JPH073859A - Feed water controller - Google Patents

Abstract

PURPOSE:To effectively deodorize, by adding an adsorptive catalyst on deodorizing and passing the suction air together with generated ozone through the catalyst. CONSTITUTION:The suction side (a) of a deodorizing device 2 extended and also suspended from the outer peripheral edge of a toilet seat 1 is connected to the suction opening 4 at the bottom face through the air path 3 in the toilet seat 1. An ozone generator 6, a catalyst 7, and a fan 8 are set in sequence in a ventilation path 5 from the suction side (a) to the delivery side (b). The air in toilet stool is sucked as much as 7-35 times of the volume in the toilet stool per min. to conduct it to the catalyst. Ozone is here generated so that the ozone concentration reaches the range 0.5-2ppm. The sucked air and ozone gas is conducted to the honeycomb-shaped catalyst which has a specific surface area with 50m<2>/g or more and a contact area with 0.01-0.35m<2> per air volume of 1m<3>/hr and further, the number of cell with 100-400 cell/sq. inch. The deodorizing device 2 is operated before use of the toilet and forced to continuously operate for more than one minute after use.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention sucks odors in a toilet bowl,
The present invention relates to a deodorizing method of catalytically decomposing by ozone.

[0002]

2. Description of the Related Art In recent years, interest in bad odors has increased, and social demands for removing bad odors from toilets have become stronger. Aroma components generated in the toilet may include ammonia, hydrogen sulfide, methyl mercaptan, trimethylamine and acetaldehyde.
There are the following methods (1) to (3) as deodorization measures. (1) A method of forcibly exhausting to the outside using an exhaust fan (2) A deodorizing suction / exhaust path is provided in the toilet bowl, a deodorant is installed in the path, and the air that has passed through the deodorant is put into the room. Exhaust method (3) Masking method with fragrance

However, the method (1) of simply exhausting odorous air to the outside has become difficult in view of recent densely packed housing conditions. Also, use deodorant
The method (2) has a drawback that it is necessary to replace the deodorant regularly. Furthermore, the method of (3) by masking has a problem that the fundamental malodorous component cannot be removed.

[0004]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention Therefore, an object of the present invention is to solve the above-mentioned conventional drawbacks by efficiently deodorizing the odors in the toilet, and capable of expecting a deodorizing effect for many years. To provide a method.

[0005]

[Means for Solving Problems] A toilet deodorization method using ozone is a method for treating a malodorous component by utilizing the strong oxidizing action of ozone. However, the problem of the amount of air sucked from the toilet bowl There are problems such as the problem of catalyst usage, the cost of equipment, and the cost of running costs, and it is very important to set optimum usage conditions.

Therefore, as a result of intensive studies in consideration of the above problems, the present inventor has invented the following deodorizing method.
That is, in the toilet deodorizing method of the present invention, in order to prevent the odor from being accumulated in the toilet, in the deodorizing toilet equipped with the deodorizing device consisting of the ozone generator, the catalyst and the fan, the air in the toilet is blown by the fan for 1 minute. The volume of air per 7 to 35 times the volume of the toilet bowl is sucked into the ozone generator and the ozone concentration is 0.05 to 2 ppm.
Ozone is generated in such a range that the specific surface area is 50 m ² / g or more, the contact area is 0.01 to 0.35 m ² per 1 m ³ / hr of air volume, and 10
The catalyst is connected to a honeycomb-shaped catalyst having a cell number of 0 to 400 cells / inch ² , and the deodorizing device is operated before the use of the toilet and continued to be operated for 1 minute or more after the use of the toilet.

In the present invention, the suction air volume is premised on the fact that the odor in the toilet does not diffuse into the toilet. However, if the suction air volume per minute is 7 times or less of the volume in the toilet, the odor is sufficiently deodorized. It is not preferable because it is not sucked into the device and diffuses into the toilet. If the ratio is 35 times or more, it is not enough in the sense that the odor is sucked into the deodorizing device, the amount of treated air increases, the deodorizing efficiency decreases, and it feels cold during use of the toilet, which is not preferable.

The ozone generation concentration is 0.05 to 2 ppm, preferably 0.1 to 2 ppm. If it is less than 0.05 ppm, the deodorizing effect is lowered, and if it is 2 ppm or more, there is no problem in the deodorizing effect, but it is not preferable because waste of treating excess ozone occurs.

The catalyst used is preferably one having a high odor component decomposing ability and a high odor component adsorbing ability, and a honeycomb shape is preferable in view of problems of pressure loss, dust clogging, etc., and particularly 100 to 400 cells / inch ² A honeycomb shape having a cell number of is preferable. The shape of the honeycomb-shaped cells is not particularly limited, and may be any shape such as a lattice shape, a triangular shape, a hexagonal shape, or a corrugated shape. Further, in order to obtain a predetermined adsorption capacity, the larger the specific surface area of the catalyst is, the smaller the amount of the catalyst is, so that the apparatus can be downsized. Therefore, the specific surface area of the catalyst is preferably 50 m ² or more. Further, if the contact surface area of the catalyst per unit air volume is also small, the deodorizing effect may be insufficient, and if it is large, pressure loss may increase and clogging due to dust may occur, so that the unit air volume is 1 m ³ / hr. Contact surface area
It is preferably 0.01 to 0.35 m ² . The catalyst molding method is not particularly limited, and examples thereof include an extrusion molding method and a molding method by corrugating ceramic paper.

The deodorizing device is operated for a certain period of time before the use of the toilet, that is, when it is seated on the toilet seat is detected by the sensor, and after the use, that is, when the user leaves the seat, is detected by the sensor and the timer expires. If the operating time of the deodorizing device after using the toilet is too short, the treatment of the odorous component adsorbed by the catalyst and remaining is insufficient, and it is preferably 1 minute or longer, more preferably 3 minutes or longer. On the other hand, if it is too long, it consumes power unnecessarily, which is disadvantageous. It is recommended that the operating time of the deodorizing device after using the toilet be within 15 minutes. Examples of the sensor include a sensor sensitive to seat pressure or an infrared sensor.

In the toilet deodorizing method of the present invention, the deodorizing device is set on the toilet seat of a Western-style flush toilet, or the deodorizing device is installed near the toilet and the deodorizing device and the toilet are connected by a suction path, or It is possible to put it on a toilet seat or skirt part of a top-mounted stool that can be changed to a Western type by placing it on a Japanese style toilet, and further, it may be attached to the toilet seat or skirt part of a portable toilet for the sick or infant. .

Considering the deodorizing mechanism in the method of the present invention, the odorous component sucked in the deodorizing device and the ozone generated from the ozonizer are adsorbed by the catalyst, and the ozone attacks the odorous component on the catalyst to oxidize and decompose it. Things can be considered. When the amount of odor component is temporarily larger than the amount of ozone, it is necessary to adsorb the undecomposed odor component so that it is not released to the outside of the system. Even if the undecomposed odor component is adsorbed even after using the toilet, it is possible to completely remove the odor component by continuing to generate ozone in an amount equal to or more than the amount required to decompose the undecomposed odor component. From the above, it is preferable that the catalyst has a high ability to adsorb odorous components.

[0013]

[Function] The catalyst has a high ability to decompose odor components and has a high ability to absorb odor components, and deodorizes the odor by adding adsorption of the odor by the catalyst. The generated concentration can be lowered, and the capacity of the ozonizer can be reduced, which is effective for downsizing the device.Furthermore, the pressure loss of the catalyst is low, dust is not clogged, and the suction air volume is odorless. In addition to the proper air volume that does not cause leakage and cold during use, and the ozone generation concentration is a proper concentration that does not waste or leak due to insufficient deodorization or treatment of excess ozone, the odor in the toilet Can be efficiently deodorized. Moreover,
Since an unnecessary amount of ozone and an amount of catalyst are not used, it is economical and can maintain a good deodorizing effect for many years. In addition, since the deodorizing device is operated before the use of the toilet and continues to be operated for 1 minute or more even after the use of the toilet, it is possible to process the odorous components remaining after being adsorbed by the catalyst, resulting in insufficient deodorization. A good deodorizing state that can be used comfortably is obtained.

[0014]

EXAMPLES A toilet deodorizing method of the present invention will be described below by exemplifying a toilet deodorizing apparatus for carrying out the method. In the toilet deodorizing device A illustrated in FIGS. 1 to 3, the toilet seat 1 of the Western-style flush toilet B is equipped with the deodorizing device 2.

The deodorizing device 2 is hung vertically on the outer edge of the toilet seat 1, and the intake side a of the device 2 communicates with the intake port 4 at the bottom of the toilet seat via the air passage 3 in the toilet seat 1. is doing.

In the deodorizing device 2, an ozone generator 6, a catalyst 7 and a fan 8 are arranged in this order from the intake side a in a ventilation system path 5 extending from the intake side a to the exhaust side b.

The ozone generator 6 is a transformer (not shown).
A high voltage is applied to generate ozone. The concentration of ozone generated by the ozone generator 6 is adjusted in the range of 0.05 to 2 ppm.

The catalyst 7 is a carrier of alumina, silica-alumina, zirconia, titanium, diatomaceous earth, silica-titania, silica-zirconia, titania-zirconia, etc.
n, Ag, Fe, Co, Zn, Ni, Pt, Pd, R
Those that carry oxides or metals such as h, are used.

The catalyst 7 has a specific surface area of 50 m ² / g or more and a contact area of 0.01 to 0.35 m ² per 1 m ³ / hr of air flow.
And a honeycomb-shaped catalyst having a cell number of 100 to 400 cells / inch ² .

The fan 8 is a fan with a motor.
Has a suction capacity of 7 to 35 times the internal volume of the toilet bowl B per minute.

The deodorizing device is operated manually or automatically, that is, before the toilet is used, that is, when the user sits down on the toilet seat, the sensor 9 senses the operation, and the deodorizing device operates through the control unit 10, and after use, that is, when the user leaves the toilet seat. After that, the sensor 9 detects that the user is away from the seat and the timer of the control unit is activated, so that the timer operates for a time set by the timer, for example, 1 minute or more, preferably 3 to 15 minutes, and the set time is set. The operation is automatically stopped after a lapse of time.

In the toilet deodorizing apparatus A ₁ illustrated in FIG. 4, a Japanese style flush toilet bowl B ₁ installed on a raised floor above the floor.
1 is equipped with a deodorizing device 2 on a toilet seat 12 of an upright sitting stool 11, and the configuration of the deodorizing device 2 and the toilet seat 12 and the configuration of the relationship between the toilet seat 12 and the deodorizing device 2 are the same as those of the embodiment illustrated in FIG. Since the configuration is basically the same as that of the above, description thereof will be omitted.

In the toilet deodorizing apparatus A ₂ illustrated in FIG. 5, the deodorizing apparatus 2 is provided on the toilet seat 14 of the upper stool 13 of the Japanese style flush toilet B ₁ installed on the stepless floor, Structure of this deodorizing device 2 and toilet seat 14, and toilet seat 14
The configuration of the relationship between the deodorizing device 2 and the deodorizing device 2 is basically the same as that of the embodiment illustrated in FIG.

In the toilet deodorizing apparatus A ₃ illustrated in FIG. 6, the deodorizing apparatus 2 is provided on the skirt portion 16 of the top-mounted stool 15 of the Japanese style flush toilet B ₁ installed on the stepless floor. The deodorizing device 2 is disposed on the upper outer surface of the skirt portion 16, and the intake side a of the device 2 is directed toward the inside of the skirt portion 16 through the air passage 18 in the upper edge portion 17 of the skirt portion 16. It communicates with the open intake port 19. The configuration of the deodorizing device 2 is basically the same as that of the embodiment illustrated in FIG.

In the toilet deodorizing apparatus A ₄ illustrated in FIG. 7, the deodorizing apparatus 2 is provided on the skirt portion 20 of the portable toilet bowl B ₂ .

The deodorizing device 2 is disposed on the upper outer surface of the skirt portion 20, and the intake side a of the deodorizing device 2 communicates with the ventilation passage 22 in the upper edge portion 21 of the skirt portion 20, and Via the air passage 22, it communicates with the intake port 25 of the upper edge portion 21 which is opened between the toilet seat 23 and the container 24. Since the configuration of the deodorizing device 2 is basically the same as that illustrated in FIG. 1, description thereof will be omitted.

In the toilet deodorizing apparatus A ₅ illustrated in FIG. 8, the toilet seat 26 of the Western-style flush toilet B and the floor-standing type deodorizing apparatus 2 are connected by a ventilation hose 27. Communicates with an intake port 29 at the bottom of the toilet seat via a ventilation hose 27 and a ventilation passage 28 in the toilet seat 26. Deodorizer 2 is a leg
It is a floor-standing type having 30 and its configuration is basically the same as that of the embodiment illustrated in FIG.

With each of the toilet deodorizing devices A to A ₅ , the odor in the toilet bowls B to B ₂ is deodorized by the deodorizing device 2, and the amount of air sucked from the toilet bowl is 7 to 35 times the volume of the toilet bowl per minute, and ozone is generated. When the concentration is 0.05 to 2ppm, the specific surface area is
At 50m ² / g or more, the contact area is 0.0 per 1m ³ / hr of air volume.
Deodorization can be continued through the honeycomb-shaped catalyst 7 having a cell number of 1 to 0.35 m ² and a cell number of 100 to 400 cells / inch ² , and the toilet deodorizing method of the present invention can be carried out.

Incidentally, the toilet deodorizing device A illustrated in FIG.
An example of experiment by is shown. Experiment, ozone generation concentration: 0.5pp
m, suction air volume: 17 times the volume of the toilet bowl, catalyst: 210 cells /
The honeycomb shape was inch ² , and the specific surface area was 120 m ² , the contact area was 0.035 m ² per 1 m ³ / hr of air flow, and the operation time was from before use to 7 minutes after use. As a result of the experiment, all 45 panelists did not have an odor.

[0030]

Therefore, the present invention has the following advantages. That is, the catalyst has a high odor component decomposing ability and a high odor component adsorbing ability, and deodorizes the odor by adding the adsorption of the odor by the catalyst. Since the concentration can be lowered and the capacity of the ozonizer can be reduced, it is effective for downsizing the device, and also the pressure loss of the catalyst is low, dust is not clogged, and the suction air volume is odorless. In combination with the proper air volume without emission and leakage and cold during use, and the ozone generation concentration being a proper concentration without waste or leakage for the deodorization shortage and treatment of excess ozone, It can deodorize efficiently.

Moreover, since an unnecessary amount of ozone and an excessive amount of catalyst are not used, it is economical and can maintain a good deodorizing effect for many years.

Further, since the deodorizing device is operated before the use of the toilet and is kept operating for 1 minute or more after the use of the toilet, it is possible to treat the odorous components remaining after being adsorbed on the catalyst. The deodorization deficiency is eliminated, and a good deodorization state that can be used comfortably is obtained.

[Brief description of drawings]

FIG. 1 is a plan view of a toilet deodorizing device for a Western-style flush toilet adopted for implementing the toilet deodorizing method of the present invention.

FIG. 2 is an enlarged vertical sectional view taken along line II-II in FIG.

FIG. 3 is an enlarged vertical sectional view taken along the line III-III in FIG.

FIG. 4 is a perspective view of a toilet deodorizing device of a Japanese style flush toilet.

FIG. 5 is a perspective view illustrating another toilet deodorizing device of a Japanese style flush toilet.

FIG. 6 is a front view showing the toilet deodorizing device of the Japanese-style flush toilet with a part thereof cut away.

FIG. 7 is a partially cutaway front view illustrating a toilet deodorizing device for a portable toilet.

FIG. 8 is a partial vertical cross-sectional view illustrating a separate type toilet deodorizing device for a Western-style flush toilet.

FIG. 9 is a block diagram of a sensor, a control unit, and a deodorizing device.

FIG. 10 is a flowchart of the same.

[Explanation of symbols]

A, A ₁ , A ₂ , A ₃ , A ₄ and A ₅ are toilet deodorizers B, B ₁ and B ₂ are toilet bowls a are intake sides b are exhaust sides 2 deodorizers 6 are ozone generators 7 are catalysts 8 Is a fan

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akira Inoue 1 of 992 Nishikioki, Kamahama, Aboshi-ku, Himeji-shi, Hyogo Japan Catalysis Research Institute, Inc.

Claims (1)

[Claims] 1. A deodorizing toilet equipped with an ozone generating device, a catalyst and a deodorizing device composed of a fan, wherein the fan sucks the air in the toilet at an amount of 7 to 35 times the volume of the toilet internal volume per minute. The ozone is generated by the ozone generator so that the ozone concentration is in the range of 0.05 to 2 ppm. The suction air and ozone have a specific surface area of 50 m ² / g or more, and the contact area is the air volume. 1m ³ /
an hr per 0.01～0.35M ^2, and with leads to a catalyst having a honeycomb shape with a number of 100 to 400 cells / inch ² cells, deodorizing apparatus is operated before using the toilet starts, more than 1 minute after toilet A deodorizing method for toilets characterized by keeping it running.