JPH10258206A - Bathtub apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To purify slime and various kinds of bacteria deposited on a water route of a bathtub water. SOLUTION: For purification of a water route of bathtub water, means for manual heating, automatic heating, automatic discharging of water, and automatic leading of remaining chlorine-containing water are installed in a water route comprising an adapter 3, a turning-back pipe 4, a filtration tank 6, and a going-to pipe 8, so that slime and various kinds of bacteria deposited on the water route are heated, washed, and sterilized and purified. Consequently, even if a plurality of people successively take a bath or bathtub water is continuously used, the water route is constantly kept clean and sanitary.

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, there is a bathtub apparatus for purifying a water circuit of bathtub water 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 means B10, which is a heating source for heating the bathtub water 1, is provided between the circulation pump 6 and the filtration tank 8. Water is supplied to the bathtub 2 or a hot water beam is supplied from a water supply unit provided in a part of the water circuit through a return pipe 5 and a forward pipe 9 of the water circuit via a heating means B11 for heating a hot water supply water circuit. Is done.

[0004]

However, in a conventional bathtub apparatus for purifying bathtub water, first, large dirt, hair, etc., which are dirt components of the bathtub water, are simply purified by a primary filter provided on an adapter. The relatively large dirt particles (approximately 10 microns or more) that have passed through can be filtered and purified by the filtration tank of the water circuit. About 1 micron) various bacteria (general bacteria,
The water circuit is liable to become dirty and unclean due to insufficient filtration and purification of the dirt components due to E. coli and the like in the filtration tank. More importantly, the water circuit is a circulation pump, filtration tank,
The connection part of the return pipe and the adapter is an uneven part, where the flow of water is poor (large turbulence), and it is easy to accumulate dirt as a nutrient source of various bacteria, and it is an environment where various bacteria are easy to grow. . In particular, since the dirt components of the bathtub water circulate as it is up to the filtration tank entrance, it is more likely to become unclean.To keep them clean and clean, always replace the bathtub water and clean or wash the bathtub. Since it has to be forcibly washed by passing water or washing with an agent, there is a problem that it is very uneconomical and troublesome.

[0005]

According to the present invention, there is provided a bathtub apparatus for purifying a bathtub water circuit according to the present invention, comprising: a part of a water circuit for circulating bathtub water;
A heating circuit and a filtration tank are provided, and a water circuit is constructed by connecting a return pipe and an outgoing pipe between the circulation pump, the heating means, and the adapter attached to the filtration tank and the bath tub, and contains residual chlorine supplied from the water supply section. Heating means for heating at least one of water or bath water; automatic heating means for automatically heating bath water to a set temperature at regular time intervals during natural standing; bath water for automatic at regular time intervals via a water circuit; It is equipped with drainage means for draining water.

[0006] According to the above invention, the bathtub water circuit is automatically sterilized and purified by heating water at regular intervals, and the bathtub water is reduced by drainage to reduce the residual chlorine-containing water in the reduced bathtub water. To the same amount of water as before drainage, and by this water-flowing power, dirt components such as dirt deposited in the water circuit are washed and purified. The water circuit can be kept clean and clean by the synergistic purification effect of the component sterilization purification means. 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. Also, due to the synergistic purification effect,
It is possible to exhibit a double purification effect that enables the combined purification of bath water.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is provided in a part of a water circuit, a circulation pump for circulating bath water, a filtration tank for filtering bath water, an adapter for connecting the bath and the water circuit, and a water circuit. A water supply unit that also supplies residual chlorine-containing water at regular intervals, heating means that heats at least one of the residual chlorine-containing water or bathtub water supplied from the water supply unit, and a bathtub at regular intervals while the bathtub water is left naturally. It is provided with automatic heating means for automatically heating to a set temperature, and drainage means for automatically draining bathtub water via a water circuit at regular intervals.

Then, by automatically reheating at regular intervals during natural standing, various bacteria in the water circuit passage are re-high-temperature sterilized and purified, and the high-temperature sterilization and purification are performed by the automatic heating. Next, dirt and various bacteria as dirt components of the bathtub water drainage passage in the water circuit passage are automatically drained and purified at regular intervals during natural standing. At regular intervals, the residual chlorine-containing water is passed from the water circuit to the bathtub water from the water circuit automatically provided in a part of the water circuit, and at least the bathtub water drained by the drainage means is supplied to the original bathtub water volume. In addition to this, the water circuit cleans and purifies dirt components such as dirt deposited in the water circuit, and further sterilizes and purifies the dirt components such as various bacteria with residual chlorine containing water containing residual chlorine. The synergistic purification effect of purification, cleaning purification, and residual chlorine disinfection purification can keep the water circuit clean and clean at all times.
Also, by always keeping the water circuit clean, a plurality of people can continuously take a bath or use the bathtub water continuously. The synergistic purifying effect can exhibit a double purifying effect which enables purifying bath water together.

Further, after the bathtub water is drained by the drainage means, water containing residual chlorine is supplied to the bathtub from the water supply unit via a water circuit.

[0010] First, dirt and various bacteria, which are dirt components in the bathtub water and the drainage passage, are purified by drainage. Next, dirt components such as dirt deposited in the water circuit by the flow of water are cleaned and purified. By disinfecting and purifying the dirt components such as various bacteria by the residual chlorine, the cleaning effect of the water circuit can be further enhanced.

Further, after the bathtub water is drained by the drainage means, the bathtub water is heated to a set temperature by the automatic heating means, and the residual water containing chlorine is supplied to the bathtub through the water circuit by the water supply unit.

[0012] First, the amount of bathtub water is reduced, and the energy consumption of the heating source for heating to the next set bathwater temperature (set temperature of about 30 to 40 ° C, which is lower than the bathing temperature) is reduced. Then, by passing water after reaching the set temperature, the set temperature is an environmental temperature in which various bacteria are easily proliferated, so that the temperature of the bathtub water is lowered more quickly to reduce the growth of various bacteria. Can be. In addition, the residual chlorine containing water has a synergistic effect of being able to sterilize and purify dirt components such as various bacteria by residual chlorine.

Further, a switching valve for switching a water supply direction from the water supply unit to the water circuit is provided, and when the residual chlorine-containing water is supplied from the water supply unit to the water circuit, the switching valve is switched to a return side or a forward 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 improved as compared with the case where water is supplied simultaneously to the return side and the outgoing side. Can be.

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

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 sterilizing effect. be able to.

Further, a heating means for heating the residual chlorine-containing water is provided. Further, the present invention is a bathtub apparatus for supplying the residual chlorine-containing water heated by the heating means to the water circuit and then supplying the residual chlorine-containing water not heated by the heating means to the water circuit.

By passing cold water after hot water, the cold water flow delays the decomposition of the residual chlorine, maintains the residual chlorine concentration, and increases the sterilizing effect. The passage of water can reduce the adhesion of the deposited dirt to the concave and convex portions of the water circuit, wash or reduce the dirt deposited, and increase the purification ability. The temperature of the residual chlorine-containing water heated by the heating means is 55 ° C. or higher.

By setting the temperature of the residual chlorine-containing water to be passed 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. Due to the synergistic effect, the sterilization time can be reduced. Tap water was used as the residual chlorine-containing water supplied from the water supply unit.

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

(Embodiment 1) Hereinafter, a 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 heating source 9 passage or the bypass passage 16 as a heating means for heating the bathtub water 1
Through the switching valve C13 in the upper passage 15 of the filter tank 6, the filter medium 7 filled in the filter tank 6 in a downward flow filters and purifies dirt components such as large scale particles and hair. Then, the purified bathtub water 1 passes through the switching valve D14, returns to the bathtub 2 from the access pipe 8 connected to the outlet portion of the adapter 3 attached to the bathtub 2, and returns to the bathtub 2 from the adapter 3, and the circulating pump 5 based on a signal from the control unit.
The bathtub water 1 is continuously circulated and purified until the operation is stopped.

The tubing water 2 is driven out manually by a signal from the control unit by the bather's intention.
, The bathtub water 2 is circulated through the passage of the heating source 9 composed of the heat of combustion of gas and the like, and the combustion heat of the heating source 9 is absorbed and heat exchanged to be heated to a high temperature. From the outlet of the heating source 9 to the bathtub 1 High-temperature water flows to the outlet of the attached adapter 3, and the entire bathtub water 2 is heated until it reaches a set temperature. At this time, various bacteria in the water circuit passage through which the high-temperature water flows are sterilized by high-temperature sterilization.

Also, the circulation pump 5 is activated at regular intervals during natural standing by the signal of the control unit automatically, that is, stored in the microcomputer in advance, and the bathtub water 2 is reheated to the set temperature, thereby providing a water circuit. Various bacteria in the passage are regularly sterilized by high-temperature sterilization, and the high-temperature sterilization and purification can be performed by the manual heating and the automatic heating.

Further, if the filter medium 7 filled in the filter tank 6 is continuously filtered and purified for a certain period of time, if the filter is clogged with dirt components (large dirt particles, hair, etc.) of the bathtub water 1, the control stored in the microcomputer is performed. The circulation pump 5 is automatically stopped once by a signal from the section, and the switching valve B12 is switched to form a passage on the heating source 9 passage side or the bypass passage 16 side for heating the bathtub water 1 and a switching valve. Switch C13 and switching valve D14 to the backwash drainage side.
Then, the circulation pump 5 is operated again to use the bathtub water 1, and the switching valve B 12, the heating source 9 for heating the bathtub water 1, or the lower backwashing passage 1 from the bypass passage 16.
7. Backwashing and washing of the dirt component that has passed through the switching valve D14 and is filtered by the filter medium 7 filled in the filtration tank 6 in an upward flow, and a drain pipe 18 that connects the backwashed bath water 1 to the switching valve C13. It is drained for a certain period of time or a certain amount.

When the bathtub water 1 in the bathtub 2 is drained for a certain period of time, the circulating pump 5 is automatically stopped by the signal of the control unit stored in the microcomputer, and the water supply valve 1 is stopped.
By opening the valve 9 to allow the residual chlorine-containing water to flow for a fixed time or a fixed amount, the return pipe 4, the return water circuit passage of the circulation pump 5, the switching valve B 12, the bypass passage 16 side, or the heating source 9 side Valve C of the upper going pipe 15
13, a switching valve D14, a single water circuit of the outgoing water circuit consisting of the outgoing pipe 9 or return, a repetitive watering or simultaneous watering of the outgoing water circuit is selected, and various kinds of water are accumulated in the water circuit especially in the concavo-convex portion. It is possible to clean or purify by washing or reducing the accumulation of dirt, which is a nutrient source of bacteria, with hydraulic power, and to sterilize and purify various bacteria with 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, the purifying sequence will be described. When the operation switch of the remote controller of the sequence 101 that can be controlled by a wired or wireless connection with the control unit incorporating the microcomputer is turned on, various switching valves 102 are switched to the circulation circuit side (from the return pipe 4 to the going pipe 8). (Circulation), 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, 104, 11
The timers A, B and C of 2,117 each start counting, and the timer A of 104 first purifies the circulation until the set time is reached, and when the set time is reached, the circulation pump 5 of 105 turns on the O.
FF is performed and the various switching valves 106 are switched to the drain circuit side (drain from the lower backwash passage 17 to the drain pipe 18 through the filtration tank 6), and when the various switching valves are switched, the circulation pump 5 of 107 is turned on, The drainage timer of 108 starts counting, and various kinds of dirt components purified by drainage purification, that is, the filtration medium 7 of the filtration tank 6 are backwashed and washed in the upward flow using the bathtub water 2 until the drainage timer of 108 reaches a set time. And drain the bathtub water 2. When the set time is reached, the circulation pump 5 of 109 is turned off to stop draining, various switching valves are switched to the circulation circuit side at 110, and the circulation pump 5 is turned on at 111.
The bath tub water 2 is circulated and purified again in the circulation purification mode. Then, the timer A of 104 starts counting again, and the above operation is repeated.

During the operations of the sequences 104 to 111, the timer B of 112 also starts counting simultaneously, and the timer B has a shorter set time than the timer A of 104,
In addition, the timer time is set so that the operation can be performed during the timer A of 104. When the timer B of 112 reaches the set time, the timer A of 113 starts counting (the same set time as the timer A of 104), purifies the circulation until the set time is reached, and when the set time is reached, the heating of 114 is started. When the source 9 is turned on, the heating source 9 of 114 is continuously turned on until the temperature of the bathtub water 2 as a whole is set to 115, and when the temperature reaches the set temperature, the heating source 9 is turned off at 116 to heat the bathtub water 2. To stop. At this time, high-temperature water flows from the outlet of the heating source 9 to the outward passage formed by the outlet of the adapter, and various bacteria are sterilized by high-temperature. Then, the timer A of 113 starts counting again, and the above operation is repeated.

The sequence 104 to 111 and 1
During the operation of 12 to 116, the timer C of 117 also starts counting at the same time. The timer C has a shorter set time than the timer A of 104, is longer than the timer B of 112, and the timer of the timers A and 113 of 104. The timer time is set so that the operation can be performed during A. When the timer C at 117 reaches the set time, the timer A at 118 starts counting (the same set time as the timer A at 104 and 113), performs the circulation purification as described above until the set time is reached, and 119 at the set time. Of the circulation pump 5 is turned off, the water supply valve 19 of 120 for supplying the residual chlorine-containing water in advance is turned on, and the
The water flow timer starts counting, and the water flow timer 121 detects and cleans water by means of water power until water reaches a set time, that is, cleans and purifies dirt components such as dirt accumulated in the water circuit. Dirt components such as various bacteria are sterilized and purified by chlorine. When the water supply timer 121 reaches the set time, the circulation pump 5 of 122 is turned on, and the timer A of 118 starts counting again, and the above operation is repeated.

When the sweeping switch 123 is turned on manually during each of the above operations, the various timers A, B, C of 104, 112, 117 and the various timers A, 113, 118 of which the circulating pump 5 is turned on. It is operable during the set time, the heating source 9 of 124 is turned on, and the heating source 9 of 124
When the temperature reaches the set temperature, the heating source 9 is turned off at 126 and the heating of the bathtub water 2 is stopped. At this time, high-temperature water flows from the outlet of the heating source 9 to the outward passage formed by the outlet of the adapter 3, and various bacteria are sterilized by high-temperature. And the 1
At the same time as the heating source 9 is turned off, the chasing SW 127 is turned off.

Although not described in detail in the above embodiment, 123
The various timers continue to count each time during the period from turning on the sweeping SW manually and turning off the sweeping switch 127. Further, when the purging switch 123 is manually turned on, the bath tub water 2 can be set to the set temperature manually, that is, by the bather's intention.

Further, the set temperature range of the bathtub water 2 differs between manual and automatic. The manual setting temperature range of the bathtub water 2 is generally about 37 to 48 ° C. in the bathable temperature, and the automatic setting temperature range of the bathtub water 2 is automatic during natural leaving after the bathing. Since the time is unwilling, the set temperature may be lower than the set temperature range of the bathtub water 2 manually.
0-40 degreeC is desirable. This is because it is not necessary to raise the set temperature much at least because the purpose of high-temperature sterilization purification is at least the outgoing passage from the outlet of the heating source 9 of the water circuit to the outlet of the adapter 3. When the set temperature is increased depending on the type of the heating source 9,
For example, in the case of a direct heating source using an electric heater (1 KW = 860 kcal / hour), the thermal efficiency is about 90%, and the circulation flow rate is 6
1 / min, 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 / 60 min = 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), heat efficiency is about 75%, 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: 12000 kcal / hour × 0.75 / 6 l / min / 60 min = 25 deg. The temperature of the heated water in the outgoing passage is 45 ° C. + 25 deg = 70 ° 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 set temperature 35, 30 ° C. is: 12000 kcal / hour × 0.75 / 6 l / min / 60 min = 25 deg. The heating water water temperature in the outgoing passage is 35 ° C. + 25 deg = 60 ° C. 30 ° C. + 25 deg = 55 ° C. Thus, a high-temperature sterilization and purification effect can be sufficiently expected.

Next, a description will be given of the automatic timer at regular intervals, that is, the automatic timer. "Every fixed time" means that the heating, drainage and water passing operations are automatically performed, and preferably at least once a day (24 hours), and it is preferable to perform the operation every 4 to 18 hours. Although an automatic timer within 4 hours is effective for the purification effect, it is not preferable in consideration of energy saving and resource saving due to an increase in energy consumption due to heating and an increase in drainage. On the other hand, with an automatic timer of 18 hours or more, there is a large possibility that the bath time overlaps with the bathing time, and bathtub water drops during bathing,
In the case of passing cold water (water temperature at the atmospheric level), it takes into account drawbacks such as a poor bathing feeling and a slightly inferior purifying effect because cold water flows out.

Next, the drainage timer set time and the water flow timer set time will be described. The drainage timer needs to be determined based on 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 2 increases, thereby conserving water resources. The amount of drainage of the bathtub water 2 is about 5 to 10% of the amount of the bathtub water 2
A degree is desirable. That is, the amount of bathtub water 2 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 2 increases and overflows from the bathtub 1, the water flow through the entire capacity of the water circuit is almost the same as the drainage amount, and the bathtub water 2 is sterilized by the residual chlorine-containing water passing through. In consideration of purification, it is desirable to set the water passage timer to about 5 to 20% of the bathtub water amount. Although not described in detail in this embodiment, the drainage timer set time,
A method of simultaneously controlling the set time of the water flow timer, the drainage amount, and the water flow amount 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 circulating water circuit, either as simultaneous water, sole water, or combined water, or as a combined water flow, it becomes a nutrient source for various bacteria in the whole water circuit. In addition to intensively cleaning and purifying the deposits, 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 as residual chlorine, in which chlorine gas is dissolved, and in which sodium hypochlorite is dissolved, and whose concentration is controlled. As the concentration control, the residual chlorine concentration was 0.1 p
However, copper and copper alloys, NBR and EPDM rubber, PP and POM resin, and the like are generally used as the materials of the components of the water circuit, and considering the durability of these materials, it is preferably 10 ppm or less. In addition, when the sterilization and purification are made effective in a short time and the durability of the component materials is taken into consideration, a preferable residual chlorine concentration of the residual chlorine-containing water is 0.3 to 5 ppm.

FIG. 4 shows the configuration of a water circuit for determining the purification effect of the present invention and the conventional method and the configuration of a purification determination plate.
(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 an outgoing 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 outgoing 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, (a) bathing conditions: 4 persons / day, bathing temperature: 42 ° C./4 hours,
(A) Purification conditions: the residual chlorine concentration of the residual chlorine-containing water at the time of passing water is 0.5 to 1 ppm;
Seconds (water discharge: 10 l), (2) Water flow timer: 60 seconds (water flow: 10 l), (3) Heating set temperature 35 when left naturally
° C, (4) Timer A: set for 6 hours, Timer B: set for 5 minutes, Timer C: set for 4 hours. Evaluation: Evaluation index in Table 2 (Stain index: 5 grades: Color change = dirt, dirt accumulation visually evaluated ) Was evaluated.

[0039]

[Table 1]

[0040]

[Table 2]

As is evident from Table 1, by passing residual chlorine-containing water, dirt components (dirt) easily deposited in the water circuit can be reduced. In addition, generally known scale (one in which various kinds of bacteria have become abnormally grown with scale as a nutrient source) is likely to be generated at an evaluation index of 4 level. However, because of the occurrence, by allowing 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 circuit according to Embodiment 2 of the present invention will be described with reference to the drainage and water passage modes shown in FIG.

In FIG. 5, when the circulation pump 5 in the sequence 131 is turned on by a signal from the control unit, the timer A 132 starts counting, and the bath water 2 is circulated and purified until the timer A 132 reaches the set time. When the time is reached, the circulation pump 5 133 is turned off, and the various switching valves 134 are switched to the drain circuit side (drain from the lower backwash passage 17 to the drain pipe 18 through the filtration tank 6), and the various switching valves are switched. 135, the circulation pump 5 is turned on, the drainage timer 136 starts counting, and the various dirt components that have been filtered and purified by the filter medium 7 of the filtration tank 6 until the drainage timer of 136 reaches the set time. Using the bathtub water 2, backwashing is performed in an upward flow and the bathtub water 2 is drained. When the set time is reached, the circulating pump 5 is turned off to stop draining, and the various switching valves 138 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. Then, the water supply valve 19 of 139 for supplying the residual chlorine-containing water in advance was turned on, the water flow timer of 140 started counting, and the water flow purification, that is, accumulated in the water circuit until the water flow timer of 140 reached the set time. Dirt components such as dirt are washed and purified by hydraulic power, and dirt components such as various bacteria are sterilized and purified by residual chlorine containing water containing residual chlorine. 1
When the water flow timer 40 reaches the set time, the circulation pump 5 131 is turned on, and the above operation is repeated. At this time, the detailed conditions of the drainage timer and the water passage timer are the same as those described in the first embodiment, and thus the description is omitted.

(Embodiment 3) Purification of a bathtub water circuit according to Embodiment 3 of the present invention will be described based on the drainage, heating, and water flow modes in FIG.

In FIG. 6, the second embodiment is performed until the circulating pump 5 in the sequence 141 is switched from ON to various switching valves 148 to the circulating circuit side (to circulate from the return pipe 4 to the forward pipe 8) by the signal of the control unit. 5 is the same as the drainage and water flow mode in FIG. 148 various switching valves on the circulation circuit side (circulates from return pipe 4 to going pipe 8)
When the 149 circulation pump 5 is turned on,
The heating source 9 of 0 is turned on and the heating source 9 of 149 is continuously turned on until the temperature of the bathtub water 2 as a whole is set to 151.
Then, when the temperature reaches the set temperature, the heating source 9 is turned off at 152 and the heating of the bathtub water 2 is stopped. At this time, high-temperature water flows from the outlet of the heating source 9 to the outward passage formed by the outlet of the adapter 3, and various bacteria are sterilized by high-temperature. 151 heating source 9 is OF
F, the circulation pump 5 of 153 is turned off, and the water supply valve 19 of 154 for supplying the residual chlorine-containing water in advance is turned on.
The 55 water flow timer starts counting, and the 155 water flow timer reaches the set time, thereby purifying the water, that is, cleaning and purifying dirt components such as dirt accumulated in the water circuit with water power, and removing residual chlorine-containing water. The residual chlorine in the water sterilizes and purifies dirt components such as various bacteria. When the water flow timer 155 reaches the set time, the circulation pump 5 141 is turned on, and the above operation is repeated. At this time, the detailed conditions of the drainage timer, the water passage timer, and the set heating temperature are the same as those described in the first embodiment, and thus the description thereof is omitted.

As described above, by setting the sequence of the drainage, heating, and passing water as described above, first, the amount of water in the bathtub water 2 is reduced, and the set temperature of the next bathtub water 2 (about 30 to 40 ° C., which is higher than the bathing temperature) Energy consumption of the heating source 9 for heating to a low set temperature) can be reduced, that is, energy can be saved. Then, by passing water after reaching the set temperature, the set temperature is an environmental temperature at which various kinds of bacteria are easily proliferated. Therefore, by lowering the temperature of the bathtub water 2 more quickly, the growth of various kinds of bacteria is reduced. be able to.

(Embodiment 4) As means for purifying the bath circuit of the bathtub water according to the fourth 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 2 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 2 through the switching valve 11, the circulation pump 5, the return pipe 4, and the return path of the adapter 3, and (b) the forward pipe path 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 passes or bypasses the passage 16, the upper going passage 15, the switching valve 13, the filtration tank 6, the switching valve 14, the going pipe 8, the passing passage of the adapter 3, and two passages for supplying to the bathtub water 2. And means for passing residual chlorine-containing water to the bathtub water 2 include (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.
It is a combined combined water flow means such as simultaneous water flow to the outgoing pipe passage.

In the water passing means, (b) the heating source 9 in the passage pipe passage, the outlet from the heating source 9 to the upper passage 15 and 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, which are likely to be deposited on each connection unevenness component of the water circuit, can be reduced or cleaned by high-temperature water, and can be cleaned or reduced by water-flowing power. Has a synergistic effect with sterilization and 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 by passing water power, wash and purify, and sterilize and purify from residual chlorine containing water containing residual chlorine. As a means for making the sterilization and purification by the residual chlorine-containing water more effective, the water is repeatedly passed through the (a) return pipe passage and (b) the forward pipe passage or (4).
Preferably, water is simultaneously passed through (a) the return pipe passage and (b) the outgoing pipe passage. As described in detail above, it is preferable to pass the residual chlorine-containing water through at least the (a) return pipe passage of the water circuit that cannot be pasteurized.

(Embodiment 5) Purification of a bathtub water circuit according to Embodiment 5 of the present invention will be described based on the simultaneous water passage and residence mode shown in FIG. In FIG. 7, the circulation pump 5 is turned off and stopped by the signal of 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 4), water is simultaneously passed through the (a) return pipe passage and (b) outgoing pipe passage until the set time is reached, and when the set time is reached, the water supply valve 19 is turned off to stop the water flow. 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. By this retention time, various bacteria in the water circuit can be brought into contact with the residual chlorine-containing water, and the sterilizing and purifying effect can be increased and ensured.

Next, the retention set 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. 8 shows the results of the sterilization evaluation performed by the present inventors. The sterilization evaluation conditions in FIG. 8 are as follows: (1) Water sample volume: 500 ml,
(2) Water temperature: 20 ° C., (3) Initial general bacterial count: 5.00
(4) Residual chlorine concentration: 0,0.
The test was performed under various conditions of 1, 0.5 and 2 ppm.

As shown in FIG. 8, the residence time for reducing the number of general bacteria to 100 or less, which is the standard for 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 6) Purification of a water circuit of bathtub water according to Embodiment 6 of the present invention will be described with reference to FIGS.

In FIG. 9, when the circulating pump 5 is turned off and stopped by a signal from 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 water is supplied to a preset high set temperature. 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. While reducing the adhesion of the scale deposited on the water circuit by the retention time and the retained hot water,
Various bacteria can be brought into contact with the residual chlorine-containing water to further enhance and ensure the sterilizing and purifying 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 embodiments, as the repeated passage of water, in particular, by passing cold water (atmospheric temperature level water temperature) for a certain period of time after passing high-temperature water, the durability of the components of the water circuit and the risk of burns are reduced. The cooling is performed in consideration of prevention and the like.

Next, high-temperature sterilization is to sterilize by utilizing the property that various sterilizations are weak 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. 10 shows the results of the high-temperature sterilization evaluation performed by the present inventors. The high-temperature sterilization evaluation conditions in FIG. 10 are as follows: (1) Water sample amount: 100 ml, (2)
5,000,000 pieces / ml were put in a beaker, and a thermocouple immersed in the sample was heated in a microwave oven, and the test was performed under the conditions of water temperature: 50, 55, 60, 65, and 70 ° C. The above-mentioned heating temperature is the maximum temperature of the temperature rise, the tolerance 2
deg, and kept in a constant temperature water bath for the holding time. The holding time is the maximum temperature at which the temperature rises, with a tolerance of 2 de.
g.

As shown in FIG. 10, a heating temperature of 55 ° C. or more and 5 minutes or more is required to reduce the number of general bacteria to 100 cells / ml or less based on tap water. Also, 60 ° C
When the temperature reaches 60 ° C., almost 100% high-temperature sterilization and purification can be performed.

(Embodiment 7) Purification of a water circuit of bathtub water according to Embodiment 7 of the present invention will be described.

The water supply valve 19 is turned on in response to a signal from the control section, and tap water used in ordinary households is set for a predetermined time or a fixed amount as residual chlorine-containing water. By simultaneously passing water through the outgoing water circuit, a purification method excellent in convenience and economy can be achieved.

[0058]

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. Means for manually heating bath water to the set temperature by the source and means for automatically heating to the set temperature at regular intervals during natural standing, automatically draining bath water and bath water at regular intervals for a fixed time or amount First, by providing a means for passing residual chlorine-containing water, high-temperature water flows manually from the outlet of the heating source to the outlet of the adapter attached to the bathtub, and high-temperature sterilization and purification of various bacteria in the water circuit passage, In addition, the water circuit can be automatically reheated at regular time intervals during natural standing, sterilized by high-temperature sterilization and re-heated, and the water circuit can be constantly and cleanly cleaned by manual heating and automatic heating. In addition, during the natural standing, by automatically purifying for a certain time or a certain amount every certain time or for a certain amount, dirt and various bacteria which are dirt components of the drainage passage of the water circuit, and by passing residual chlorine-containing water, By cleaning and purifying the dirt components such as various kinds of bacteria and the residual chlorine disinfection and purification, the water circuit can always be kept clean. And always clean the water circuit,
Keeping it clean allows more than one person to bathe continuously and use the bathtub water continuously.

Further, by means of automatically draining water for a certain period of time or a certain amount after every certain period of time after draining, the dirt components in the drain passage are drained and purified. By washing and purifying the components and disinfection and purification of residual chlorine, the water circuit can be kept even more clean.

Further, the ordering means for automatically draining water for a fixed time or a fixed amount at a fixed time, then heating at a set temperature at a fixed time, and passing a fixed time or a fixed amount of residual chlorine-containing water at a fixed time, The energy consumption of the heating source can be reduced, and the temperature of the bathtub water can be reduced faster and the growth of various bacteria can be reduced.

In addition, any one of the following types of water can be used: one-way or one-way or one-way or one-way or one-way or one-way or one-way combined. By the water means, the water circuit can be intensively or reliably purified.

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

Further, by repeatedly passing cold water 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 concavo-convex structure 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 drainage and water passage modes of the bathtub apparatus according to the second embodiment of the present invention.

FIG. 6 is a flowchart showing drainage, heating, and water passage modes of the bathtub apparatus according to the third embodiment of the present invention.

FIG. 7A is a configuration diagram of a water circuit of a bathtub apparatus according to a fifth embodiment of the present invention. FIG. 7B is a flowchart showing a simultaneous water supply and stop mode of the circuit.

8A is a diagram showing the sterilization evaluation effect of the bathtub apparatus according to the fifth embodiment of the present invention. FIG. 8B is a diagram showing the same sterilization evaluation effect.

9A is a configuration diagram of a water circuit of a bathtub apparatus according to Embodiment 6 of the present invention. FIG. 9B is a flowchart showing a high-temperature residence mode of the water circuit.

10A is a diagram showing the high-temperature sterilization evaluation effect of the bathtub apparatus according to the sixth embodiment of the present invention. FIG. 10B is a diagram showing the high-temperature sterilization evaluation effect.

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

[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 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 Drainage pipe 19 Water supply valve 20, 21 Purification judgment plate part 22 Purification judgment plate

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI C02F 1/50 540 C02F 1/50 540B 550 550H 560 560A 560Z 1/76 1/76 A F24H 1/00 302 F24H 1/00 602A (72) Inventor Tetsuro Aoki 1006 Kadoma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (72) Inventor Tatsushi Iwamoto 1006 Odaka Kadoma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd.

Claims (9)

[Claims] 1. A circulating pump provided in a part of a water circuit for circulating bath water, a filtration tank for filtering the bath water, an adapter connecting the bath tub and the water circuit, and a water circuit containing residual chlorine-containing water. A water supply unit that supplies water at regular intervals, a heating unit that heats at least one of the residual chlorine-containing water or bath water supplied from the water supply unit, and automatically reaches a set temperature at regular intervals while bath water is left standing in nature. A bathtub device provided with automatic heating means for heating and drainage means for automatically draining bathtub water via a water circuit at regular intervals. 2. The bathtub apparatus according to claim 1, wherein after the bathtub water is drained by the drainage means, the residual chlorine-containing water is supplied to the bathtub from the water supply unit via a water circuit. 3. The bathtub according to claim 1, wherein after the bathtub water is drained by the drainage unit, the bathtub water is heated to a set temperature by the automatic heating unit, and the water supply unit supplies the bathtub with residual chlorine-containing water through a water circuit. apparatus. 4. A switching valve for switching a method of supplying water from a water supply unit to a water circuit is provided, and when the residual chlorine-containing water is supplied from the water supply unit to the water circuit, the switching valve is switched to a return side or a forward side. 4. The bathtub apparatus according to any one of the above items 3. 5. The method according to claim 1, wherein after the residual chlorine-containing water supplied from the water supply section reaches the circulation adapter via the water circuit, the water supply is abolished, and the residual chlorine-containing water stays in the water circuit for a certain period of time. 5. The bathtub apparatus according to any one of the above items 4. 6. The bathtub apparatus according to claim 1, further comprising a heating means for heating the residual chlorine-containing water. 7. The bathtub apparatus according to claim 5, 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. 8. The bathtub apparatus according to claim 6, wherein the temperature of the residual chlorine-containing water heated by the heating means is set to 55 ° C. or higher. 9. The bathtub apparatus according to claim 1, wherein the residual chlorine-containing water supplied from the water supply section is used as tap water.