JP2006152553A - Toilet deodorizing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the following problem that a conventional toilet deodorizing device cannot completely remove odors of feces due to the absence of such an adsorbent as to adsorb all the odors of feces, and disables the expectation of the effect of increasing a sense of relaxation in a toilet. <P>SOLUTION: A catalyst-integrated adsorbent 12 and an oxygen-enriched air generator 13 for generating oxygen-enriched air to a rear step of the catalyst-integrated adsorbent are provided inside a toilet bowl-integrated toilet unit 5. The adsorbent 12 makes an entrance 9 of a ventilation passage 15 connected to the inside of a toilet bowl 1 through an inlet 6, has a ventilation means 14 for allowing air to flow through the ventilation passage 15, and makes the catalyst and the adsorbent mixed and supported in the ventilation passage 15. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an apparatus for removing stool odor, which is a bad odor in a toilet, and more particularly to a toilet deodorizing apparatus that removes stool odor and adds oxygen-enriched air.

There are many conventional toilet deodorizing devices including a simple one using only an adsorbent. Furthermore, what used only the metal oxide is also conventional (for example, refer patent document 1). In addition, the conventional toilet deodorization apparatus does not have a function of adding oxygen-enriched air to the deodorized air.
JP-A-8-257406

  However, in the conventional toilet deodorizing apparatus, since there is no adsorbent that adsorbs all the stool odor, the stool odor cannot be completely removed. Further, if only a catalyst composed of a metal oxide is used, for example, hydrogen sulfide is removed, but methyl mercaptan is changed to dimethyl disulfide and has a problem that it cannot be completely removed as a bad odor. .

  Furthermore, the conventional toilet deodorizing apparatus is only for removing odors, and has a problem that it cannot be expected to give a relaxed feeling to the user in the toilet.

  In view of the above-mentioned conventional problems, the problem to be solved by the present invention is to provide a toilet deodorizing apparatus that not only removes the stool odor but also gives the user a sense of relaxation.

  In order to solve the above-described problems, a toilet deodorization apparatus according to the present invention has ventilation means for communicating a ventilation path into a toilet bowl via an air inlet and for passing the ventilation path, and is provided in the ventilation path. A catalyst-integrated adsorbent carrying a mixture of a catalyst and an adsorbent, and an oxygen-enriched air generator for generating oxygen-enriched air inside the toilet unit-integrated toilet unit. It is provided.

  By this means, the oxygen-enriched air is given to the air from which the stool is removed by the action of both the catalyst and the adsorption, and a clean feeling and a relaxed feeling can be obtained.

  The toilet deodorization apparatus of the present invention is a odor odor by using the adsorbent contained in the catalyst-integrated adsorbent by changing to an odorless substance by the adsorption action and catalytic action of the catalyst body or by changing to a substance that can be adsorbed by the adsorbent. The oxygen-enriched air generated from the oxygen-enriched air generator can give a feeling of relaxation.

  1st invention has a ventilation means for letting a ventilation path communicate in the toilet bowl via an air inlet, and ventilating to the ventilation path, and is provided in the ventilation path, and a catalyst and an adsorbent are mixed and carried. The catalyst-integrated adsorbent and an oxygen-enriched air generator that generates oxygen-enriched air are provided in the toilet unit-integrated toilet unit.

  As a result, when the use is added in the toilet, the stool odor in the toilet bowl is directly sucked into the toilet unit from the inside of the toilet, and is passed through the ventilation path, and the catalyst and adsorbent are mixed and carried. When passed through a catalyst-integrated adsorbent, most of the stool odor is adsorbed by the catalyst or adsorbent, but some of the catalyst or adsorbent that cannot be adsorbed by the catalyst is changed to a substance that can be adsorbed by the adsorbent be able to. For this reason, all fecal odors can be removed.

  Furthermore, oxygen-enriched air can be generated from an oxygen-enriched air generator disposed in the subsequent stage. Therefore, the stool odor in the toilet bowl can be deodorized without diffusing in the room, and the effect of increasing the sense of relaxation by the oxygen-enriched air can be obtained.

  The second invention has a ventilation means for communicating the ventilation path in the toilet bowl via the air intake and for passing the ventilation path, and is provided in the ventilation path, and the catalyst and adsorbent are mixed and carried. The catalyst-integrated adsorbent and an oxygen-enriched air generator for generating oxygen-enriched air are provided in the rear of the toilet seat.

  As a result, when the use is added in the toilet, the stool odor in the toilet is directly sucked from the air intake through the air inlet and passed through the ventilation path, and passes through the catalyst-integrated adsorbent that supports the mixed catalyst and adsorbent. In this case, most of the stool odor is adsorbed by the catalyst or the adsorbent, but some of the substances that cannot be adsorbed by the catalyst or the adsorbent can be converted into substances that can be adsorbed by the adsorbent. For this reason, all fecal odors can be removed.

Furthermore, oxygen-enriched air can be generated from an oxygen-enriched air generator disposed in the subsequent stage. Therefore, the stool in the toilet bowl can be deodorized without diffusing into the toilet room, and the effect of increasing the relaxed feeling can be obtained by the oxygen-enriched air.
In the third invention, in particular, the catalyst of the first invention or the second invention is made of at least one selected from oxides of titanium, chromium, manganese, iron, cobalt, nickel, copper, and zinc. Formed.

  As a result, if at least one selected from the oxides of titanium, chromium, manganese, iron, cobalt, nickel, copper, and zinc is used as the catalyst, the activity of the catalyst is large. Passing fecal odor through the body can quickly change to an odorless substance or another substance. This changed substance can be removed by a subsequent adsorbent or an adsorbent mixed with a catalyst.

  In the fourth invention, in particular, the catalyst of the first invention or the second invention is made of at least two or more selected from oxides of titanium, chromium, manganese, iron, cobalt, nickel, copper, and zinc. In addition, they form a complex oxide.

  As a result, if at least two or more selected from the oxides of titanium, chromium, manganese, iron, cobalt, nickel, copper, and zinc are used as the catalyst, they form a composite oxide. Since the activity is large, when the stool is passed through the catalyst body or the catalyst-integrated adsorbent body, it can be quickly changed to an odorless substance or another substance. This changed substance can be removed by a subsequent adsorbent or an adsorbent mixed with a catalyst.

  In the fifth invention, in particular, the adsorbent of the first invention or the second invention is formed of at least one selected from zeolite, activated carbon, silica gel, and silicon oxide, and zeolite is used as the adsorbent. If at least one selected from activated carbon, silica gel, and silicon oxide is used, the adsorbing ability is high, so the passing stool odor can be adsorbed and removed quickly and reliably.

  In the sixth invention, in particular, the catalyst-integrated adsorbent of the first or second invention is formed of a ceramic honeycomb. If a ceramic honeycomb is used as the catalyst-integrated adsorbent, the corrosion resistance is high. Even if a stool having a high corrosiveness or a stool containing a lot of moisture is allowed to pass, the catalyst body, the adsorbent body and the catalyst-integrated adsorbent body can be removed without deteriorating.

  In the seventh invention, in particular, the oxygen-enriched air generating device according to any one of the first to sixth inventions allows oxygen sucked from the outside of the toilet space to pass through the oxygen-enriched membrane, thereby oxygen-enriched air. The oxygen concentration in the toilet space gradually increases with time by passing the air sucked from the outside of the toilet space through the oxygen-enriched membrane to obtain oxygen-enriched air. A sense of relaxation during use can be effectively achieved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiment.

(Embodiment 1)
FIG. 1 is a schematic side view showing a configuration of a toilet deodorizing apparatus according to Embodiment 1. The toilet deodorization apparatus of the present invention communicates with the interior of the toilet 1 of the toilet unit-integrated toilet unit 5 having a Western-style toilet 1, a toilet seat 2, a lid 3, and a tank 4 through an air inlet 6, and through the connecting portion 7. It is connected to the toilet deodorizing apparatus main body 8 provided inside the unit 5, that is, at the lower part of the tank 4. Therefore, the stool emitted from the toilet 1 enters the toilet deodorizing device main body 8 from the inlet 6 through the connection port 7 through the connection portion 7 and through the inlet 9 of the ventilation path (ventilation path 15 shown in FIG. 2). Is added to the outside of the toilet unit-integrated toilet unit 5 from the toilet deodorizing apparatus main body 8.

  FIG. 2 is a block diagram showing the toilet deodorizing apparatus main body 8 shown in FIG. That is, the toilet deodorizing apparatus main body 8 is provided with the catalyst-integrated adsorbent body 12 that is mixed and supported on the ventilation path 15 configured inside the casing 11 and the casing 11 and that is located in the preceding stage and carries the catalyst and the adsorbent. Each of the oxygen-enriched air generators 13 for generating oxygen-enriched air is provided at the subsequent stage of the catalyst-integrated adsorbent 12, and is further provided at the front stage of the catalyst-integrated adsorber 12 to ventilate the ventilation path 15. Ventilation means 14 such as a propeller fan to be generated is provided.

  Accordingly, the stool odor sucked by the ventilation means 14 from the inlet 9 flows in the ventilation path 15 as indicated by the arrow, passes through the catalyst-integrated adsorbent 12, and is generated by the oxygen-enriched air generator 13. As shown by the arrows, the oxygen-enriched air is added to the purified air.

  FIG. 3 is a block diagram showing the oxygen-enriched air generator 13 inside the toilet deodorizing apparatus body 8 shown in FIG. The oxygen-enriched air generator 13 introduces outside air from the outside of the toilet space 17 by a ventilation means 19 such as a propeller fan through a pipe (not shown) and the outside air from the outside air outlet 18 to the outside of the toilet space by a pipe (not shown). Exhaust. The introduced outside air passes through the oxygen-enriched film 16 by the negative pressure of the vacuum pump 20. Since the oxygen-enriched film 16 has a property of permeating oxygen faster than nitrogen, air that has passed through the oxygen-enriched film 16 has a higher oxygen concentration than normal air. Therefore, air that has passed through the oxygen-enriched film 16 and has an increased oxygen concentration is discharged from the oxygen-enriched air outlet 21 and added to and mixed with the air deodorized by the catalyst-integrated adsorbent 12.

  As a representative example of the stool odor, a mixed gas of hydrogen sulfide, ammonia, and methyl mercaptan is used in the present embodiment, and a dipyrroxite # 7810 (manufactured by manganese, Copper and cobalt composite oxide), hydrophobic zeolite sold by Union Showa Co., Ltd. as an adsorbent, Absent # 2000 (components are less than 100 parts by weight of silicon dioxide, less than 35 parts by weight of aluminum oxide, and 10 parts by weight of water) Less than 5 parts by weight, and the total of the four types is 100 parts by weight), and a honeycomb structure of a ceramic material is used as a carrier, and the catalyst and the adsorbent are 1: 1. Thus, the catalyst-integrated adsorbent 12 is mixed.

  Hereinafter, the operation of the present embodiment will be described. Hydrogen sulfide, ammonia, and methyl mercaptan as stool passing through the inside of the casing 11 are all adsorbed by the catalyst portion of the pre-catalyst-integrated adsorbent 12, and most of the ammonia passes. Furthermore, methyl mercaptan is all converted to dimethyl disulfide by catalysis. On the other hand, ammonia is completely adsorbed in the adsorbent part, and dimethyl disulfide changed from methyl mercaptan is completely adsorbed, so that all of the stool odor is removed. In this way, the oxygen-enriched air generated by the oxygen-enriched air generator 13 is added to and mixed with the clean air after all the stool odor has been removed.

  Next, the result of the experiment for verifying the effect of the first embodiment described above will be reported.

  In the first experiment, a toilet-integrated toilet unit 5 incorporating a toilet deodorizing device body 8 using the catalyst-integrated adsorbent 12 and the oxygen-enriched air generator 13 described above, and an adsorbent only as a conventional example are used. A toilet stool-integrated toilet unit incorporating a toilet deodorizing device and a toilet-integrated toilet unit incorporating a toilet deodorizing device using only a catalyst body, and a mixture of hydrogen sulfide, ammonia and methyl mercaptan as stool odor Of dimethyl disulfide mixed from hydrogen sulfide, ammonia, methyl mercaptan and methyl mercaptan after passing through the respective toilet deodorizers by mixing at a concentration of 50 ppm each and flowing at a space velocity of SV = 10000 h-1. The concentration is measured and the removal rate is measured. The results of this experiment are shown in FIG.

  As shown in FIG. 4, if the toilet deodorization apparatus of Embodiment 1 is used, the mixed stool odor can be completely removed for 10 hours. This is because the stool odor concentration in the normal toilet space is about 0.05 ppm, although there are some errors for each substance. In this implementation, this is a 1000-fold accelerated test and has a lifetime of 10,000 hours. That is why. If it is used for 3 hours a day, it has a life equivalent to 9 years.

  In the second experiment, when the same experiment as the first experiment was performed by changing the type of catalyst used as the catalyst body, the removal rate after 5 hours of stool odor and the removal rate reached 90%. Is measured. The results of this experiment are shown in the following (Table 1).

  As a result of this experiment, if manganese oxide or copper oxide is used as the catalyst, the removal rate is highest for the longest time, followed by the effect of zinc oxide, and the effect of titanium oxide, chromium oxide, iron oxide, cobalt oxide, nickel oxide Turned out to be expensive.

  In the third experiment, two types of catalysts used as the catalyst body were prepared, and composite oxides were prepared therefrom, and when an experiment similar to the first experiment was performed, 5 hours after the stool odor The removal rate and the time until the removal rate reaches 90% are measured. The results of this experiment are shown in the following (Table 2).

  As a result of this experiment, the complex oxides of metals used for the catalyst are typically manganese and copper, manganese and cobalt, manganese and zinc, and manganese and iron. It was found that even oxides are highly effective.

  In the fourth experiment, when the type of adsorbent used was changed and the same experiment as the first experiment was performed, the removal rate of stool odor after 5 hours and the time until the removal rate reached 90% Is measured. The results of this experiment are shown in the following (Table 3).

  As a result of this experiment, it has been found that if zeolite or activated carbon is used as the adsorbent, the removal rate is the longest and the effect of silica gel and silicon oxide is high.

(Embodiment 2)
FIG. 5 is a front view showing the configuration of the toilet deodorizing apparatus according to the second embodiment. The toilet deodorization apparatus of the present embodiment is different from the toilet deodorization apparatus of the invention described in the first embodiment only in that the toilet deodorization apparatus is provided inside the toilet seat 32 mounted on the toilet bowl 31 of the style. Since the catalyst-integrated adsorbent and the oxygen-enriched air generator other than the above have the same configuration and operational effects as the catalyst-integrated adsorber 12 and the oxygen-enriched air generator 13 shown in FIGS. This will be described with reference to FIG.

  A Western-style toilet 31, a toilet seat 32, and a toilet 33 of a Western-style toilet having a lid 33 are communicated with the air intake 36 facing the interior of the toilet 31 and connected to a toilet deodorizing apparatus main body 38 provided inside the toilet seat 32 through a connection portion 37. . Accordingly, the stool odor indicated by the arrow coming out of the toilet bowl 31 enters the toilet deodorizer main body 38 from the inlet port 39 through the connection portion 37 through the inlet 37 and after the deodorizing treatment and oxygen-enriched air are added. The toilet deodorizing apparatus main body 38 discharges the toilet seat 32 to the outside.

  The toilet deodorization apparatus according to the present embodiment includes a casing 11 and a catalyst-integrated adsorbent body 12 in which a catalyst and an adsorbent are mixed and carried in the casing 11 and an oxygen-enriched air generator that generates oxygen-enriched air. 13 and ventilation means 14, and the stool passes through the ventilation path 15 from the inlet 9 of the ventilation path in the direction of ventilation indicated by the arrow. In this embodiment, a mixed gas of hydrogen sulfide, ammonia, and methyl mercaptan is used as a fecal odor, and a composite oxide of manganese, copper, cobalt and a hydrophobic zeolite are mixed at 1: 1 as the catalyst-integrated adsorbent 12. A ceramic honeycomb is used as the carrier for the catalyst-integrated adsorbent 12.

  The operation of the second embodiment will be described. Hydrogen sulfide, ammonia, and methyl mercaptan as fecal odors that pass through the inside of the casing 11 are all adsorbed by the catalyst portion inside the catalyst-integrated adsorbent 12, and most of the ammonia is not adsorbed. Further, methyl mercaptan is all converted to dimethyl disulfide by the effect of the catalyst. Then, ammonia is completely adsorbed in the adsorbent part, and dimethyl disulfide changed from methyl mercaptan is completely adsorbed, so that all the stool odor is removed.

  In the second embodiment, a toilet deodorizing apparatus using the above-described catalyst-integrated adsorbent was incorporated in the toilet seat 32, and an experiment was performed in the same manner as in the first embodiment. The result of this experiment is shown in FIG.

  As shown in FIG. 6, when the toilet deodorizing apparatus of this embodiment is used, hydrogen sulfide, ammonia, and methyl mercaptan as fecal odors can be completely removed over 7 hours. This is because the stool odor concentration in the normal toilet space is about 0.05 ppm, although there are some errors for each substance. In this example, this is a 1000 times accelerated test, and the life of 7000 hours That is why. If this is used for 3 hours a day, it has a life equivalent to 7 years.

  As described above, the toilet deodorization apparatus according to the present invention can be applied not only to a use in a toilet space but also to an application attached to an air quality improvement device such as an air purifier or an air conditioner in a space where deodorization is required. .

The block diagram of the toilet deodorizing apparatus in the 1st Embodiment of this invention The block diagram of the toilet deodorization apparatus main body in Embodiment 1 of this invention The block diagram of the oxygen enriched air generator inside the toilet deodorizing apparatus of Embodiment 1 of this invention The graph which verified the effect of the toilet deodorizing apparatus in Embodiment 1 of this invention The block diagram of the toilet deodorizing apparatus in Embodiment 2 of this invention The graph which verified the effect of the toilet deodorizing apparatus in Embodiment 2 of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,31 Toilet bowl 2,32 Toilet seat 5 Toilet integrated toilet unit 6,36 Air inlet 8,38 Toilet deodorizing device main body 12 Catalyst integrated adsorbent 13 Oxygen-enriched air generator 14,19 Ventilation means 15 Ventilation path 16 Oxygen rich Chemical film 18 Outside air outlet 21 Oxygen-enriched air outlet

Claims (7)

A catalyst-integrated adsorbent having a ventilating means for communicating with a ventilator through a suction port in the toilet and ventilating the ventilator, provided in the ventilator and carrying a mixture of a catalyst and an adsorbent And a toilet deodorizing device, wherein an oxygen-enriched air generator for generating oxygen-enriched air is provided inside the toilet unit-integrated toilet unit. A catalyst-integrated adsorbent having a ventilating means for communicating with a ventilator through a suction port in the toilet and ventilating the ventilator, provided in the ventilator and carrying a mixture of a catalyst and an adsorbent And an oxygen-enriched air generator for generating oxygen-enriched air, which is provided in the subsequent stage of the catalyst-integrated adsorbent, inside the toilet seat. The toilet deodorization apparatus according to claim 1 or 2, wherein the catalyst is at least one selected from oxides of titanium, chromium, manganese, iron, cobalt, nickel, copper, and zinc. The catalyst is at least two or more selected from oxides of titanium, chromium, manganese, iron, cobalt, nickel, copper, and zinc, and they form a composite oxide. Or the toilet deodorizing apparatus of 2. The toilet deodorizing apparatus according to claim 1 or 2, wherein the adsorbent is at least one selected from zeolite, activated carbon, silica gel, and silicon oxide. The toilet deodorization apparatus according to claim 1 or 2, wherein the catalyst-integrated adsorbent is a ceramic honeycomb. The oxygen-enriched air generation device obtains oxygen-enriched air by allowing air sucked from the outside of the toilet space to permeate through the oxygen-enriched membrane, according to any one of claims 1 to 6. Toilet deodorizer.

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