JP2000093970A - Water cleaning apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To clean water by physical cleaning system and to efficiently and stably generate a chlorine compd. by feeding chlorine ion and to perform sterilization of water in relation to cleaning of water. SOLUTION: In a circulation flow path 9, a circulation means 12 for circulating water, an agglomerating means 13 for agglomerating suspended substances in water, a filtration means 14 for filtering the suspended substances in water, a chlorine ion feeding means 16 for feeding chlorine ion to a chlorine compd. feeding means 15 are provided and the chlorine compd. feeding means 15 electrolyzes the fed chlorine ion under retained condition and after chlorine compd. such as hypochlorous acid are formed, they are mixed into the circulation flow path. It is possible thereby to obtain stable sterilization effect and to decrease amt. of chlorine ion to be fed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water purifier which purifies and sterilizes aquarium water, such as bath water in a bathtub, so that it can be reused. Related to the device.

[0002]

2. Description of the Related Art A conventional water purifying apparatus of this kind is disclosed in
The one described in JP-A-81280 was common. As shown in FIG. 8, this water purification apparatus was provided with a pump 2 and a heater 3 in a circulation path 1 and a purification means 4 in which microorganisms were propagated inside. Furthermore, a bypass 5 connecting the upstream and downstream of the purification means 4 was provided, and a sterilization means 6 for producing a chlorine compound such as hypochlorous acid was provided in the bypass 5. Further, by the operation of the pump 2, the water 7 in the bathtub 8 is sent from the circulation channel 1 through the heater 3 to the purifying means 4 and the sterilizing means 6 of the bypass path 5.
It is configured to remove suspended substances in water and organic substances by the action of microorganisms propagated therein.

Further, in order to prevent the microorganisms propagated in the purifying means 4 from being killed, a bypass 5 is provided, and a sterilizing means 6 is provided on the bypass 5 to generate residual chlorine.
The generated residual chlorine is mixed with the water in the circulation channel 1 downstream of the purifying means 4 to purify and sterilize the water without killing the microorganisms present in the purifying means 4. Then, the concentration of residual chlorine generated in the sterilizing means 6 in the water is adjusted to 0.5 to 1.0 ppm which does not affect the purifying means 4.

As the sterilizing means 6 used here, an electrolyzer disclosed in Japanese Patent Application Laid-Open No. 56-31489 is used. There is a non-diaphragm type as disclosed in JP-A-61-283391. In this method, a pair of electrodes is provided inside an electrolyzer, and a current is applied between the electrodes to oxidize chlorine ions in water to generate a chlorine compound such as hypochlorous acid. In this method, a pair of electrodes is provided in an electrolyzer, and a current or a voltage is applied between the electrodes to oxidize chlorine ions in water to generate a chlorine compound such as hypochlorous acid.

[0005]

However, in the conventional water purification apparatus shown in FIG. 8, microorganisms are propagated in the purification means, and the microorganisms purify organic substances and the like dissolved in bath water. The concentration of chlorine compounds generated by the sterilizing means is not affected by microorganisms in the purifying means.
It was necessary to make the concentration 5 ppm to 1.0 ppm or less. Since the chlorine compound concentration cannot be increased as described above, there is a problem that the bactericidal ability of bacteria in water is limited.

Further, an electrolyzer as an electrolysis means generates a chlorine compound such as hypochlorous acid by electrolyzing chloride ions in water. Since bath water contains ammonia and organic substances that consume chlorine compounds, there has been a problem that the electrolysis efficiency is reduced. In other words, in practice, it has only the ability to make the chlorine compound concentration 0.1 to 0.2 ppm, and it is necessary to supply a substance containing chlorine ions such as salt to the bathtub in order to obtain stable electrolysis efficiency.
However, in this case, manual maintenance was required.

[0007]

The water purifying apparatus of the present invention comprises:
Circulating means for circulating water in the circulation channel, aggregating means for aggregating suspended substances in water, filtering means for filtering suspended substances in water, and chlorine ion supplying means for supplying chlorine ions to chlorine compound supplying means The chlorine compound supply means electrolyzes the supplied chlorine ions in a stagnant state, generates a chlorine compound such as hypochlorous acid, and then mixes the chlorine ions into the circulation channel.

According to the above invention, dirt such as suspended substances in water is aggregated by the metal hydrate generated by the aggregation means, the particle diameter is increased, and the aggregate is filtered by the filtration means, whereby water is removed. Perform purification. For this reason, it becomes possible to remove very small dirt and organic matter such as dead bacteria. Furthermore, since the physical purification method using the aggregating means is employed, it is not necessary to suppress the supply amount of the chlorine compound supplied as compared with the microorganism purification method, and a sufficient sterilizing effect can be obtained. In addition, the chlorine compound supply means can efficiently generate a high concentration chlorine compound by electrolyzing water containing high concentration chloride ions supplied by the chlorine ion supply means in a stagnant state. Here, since the chlorine ion supply means only needs to supply chlorine ions to the chlorine compound supply means, the amount of chlorine ion addition is small as compared with the case where the chlorine ions are supplied to the bathtub. For this reason, it is possible to reduce the storage amount of the chloride ion (for example, salt) solution, and it is possible to perform effective sterilization without replenishing the chloride ion solution for a long time.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION A water purifying apparatus according to the present invention comprises a circulating means for circulating water in a circulation flow path, a flocculating means for flocculating suspended substances in water, and a filtering means for filtering suspended substances in water. A chlorine ion supply means for supplying chlorine ions to the chlorine compound supply means is provided, and the chlorine compound supply means electrolyzes the supplied chlorine ions in a stagnant state to generate a chlorine compound such as hypochlorous acid. It is mixed with the circulation flow path.

[0010] Then, dirt such as suspended substances in water is aggregated by the metal hydrate generated by the aggregation means, and the particle diameter is increased.
By filtering and removing the aggregate by a filtration means, it becomes possible to remove very small dirt such as dead bacteria and organic substances. Further, a chlorine compound supply means for generating a chlorine compound by electrolyzing water and a chlorine ion supply means for supplying chlorine ions to the chlorine compound supply means are provided, and chlorine ions are supplied only to the chlorine compound supply means and the chlorine ion is supplied. Is electrolyzed in a stagnant state, so that a high-concentration chlorine ion solution is electrolyzed, thereby increasing the electrolysis efficiency. Also, by supplying the chlorine ion supply means only to the chlorine compound supply means, the amount of chlorine ion addition can be reduced,
The storage amount of the chloride ion (eg, salt) solution can be reduced, and effective sterilization can be performed without replenishing the chlorine ion solution for a long time.

The chlorine compound supply means is configured to electrolyze a mixed solution of water supplied from the water supply means and chlorine ions supplied from the chlorine ion supply means in a stagnant state.

[0012] Then, residual chlorine is generated by the chlorine compound supply means, but not from water containing organic substances or reducing substances consuming chlorine, such as bath water, but from water supply means (for example, tap water or a water heater). By electrolyzing water, a high concentration of chlorine compounds can be generated in a short time. For this reason,
The production efficiency is improved, and the supply amount of chlorine ions can be reduced.

Further, the chlorine compound supply means is operated in a temperature range of 5 to 45 ° C. When electrolysis is performed as the chlorine compound supply means, when the water temperature exceeds 45 ° C., the residual amount of the chlorine compound decreases sharply due to thermal decomposition and the like. Generation efficiency decreases. For this reason, the amount of generation is stable.
By performing at 5 ° C., the generation efficiency of chlorine can be improved, and the sterilization performance can be improved.

According to a fourth aspect of the present invention, in the water purifying apparatus, the chlorine compound generated by the chlorine compound supply means is mixed into the circulation flow path after the operation of the aggregating means and mixed into the circulation flow path.

By supplying a chlorine compound to the bath water from which organic substances and bacteria in the bath water have been removed by coagulation, the consumption of chlorine is suppressed and an efficient sterilizing effect is obtained.

Further, a first valve is provided in the circulation flow path to form a closed loop circulation circuit of the water tank and the chlorine compound supply means,
The chlorine compound generated by the chlorine compound supply means does not pass through the aggregation means and the filtration means for a predetermined time.

Since the bath and the chlorine compound supply means are closed loop, and the bath water supplied with the chlorine compound does not pass through the flocculation means and the filtration means for a certain period of time, residual chlorine due to organic substances and bacteria accumulated in the filtration means and the like. Consumption can be prevented. For this reason, efficient sterilization becomes possible.

Further, a second valve and a third valve are provided in the circulation channel to remove aggregates deposited on the filtration means by backwashing, and then the chlorine compound generated by the chlorine compound supply means is supplied to the circulation channel. Is mixed in.

[0019] Then, after removing the agglomerates deposited on the filtration means consuming the chlorine compound by backwashing, the chlorine compound is supplied to the water tank through the circulation channel, so that the consumption of the residual chlorine is suppressed and the sterilization is performed efficiently. Becomes possible.

Further, a chlorine compound detecting means for detecting the residual chlorine concentration of the aquarium water is provided, and the chlorine compound supplying means is controlled in accordance with an output signal of the chlorine compound detecting means.

Since the amount of the chlorine compound supplied can be controlled in accordance with the concentration of the chlorine compound in the bathtub, excessive supply is suppressed and there is no effect on the human body and skin. Further, when chlorine is consumed and the concentration is low, sufficient sterilization becomes possible by supplying the chlorine to a predetermined value.

Further, a dirt detecting means for detecting dirt of bathtub water is provided, and the aggregating means and the chlorine compound supplying means are operated in accordance with an output signal of the dirt detecting means to supply the generated chlorine compound to the circulation channel. Is what you do.

The turbidity of the bathtub water is detected by a turbidity meter which detects the turbidity of the bath water as a dirt detecting means, and the aggregating means is controlled in accordance with the degree of dirt. By mixing the chlorine compound generated by the chlorine compound supply means into the circulation channel, the consumption of chlorine is suppressed, and efficient and sufficient sterilization becomes possible.

[0024]

An embodiment of the present invention will be described below with reference to the drawings. As an embodiment, a case where a bathtub is used as a water tank will be described.

(Embodiment 1) In FIG. 1, reference numeral 8 denotes a bathtub. The circulation flow path 9 is a flow path that circulates bathtub water from a suction port 10 that sucks bathtub water from the bathtub 8 to a discharge port 11 that discharges bathtub water into the bathtub 8. Further, the circulation means 12
Is a pump for circulating bath water in the circulation channel 9. The aggregating means 13 is composed of an aluminum electrode capable of eluting a metal hydrate into water and a stainless steel main body (not shown). At 14 purify the bath water. Further, the chlorine ion supply means 16 supplies chlorine ions to the chlorine compound supply means 15, and the chlorine compound supply means 15 generates a chlorine compound such as hypochlorous acid by electrolyzing the supplied chlorine ions. At this time, the chlorine compound supply means 1
5 electrolyzes water supplied with chlorine ions in a stagnant state to generate chlorine compounds. Thereafter, the generated chlorine compound is mixed into the circulation circuit 9 and supplied to the bath 8. Further, a heater 17 is provided in the circulation channel 9 to keep the temperature of the bath water constant.

Next, the operation and the operation will be described. The bathtub water flows into the circulation channel 9 and is guided to the aggregating means 13. The aggregating means 13 is composed of an aluminum electrode and a stainless steel main body (not shown) capable of eluting a metal hydrate into water, and eluting aluminum ions into water by electrolysis using the electrode as an anode and the main body as a cathode. I do. The eluted aluminum ions are immediately converted into aluminum hydroxide, a metal hydrate, in water, and the aluminum hydroxide reacts with the suspended substance in the water to form aggregates, thereby increasing the particle size of the suspended substance. can do. The bath water is purified by removing the suspended substance having the increased particle diameter by the filtering means 14 (not shown).

Further, the chlorine ion supply means 16 stores a solution containing chloride ions and supplies a predetermined amount to the chlorine compound supply means 15. In this embodiment, a chemically stable salt solution (NaCl solution) was used as the solution containing chloride ions.
The chlorine compound supply means 15 is constituted by an electrolytic cell for electrolyzing an aqueous solution, and has at least a pair of electrodes inside (not shown). The electrode used here has a base material made of titanium or a titanium alloy, and has a surface coated with a precious metal such as platinum or iridium.

The chlorine compound supply means 15 is supplied with chlorine ions from the chlorine ion supply means 16 and then electrolyzes a solution containing chloride ions in a stagnant state to produce a chlorine compound such as hypochlorous acid to produce sterilized water. Generate This sterilized water is supplied to the bathtub 8 via the circulation channel 9, and the bathtub water is sterilized and purified. Here, the reason why chlorine ions are added by the chlorine ion supply means 16 is to obtain a chlorine compound efficiently and.

The electrolysis is performed as the chlorine compound supply means 15. The principle of this electrolysis is that when a current is passed between the electrodes, chlorine ions are oxidized at the anode as shown in equation (1). As a result, chlorine gas (Cl ₂ ) is generated.

2Cl ⁻ → Cl ₂ + 2e (1) The generated gas dissolves in water to produce hypochlorous acid (HClO) which has a bactericidal action as shown in (Chemical Formula 2).

Cl ₂ + H ₂ O → HClO + HCl (2) Therefore, as shown in the formulas (1) and (2), the presence of chloride ions is an essential condition for the generation of hypochlorous acid, and the higher the concentration of chloride ions, the higher the concentration. The more hypochlorous acid is generated, the greater the amount. From this fact, supplying chlorine ions can generate a high concentration of hypochlorous acid in a short time, improving the electrolysis efficiency and increasing the amount of supplied chlorine ions, thus increasing the concentration of chlorine ions contained in tap water. And the electrolysis efficiency can be stabilized. Further, when chlorine ions are supplied, the conductivity increases and the variation in the conductivity of city water in the region can be absorbed, so that electrolysis can be performed at a low voltage.

However, when the chlorine ion supply means 16 and the chlorine compound supply means 15 for supplying chlorine ions are provided in series in the circulation channel 9, the structure is such that chlorine ions are supplied to the bathtub 8 and the entire circulation system. , A large amount of chloride ions was required.

In the configuration in which chlorine ions are supplied to the chlorine compound supply means 15, the supply amount of chlorine ions can be small,
In addition, although it varies slightly depending on the way of use, maintenance for about 5 years can be omitted.

Here, the case where the chlorine ion supply means 16 and the chlorine compound supply means 15 are provided in series in the circulation channel 9 and the case where chlorine ions are supplied only to the chlorine compound supply means 15 of the present invention, Table 1 shows a comparative example in which a chlorine compound was generated by decomposition. The water used here did not contain chlorine ions like well water.

[0035]

[Table 1]

The comparison items are the required amount of salt (supposed to be 5 years) as a chloride ion supply substance, the concentration of chloride ions in the bathtub and the electrolytic cell during electrolysis, the concentration of residual chlorine generated, the number of bacteria, and the electrolysis voltage. The volume of this bathtub 8 is 200 l,
The volume of the chlorine compound supply means 15 was 300 ml. Further, an electrode as an operating condition of the chlorine compound supply means 15,
The electrolysis conditions were the same, and the applied current was 1A. Furthermore, the number of bacteria is 230,000 CF each before supplying chlorine compounds.
U / ml and 210,000 CFU / ml, and there was no significant difference between the two, and there was no problem. Table 1 shows the number of bacteria 1 hour after the supply. In addition, CFU is a colony forming unit (microbial formation unit).

The results also show that the water purification apparatus of the present invention is effective in terms of electrolysis efficiency, salt maintenance, control, and sterilization.

FIG. 2 shows the electrolysis temperature and the chlorine compound concentration of the electrolysis means 15 used in this embodiment as the chlorine compound supply means. At this time, a constant current was applied at 2 A for 2 hours, and FIG. 2 shows the chlorine compound concentration at that time.

As shown in FIG. 2, when the water temperature is 5 to 45 ° C., the concentration of the generated chlorine compound is almost stable.
It turns out that it decreases sharply when it exceeds. That is, when electrolysis is performed as the chlorine compound supply means 15, it is found that the generated chlorine compound strongly depends on the electrolysis temperature, and it is understood that 5 to 45 ° C. is the most optimal electrolysis temperature. Therefore, the bath water electrolyzed in the water purification apparatus of the present invention is circulated in the circulation flow path 9 so that the temperature of the bath water becomes 5 to 5.
After the temperature was lowered to the range of 45 ° C., chlorine was generated by electrolysis, and then the temperature was again heated and maintained by the heater 17 and sent into the bath 8. As a result, it was possible to efficiently generate residual chlorine and to minimize power consumption.

(Embodiment 2) FIG. 3 is a block diagram showing a water purification apparatus according to Embodiment 2 of the present invention.

The second embodiment differs from the first embodiment in that the water supply means 1 for supplying water to the chlorine compound supply means 15
8 (for example, a tap water / water heater), the chlorine compound supply means 15 electrolyzes water supplied from the water supply means 18 and the chlorine ion supply means 16, and converts the supplied chlorine ions into chlorine compounds which are chlorine compounds. Is generated.

Bath water is sterilized and purified by this chlorine compound, that is, residual chlorine. Usually, bath water contains chlorine-consuming organic substances, reducing substances (Fe, Mn, Zn, etc.) and bacteria. Even if a compound is generated, it is consumed before being mixed into the circulation channel 9 and the bath 8, resulting in low chlorine compound generation efficiency. However, in the water purification apparatus of the present invention, since the chlorine compound supply means 16 generates the chlorine compound in the water in which the substance is not mixed by the water supply means 18, the chlorine compound before mixing into the circulation channel 9 and the bathtub 8 is used. The compound consumption is suppressed and the production efficiency is high. Furthermore, tap water or the like usually contains about 1 ppm of a chlorine compound for sterilization, and this chlorine compound can also be used for sterilization and purification, so that the sterilization ability is also increased.

In Example 1, the bath water was electrolyzed.
The chlorine compound concentration in the chlorine compound supply means 15 is about 260
In the present embodiment, the water from the water supply means 18 is electrolyzed, so that the concentration of the chlorine compound in the chlorine compound supply means 15 is 330 pp.
m, and the chlorine compound concentration in the bathtub was also 0.4 ppm.

Further, the number of general bacteria was 250,000 CFU / ml before supplying the produced chlorine compound, but was reduced to 1100 CFU / ml.

That is, since the concentration of the produced chlorine compound was high, the bactericidal effect was also high. From this, by supplying water containing no substance consuming the chlorine compound to the chlorine compound supply means 15 by the water supply means 18, the electrolysis efficiency was increased and the sterilization effect was also improved.

Further, by mixing the chlorine compound generated by the chlorine compound supply means 15 into the bath water purified after the aggregation by the flocculation means 13, the sterilization performance is improved. That is, the suspended substance in the water is removed by the aggregating means 13 and the filtering means 14, and the chlorine compound generated by the chlorine compound supplying means 15 is mixed with the purified water, whereby the chlorine compound used for purposes other than sterilization is removed. Consumption can be suppressed. Table 1 and the values described above indicate that the chlorine compound generated by the chlorine compound supply means 15 after aggregation was supplied to the bath 8. However, when residual chlorine generated before aggregation under the same conditions was supplied, the chlorine compound supply means 15 When about 330 ppm of the generated chlorine compound is returned to the circulation channel 9, it is consumed by organic matter, dirt, bacteria, and the like contained in the bathtub water.
ppm.

Therefore, a substance that consumes a chlorine compound such as an organic substance in bath water is removed by the aggregating means 13 and the filtering means 14, and then the chlorine compound generated by the chlorine compound supplying means 15 is supplied to the bath 8 by the chlorine compound supplying means. Sterilization becomes possible.

(Embodiment 3) FIG. 4 is a block diagram showing a water purification apparatus according to Embodiment 3 of the present invention.

The components having the same reference numerals as in the first embodiment have the same configuration, and the description will be omitted. The third embodiment is different from the first and second embodiments in that the bath 8 and the chlorine compound supply means 1 are different.
A first valve 19 is provided in the circulation flow path 9 so as to form a closed loop circulation circuit of No. 5 so that water containing a chlorine compound does not pass through the aggregation means 13 and the filtration means 14 for a predetermined time.

Next, the operation and operation will be described.
By providing the first valve 19 to the aggregating means 13
When the filtering means 14 is in operation, the bath water is supplied to the tub 19 shown in FIG.
It flows in the direction of -a, passes through the outlet 11 and enters the bathtub 8 to circulate.

Next, after the aggregating means 13 and the filtering means 14 operate for a predetermined time, the first valve 19 forms a closed loop circulation circuit of the bathtub 8 and the chlorine compound supply means 15, and the bathtub water is 19-b shown in FIG. In such a direction as not to pass through the aggregating means 13 and the filtering means 14 for a predetermined time. The chlorine compound generated by the electrolysis in the stagnant state by the chlorine compound supply means 15 is supplied into the water in the formed closed loop circulation circuit to sterilize and purify the bath water.

The open loop (19-a) and the closed loop (19-a)
The chlorine compound concentration present in the bath in b) was measured. As a result, it was 0.4 ppm in the open loop, but was about 0.5 ppm in the case of the closed loop of this embodiment.

This is because the turbid substance and the like removed from the bathtub water are present in the flocculating means 13 and the filtering means 14, and the chlorine compound generated by the chlorine compound supplying means 15 also circulates through the flocculating means 13 and the filtering means. It is consumed by things. However, as in this embodiment, the first valve 19
When a closed loop was formed to provide a closed loop to suppress the consumption of residual chlorine, the concentration of residual chlorine in the bathtub was increased about 1.3 times, and the sterilizing effect was also improved.

(Embodiment 4) FIG. 5 is a block diagram showing a water purification apparatus according to Embodiment 4 of the present invention.

The components having the same reference numerals as in the first embodiment have the same configuration, and the description is omitted. The third embodiment is different from the first, second and third embodiments in that a second valve 20 is provided.
First valve 19, second valve 20, third valve 2
After removing the agglomerates deposited on the filtration means 14 by backflow washing under the operation control of 1, the chlorine compound supply means 15
Is that the chlorine compound generated by the above is supplied to the bathtub 8.

Next, the operation and operation will be described.
3 and the operation of the filtration means 14, the bathtub water is 1 shown in FIG.
It flows in the direction of 9-a and enters the bathtub 8 through the outlet 11 and is circulated. Next, after the aggregation means 13 and the filtration means 14 operate for a predetermined time, the water flows in the 20-b direction by the first valve 19 and the second valve 20. At this time, the third
The valve 21 is opened, and the filtration means 14 is backwashed by the circulation circuit, and the accumulated turbid substance can be discharged. Thereafter, the first valve 19, the second valve 20, and the third valve 21 are returned to their original positions, the bath water is circulated in the 20-a direction, and the chlorine compound generated by the chlorine compound supply means 15 is circulated in the circulation flow path. 9 to sterilize and purify.

Also in this case, the consumption of chlorine compounds is suppressed,
As in Example 3, an efficient bactericidal effect was obtained.

(Embodiment 5) FIG. 6 is a block diagram showing a water purification apparatus according to Embodiment 5 of the present invention. The components having the same reference numerals as those in the first embodiment have the same configuration, and the description will be omitted.

The fifth embodiment is different from the first to fourth embodiments in that a chlorine compound detecting means 22 for detecting the concentration of a chlorine compound in bathtub water is provided, and a chlorine compound detecting means 22 is provided in accordance with an output signal of the chlorine compound detecting means 22. In this configuration, the operation time of the supply unit 15 is controlled.

Next, the operation and action will be described. The chlorine compound generated by the chlorine compound supply means 15 is mixed into the circulation channel 9 to decompose and sterilize organic matter in the bathtub water. As described in Example 1, the sterilizing ability depends on the concentration of the chlorine compound contained in the bath water, and the higher the higher, the higher the sterilizing effect. However, in microbial purification, the chlorine compound concentration is set to 0.5
Since it is necessary to suppress the concentration to within 1.0 ppm, there is a limit to the sterilization ability. However, the physical purification system of the present invention has no upper limit, so that a sufficient sterilization effect can be obtained. However, since the bathtub water actually contains a substance that consumes a chlorine compound, even if the chlorine compound generated by the chlorine compound supply means 15 is supplied, it is immediately consumed, and 1 pp at the time of supply is supplied.
m, it is immediately consumed and the concentration of chlorine compounds in the bath water drops to 0.1 to 0.2 ppm. In addition, the consumption rate varies depending on the substance that consumes a chlorine compound such as an organic substance contained in the bathtub water, and therefore varies depending on the state of the bathtub water, so that stable sterilization cannot be performed. For this reason, it is necessary to maintain the optimal chlorine compound concentration,
The chlorine compound concentration in the bathtub shown in FIG. 6 was detected by the chlorine compound detection unit 22, and the chlorine compound supply unit 15 was controlled such that the chlorine compound concentration in the bathtub water became a predetermined value. In the present embodiment, an amperometric (current titration) measuring device was used as the chlorine compound detecting means 22. In the present embodiment, chlorine ions are electrolyzed in a stagnant state by the chlorine compound supply means 15 and the consumption rate of the chlorine compound after supplying the generated chlorine compound to the bath 8 is detected. Then, the chlorine compound is again generated and supplied by the chlorine compound supply means 15.

As a result, it is possible to improve the sterilizing / purifying performance and to always have a constant sterilizing ability.

(Embodiment 6) FIG. 7 is a block diagram showing a water purification apparatus according to Embodiment 6 of the present invention.

The third embodiment differs from the first to fifth embodiments in that a dirt detecting means 23 for detecting dirt in bathing water is provided.

The components having the same reference numerals as in the first embodiment have the same configuration, and the description will be omitted. Next, the operation and action will be described. The dirt detecting means 23 detects dirt in the bathtub water, and until the value of the dirt detecting means 23 becomes equal to or less than a specified value, the agglutination means 1
3 was operated, and the chlorine compound generated by the chlorine compound supply means 15 was supplied to the bath 8. Here, a turbidity meter that detects the turbidity of bath water by the light transmittance was used as the dirt detecting means 23. Bath water stains include bacteria (live and dead), organic matter secreted from the human body, ammonia, dirt, and the like. Therefore, the state of bathing water is detected by detecting all of these as turbidity, and the aggregating means 13 is controlled.

Since the operation time of the aggregating means 13 can be controlled in accordance with the degree of contamination of the bath water, the bath water before the supply of the chlorine compound generated by the chlorine compound supply means 15 is always constant. Condition can be kept. As a result, it is possible to suppress the consumption of chlorine other than sterilization due to dirt or the like, so that a sterilizing effect can be obtained more efficiently regardless of the state of bathing water.

In the above embodiment, the case where the bathtub water is circulated and used as the circulating water has been described. However, the present invention is not limited to this case. It may be. When used as washing water or underwashing water, etc., the water may be circulated and purified using a bath tub, or if it does not pose a practical problem, purified immediately in the circulation channel and immediately used. May be. In this case, the spout in the above embodiment becomes the water supply port of the washing machine or the like as it is.

Other than the above, it is needless to say that the present invention can be used for a water purifying apparatus when water is reused for business purposes.

[0068]

As apparent from the above description, the water purifying apparatus of the present invention has the following effects.

(1) A chlorine ion supply means for supplying chlorine ions only to the chlorine compound supply means is provided, and a chlorine compound is generated by the chlorine compound supply means by residence electrolysis, and then returned to the bathtub. The amount of addition can be reduced, and there is no need to replenish the chloride ion solution for a long time. Furthermore, efficient sterilization becomes possible by electrolyzing a solution containing chlorine ions.

(2) Water supply means (for example, water supply and water heater)
By electrolyzing water from the wastewater, the consumption of chlorine other than sterilization can be suppressed, so that the efficiency of chlorine compound generation is improved and the amount of chlorine ions added to the chlorine ion supply means can be reduced.

(3) Since the efficiency of chlorine generation can be improved by operating the electrolysis temperature in the range of 5 to 45 ° C. as the chlorine compound supply means, the supply of excess chlorine ions can be suppressed. Maintenance frequency can be reduced,
And the sterilization performance can be improved efficiently.

(4) The chlorine compound generated by the chlorine compound supply means is mixed into the circulation channel in water from which organic substances and bacteria have been removed after the operation of the flocculation means, thereby suppressing the consumption of chlorine and efficiently sterilizing. The effect was obtained.

(5) A valve is provided in the circulation passage so that a closed loop circulation circuit of the water tank and the chlorine compound supply means can be formed, so that water containing the chlorine compound does not pass through the aggregation means and the filtration means for a predetermined time. It can prevent the consumption of chlorine by organic substances and bacteria etc. deposited on the filtration means, etc.
Efficient sterilization becomes possible.

(6) A third valve is provided in the circulation flow path to remove aggregates deposited on the filtration means by backwashing, and then the chlorine compound supply means is operated to supply the chlorine compound to the water tank. Thus, the consumption of chlorine is suppressed, and efficient sterilization becomes possible.

(7) By controlling the chlorine compound supply means according to the output signal of the chlorine compound detection means for detecting the concentration of the chlorine compound in the aquarium water, stable sterilization can be performed regardless of the state of the aquarium water.

(8) A dirt detecting means is provided to detect dirt in the aquarium water and to control the time for operating the aggregating means according to the degree of dirt. Thereafter, by supplying the chlorine generated by the chlorine compound supply means, it was possible to always obtain a constant purifying / sterilizing effect irrespective of the state of the aquarium water, and at the same time, it was possible to reduce the amount of supplied chlorine ions.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a water purification device according to a first embodiment of the present invention.

FIG. 2 is a characteristic diagram showing a relationship between electrolysis temperature and residual chlorine concentration of the water purification device.

FIG. 3 is a configuration diagram of a water purification device according to a second embodiment of the present invention.

FIG. 4 is a configuration of a water purification device according to a third embodiment of the present invention.

FIG. 5 is a configuration diagram of a water purification device according to a fourth embodiment of the present invention.

FIG. 6 is a configuration diagram of a water purification device according to a fifth embodiment of the present invention.

FIG. 7 is a configuration diagram of a water purification device according to a sixth embodiment of the present invention.

FIG. 8 is a configuration diagram of a conventional water purification device.

[Explanation of symbols]

 Reference Signs List 8 bathtub 9 circulation channel 10 suction port 11 discharge port 12 pump 13 coagulation means 14 filtration means 15 chlorine compound supply means 16 chlorine ion supply means 17 heater 18 water supply means 19 first valve 20 second valve 21 third Valve 22 Residual chlorine detecting means 23 Dirt detecting means

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) C02F 1/50 550 C02F 1/50 550D 550L 560 560F 560Z 1/52 1/52 Z 1/76 1/76 A (72) Inventor Takemi Okeda 1006 Kazuma Kadoma, Kadoma, Osaka Prefecture F-term (reference) 4D050 AA10 AB06 BB04 BB06 BD04 BD06 BD08 CA15 CA16 4D061 AA07 AB01 AB10 AB11 AB15 BA03 BB01 BB04 BB27 BB37 BB37 BD12 4D062 BA17 BA19 BA21 BA28 BB01 CA20 DA09 DC04 EA35 FA23 FA24 FA29

Claims (8)

[Claims] 1. A circulating means for circulating water in a circulation channel, an aggregating means for aggregating suspended matter in water, a filtering means for filtering a suspended substance in water, and supplying chlorine ions to a chlorine compound supplying means. The chlorine compound supply means electrolyzes the supplied chlorine ions in a stagnant state to generate a chlorine compound such as hypochlorous acid, and then mixes the product into the circulation channel. Water purification equipment. 2. The water purification system according to claim 1, wherein the chlorine compound supply means is configured to electrolyze a mixed solution of water supplied from the water supply means and chlorine ions supplied from the chloride ion supply means in a stagnant state. apparatus. 3. The water purifier according to claim 1, wherein the chlorine compound supply means is operated in a temperature range of 5 to 45 ° C. 4. The water purification apparatus according to claim 1, wherein the chlorine compound supply means mixes the chlorine compound generated after the operation of the aggregating means into the circulation channel. 5. A first valve is provided in a circulation flow path to form a closed loop circulation circuit of a water tank and a chlorine compound supply means, and a chlorine compound generated by the chlorine compound supply means passes through the aggregation means and the filtration means for a predetermined time. The water purification device according to any one of claims 1 to 4, wherein the water purification device is not configured. 6. A second valve is provided in the circulation channel to remove agglomerates deposited on the filtration unit by backwashing, and then the chlorine compound generated by the chlorine compound supply unit is mixed into the circulation channel. The water purification device according to any one of claims 1 to 5. 7. The apparatus according to claim 1, further comprising chlorine compound detecting means for detecting a chlorine compound concentration in the tank water, and controlling the chlorine compound supplying means in accordance with an output signal of said chlorine compound detecting means. Water purification equipment. 8. The method according to claim 1, further comprising the step of: detecting dirt in the aquarium water, and controlling the aggregating means and the chlorine compound supplying means in accordance with an output signal of the dirt detecting means. Water purification device.