JP2006097311A - Flush toilet and deodorizing method of flush toilet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flush toilet and its deodorizing method, capable of cleaning and sterilizing a toilet bowl, by decomposing odor, by effectively deodorizing the odor forming the cause of an offensive odor in the toilet. <P>SOLUTION: This flush toilet 8 has a deodorizer 1. This deodorizer 1 has an electrolytic cell equipped with at least a pair of electrodes and storing tap water, an odor sucking means for sucking the odor of the toilet, an odor supply means for supplying the odor sucked by the odor sucking means to the electrolytic cell, an odor adsorbing means capable of adsorbing and releasing the odor, and an odor supply means for supplying the odor released from this odor adsorbing means to the electrolytic cell. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a flush toilet equipped with a deodorization device, and more particularly to a flush toilet capable of cleaning and sterilizing a toilet and a deodorizing method for the flush toilet.

  The odor when using a flush toilet may be insufficient if it is washed away after use, and various deodorizers have been proposed for deodorizing the odor of a flush toilet.

  In Patent Document 1, after the odor of the toilet bowl is sucked by the operation of the blower, the odor is sprayed on the water replenisher to which moisture is adhered, and the malodorous component is dissolved in the moisture of the water catcher, and then discharged into the sewage by the drain pipe. A deodorizing device for discharging is disclosed. However, in such a deodorizing device, it is necessary to provide a drain pipe in the middle part of the toilet drain and sewage, and it is not easy to attach to an existing toilet. There is a problem that pressure loss due to the water replenisher occurs.

In Patent Document 2, sterilized water is supplied to a filter having moisture retention, and the odor component is adsorbed or decomposed by the sterilized water by sucking the odor of the toilet through the filter, and then new sterilized water is supplied. It is disclosed that the filter is washed by supplying it to the filter, and that the toilet bowl is sterilized with this sterilizing water. However, in the method of supplying sterilizing water to such a filter, there is a possibility that the filter may be deteriorated by the sterilizing water, and further, because the filter is moist, the pressure loss is large and the intake load of malodorous components increases. was there.
JP-A-3-286052 JP 2000-129747 A

  The present invention effectively deodorizes odors that cause bad odors in flush toilets, decomposes these odors, and further includes deodorizers that can clean and sterilize toilet bowls, and deodorizers in flush toilets It aims to provide a method.

  The flush toilet according to the present invention is a flush toilet comprising a toilet and a flushing means for flushing the inside of the toilet. An electrolyzer in which a pair of electrodes is provided and water is stored, and the pair of electrodes are energized. Power supply, odor suction means for sucking odor of excrement, and odor supply means for supplying the odor sucked by the odor suction means into the electrolytic cell, Electrolytic water is generated in the electrolytic cell by energizing the electrode, and the odor is deodorized by the electrolytic water.

  The flush toilet according to claim 2 is adsorbed to the adsorbing member in the invention of claim 1 by adsorbing the adsorbing member for adsorbing the odor sucked by the odor sucking means and heating the adsorbing member. And a heating means for releasing the odor. The odor released from the adsorbing member is supplied into the electrolytic cell by the odor supply means for deodorization.

  The flush toilet according to claim 3 is the invention according to claim 1 or claim 2, wherein the odor supply means removes the odor from the position below half the height of the electrolytic cell. It is characterized by supplying to.

  The flush toilet according to claim 4 is the invention according to claim 1 to claim 3, wherein the odor is supplied into the electrolytic cell by the odor supply means in a state where electrolytic water is stored in the electrolytic cell. It is characterized by supplying.

  The flush toilet according to claim 5 is provided in the flow path for flowing the water in the electrolysis tank or the electrolyzed water into the toilet in the invention according to claim 1 to claim 4, and the flow path. And a valve for controlling whether or not the water or the electrolyzed water can flow into the toilet.

  The flush toilet according to claim 6 is the flush toilet according to claim 5, wherein the flush means is provided with a flush lever or switch for flowing water into the toilet, and the valve is the lever or switch. It is characterized by being released in conjunction with.

  The flush toilet according to claim 7 further comprises detection means for detecting that the toilet is being used in the invention according to claim 5 or claim 6, and the toilet is being used by the detection means. If it is detected that there is a valve, the valve is opened for a predetermined time every predetermined time.

  A flush toilet according to an eighth aspect is characterized in that in the invention according to the fifth to seventh aspects, a manual switch for opening the valve for a certain period of time is provided.

  The deodorizing method for a flush toilet according to the present invention is a flush toilet that deodorizes by supplying odor of excrement into an electrolytic cell in which water is stored and an electrode pair is provided so that at least a part thereof is immersed in the water. In the deodorization method, electrolyzed water is generated in the electrolytic cell by energizing the electrode pair before and / or during and / or after supplying the odor into the electrolytic cell, and the odor is generated by the electrolytic water. The odor component contained in is decomposed | disassembled.

  The deodorizing method for a flush toilet according to claim 10 is characterized in that, in the invention according to claim 9, the toilet is washed, sterilized and deodorized by flowing the electrolyzed water into the toilet.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to deodorize the odor which causes the bad odor in a flush toilet, this odor can be decomposed | disassembled. Moreover, according to this invention, the toilet bowl of a flush toilet can be wash | cleaned and disinfected.

  Hereinafter, preferred embodiments of the flush toilet of the present invention will be described in detail with reference to the drawings.

  An embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1: has shown the schematic block diagram of the flush toilet 8 provided with the deodorizing apparatus 1 as one Example of this invention.

  In the present embodiment, the flush toilet 8 includes a deodorizing device 1 including an odor adsorbing device 100 and an electrolysis device 20, a toilet 2, a toilet seat 3, a water tank 4 for washing the toilet 2, and the water tank 4. A water supply pipe 5 connected to a water pipe (not shown) for supplying water to the water and a hot water cleaning device 30 equipped with a hot water tank (not shown) and the like are included.

  The odor adsorbing device 100 includes a disc-shaped adsorbing member 11 that is rotated at a predetermined speed, and an odor in the toilet bowl 2 and an inside of the toilet room via an odor passage 15 for circulating air containing odor to the adsorbing member 11. With the electric heater 13 for heating the adsorbing member 11 to + 60 ° C. to + 120 ° C., the fan 12 for air intake through which the odor is taken in through the odor suction port 29 and the odor suction port 29A, and flows. A circulation path 14 for circulating the heated odor while circulating through the adsorption member 11 in the regeneration unit 14A close to the adsorption member 11, a circulation fan 16 provided in the circulation path 14, and a circulation path 14 is composed of a diaphragm portion 17 and the like provided in 14.

The adsorbing member 11 is made of, for example, an odor adsorbent such as zeolite, and adsorbs and collects the odor of the flush toilet distributed through the odor channel 15 to the adsorbing member 11. Here, the odor to be removed by the present invention is hydrogen sulfide (H ₂ S), methyl mercaptan (CH ₃ SH), ammonia (NH) which is emitted from excrement such as feces and vomiting and drifts in the toilet and the toilet room. ₃ ) etc.

  The adsorbing member 11 is rotated at a predetermined speed in the direction of the arrow in FIG. In this regenerating part 14A, air heated by the electric heater 13 and having a high temperature circulates in the circulation path 14, and the part that has reached the regenerating part 14A by this high temperature air is heated to the above-mentioned temperature. The The adsorption member 11 releases the adsorbed odor when heated. The released odor rides on high-temperature air and travels toward the throttle portion 17 in the circulation path 14. Note that the odor adsorbing action of the adsorbing member 11 is regenerated by releasing the odor in the regenerating unit 14A. This is continuously performed as the suction member 11 rotates.

  On the other hand, one end of an intake pipe 18 is connected to the circulation path 14 on the upstream side of the throttle portion 17, and the other end of the intake pipe 18 is connected to a diffuser pipe 26 of the electrolysis apparatus 20 described later. Communication connection is established. In addition, an air pump 19 and a check valve 21 (a direction toward the air diffusion pipe 26 is a forward direction) positioned on the air diffusion pipe 26 side of the air pump 19 are interposed in the intake pipe line 18. The air containing the odor, which is stopped before the throttle portion 17 in the circulation path 14 by the operation of the air pump 19, is taken into the intake pipe 18, and enters the diffuser pipe 26 through the check valve 21. Be sent.

  The electrolyzer 20 is supplied from the electrolyzer 23, a pump 6 for supplying water from the water storage tank 4 or a water pipe (not shown) into the electrolyzer 23 via the supply pipe 7, and the odor adsorber 100. A diffusing pipe 26 for discharging (bubbling) the odor generated into the water in the electrolytic cell 23, at least a pair of electrodes 24 and 25 for electrolysis provided in the electrolytic cell 23, and the water in the electrolytic cell 23 as an outlet An electrolyzed water flow path 27 that is a flow path in the toilet 2 by 28A, a valve 31 that controls the flow of water from the electrolyzer 23 to the electrolyzed water flow path 27, a microcomputer, etc., and a predetermined DC power source In addition to energizing the electrodes 24 and 25 for electrolysis, the operation of a motor (not shown), an air pump 19 and a valve 31 for rotating the fans 12 and 16, the electric heater 13, and the adsorption member 11 is controlled. Consisting of control device 22 and the like.

  Both the electrodes 24 and 25 for electrolysis are comprised by insoluble metal electrodes, such as platinum-iridium type | system | group (Pt-Ir type | system | group), for example, and the mutual distance is 3 mm, for example. In the present invention, the electrode for electrolysis refers to an electrode that is immersed in an aqueous solution as electrolyzed water and contributes directly to electrolysis, and includes a part of the electrode that is directly immersed and contributes directly to electrolysis. Shall be. In the present embodiment, the electrolysis electrodes 24 and 25 are constituted by a pair of electrodes, but a plurality of electrolysis electrodes may be provided in addition to this.

  Moreover, FIG. 10 has shown the schematic block diagram of the warm water cleaning apparatus 30 using the ozone water as an example of the warm water cleaning apparatus 30 of the flush toilet 8 in this invention. The hot water cleaning device 30 includes a shower nozzle 52 and a fountain port 51 for fountain cleaning with respect to a local area, a water channel 56 for supplying fountain water to the fountain port 51, and the water channel 56 and the shower nozzle 52. A heater 50 for heating water to warm water, an electrolysis device 55 for generating ozone water, an electrolysis electrode 53 installed in the electrolysis device 55 and immersed in water flowing in the water channel 56, 54, and a control device 57 that is configured by a microcomputer or the like and has a predetermined DC power source and controls energization of the heater 50 in addition to energization of the electrodes 53 and 54 for electrolysis.

  Among the electrolysis electrodes 53 and 54, the electrolysis electrode 54 serving as an anode is composed of, for example, a platinum-tantalum (Pt-Ta) electrode serving as an electrode for generating ozone, and the electrolysis electrode 53 serving as a cathode is, for example, the above-described one. Such a platinum-iridium-based insoluble metal electrode is used, and the distance between the electrodes is, for example, 6 mm. The platinum-tantalum-based electrode has an intermediate layer containing platinum formed on the surface of a conductive substrate such as titanium, and is further formed of a dielectric such as tantalum oxide or niobium oxide on the surface of the intermediate layer. By using such a platinum-tantalum-based electrode 54 for electrolysis as an anode, even when electrolyzing tap water containing chloride ions, the electrode of hypochlorous acid is used. Generation | occurrence | production can be suppressed and it becomes possible to produce | generate high concentration ozone water.

  With the above configuration, the operation of the flush toilet 8 provided with the deodorizing apparatus 1 in the present embodiment will be described. In this embodiment, it is assumed that tap water is stored in advance in the water storage tank 4 and the electrolytic tank 23 before using the flush toilet. In addition, although it changes with areas and seasons, tap water usually contains about 5 to 200 mg / l of chloride ions for sterilization, and on average about 17 mg / l of chloride ions.

Deodorization mode First, a deodorization mode for deodorizing a flush toilet will be described. When the flush toilet 8 is used and excrement such as urine is excreted in the toilet 2, as described above, odor due to hydrogen sulfide, methyl mercaptan, ammonia or the like is generated in the toilet 2 or the toilet room. Here, the controller 22 detects the use of the flush toilet by means of an odor sensor (not shown) or a seating sensor on the toilet seat 3 (not shown), or a manual switch to operate the fan 12 and a motor for rotating the suction member 11. Is operated to rotate the suction member 11 at a predetermined speed. The air containing the odor in the toilet bowl 2 and the toilet room by the operation of the fan 12 is circulated from the odor suction port 29 and the odor suction port 29A to the adsorbing member 11 through the odor flow path 15, and thereby the sulfidation as the odor component. Hydrogen, methyl mercaptan, ammonia and the like are adsorbed and collected by the adsorbing member 11.

  Such an operation of collecting odors on the adsorbing member 11 is usually performed for a predetermined time, for example, 5 minutes every time the flush toilet is used.

Odor component decomposition mode And when a flush toilet is used a predetermined number of times, for example, three times, the odor is collected a predetermined number of times, and when a certain amount of odor component is collected by the adsorbing member 11, then the odor component decomposition mode Is executed.

  When the odor component decomposition mode is executed, the control device 22 operates the fan 16 and the air pump 19, operates the rotation motor of the adsorption member 11 to rotate the adsorption member 11 at a predetermined speed, and the electric heater 13. Energize to generate heat.

  The adsorbing member 11 that adsorbs and collects odorous components in the deodorizing mode described above eventually reaches the regeneration unit 14A by rotation, and is heated by the high-temperature air heated by the electric heater 13 circulated by the fan 16 there. By being heated in this way, the odor component adsorbed by the adsorbing member 11 is released and goes to the throttle portion 17 of the circulation path 14 together with the high-temperature air. The air containing a large amount of the released odor component is taken into the intake pipe 18 by the air pump 19 and reaches the diffuser pipe 26 provided at the bottom of the electrolytic cell 23 of the electrolyzer 20 through the check valve 21. The air containing a large amount of odor components fed to the air diffuser 26 is bubbled into the water in the electrolytic cell 23 at an amount of 0.1 to 50.0 l / min, preferably 0.5 to 1.0 l / min. Then, it passes between the electrodes 24 and 25 for electrolysis and the periphery thereof as bubbles.

  On the other hand, the control device 22 supplies power to the electrodes 24 and 25 for electrolysis. At this time, the electrolysis electrode 24 to which a positive potential is applied serves as an anode, and the electrolysis electrode 25 to which a negative potential is applied serves as a cathode. Further, the control device 22 may switch the polarities of the electrolysis electrodes 24 and 25 every predetermined time, for example, every 3 minutes. By switching the polarity of the electrolysis electrodes 24 and 25 in this way, the electrolysis electrode 24 becomes a cathode and the electrolysis electrode 25 becomes an anode, and scales such as calcium adhering to each electrode surface can be removed. .

In the electrolytic bath 23 in which the odor component is dissolved, tap water containing about 5 to 17 mg / l of chloride ions is usually stored as described above. Chloride ions release electricity to produce chlorine (reaction formulas (1) and (2)). Thereafter, this chlorine dissolves in water to produce hypochlorous acid (reaction formula (3)). The reaction formulas (1), (2), and (3) are shown below.
NaCl → Na ⁺ + Cl ⁻ (1)
2Cl ⁻ → Cl ₂ + 2e ⁻ (2)
Cl ₂ + H ₂ O → HClO + HCl (3)

  And since the air sent out in the electrolytic cell 23 contacts easily with water as mentioned above, the odor component contained in the said air melt | dissolves in water. As a result, odor components such as hydrogen sulfide, methyl mercaptan, and ammonia are dissolved in water and further decomposed with electrolyzed water containing hypochlorous acid, and the cleaned air is released into the toilet room. It will be.

  In addition, although it is electrolysis by energizing the electrodes 24 and 25 for electrolysis by the control device 22 described above, electrolysis is performed in tap water in the electrolytic bath 23 for a predetermined time in advance before bubbling the odor component, and the electrolytic bath 23 Electrolyzed water containing hypochlorous acid may be generated therein, or electrolysis may be performed during bubbling, and further, electrolysis may be performed after dissolving odor components in the tap water. It is also good.

  Here, the decomposition mechanism of the odor component using electrolysis of an aqueous solution will be described with reference to FIG. FIG. 9 is a schematic configuration diagram of an experimental apparatus for explaining a mechanism for decomposing odor components.

  This experimental apparatus has a hermetically sealed glass container 43 in which 300 ml of test water is stored, a diffuser pipe 26 for bubbling odor components in the test water, and a test odor component to be sent to the diffuser pipe 26. Odor sealed pack 41 and air pump 42, a collection pack 45 for collecting gas above the water surface in the glass container 43, a liquid collection syringe 44 for collecting test water, and immersed in test water The electrolysis electrodes 24 and 25 and the control device 22 are configured.

The following two types are used as test water. That is, an aqueous solution in which sodium chloride (NaCl) is dissolved in purified water to have a chloride ion concentration of 5 mg / l (hereinafter referred to as Cl ⁻ 5 mg / l water) and sodium chloride (NaCl) in purified water. And aqueous solution (hereinafter referred to as Cl ⁻ 17 mg / l water) dissolved to a chloride ion concentration of 17 mg / l.

  The odor components evaluated in this experiment are three types of odor components, hydrogen sulfide, methyl mercaptan, and ammonia, and these odor components are put in separate odor enclosure packs 41, respectively, and hydrogen sulfide has a gas concentration of 3 ppm and methyl mercaptan. Is diluted with argon gas so that the gas concentration is 3.2 ppm and the gas concentration is 4.8 ppm, and each of these odor components is air pumped by the air pump 42 through the diffusing pipe 26 to each test water. In addition, bubbling is performed at a flow rate of 0.5 ml / min. The odor component that has passed through the test water is collected by the recovery pack 45, the gas concentration is measured by the gas chromatograph and the detector tube, and the test water is sampled by the liquid sampling syringe 44, and the solution component is obtained by the ion chromatograph. Shall be analyzed. In addition, the gas concentration of each said odor component is a density | concentration of about 10 times the odor gas concentration contained in the odor of a normal flush toilet.

Then, the same platinum-iridium electrolysis electrodes 24 and 25 as described above are immersed in the test water. The electrodes 24 and 25 for electrolysis used in the experiment have dimensions of 60 mm in length, 35 mm in width, and 2 mm in thickness, and the distance between the electrodes is 3 mm as described above. Then, a constant current having a current density of 20 mA / cm ² is applied to each of the electrodes 24 and 25 for electrolysis by the control device 22.

  Since the test water contains chloride ions as described above, the chloride ions emit electricity to generate chlorine (Cl) at the electrolysis electrode 24 serving as the anode. Thereafter, this chlorine dissolves in the test water to produce hypochlorous acid (HClO) (reaction formulas (1), (2), (3)).

Table 1 shows test water prepared by electrolyzing the above Cl ⁻ 5 mg / l water for 3 minutes before bubbling odor components described later (hereinafter referred to as Cl ⁻ 5 mg / l electrolyzed water) and the above. The odor component contained in the odor enclosing pack 41 was obtained by electrolyzing Cl ^- 17 mg / l water for 3 minutes before bubbling the odor component described below for 5 minutes (hereinafter referred to as Cl ^- 17 mg / l electrolyzed water). When hydrogen sulfide is encapsulated as 3 ppm and bubbling this hydrogen sulfide gas in each test water for 5 minutes, hypochlorous acid concentration (mg / l) in each test water before and after bubbling and the recovered gas pack shows the concentration of hydrogen sulfide as an odor component gas concentration in (ppm), Table ^2, Cl - 5 mg / l electrolytic water and the upper ^l - about 17 mg / l electrolytic water, the electrolytic even during bubbling of the 5 minutes Indicate the same hypochlorous acid concentration and the concentration of hydrogen sulfide if implemented.

As can be seen from Tables 1 and 2, in Cl ^- 5 mg / l water, 1 ppm of hydrogen sulfide was detected even after bubbling, and when smelling the smell in the recovered gas pack, an unpleasant odor of hydrogen sulfide was found. On the other hand, hydrogen sulfide was not detected from the recovered pack after bubbling in Cl ⁻ 5 mg / l electrolyzed water and Cl ⁻ 17 mg / l electrolyzed water. Further, by solution analysis using an ion chromatograph, in the case of Cl ⁻ 5 mg / l electrolyzed water and Cl ⁻ 17 mg / l electrolyzed water, sulfate ions (SO ₄ ²⁻ ) were detected in the test water after bubbling. From this, it is considered that hydrogen sulfide was decomposed into sulfuric acid which is an odorless component by hypochlorous acid. The hydrogen sulfide decomposition reaction with hypochlorous acid is shown below as reaction formula (4).
H ₂ S + 4HClO → 6H ⁺ + SO ₄ ²⁻ + 4Cl ⁻ (4)

Note that there was no difference in the hydrogen sulfide concentration after bubbling between the case where electrolysis was carried out during bubbling for 5 minutes (Table 2) and the case where electrolysis was not carried out (Table 1). Since the hypochlorous acid concentration after bubbling is higher when electrolysis is performed, more hydrogen sulfide can be decomposed in this case, and electrolysis in the electrolytic cell 23 of the present invention as described later. It is considered that the sterilization and deodorizing effect is improved when water is allowed to flow into the toilet bowl 2.

Table 3 shows that the above-mentioned Cl ⁻ 5 mg / l water, the above Cl ⁻ 5 mg / l electrolyzed water, and the above Cl ⁻ 17 mg / l electrolyzed water are used as test water, and methyl mercaptan as an odor component in the above-mentioned odor enclosure pack 41. When 3.2 ppm is encapsulated and this methyl mercaptan gas is bubbled into each test water for 5 minutes, the hypochlorous acid concentration (mg / l) in the test water and the recovered gas pack in each test water before and after the bubbling Table 4 shows the concentration of methyl mercaptan (ppm) as the odor component gas concentration in the sample, and Table 4 shows the results of electrolysis during the same bubbling for 5 minutes for Cl ⁻ 5 mg / l electrolyzed water and Cl ⁻ 17 mg / l electrolyzed water. The same hypochlorous acid concentration and the same methyl mercaptan concentration are shown.

As can be seen from Tables 3 and 4, in the case of Cl ^- 5 mg / l water, 0.9 ppm of methyl mercaptan was detected even after bubbling, and when the smell in the recovered gas pack was smelled, an unpleasant odor of methyl mercaptan was found. On the other hand, methyl mercaptan was not detected in the recovered pack after bubbling in Cl ⁻ 5 mg / l electrolyzed water and Cl ⁻ 17 mg / l electrolyzed water. Furthermore, metal sulfonic acid (SO ₄ ²⁻ ) was detected in the test water after bubbling in the case of Cl ⁻ 5 mg / l electrolyzed water and Cl ⁻ 17 mg / l electrolyzed water by solution analysis by ion chromatography. From this fact, it is considered that methyl mercaptan was decomposed by hypochlorous acid into metal sulfonic acid which is an odorless component. Hereinafter, the decomposition reaction of methyl mercaptan by hypochlorous acid is shown by the reaction formula (5).
CH ₃ SH + 3HClO → CH ₃ SO ₃ H + 3HCl (5)

In addition, when electrolysis is performed during the above-mentioned 5 minutes of bubbling (Table 2) and when electrolysis is not performed (Table 1), the difference in methyl mercaptan concentration after bubbling is similar to the case of hydrogen sulfide described above. Although not seen, since the hypochlorous acid concentration after bubbling is higher when electrolysis is performed even during bubbling, in this case more methyl mercaptan can be decomposed and as described later It is considered that the sterilization and deodorizing effects are improved when the electrolyzed water in the electrolyzer 23 of the present invention is flowed into the toilet bowl 2.

Table 5 shows that the above Cl ⁻ 5 mg / l water, the above Cl ⁻ 5 mg / l electrolyzed water, and the above Cl ⁻ 17 mg / l electrolyzed water are used as test water. .8 ppm was encapsulated, and when ammonia gas was bubbled into each test water for 5 minutes, hypochlorous acid concentration (mg / l) in each test water before and after bubbling and odor in the recovered gas pack The ammonia concentration (ppm) as the component gas concentration is shown, and Table 6 shows that the electrolysis was performed during the bubbling for 5 minutes with respect to the fields of Cl ⁻ 5 mg / l electrolyzed water and Cl ⁻ 17 mg / l electrolyzed water. The same hypochlorous acid concentration and ammonia concentration are shown.

As can be seen from Tables 3 and 4, in the case of Cl ^- 5 mg / l water, 0.5 ppm of ammonia was detected even after bubbling, and when the smell in the recovered gas pack was smelled, there was an unpleasant odor of ammonia. On the other hand, ammonia was not detected from the recovered pack after bubbling in Cl ⁻ 5 mg / l electrolyzed water and Cl ⁻ 17 mg / l electrolyzed water. Further, by solution analysis by ion chromatography, ammonium ion (NH ₄ ⁺ ) was not detected in the test water after bubbling in the case of Cl ⁻ 5 mg / l electrolyzed water and Cl ⁻ 17 mg / l electrolyzed water. From this, it is considered that the ammonia dissolved in the test water was decomposed by hypochlorous acid at a so-called breakpoint. Hereinafter, the decomposition reaction of ammonia by hypochlorous acid is shown by reaction formulas (6) to (8).
NH ₄ ⁺ + ClO ⁻ → NH ₂ Cl + H ₂ O (6)
NH ₂ Cl + ClO ⁻ → NHCl ₂ + H ₂ O (7)
NH ₂ Cl + NHCl ₂ → N ₂ ↑ + 3HCl (8)

In addition, when electrolysis is performed during the above-mentioned 5 minutes of bubbling (Table 2) and when electrolysis is not performed (Table 1), there is a difference in the ammonia concentration after bubbling as in the case of hydrogen sulfide and methyl mercaptan. However, in the case where electrolysis was performed during bubbling, the hypochlorous acid concentration after bubbling was higher, so in this case, more ammonia could be decomposed, as described later. It is considered that the sterilization and deodorizing effects are improved when the electrolyzed water in the electrolyzer 23 of the present invention is flowed into the toilet bowl 2.

From the above, by using Cl ⁻ 5 mg / l electrolyzed water and Cl ⁻ 17 mg / l electrolyzed water as test water, hydrogen sulfide, methyl mercaptan and ammonia are simply decomposed by bubbling into the test water in a very short time. I was able to.

In the flush toilet 8 of the present embodiment, the odor component bubbled into the electrolytic bath 23 as described above is decomposed by the electrolyzed water containing hypochlorous acid by electrolysis. Further, according to the electrolysis electrodes 24 and 25 of the examples, ozone, oxygen, hydrogen peroxide, hydrogen peroxide radical, superoxide radical (O ₂ ⁻ ), hydroxy radical (.OH), Since singlet oxygen radicals ('O ₂ ) are also generated, the odor components contained in the air discharged into the water in the electrolytic bath 23 can be decomposed by these. The energization of the electrodes 23 and 24 for electrolysis includes a hypochlorous acid concentration sensor, an ozone concentration sensor, etc. (not shown), and is a control for stopping electrolysis when detection values of these various concentration sensors reach a predetermined value. It is also good to run.

  Further, in the electrolysis apparatus 20 of the present invention, the odor component that has risen in the form of bubbles in the electrolytic cell 23 is decomposed and non-brominated, and air is repelled above the electrolytic cell 23 while containing hypochlorous acid, ozone, and the like. By providing an air outlet (not shown) in the upper part of the electrolytic cell 23, hypochlorous acid or the like contained in the splashed splash is discharged into the toilet room. As a result, odor components that could not be collected by the odor adsorbing device 100 contained in the surrounding air are also decomposed and sterilized in the air.

  Further, in the above-described odor component decomposition mode, the electrolyzed water in the electrolytic tank 23 after the odor component decomposition is performed, and a flush lever (not shown) is used for flowing water for flushing the toilet 2 stored in the water tank 4. Or the total amount or predetermined amount of the electrolyzed water in the electrolytic bath 23 from the outlet 28 </ b> A through the electrolyzed water flow path 27 by opening the valve 31 every predetermined time by interlocking with a switch for washing or the like by the control device 22. The toilet 2 is washed out together with the washing water. As a result, the toilet bowl 2 is bleached, washed, deodorized, sterilized, etc., with hypochlorous acid contained in the electrolytic water, and the toilet bowl 2 is filled with only the flushing water like a normal flush toilet. Compared with the case of washing, the washing ability of the toilet can be improved.

  The valve 31 has a predetermined time when it is detected that the toilet 2 is in use by detection means for detecting that the toilet 2 is in use, for example, a seating sensor on the toilet seat (not shown). It is good also as making it open | release for a fixed time every time and flowing the electrolyzed water in the electrolytic vessel 23 in the toilet bowl 2 by this.

  Furthermore, the hot water cleaning device 30 of this embodiment electrolyzes water before being sprayed from the fountain port 51 provided at the tip of the shower nozzle 52 to the local portion by the electrolysis device 55 as described above, and the water is ozone water. Therefore, the local area is sterilized by ozone, and an effect is expected for treatment of hemorrhoids.

  In addition, when the amount of energization to the electrodes 53 and 54 for electrolysis by the control device 57 and the energization time can be changed by a switch or the like (not shown), the concentration of ozone water for local cleaning may be reduced as necessary. Furthermore, by generating high-concentration ozone water, it can be used for sterilization and washing of the injection nozzle 51 and the toilet 2.

  FIG. 2: has shown schematic structure figure of the flush toilet 8 provided with the deodorizing apparatus 1 as the 2nd Example of this invention. 2 that have the same reference numerals as those of the first embodiment have the same or similar functions and effects. In this case, the adsorption member 11 is provided in the circulation path 14 without the rotation mechanism such as the motor, the odor flow path 15 and the circulation path 14 are communicated, and the odor flow path 15 is connected to the circulation path 14. The configuration is the same as that of the first embodiment except that the lids 32A and 32B are provided at the portion connected to. In addition, although the said adsorption member 11 in a present Example shall not have a rotation mechanism, when improving the adsorption | suction and discharge | release capability of the odor component by the adsorption member 11, the same rotary type as the said Example 1 is used. The adsorption member 11 can also be provided in the circulation path 14.

  In the present embodiment, the odor of the flush toilet sucked by the fan 12 from the odor inlet 29 passes through the adsorption member 11 provided in the circulation path 14 as described above, and the odor is collected by the adsorption member 11. It will be.

  In the deodorization mode, the control device 22 opens the lids 32A and 32B to adsorb the odor to the adsorption member 11. However, when the deodorization mode ends, the control device 22 immediately removes the lids 32A and 32B. Close. Thereafter, the odor component decomposition mode is executed. In this case, the same operation as in the first embodiment, that is, the air in the circulation path 14 is circulated by the fan 16 and the air heated by the heater 13 is adsorbed. The member 11 is heated and regenerated, and the adsorbing member 11 releases the adsorbed odor component. The released odorous substance rides on the high-temperature air, is sucked by the air pump 19 at the upstream portion of the throttle portion 17, is taken into the intake pipe 18, and is sent to the diffuser pipe 26 via the check valve 21. Will be. Even with such a configuration, the odor component of the flush toilet can be collected and decomposed by electrolysis. Furthermore, the toilet bowl 2 is washed with the electrolyzed water in the electrolyzer 23 as in the first embodiment.

  In the flush toilet 8 equipped with the deodorizing apparatus 1 of the present embodiment, for example, when the odor component is released from the adsorption member 11 in the odor component decomposition mode, the adsorption member 11 is accommodated in the circulation path 14. From this, it is possible to avoid the inconvenience that the released odor component diffuses again into the toilet room and the like, and the rotation mechanism of the adsorption member 11 is not required. 1 can be miniaturized.

  Next, FIG.3 and FIG.4 has shown the schematic block diagram of the flush toilet 8 provided with the deodorizing apparatus 1 as the 3rd Example of this invention. 3 and 4 that are denoted by the same reference numerals as those of the above-described embodiments have the same or similar functions and effects. In this case, the configuration is the same as in each of the above embodiments except that the electrolyzed water flow path 27 branches to the same 28B and 28C in addition to the outlet 28A in the downstream portion of the valve 31.

  Thereby, in the flush toilet 8 provided with the deodorizing apparatus 1 of the present embodiment, the electrolyzed water from the electrolytic cell 23 is caused to flow into the toilet 2 in three directions from the outlets 28A, 28B, 28C. Thus, compared to the case where the inside of the toilet 2 is washed with electrolyzed water only by the outlet 28A, the inside of the toilet 2 can be more uniformly and widely washed. In the present embodiment, the number of outlets is three at 28A, 28B, and 28C, but it goes without saying that the number of outlets can be increased or decreased as necessary.

  5 and 6 show a schematic configuration diagram of a flush toilet 8 provided with a deodorizing apparatus 1 as a fourth embodiment of the present invention. 5 and 6 that are denoted by the same reference numerals as those of the above-described embodiments have the same or similar functions and effects. In this case, the electrolysis apparatus shown by 40 in FIG. 5 and FIG. 6 has the same configuration as each of the above embodiments except that it is partially different from the electrolysis apparatus 20 of each of the above embodiments. That is, the electrolyzer 40 of the present embodiment uses the water storage tank 4 as an electrolyzer of the electrolyzer 40 instead of the electrolyzer 23 in the above embodiments.

  Thereby, in the flush toilet 8 provided with the deodorizing apparatus 1 of the present embodiment, the water storage tank 4 installed in a normal flush toilet is not provided with the electrolytic bath 23 in the electrolysis apparatus 40, and the electrolytic bath 23 is provided. By using it similarly, the deodorizing apparatus 1 can be further miniaturized. Further, in this embodiment, since electrolysis is performed in the water storage tank 4, electrolyzed water containing hypochlorous acid is generated in the water in the water storage tank 4, and the growth of fungi and germs in the water storage tank 4 occurs. And the like, so that the inside of the water storage tank 4 can be kept clean and the deodorization in the toilet room can be further performed.

  In this embodiment as well, the toilet 31 can be washed with electrolyzed water every time it is washed or every predetermined time by opening and closing the valve 31 as in the above embodiments.

  FIG. 7: has shown schematic structure figure of the flush toilet 8 provided with the deodorizing apparatus 1 as the 5th Example of this invention. 7 that have the same reference numerals as those in the above-described embodiments have the same or similar functions and effects.

  In the deodorizing apparatus 1 of the embodiment in this case, the odor generated in the flush toilet is transferred from the odor suction port 29 through the odor passage 15 to the intake pipe 18 provided with the check valve 21 by the operation of the air pump 19. While being aspirated, it is fed to the air diffuser 26. Then, the air containing the odor component fed to the diffuser pipe 26 is decomposed in the electrolytic bath 23 by the electrolyzed water in the same manner as in the above embodiments.

  With the above configuration, in this embodiment, the odor of the flush toilet can be deodorized without using the above-described adsorption member 11 or the like. Thereby, the further size reduction and cost reduction of the deodorizing apparatus 1 are realizable.

  However, in this case, as described above, the odor caused by hydrogen sulfide, methyl mercaptan, ammonia or the like is generated immediately in the toilet 2 or the toilet room by an odor sensor (not shown) or a seating sensor on the toilet seat 3 (not shown). The control device 22 senses the use of a flush toilet or manually drives the air pump 19 and energizes the electrolysis electrodes 24 and 25 of the electrolysis device 20 to remove the odor from the electrolysis tank of the electrolysis device 20. In general, the electrolysis apparatus 20 is operated every time the flush toilet is used, and the operation efficiency of the electrolysis apparatus may be reduced. However, as described above, the deodorizing apparatus 1 can be significantly reduced in size and cost, and needless to say, it is effective depending on the usage form.

  In the present embodiment, the odor of the flush toilet is sucked by the air pump 19, but the odor of the flush toilet may be sucked using a fan, for example.

  FIG. 8: has shown schematic structure figure of the flush toilet 8 provided with the deodorizing apparatus 1 as the 6th Example of this invention. In FIG. 8, components having the same reference numerals as those in the above embodiment have the same or similar functions and effects. In this case, the deodorizing apparatus 1 includes a buffer tank 33 and an air valve 34 in the intake pipe 18 between the check valve 21 and the air diffusion pipe 26 in the deodorizing apparatus 1 of the fifth embodiment.

  Thereby, in the deodorizing apparatus 1 of the present embodiment, the odor generated in the flush toilet can be stored for a predetermined time or a predetermined amount even though the odor adsorbing portion such as the adsorbing member 11 is not provided. Can be decomposed by the electrolyzer 20 as needed. That is, in the deodorizing apparatus 1 of the present embodiment, odor due to hydrogen sulfide, methyl mercaptan, ammonia or the like generated when using the flush toilet as described above is generated in the toilet bowl 2 or the toilet room and is sent to the odor sensor (not shown) or the toilet seat 3 (not shown). The control device 22 drives the air pump 19 and the air valve 34 is closed by detecting the use of the flush toilet with a seating sensor of the vehicle or by a manual switch, so that the odor is contained in the buffer tank 33. Can be stored, and the stored odor can be decomposed by feeding it to the electrolyzer 23 as required. Thereby, it becomes possible to store odors without providing the adsorbing member 11 and the like, and it becomes possible to control the operation of the electrolysis apparatus 20 as necessary, and further energy saving and downsizing of the deodorizing apparatus 1 can be achieved. become able to.

  In each of the above embodiments, the cleaning by the outflow of the electrolyzed water from the electrolyzer 23 into the toilet 2 is performed when the toilet 2 of the flush toilet is washed with water after the odor component decomposition mode ends. However, the present invention is not limited to this, and the control device 22 electrolyzes the tap water in the electrolytic bath 23 and stores the electrolytic water every predetermined time, and discharges the predetermined amount each time the toilet 2 is washed with water. Thus, the toilet 2 can be washed. Furthermore, the use of a flush toilet is detected by the odor sensor or a seating sensor on the toilet seat 3 (not shown), or by operating a manual switch, the waste excreted in the toilet 2 is washed with water. During use of the toilet, the flushed toilet is washed away by hypochlorous acid contained in the electrolyzed water by operating the valve 31 at predetermined time intervals or by operating the valve 31 with a switch or the like (not shown). It becomes possible to directly deodorize the odor of the excrement during use of the toilet, and to reduce the unpleasant odor when using the flush toilet.

  In each of the above-described embodiments, the so-called Western-style toilet provided with the toilet seat 3 has been described. However, the present invention is not limited thereto, and the deodorizing apparatus 1 of the present invention is provided in a so-called Japanese-style toilet or a men's urinal without a toilet seat. It is good.

  Furthermore, in the above embodiment, the material for the electrodes 24 and 25 for electrolysis is platinum-iridium, but not limited thereto, carbon or the like can also be used. Further, in each of the above embodiments, hydrogen sulfide, methyl mercaptan, and ammonia have been described as examples of odor components, but it goes without saying that the odor components that can be deodorized by the deodorizer 1 of the present invention are not limited thereto.

It is a schematic block diagram of the flush toilet provided with the deodorizing apparatus of Example 1 of this invention. It is a schematic block diagram of the flush toilet provided with the deodorizing apparatus of Example 2 of this invention. It is a schematic block diagram of the flush toilet provided with the deodorizing apparatus of Example 3 of this invention. It is a schematic block diagram of the flush toilet provided with the deodorizing apparatus of Example 3 of this invention. It is a schematic block diagram of the flush toilet provided with the deodorizing apparatus of Example 4 of this invention. It is a schematic block diagram of the flush toilet provided with the deodorizing apparatus of Example 4 of this invention. It is a schematic block diagram of the flush toilet provided with the deodorizing apparatus of Example 5 of this invention. It is a schematic block diagram of the flush toilet provided with the deodorizing apparatus of Example 6 of this invention. It is a schematic block diagram of the experimental apparatus for demonstrating the decomposition processing mechanism of the odor component by electrolysis of this invention. It is a schematic block diagram of the warm water washing | cleaning apparatus using ozone water as an example of the warm water washing | cleaning apparatus of the flush toilet provided with the deodorizing apparatus of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Deodorizing device 2 Toilet bowl 3 Toilet seat 4 Water tank 5 Water supply pipe 6 Pump 7 Supply pipe 8 Flush toilet 11 Adsorption member 12, 16 Fan 13, 50 Heater 14 Circulation path 15 Odor flow path 17 Restriction section 18 Intake pipe path 19 Air pump 20, 40, 55 Electrolysis device 21 Check valve 22, 57 Control device 23 Electrolyzer 24, 25, 53, 54 Electrolysis electrode 26 Aeration pipe 27 Electrolyzed water flow path 28A, 28B, 28C Outlet port 29, 29A Odor inlet 30 Hot water cleaning device 31 Valve 32A, 32B Lid 33 Buffer tank 34 Air valve 41 Odor enclosing pack 42 Air pump 43 Glass container 44 Syringe for liquid collection 45 Recovery pack 51 Fountain port 52 Shower nozzle 56 Water channel 100, 200 Odor adsorbing device

Claims (10)

In a flush toilet comprising a toilet and flushing means for flushing the inside of the toilet,
An electrolyzer provided with a pair of electrodes and storing water, a power source for energizing the pair of electrodes, an odor suction means for sucking odor of excrement, and the suction sucked by the odor suction means An odor supply means for supplying odor into the electrolytic cell;
A flush toilet, wherein the electrode is energized by the power source to generate electrolyzed water in the electrolytic cell, and the odor is deodorized by the electrolyzed water. An adsorbing member for adsorbing the odor sucked by the odor sucking means, and a heating means for releasing the odor adsorbed by the adsorbing member by heating the adsorbing member,
The flush toilet according to claim 1, wherein the odor released from the adsorbing member is supplied into the electrolytic cell by the odor supply means and deodorized.   The flush toilet according to claim 1 or 2, wherein the odor supply means supplies the odor into the electrolytic cell from a position below half the height of the electrolytic cell.   The flush toilet according to any one of claims 1 to 3, wherein the odor is supplied into the electrolytic cell by the odor supply means in a state where electrolytic water is stored in the electrolytic cell.   A flow path for flowing the water or the electrolyzed water in the electrolytic cell into the toilet bowl, and a valve provided in the flow path for controlling whether or not the water or the electrolyzed water can flow into the toilet bowl The flush toilet according to claim 1, further comprising:   The flushing device according to claim 5, wherein the flushing means includes a flushing lever or switch for flowing water into the toilet bowl, and the valve is opened in conjunction with the lever or switch. toilet.   The apparatus further comprises detection means for detecting that the toilet is in use, and when the detection means detects that the toilet is in use, the valve is opened for a predetermined time every predetermined time. The flush toilet according to claim 5 or 6, characterized by the above.   8. The flush toilet according to claim 5, further comprising a manual switch for opening the valve for a predetermined time. In a deodorizing method for a flush toilet in which water is stored and deodorized by supplying odor of excrement into an electrolytic cell including an electrode pair provided so that at least a part of the water is immersed in the water,
Before and / or during and / or after supplying the odor into the electrolytic cell, the electrode pair is energized to generate electrolytic water in the electrolytic cell, and the odor contained in the odor by the electrolytic water. A method for deodorizing a flush toilet characterized by decomposing components. The deodorizing method for a flush toilet according to claim 9, wherein the toilet is washed, sterilized and deodorized by flowing the electrolyzed water into the toilet.

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