JP2001329596A - Toilet deodorizer and operating method for toilet deodorizer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that a conventional toilet deodorizer has a complicated structure, and the regeneration of an adsorbent requires time and labor. SOLUTION: This adsorbent 23 can be simply regenerated, and a toilet deodorizer can be used for a long period by operating a suction means 21 to feed the fresh air to the adsorbent 23 even when a toilet is not used.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a deodorizer used in a toilet.

[0002]

2. Description of the Related Art Conventionally, odors in toilets have been eliminated using, for example, a deodorizing spray when immediate deodorization is required. In addition, as a deodorizer only for the toilet,
An adsorption type using an adsorbent and an oxidative decomposition type using ozone are also used.

[0003] However, the mainstream deodorant sprays are masking types which mask odors, which is different from the purpose of removing odors. In addition, they are basically disposable and require maintenance such as replacement.

Further, the adsorption type and the oxidative decomposition type have insufficient performance in terms of immediate effect, and the adsorption type requires maintenance.

[0005] For this reason, the inventors have filed application no.
No. 34685, a porous adsorbent having at least one of zeolite, silica, and alumina supported in addition to a metal oxide or composite oxide containing at least one of manganese, copper, cobalt, and zinc in a ventilation path In order to provide a means for quickly adsorbing and deodorizing an unpleasant odor component in a toilet by providing a odor component. In addition, application number 2000
No. -50600 proposes a configuration in which a heating means for heating and regenerating the adsorbent is provided separately from the adsorbent in order to eliminate maintenance such as replacement of the adsorbent.

[0006]

However, the structure proposed in the above proposal has a problem that the structure is complicated and it takes time and energy to regenerate the adsorbent.

[0007]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems. The present invention relates to a toilet deodorizer for operating a suction means even when the toilet is not used to ventilate fresh air to an adsorbent. As an operation method, the adsorbent can be regenerated with a simple configuration, and the toilet deodorizer has a long life.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention described in claim 1 enables the adsorbent to be easily regenerated by operating the air intake means and ventilating the fresh air to the adsorbent even when the toilet is not used, so that it can be used for a long time. The operation method of the toilet deodorizer that can be used.

According to a second aspect of the present invention, the control means for operating the blower means in accordance with the operation instruction of the operating means operates the blower means for a longer time than a single toilet use. The adsorbent can be regenerated and the toilet has a longer life.

According to a third aspect of the present invention, when the control means detects the use of the toilet by a signal from the sensor, the control means activates the blowing means and determines the timing of regeneration of the adsorbent when the toilet is not used. The deodorizer for toilets can reliably and efficiently regenerate the adsorbent.

According to a fourth aspect of the present invention, the sensor is a toilet deodorizer capable of reliably and efficiently regenerating an adsorbent as first detection means for outputting a signal corresponding to an odor.

According to a fifth aspect of the present invention, the control means instructs the regeneration of the adsorbent at a specific time zone, so that the deodorization for toilet can regenerate the adsorbent without feeling any trouble in using the toilet. Machine.

According to a sixth aspect of the present invention, there is provided a toilet for a toilet in which the suction time at the time of regeneration is 10 minutes or more and 10 hours or less per day so that the adsorbent can be regenerated without waste and replacement of the adsorbent is unnecessary. It is a deodorizer.

According to a seventh aspect of the present invention, the control means includes:
Even after using the toilet, the suction means is operated continuously, and the toilet deodorizer can reliably regenerate the adsorbent.

The invention according to claim 8 is provided with a second detecting means for detecting the end of use of the toilet, and the suction means is continuously operated even after the use of the toilet by the signal of the second detecting means. The deodorizer for toilets can automatically regenerate the adsorbent.

According to a ninth aspect of the present invention, the air intake time at the time of regeneration is set at 1 minute or more and 30 minutes or less per use of the toilet, so that the adsorbent can be used without waste, reliably, and without hindering use of the toilet. The toilet deodorizer can be regenerated.

According to a tenth aspect of the present invention, there is provided a toilet deodorizing apparatus capable of reliably and quietly regenerating an adsorbent by setting an intake air flow rate at the time of regeneration at 0.01 m ³ / min or more and 0.2 m ³ / min or less. Machine.

[0018] In the eleventh aspect of the present invention, the adsorbent comprises:
In addition to a metal oxide or composite oxide containing at least one of manganese, copper, cobalt, and zinc, zeolite, silica, and a porous adsorbent supporting an adsorbent containing at least one of alumina, metal oxide Alternatively, hydrogen sulfide, which is a typical odor of toilets, is chemically adsorbed by the adsorption effect of the composite oxide, and methyl mercaptan is converted to dimethyl disulfide by the catalytic action, while ammonia, by the action of an inorganic adsorbent such as zeolite, It is a toilet deodorizer that physically absorbs dimethyl disulfide and can efficiently deodorize the odor in the toilet.

According to the twelfth aspect of the present invention, the porous body is a honeycomb body, which enables highly efficient odor removal.
In addition, it is a compact toilet deodorizer with low ventilation resistance.

According to a thirteenth aspect of the present invention, the amount of the adsorbent to be supported is 0.05% per cubic centimeter of the honeycomb body.
When the amount is not less than g and not more than 0.2 g, the odor adsorbing capacity can be ensured, and a deodorizing machine for toilets without clogging is provided.

[0021]

(Embodiment 1) A first embodiment of the present invention will be described below. FIG. 1 is a side view showing the configuration of the toilet deodorizer of the present embodiment. The toilet deodorizer of the present embodiment includes a toilet deodorizer main body 6, a connecting portion 5, and an intake port 4 connected to the connecting portion 5.

The connecting portion 5 formed of a hollow hose has one end connected to the intake port 4 and the other end connected to the toilet deodorizer body 6. The connection part 4 is arranged between the Western-style toilet 1 and the toilet seat 2, and sucks air containing odor as shown by an arrow. 3 is a lid. The air containing the odor sucked from the intake port 4 flows into the toilet deodorizer main body 6 through the connection portion 5, and is exhausted after the odor components are adsorbed and deodorized.

The toilet deodorizer body 6 has the structure shown in FIG. FIG. 2 is a sectional view showing the configuration of the toilet deodorizer main body of the present embodiment. That is, in the housing 22 constituting the ventilation path, the blowing means 21 composed of a fan motor is provided.
And an adsorbent 23 for adsorbing odors, and a control means 24 having a function of turning on and off the blowing means 21.

The adsorbent 23 is 80 mm long and 100 m wide.
m, 100 mm thick rectangular parallelepiped, 2 per square inch
A honeycomb body molded of fiber ceramic having the number of cells of 00 is used as a carrier. A composite oxide of manganese, copper, and cobalt (dipyroxide # 7)
810 (Dainichi Seika) and hydrophobic synthetic zeolite (Absentz 3000 Union Showa) at a ratio of 1 body 1 colloidal silica (Snowtex OUP Nissan Chemical) 2%
(Solid content ratio) as a binder, 0.10 g / cm ³
What is carried at the density of is referred to as an adsorbent 23.

With the above arrangement, when the blowing means 21 is turned on, air containing odor passes through the adsorbent 23. The adsorbent 23 has a metal composite oxide as described above, and chemically adsorbs hydrogen sulfide, which is an odor component, by the adsorption action of the metal composite oxide. In addition, methyl mercaptan which is an odor component is converted into dimethyl disulfide by a catalytic action. Further, the hydrophobic synthetic zeolite constituting the adsorbent 23 physically adsorbs odor components such as ammonia in addition to the converted dimethyl disulfide. By combining these actions, the odor of the toilet is removed.

Hereinafter, the results of an experiment performed to verify the effect of the present embodiment will be reported. The apparatus used in this experiment is the toilet deodorizer main body 6 shown in FIGS. In this experiment, the deodorizing performance was examined using a standard gas.

At this time, the amount of air blown by the air blowing means 21 was fixed at 0.2 m ³ / min without a feeling of cool air, and ammonia, hydrogen sulfide and methyl mercaptan were used as odor gas at the time of removal rate measurement, respectively, at 50 ppm. It breathes odor mixed with air. Thus, on the inflow side and the discharge side of the toilet deodorizer main body 6, the concentration after 10 minutes of ventilation is measured, and the respective one-pass removal rates are obtained.

As a result of this experiment, the one-pass removal rate of all odorous gases was 99.9% or more, and good results were obtained.

The reason is as described above. That is, the hydrogen sulfide that constitutes the odor component is adsorbed on the composite oxide of manganese, copper, and cobalt by chemical adsorption. Therefore, as long as an adsorption site exists in the composite oxide, the adsorption is promoted regardless of the concentration. The odorous components dimethyl disulfide and ammonia are physically adsorbed by the hydrophobic synthetic zeolite constituting the adsorbent 23.

At this time, when the amount of the composite oxide carried in the present embodiment is set, considering the amount of hydrogen sulfide generated when the toilet is used with respect to hydrogen sulfide, the regeneration or replacement of the adsorbent 23 is not possible. It becomes useless.

On the other hand, since dimethyl disulfide and ammonia are physically adsorbed, the adsorption capacity varies depending on the concentration. Therefore, even if the supported amount is increased as much as possible, the adsorption capacity is reached in several days to several tens of days at the concentration level of the actual odor, and a regeneration operation is required.

For this reason, the inventors have conducted an experiment in which fresh air is passed through the adsorbent 23 of this embodiment to check the state of regeneration. In this experiment, dimethyl disulfide was used as a representative odor for physical adsorption. That is,
Dimethyl disulfide having a concentration of 1 ppm was converted to 0.2 m ³ /
The change with time of the removal rate when continuous ventilation is performed with a ventilation flow rate of 1 minute is examined. Next, a cycle in which this odor is ventilated for 1 minute and fresh air is ventilated for 10 minutes is repeated, and the change with time of the removal rate is similarly examined.

FIG. 3 is a characteristic diagram showing the results of this experiment. FIG. 3A shows characteristics when continuous ventilation is performed,
(B) is a characteristic diagram when the cycle of ventilation of odor and ventilation of fresh air are repeated. In this experiment,
The ventilation time of fresh air is shown without counting the ventilation time.

As can be clearly seen from FIG. 3, in the case of continuous ventilation (a), the removal rate immediately drops and breaks through, but in the case of alternating ventilation (b), the odor is passed after 100 hours. Also maintains a removal rate of 90% or more, and the odor component is desorbed from the adsorbent 23 and is regenerated.

For this reason, in this embodiment, the control means 24
It is provided with a control program for operating the air blowing means for a longer time than one toilet use. That is, 1
By operating the air blowing means 21 for a longer time than the number of times the toilet is used, fresh air when the toilet is not used can be ventilated to the adsorbent 23. That is, when the toilet is not in use, no odor is generated. Therefore, when the blowing means 21 is operated during this time, the fresh air is released from the adsorbent 23.
It can be ventilated. That is, the adsorbent 23 can be regenerated.

At the time of this regeneration, the odor components are desorbed from the adsorbent 23, and the exhaust contains desorbed odor components. However, since the exhaust is diluted with fresh air, Normally, the odor is not more than the olfactory threshold and the odor is not felt.

In this embodiment, a composite oxide of manganese, copper and cobalt (Dipiroxide # 7810 Dainichi Seika) was used as an adsorbent for chemically adsorbing sulfur compounds such as hydrogen sulfide. Metal oxides and composite oxides containing at least one of, cobalt and zinc exhibit the same effect. As an adsorbent for physically adsorbing ammonia and dimethyl disulfide, a hydrophobic synthetic zeolite (Absents 3000 Union Showa)
Is used, but the same effect can be obtained as an adsorbent containing at least one of zeolite, silica and alumina.

Next, the results of an experiment for verifying the effect of the honeycomb body used as the adsorbent 23 will be described. In this experiment, a carrier having the same shape as the honeycomb body was used by using a foamed metal and a metal fiber whose porosity was adjusted to be equal to that of the honeycomb body. Manganese, copper,
Cobalt composite oxide (Dipiroxide # 7810 Dainichi Seika) and hydrophobic synthetic zeolite (Absentz 300
0 union Showa) and 2% colloidal silica (Snowtex OUP NISSAN CHEMICALS) (solid content ratio) as a binder. The experiment also included ammonia, hydrogen sulfide,
A mixed odor with air adjusted so that methyl mercaptan has a concentration of 50 ppm each is used.

As a result of this experiment, when foamed metal was used, ammonia was 99.2%, hydrogen sulfide was 99.6%,
Methyl mercaptan had a 99.2% removal rate. When metal fibers are used, ammonia is 98.9.
%, Hydrogen sulfide 99.5%, methyl mercaptan 9
The removal rate was 9.2%. On the other hand, when the honeycomb body was used, the removal rate of all odors was 99.9% or more.

That is, when the honeycomb body is used, even if the porosity is the same, the efficiency of contact with the ventilated air is higher than those using the foamed metal and those using the metal fiber. .

Next, the relationship between the honeycomb body of this embodiment, the foamed metal, and the air flow rate and the pressure loss of the metal fiber is examined. The result of this experiment is shown in FIG. As can be seen from FIG. 4, the one using the honeycomb body has a lower pressure loss than the one using the foamed metal or the metal fiber.

As described above, by forming the adsorbent body 23 with a honeycomb body, the pressure loss can be suppressed to a low level without lowering the removal rate, and therefore the toilet deodorizing machine can make the intake means 21 and the like compact. can do.

Next, the change in the removal rate of the odor component and the characteristics up to breakthrough when the amount of the catalyst supported on the adsorbent 23 is changed in the present embodiment are examined. In this experiment, a composite oxide of manganese, copper, and cobalt (dipoxide # 7
810 (Dainichi Seika) and a hydrophobic synthetic zeolite (Absents 3000 Union Showa) at a loading of 0.01 g /
The adsorbent 23 changed from cm ³ to 0.3 g / cm ³ is used. The odor gas used in the experiment was hydrogen sulfide gas whose concentration was adjusted to 10 ppm. The air flow rate of the intake means 21 is set to 0.2 m ³ / min, and the air is continuously ventilated. The result of this experiment is shown in FIG.

As can be understood from FIG. 5, the smaller the amount of the supported catalyst, the lower the removal rate and the shorter the breakthrough time. Particularly when the loading amount is 0.01 g / cm ³ , the initial removal rate is about 90%, which is extremely poor. When the loading amount is 0.05 g / cm ³ , the initial removal rate is 99% or more, and after 20 hours, the removal rate is maintained at 90% or more.

That is, from the results of this experiment, it can be proved that the life of this apparatus is 4000 hours or more. That is, since the average concentration of hydrogen sulfide when passing through the adsorbent 23 from inside the toilet is about 0.05 ppm,
Considering the chemical adsorption, as described above, the life of the apparatus of this embodiment is 4000 hours or more. In other words, if there is a supported amount of the catalyst of 0.05 g / cm ³ or more, the replacement becomes unnecessary in a normal use condition.

At this time, the amount of the supported catalyst was 0.05 g.
/ Cm ³ or more, the initial removal rate increases with breakthrough time. However, when the amount of the supported catalyst is 0.3 g / cm ³ , more than 10% of the cells of the honeycomb are required to form the adsorbent 23. Are clogged by the adsorbent. This phenomenon means that the pressure loss increases. This clogged portion is where the adsorbent does not work effectively. On the other hand, when the carrying amount was 0.2 g / cm ³ , the clogged portion was 1% or less.

[0047] From the above results, in the present example, the amount of supported catalyst has a 0.05 g / cm ³ or more 0.2 g / cm ³ or less in the range, ensure adsorption capacity of odor with respect to the chemical adsorption, such as hydrogen sulfide And good adsorbent 2 without clogging
3 can be realized.

In this embodiment, the control means 24 is provided with a control program for operating the air intake means 21 even when the toilet is not used. For example, the power supply to the air intake means 21 is manually turned on / off. Even so, there is no problem.

(Embodiment 2) Next, a second embodiment of the present invention will be described. FIG. 6 is a side view showing the configuration of the toilet deodorizer of the present embodiment, and FIG. 7 is a sectional view showing the configuration of the main body 5 of the toilet deodorizer. In this embodiment, the toilet seat 2 is provided with a pressure sensor 10 as a second detecting means. In the present embodiment, the capacitance is used as the pressure sensor 10, and the start of use of the toilet or the end of use of the toilet is detected by utilizing the fact that the capacitance between the electrodes changes when a human body pressure is applied. I do. The signal of the pressure sensor 10 is transmitted to the control unit 24.

Further, the main body 7 of the toilet deodorizer is provided with an odor sensor 11 as first detecting means. The odor sensor 11 is disposed on the outlet side of the adsorbent 23, and in this embodiment, tin oxide is used. When a gas containing an odor component comes into contact with the surface of tin oxide, electrons are exchanged between the gas and the tin oxide, and the tin oxide generates a signal corresponding to the concentration of the odor component. The signal of the odor sensor 11 is similarly transmitted to the control means 24.

Hereinafter, the operation of this embodiment will be described.
When a person sits on the toilet seat 2, the pressure sensor 10, which is the second detecting means, generates a signal for detecting the presence of a human body. Also,
When the use of the toilet ends and the person leaves the toilet seat 2, the pressure sensor 10 detects the end of use of the toilet. Further, the odor sensor 11 detects the concentration of the odor component generated from the adsorbent 23 on a daily basis, and transmits this signal to the control means 24.

In this embodiment, the control means 24 controls the intake means 21 at the moment when the presence of a human body is detected by the pressure sensor 10.
Is started, and the odor generated from the Western toilet 1 is sucked into the toilet deodorizer main body 6 to perform deodorization processing. The use of the toilet may be started, for example, by providing an infrared sensor in the toilet space and transmitting a detection signal of the infrared sensor to the control unit 24. In other words, when infrared light emitted from the human body is detected by the infrared sensor, it is when a person enters the toilet space,
That is, it is when the use of the toilet is started, and when the infrared sensor stops detecting the infrared ray, it can be recognized that the use of the toilet is finished.

Therefore, as described in the first embodiment, the user can comfortably use the toilet without feeling the smell of the toilet.

Further, in this embodiment, the control means 24 executes the regeneration of the adsorbent 23 in accordance with the signal of the odor sensor 11 on a daily basis. That is, when the signal of the odor sensor 11 exceeds the reference value of the control means 24, the air blowing means 21 is operated to ventilate fresh air.

For this reason, the adsorbent 23 is regenerated on a daily basis, and the user does not feel odor.

The following is a description of the effect of the present embodiment.
The result of the experiment described above will be described. This experiment is a four person house
The device with the above configuration was actually used under the
It is a strike. At this time, the intake means
The ventilation air volume of 21 is 0.2m ^ThreeSet to / minute
It is. The regeneration of the adsorbent 23 is performed by using fresh air for 2 hours.
It is done by ventilating for hours.

As a result of this evaluation test, no odor was felt during use of the toilet, and no odor or discomfort was felt even if another person immediately entered the room after using the toilet. Not something.

Further, in the present embodiment, the regeneration is performed based on the signal of the odor sensor 11 two weeks after the start of use, and the ventilation regeneration is performed for two hours at this time. . After that, the detection signal of the odor sensor 11 exceeds the reference value approximately every two days, and the ventilation regeneration is performed for two hours each time.

Thus, during the test period of about 3 months, it was possible to confirm that the initial performance could be maintained by the regeneration by ventilation without feeling any odor.

As described above, according to the present embodiment, the control means 24 determines the timing of the regeneration of the adsorbent 23 based on the signal of the odor sensor 11 which is the first detection means. Is clear, and the adsorbent 23 can be reliably regenerated without waste.

Embodiment 3 Next, a third embodiment of the present invention will be described. In the present embodiment, the control unit 24 is configured to instruct regeneration of the adsorbent 23 during a specific time zone. That is, between 2 am and 2 hours every day, the intake means 21 is energized to allow fresh air to flow through the adsorbent 23. That is, a time zone generally regarded as a bedtime is designated as the specific time zone.

Thus, the same experiment as described in the second embodiment is performed to confirm this effect. As a result of this experiment, no odor was felt during use of the toilet, and no odor or discomfort was felt even if another person entered the room immediately after use of the toilet.

The test period was 3 months, during which time no odor was felt, and the adsorbent 23 maintained its initial performance. That is, since the control unit 24 is configured to energize the suction unit 21 for two hours during a specific time period and to regenerate the adsorbent 23 every day, the adsorbent 23 is surely regenerated.

At this time, in the present embodiment, a specific time zone from 2:00 am to 4:00 am is specified, but it is not particularly limited to this time zone. In other words, by designating the non-use time period of the toilet, the air taken in by the intake means 21 can be used as fresh air, and the toilet user can feel the toilet odor when entering the toilet. If not, it is good.

(Embodiment 4) Next, a fourth embodiment of the present invention will be described. In this embodiment, the control program at the time of reproduction provided in the control means 24 is set so that the energization time to the suction means 21 is set to 10 minutes or more and 10 hours or less per day.

With the above configuration, the adsorbent 2
No. 3 can be sufficiently regenerated, and the user does not feel the smell of the toilet even when repeatedly used.

Hereinafter, the results of experiments performed to verify the effects of the present embodiment will be reported. In this experiment, the reproduction time was changed once a day from 2:00 am to 1 minute, 5 minutes, 10 minutes, 30 minutes.
Minutes and one hour, the test is performed continuously under these conditions for one month. The results of this experiment are shown in (Table 1).

[0068]

[Table 1]

As can be understood from Table 1, when the regeneration time is 1 minute, the regeneration is not sufficient, and the sensory test after one month gives a odor that can be recognized as a toilet odor. When the reproduction time is 5 minutes, some smell is felt but cannot be recognized as toilet odor. The playback time is 1
No odor is sensed after 0 minutes. Therefore, in the present embodiment, if the reproduction is performed once a day as a reproduction time, a reproduction time of 10 minutes or more is required.

The adsorbent 23 can be regenerated more reliably if the regenerating time is extended to 1 hour or 2 hours. However, in the present embodiment, the adsorbent 23 is extended to 10 hours or more in consideration of the actual use of the toilet. Is set to 10 hours or less.

(Embodiment 5) Next, a fifth embodiment of the present invention will be described. In the present embodiment, the suction means 21 is operated continuously after the control means 24 has finished using the toilet. That is, after the control means 24 recognizes that the use of the toilet has been completed from the signal of the pressure sensor 10 shown in FIG. 6, the suction means 21 is continuously operated for 5 minutes. The use of the toilet may be terminated, for example, by providing an infrared sensor in the toilet space and transmitting a detection signal of the infrared sensor to the control unit 24. In other words, when infrared light emitted from the human body is detected by the infrared sensor, there is a person in the toilet space, that is, the toilet is in use, and when the infrared sensor stops detecting infrared light, it is recognized that the toilet has been used. You can do it.

Therefore, each time the toilet is used, the adsorbent 23 is surely regenerated, and the toilet can be used without feeling the smell of the toilet.

Hereinafter, the results of an experiment performed to verify the effect of the present embodiment will be reported. In this experiment, using the device having the above-mentioned configuration, that is, the device having the configuration in which the suction means 21 is continuously operated for 5 minutes after the use of the toilet is completed, the device is actually used for three months. During this time, they are investigating whether or not they feel toilet odor.

As a result of this experiment, no odor was felt during use of the toilet, and no odor or discomfort was felt even if another person entered the room immediately after using the toilet. Was something. Although the test period was three months, no odor was felt during that period, and the adsorbent 23 maintained its initial performance.

That is, as a result of this experiment, it can be confirmed that the adsorbent 23 is reliably regenerated by operating the suction means 21 continuously after the use of the toilet is finished. It is considered that the reason for this is that, in the physical adsorption, once the adsorbed odor component is allowed to stand for a long period of time, it diffuses into the pores of the adsorbent and is hardly desorbed. Therefore, as in this embodiment, if fresh air is ventilated immediately after adsorbing the odor, desorption is effectively promoted,
Reproduction is assured.

As described above, by automatically operating the suction means 21 continuously for a certain period of time after the use of the toilet, the adsorbent 23 is surely regenerated every time the toilet is used, and the high-performance toilet deodorization. Machine.

(Embodiment 6) Next, a sixth embodiment of the present invention will be described. In the present embodiment, the control means 24 is configured to control the air intake time of the blower means 21 at the time of reproduction to be not less than 1 minute and not more than 30 minutes per toilet use. With this configuration, the adsorbent 23 can be reliably regenerated, and the toilet can be used without feeling the toilet odor.

Hereinafter, the results of experiments performed to verify the effects of the present embodiment will be reported. In this experiment, a sensory test was performed to determine whether or not odor was felt one month after the use of the device having the above-described configuration, that is, after ending the use of the toilet and changing the time for continuously operating the blower 21. Is what it is. That is, the operation time of the air blowing means 21 is set to 10 seconds to 10 minutes each time, and when actually used for one month, it is checked whether or not a toilet odor is sensed after one month. The results of this experiment are shown in (Table 2).

[0079]

[Table 2]

As can be seen from (Table 2), the reproduction is not sufficient in 10 seconds, and the odor can be recognized as a toilet. At 30 seconds, some smell is felt but cannot be recognized as toilet odor. In addition, the result is that no odor is felt for 1 minute or more. For this reason, in the present embodiment, it can be understood that when the reproduction is performed every time the toilet is used, the reproduction time is 1 minute or more. At this time, if the reproduction time is increased to 10 minutes or 30 minutes, the reproduction can be performed more reliably. However, considering the actual use of the toilet, increasing the reproduction time to 30 minutes or more may hinder actual use. In the embodiment, 30 minutes is set as an upper limit.

As described above, in the present embodiment, the intake time during reproduction is set to be 1 minute or more and 30 minutes or less per use of the toilet.
By setting the time in the range of not less than 30 minutes and not more than 30 minutes, it is possible to reliably regenerate the adsorbent 23 without hindering use of the toilet.

(Embodiment 7) Next, a seventh embodiment of the present invention will be described. In the present embodiment, the control means 24 sets the amount of air to be blown when the air blowing means 21 is driven at the time of reproduction to 0.1.
The setting is not less than 01 m ³ / min and not more than 0.2 m ³ / min. With this configuration, the adsorbent 23 can be reliably and quietly reproduced.

Hereinafter, the results of experiments performed to verify the effects of the present embodiment will be reported. In this experiment, as in the experiment in Example 1, a cycle in which 1 ppm of dimethyl disulfide was passed for 1 minute and fresh air was passed for 10 minutes was repeated to check the change over time in the removal rate. At this time, the setting of the amount of ventilation air at the time of reproduction is changed from 0 to 0.2 m ³ / min. The ventilation air flow of 0 m ³ / min means that the air is left standing without ventilation.

FIG. 8 shows the results of this experiment. In this experiment, as in the experiment in Example 1, the ventilation time of fresh air is shown without counting the ventilation time.

As can be understood from FIG. 8, the ventilation air volume is 0 m.
³ / min, that is, a certain amount of regeneration can be achieved by standing still for 10 minutes without ventilation, but the ventilation air volume is reduced to 0.01 m
^By setting the rate to ³ / min or more, the regeneration efficiency is increased, and the removal rate of dimethyl disulfide is kept high.

At this time, the inventors are also examining the relationship between the amount of ventilation air and noise. In the measurement of the noise, the noise is measured at a distance of 1 m in front of the main body 6 of the toilet deodorizer when the air flow rate of the intake means 21 is set to a predetermined value. The result of this experiment is shown in FIG.

As can be understood from FIG.
In both cases, the noise also increases, especially when the air volume is 0.2
m^Three/ Min, the noise also exceeds 40 dB
You. Therefore, the control unit 24 of the present embodiment is
The upper limit of ventilation air volume of 0.2m ^ThreeSet to / minute
It is.

As described above, the control means 24 of this embodiment can reliably and quietly regenerate the adsorbent 23 by setting the ventilation air volume at the time of regeneration at 0.01 m ³ / min to 0.2 m ³ / min. This is a toilet deodorizer.

[0089]

According to the first aspect of the present invention, there is provided an adsorbent for adsorbing an odor, and a blower for sending air in the toilet to the adsorber. The blower is operated when the toilet is not used. As a method of operating a toilet deodorizer that regenerates an adsorbent, an adsorbent can be easily regenerated and a toilet deodorizer that can be used for a long period of time is realized.

The invention according to claim 2 is provided with a control means for operating the air blowing means in accordance with an operation instruction of the operating means, and the control means is configured to operate the air blowing means for a longer time than a single toilet use. With such a configuration, the adsorbent can be regenerated, and a long-life toilet deodorizer can be realized.

According to a third aspect of the present invention, there is provided an adsorbent for adsorbing an odor, a blower for sending air in the toilet to the adsorber, a controller for controlling the operation of the blower, and a state of use of the toilet. When the control means detects the use of the toilet by the sensor, the control means operates the blower means and determines the timing of the regeneration of the adsorbent when the toilet is not in use, so that the control means is surely provided. An object of the present invention is to realize a toilet deodorizer capable of regenerating an adsorbent without waste.

The invention described in claim 4 realizes a toilet deodorizer capable of reliably and efficiently regenerating an adsorbent as a sensor as a first detecting means for outputting a signal corresponding to an odor. Things.

According to a fifth aspect of the present invention, the control means instructs the regeneration of the adsorbent during a specific time zone, so that the deodorizing device for the toilet can regenerate the adsorbent without any trouble in using the toilet. Machine.

According to the sixth aspect of the present invention, the suction time during the regeneration is set to be 10 minutes or more and 10 hours or less per day, so that the adsorbent can be regenerated without waste and the exchange of the adsorbent is unnecessary. It realizes a simple toilet deodorizer.

According to a seventh aspect of the present invention, the control means comprises:
As a configuration in which the suction means is continuously operated even after using the toilet, a toilet deodorizer capable of reliably regenerating the adsorbent is realized.

[0096] The invention according to claim 8 is provided with a second detecting means for detecting the end of use of the toilet, wherein the suction means is continuously operated even after the use of the toilet by the signal of the second detecting means. This realizes a toilet deodorizer that can automatically regenerate the adsorbent.

According to the ninth aspect of the present invention, the air intake time at the time of reproduction is set to be not less than 1 minute and not more than 30 minutes per use of the toilet, without waste, without fail, and without impeding the use of the toilet. It is intended to realize a toilet deodorizer capable of regenerating the adsorbent.

[0098] The invention according to claim 10 has a structure in which the amount of intake air at the time of regeneration is set to 0.01 m ³ / min or more and 0.2 m ³ / min or less. It realizes a deodorizer.

According to the eleventh aspect of the present invention, the adsorbent comprises:
Manganese, copper, cobalt, in addition to the metal oxide or composite oxide containing at least one type of zinc, zeolite, silica, as a porous adsorbent carrying an adsorbent containing at least one type of alumina, An object of the present invention is to realize a toilet deodorizer capable of efficiently deodorizing odors in the toilet.

According to the twelfth aspect of the present invention, the porous body is formed of a honeycomb body, which realizes a compact toilet deodorizer which can remove odors with high efficiency and has a small ventilation resistance. It is.

According to a thirteenth aspect of the present invention, the amount of the adsorbent carried is 0.05% per cubic centimeter of the honeycomb body.
With a configuration of not less than g and not more than 0.2 g, an odor adsorption capacity can be ensured and a toilet deodorizer free from clogging is realized.

[Brief description of the drawings]

FIG. 1 is a side view showing a configuration of a toilet deodorizer according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing the structure of the toilet deodorizer main body.

FIG. 3 is a characteristic diagram showing a change over time in the removal rate of dimethyl disulfide.

FIG. 4 is a characteristic diagram showing characteristics of pressure loss when the shape of the adsorbent is changed.

FIG. 5 is a characteristic diagram showing characteristics of the removal rate of hydrogen sulfide when the amount of supported catalyst is changed.

FIG. 6 is a side view showing a configuration of a toilet deodorizer which is a second experimental example of the present invention.

FIG. 7 is a sectional view showing the structure of the toilet deodorizer main body.

FIG. 8 is a characteristic diagram showing the change over time of the removal rate of dimethyl disulfide when the amount of ventilation air is changed.

FIG. 9 is a characteristic diagram showing a relationship between the amount of ventilation air and noise.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Western-style toilet bowl 2 Toilet seat 3 Lid 4 Inlet port 5 Connection part 6 Toilet deodorizer main body 10 Pressure sensor (second detection means) 11 Odor sensor (first detection means) 21 Suction means 23 Adsorbent 24 Control means

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B01D 53/81 B01J 20/28 A B01J 20/18 20/34 F 20/28 E03D 9/00 B 20 / 34 B01D 53/34 116B E03D 9/00 (72) Inventor Kunikazu Kuchino 1006 Kazuma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. In-house (72) Inventor Shiro Takeshita 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture F-term in Matsushita Electric Industrial Co., Ltd. (reference) MM06 NN03 NN04 NN06 QQ17 4D002 AA03 AA06 AA13 AB02 BA04 DA11 DA21 DA23 DA24 DA45 DA46 EA08 GA01 GA02 GA03 GB02 GB20 HA01 HA03 4D012 CA09 CB02 CD10 CE01 CE02 CE03 CF01 CF05 CF10 CG01 CG03 4G066 AA15B AA18B AA20B AA22B AA26B AA27B AA61B AA72C BA07 CA02 CA24 CA25 CA29 DA02 EA20 GA06 GA27 GA31 GA35

Claims (13)

[Claims] 1. A deodorizer for a toilet, comprising: an adsorbent for adsorbing an odor; and a blower for sending air in the toilet to the adsorber, wherein the blower is operated when the toilet is not in use to regenerate the adsorber. Driving method. 2. A toilet deodorizer for operating a blower in accordance with an operation instruction of an operating means, wherein the control means operates the blower for a longer time than a single toilet use. 3. An adsorbent for adsorbing an odor, a blower for sending air in the toilet to the adsorber, a controller for controlling the operation of the blower, and a sensor for detecting a use condition of the toilet. When the control unit detects the use of the toilet by the sensor, the control unit activates the air blowing unit and determines the regeneration timing of the adsorbent when the toilet is not used. 4. The toilet deodorizer according to claim 3, wherein the sensor is a first detecting means for outputting a signal corresponding to the odor. 5. The toilet deodorizer according to claim 2, wherein the control means instructs regeneration of the adsorbent during a specific time zone. 6. The toilet deodorizer according to any one of claims 2 to 5, wherein the air intake time at the time of reproduction is 10 minutes or more and 10 hours or less per day. 7. The toilet deodorizer according to claim 2, wherein the control means activates the suction means continuously even after using the toilet. 8. The deodorizer for toilet according to claim 7, further comprising a second detecting means for detecting the end of use of the toilet, wherein the signal from the second detecting means causes the suction means to be continuously operated even after using the toilet. . 9. The toilet deodorizer according to claim 7, wherein the air intake time at the time of reproduction is 1 minute or more and 30 minutes or less per toilet use. 10. The toilet deodorizer according to any one of claims 1 to 9, wherein an intake air volume at the time of reproduction is set to 0.01 m ³ / min or more and 0.2 m ³ / min or less. 11. The adsorbent comprises manganese, copper, cobalt,
The porous adsorbent according to any one of claims 1 to 10, wherein the porous adsorbent carries an adsorbent containing at least one of zeolite, silica, and alumina in addition to a metal oxide or a composite oxide containing at least one of zinc. The deodorizer for toilet described in the paragraph. 12. The porous body is a honeycomb body.
2. The toilet deodorizer according to 1. 13. The toilet deodorizer according to claim 12, wherein the amount of the adsorbent carried is 0.05 g or more and 0.2 g or less per cubic centimeter of the honeycomb body.