplied until the set time is reached. To turn off the water. Then, when the water supply valve 19 is turned off, the retention timer starts counting, and the residual chlorine-containing water is retained in the water circuit through which the residual chlorine-containing water flows until the set time is reached. The various bacteria in the water circuit are brought into contact with the residual chlorine-containing water by the interval between the stays, so that the sterilizing and purifying effect can be further increased and ensured.

Next, the retention time of the retention timer is determined by the residual chlorine concentration of the residual chlorine-containing water. Although the bactericidal concentration and time are different depending on various bacteria, in general, when the residual chlorine concentration is low, the setting time is long, and when the residual chlorine concentration is high, the setting time is short,
FIG. 7 shows the results of the sterilization evaluation performed by the present inventors. The sterilization evaluation conditions in FIG. 7 are as follows: sampled volume: 500 ml, water temperature:
20 ° C, initial general bacterial count: 5,000,000 cells / m
l, Residual chlorine concentration: Tested under various conditions of 0, 0.1, 0.5 and 2 ppm.

As shown in FIG. 7, the residence time for reducing the number of general bacteria to 100 or less, which is the standard of tap water, is as follows:
Low residual chlorine concentration of water containing residual chlorine is about 1 at 0.1 ppm
5 minutes, 0.5 ppm at about 5 minutes, and 2 ppm at about 2 minutes. Therefore, the preferred residence time depends on the residual chlorine concentration, but is at least 15 minutes.

(Embodiment 5) Purification of a water circuit of bathtub water according to Embodiment 5 of the present invention will be described with reference to FIGS.

In FIG. 8, when the circulation pump 5 is turned off and stopped by the signal of the control unit, the heating source 10 of the hot water supply water circuit is turned on, the water supply valve 19 is turned on, and the residual water for supplying water to a preset high set temperature is set. At the same time as the chlorine-containing water is heated, the water-flow timer starts counting and reaches the water circuit, that is, (a) the return pipe passage and (b) the set-out pipe passage of (4) described in detail in the fourth embodiment. High-temperature water is passed simultaneously. When the set time is reached, the heating source 10 is turned off,
When the water supply valve 19 is turned off, and the water supply valve 19 is turned off, the retention timer starts counting, and the residual chlorine-containing water is retained in the water circuit through which the residual chlorine-containing water flows until the set time is reached. The staying time and the staying hot water can reduce the adhesive force accumulated in the water circuit, and can make various bacteria contact the residual chlorine-containing water, thereby increasing the sterilizing and purifying effect and ensuring the effect. Further, since the heating water is high-temperature water, various bacteria can be more reliably sterilized and purified by the synergistic effect of high-temperature sterilization and residual chlorine sterilization. Although not described in detail in the embodiment, the durability of the components of the water circuit and burns can be increased by repeatedly passing cold water (water temperature at an atmospheric temperature level) for a certain period of time, particularly after passing high-temperature water. It is cooled in consideration of fire prevention and the like.

Next, high-temperature sterilization is to sterilize various bacteria by utilizing their weakness to high temperatures. Although the high-temperature sterilization temperature and time are different depending on various bacteria, generally, when the temperature is relatively low, the holding time is long, and when the temperature is high, a short holding time is sufficient. FIG. 9 shows the results of the high-temperature sterilization evaluation performed by the present inventors. The high-temperature sterilization evaluation conditions shown in FIG.
00 / ml was placed in a beaker, and a thermocouple was immersed in the test water and heated in a microwave oven. Water temperature: 50, 55,
The test was performed at 60, 65, and 70 ° C. The above-mentioned heating temperature was the maximum temperature of the temperature rise, was set within 2 degrees of intersection, and was maintained in a constant temperature water bath during the holding time. Further, the holding time is the maximum temperature of the temperature rise, and is the time from when the temperature reaches within 2 deg.

As shown in FIG. 9, the heating temperature for reducing the number of general bacteria to 100 or less, which is the standard for tap water, is as follows:
5 minutes or more at 55 ° C. or more is required. At 60 ° C,
When the temperature reaches 60 ° C., almost 100% high-temperature sterilization and purification can be performed.

(Embodiment 6) Purification of a water circuit of bathtub water according to Embodiment 6 of the present invention will be described with reference to FIG.

In FIG. 10, the water supply valve 19 is turned on by a signal from the control section, and tap water used in ordinary households is set as the residual chlorine-containing water for a set time or a fixed amount.
By simultaneously passing water through the return and outgoing water circuits described in (2) above, a purification method excellent in convenience and economy can be provided.

[0048]

As described above, the method of purifying a bathtub water circuit according to the present invention uses the water circuit comprising an adapter, a return pipe, a circulating pump, a heating source, a filtration tank, a going pipe and an adapter. By providing a means for automatically heating the water to a set temperature at regular intervals during natural standing and a means for discharging for a fixed amount of time or a fixed amount, the heated high-temperature water flows into the water circuit, Sterilization and purification, drainage and cleaning by passing water, and residual chlorine sterilization and purification by passing water further purify dirt components such as dirt and various bacteria in the water circuit, and always keep the water circuit clean. , Can be clean. And, by keeping the water circuit clean and clean at all times, a plurality of people can continuously take a bath or use the bathtub water continuously.

Further, after heating to the set temperature, the unit is automatically heated to the set temperature by means for automatically draining the bathtub water for a fixed time or a fixed amount and means for automatically passing the residual chlorine-containing water to the bathtub water. Count the number of times, when the count reaches a set number, by providing the drainage means and water passing means, to flow high-temperature water, to reduce the adhesion of dirt and the like deposited in the water circuit dirt components such as dirt In addition to facilitating peeling, cleaning and purifying is easy, the amount of drainage in bathtub water is reduced, and resources can be saved. At the same time, high-temperature disinfection purification, cleaning purification, and residual chlorine disinfection purification can be made more effective. .

In addition, any one of the following types of water flow: outgoing pipe flow, return pipe water flow, outgoing pipe and return pipe repeated water flow, outgoing pipe and return pipe simultaneous water flow, combined water or combined water and combined water. By the water means, the water circuit can be intensively or reliably purified.

Further, the residual chlorine-containing water is allowed to stay for at least a certain period of time after passing the residual chlorine-containing water through at least the entire volume of the bathtub water circuit, whereby the water circuit can be further sterilized and purified. it can.

Further, by repeatedly passing cold and hot water, it is possible to further reduce the accumulation of dirt, which is a nutrient source of various bacteria, which easily accumulates on the concave / convex portion of the connection portion of the water circuit, and suppress the growth of various bacteria. Can be. Further, by passing the water at a high temperature under heating, the sterilization can be performed more reliably by the synergistic effect of the high temperature sterilization and the residual chlorine-containing water.

Further, by passing tap water as residual chlorine-containing water, purification can be performed with excellent convenience and economy.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a water circuit of a bathtub apparatus according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing a basic purification sequence of the bathtub apparatus according to the first embodiment of the present invention.

FIG. 3 is a timing chart showing a basic purification sequence of the bathtub apparatus according to the first embodiment of the present invention.

FIG. 4A is a configuration diagram of a comparative test water circuit according to the first embodiment of the present invention and a conventional method. FIG. 4B is a top view of a purification plate portion of the comparative test water circuit. Cross section of plate

FIG. 5 is a flowchart showing a heat retention, drainage, and water passage mode of the bathtub apparatus according to the second embodiment of the present invention.

FIG. 6A is a configuration diagram of a water circuit of a bathtub apparatus according to a fourth embodiment of the present invention. FIG. 6B is a flowchart showing a simultaneous water supply and stop mode of the water circuit.

FIG. 7A is a diagram showing the sterilization evaluation effect of the bathtub apparatus according to the fourth embodiment of the present invention. FIG. 7B is a diagram showing the same sterilization evaluation effect.

8A is a configuration diagram of a water circuit of a bathtub apparatus according to Embodiment 5 of the present invention. FIG. 8B is a flowchart showing a high-temperature residence mode of the water circuit.

FIG. 9 (a) is a diagram showing a high-temperature sterilization evaluation effect of the bathtub apparatus according to the fifth embodiment of the present invention. (B) A diagram showing the same high-temperature sterilization evaluation effect.

FIG. 10 is a configuration diagram of a water circuit of a bathtub apparatus according to Embodiment 6 of the present invention.

FIG. 11 is a configuration diagram of a water circuit of a conventional bathtub apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bath water 3 Adapter 4 Return pipe 5 Circulation pump 6 Filtration tank 7 Filtration material 8 Outgoing pipe 9, 10 Heat source (heating means) 11 Switching valve A 12 Switching valve B 13 Switching valve C 14 Switching valve D 15 Upper going passage 16 Bypass passage 17 Lower backwash passage 18 Drain pipe 19 Water supply valve 20, 21 Purification judgment plate part 22 Purification judgment plate

Continued on the front page (51) Int.Cl. ⁶ Identification symbol FI C02F 1/50 531 C02F 1/50 540B 540 550H 550 560A 560 560Z 1/76 A 1/76 B01D 35/02 J (72) Inventor Tetsuro Aoki Matsushita Electric Industrial Co., Ltd. (72) Inventor Tatsushi Iwamoto 1006 Kadoma Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (7)

[Claims] 1. A circulating pump provided in a part of a water circuit for circulating bath water, a filter for filtering the bath water, an adapter for connecting the filtration tank, the bath tub and the water circuit, and a water containing residual chlorine in the water circuit. A water supply unit for supplying water every time is provided, an automatic heating means for automatically heating the bathtub water to a set temperature at a constant time during natural standing, and a water circuit for a predetermined time after heating to a set temperature by the automatic heating means. Drainage means for draining bath water from is provided, counting the number of times the heating to the set temperature,
A bathtub apparatus for draining bathtub water by the drainage unit and supplying water to a water circuit by a water supply unit when the count reaches a set number of times. 2. A switching valve for switching the direction of water supply from the water supply section to the water circuit, and when the residual chlorine-containing water is supplied from the water supply section to the water circuit, the switching valve is switched to a return side or an outgoing side. Bathtub device as described. 3. After the residual chlorine-containing water supplied from the water supply section reaches the circulation adapter through the water circuit, the water supply is stopped.
3. The bathtub apparatus according to claim 1, wherein the residual chlorine-containing water is retained in the water circuit for a certain period of time. 4. The bathtub apparatus according to claim 1, further comprising a heating means for heating the residual chlorine-containing water. 5. The bathtub apparatus according to claim 4, wherein after the residual chlorine-containing water heated by the heating means is supplied to the water circuit, the residual chlorine-containing water not heated by the heating means is supplied to the water circuit. 6. The temperature of the residual chlorine-containing water heated by the heating means is 55 ° C. or higher.
Bathtub device as described. 7. The bathtub apparatus according to any one of claims 1 to 6, wherein the residual chlorine-containing water supplied from the water supply section is used as tap water.