JPH04210210A - Ozone deodorizer - Google Patents

Abstract

PURPOSE:To sufficiently perform deodorization by decomposing ozone into active oxygen and oxygen by a catalyst and reacting active oxygen with an offensive odor component and heating the catalyst by a heater therefor in the case of mixing this offensive odor with ozone to deodore the offensive odor. CONSTITUTION:When a person is seated on the seat 2 of a closet fitted with an ozone deodorizer, a seating sensor S1 provided to the rear part of the seat 2 sends a detection output to a controlling part D. A suction fan F is driven by the driving output sent form this controlling part D and also high voltage is generated in a high voltage generator 19, and an ozonizer 17 is impressed with high voltage. Ozone is generated in an ozone treatment flow path R. Thereby, an offensive odor generated in the space of the inside of the closet main body is sucked into the flow path R and effectively mixed with ozone in the flow path R and deodorizing treatment is performed. Furthermore, when a catalyst is warmed by a heater 32 for heating it, deodorization effect of the catalyst S is enhanced. Deodorization is sufficiently performed and also the residual ozone in exhaust is decomposed by the catalyst S and thereby the concn. of ozone is lowered.

Description

[Detailed description of the invention]

[00011

[Field of Industrial Application] The present invention relates to an ozone deodorizing device that can effectively deodorize bad odors using ozone. [0002] Conventionally, ozone has been used to effectively remove bad odors generated in toilet bowls, refrigerators, and the like. Ozone eliminates odors by oxidizing and decomposing malodorous components through its oxidizing action. [0003] As an ozone deodorizing device used for such purposes, there is one used in a toilet bowl, in which an intake fan, an ozone generator, and a catalyst are placed in order from the upstream side to the downstream side in an ozone flow path case opened in the toilet bowl. are placed. Then, by operating the intake fan, bad odor is sucked into the ozone flow path case, and the sucked bad odor is mixed with ozone from the ozone generator to perform deodorization. [0004] Moreover, such a catalyst promotes the decomposition of ozone into active oxygen and oxygen, causes the active oxygen to chemically change malodorous components, and promotes the deodorizing treatment of malodors by ozone. [0005]

[Problems to be Solved by the Invention] However, such ozone deodorizing devices still have the following problems to be solved. That is, as shown in the graph of FIG. 9, in the ozone deodorizing device, the efficiency of decomposing ozone into active oxygen and oxygen by the catalyst was reduced in the low temperature range of -10°C to 5°C. Therefore, especially in cold regions, ozone deodorization equipment
The decomposition of ozone into active oxygen and oxygen was not promoted, and the deodorizing effect of ozone could not be sufficiently increased. [0006]Furthermore, when the efficiency of decomposing ozone by the catalyst decreases, the ozone in the exhaust from the ozone generator is no longer decomposed by the catalyst, and the concentration of ozone in the exhaust increases, increasing safety for the human body. There was a problem that it was not possible to [0007] An object of the present invention is to provide an ozone deodorizing device that can solve the above problems. [0008]

[Means for Solving the Problems] The present invention provides an ozone deodorizing device that includes an ozone generator that generates ozone, an intake fan that sucks in bad odors, and a catalyst that decomposes ozone. The present invention relates to an ozone deodorizing apparatus characterized in that a warming heater is provided and the heater prevents a decrease in catalyst performance. [0009] Still, the present invention is characterized in that a nichrome wire constituting a heater for heating the catalyst (two catalysts) is disposed inside the catalyst.

[0010] Effects of the Invention: In the present invention, the malodor is inhaled by operating the intake fan in the ozone treatment flow path, and the malodor is mixed with ozone from the ozone generator in the flow path to eliminate the malodor. Deodorization treatment can be performed, and further, ozone can be decomposed into active oxygen and oxygen using a catalyst, and the active oxygen and malodorous components can be reacted to perform deodorization treatment using ozone. Moreover, by heating the catalyst with the catalyst heating heater, the efficiency of decomposing ozone into active oxygen and oxygen can be improved, and sufficient deodorization can be performed by ozone. [00111]Furthermore, by decomposing residual ozone in the exhaust gas with a catalyst, the ozone concentration in the exhaust gas can be sufficiently lowered to improve safety for the human body. [0012] As described above, according to the present invention, by heating the catalyst, the decomposition efficiency of ozone into active oxygen and oxygen can be improved, and deodorization treatment using ozone can be effectively performed. I can do it. [0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained in detail below based on examples shown in the accompanying drawings. 1 and 2 show the overall structure of a seat-type toilet bowl body A incorporating an ozone deodorizing device M according to the present invention. [00141 As shown in the figure, the toilet main body A is provided with a sanitary cleaning device B for private cleaning across the upper surface of the rear side thereof, and the functional part casing 1 of the sanitary cleaning device B is connected to the toilet seat 2 and It is equipped with a toilet lid 3 that can be opened and closed. Inside the functional part casing 1, a hot water tank, a valve unit, etc. for supplying hot water for private part cleaning are arranged, and a private part cleaning nozzle that moves forward and backward toward the ball part a of the toilet main body A is arranged. It is equipped with 4. [0015] In addition to the private part cleaning function, the functional part casing 1 is equipped with a hot air fan 5 and a hot air duct 6 for drying, as described later. Furthermore, a deodorizing duct 7 is provided near the hot air duct 6, and as shown in FIG. It communicates with the deodorizing device M. [0016] In the above overall configuration, first, FIGS. 3 and 4
Based on this, the warm air fan 5 and the hot air duct 6 for forming the heated toilet seat will be described. A hot air duct 6 extends over the middle part 13 of the casing 1, and a hot air outlet 8 is opened at the left side of the middle part of the middle part 1-3 of the casing 1. Note that 1-2 indicates the right shaft portion of the functional unit casing 1, which houses the functional unit of the private part cleaning device. [0017] At the lower position of the warm air duct 6, there is a
As shown in the figure, a deodorizing duct 7 is disposed, and the duct 7 has an inlet 9 at its tip open to the pole part a of the toilet main body A, and from the inlet 9 to the middle part of the casing. 1-3 to the center of the left oil section 1-1, and the terminal end is connected to an ozone treatment flow path R formed in the ozone deodorizing device 1. [0018] As shown in FIG. 4, an exhaust port 10 is formed at the final end of the ozone treatment channel R of the ozone deodorizing device M. Drooping chamber case 1 formed in part 1-1
It opens at the lower end of 1. [0019] In this way, the flow path for deodorizing the bad odor generated in the toilet main body A is formed by the entire flow path from the inlet 9 of the deodorizing duct 7 to the exhaust port 10 of the ozone treatment flow path R. Therefore, an ozone deodorizing device M is interposed between them. In this embodiment, the ozone deodorizing device M includes substantially the chamber case 11 except for the ozone generating section G.
Built-in. [00201 Hereinafter, the configuration of the ozone deodorizing device M will be described with reference to FIGS. 3 to 5. [00211 As shown in FIGS. 3 and 4, the ozone generating section G, which constitutes a part of the ozone deodorizing device M, is disposed in the center of the rear part of the deodorizing duct 7. In this example,
As shown in FIGS. 3 and 4, the ozone generating section G is
A heater 18 is installed vertically in the same direction as the axis of the deodorizing duct 7, and an ozonizer is attached to one side of the heater 18.
17. [0022] Ozonizer 17 is chamber case 11
It is connected to a high voltage generator 19 disposed within the
The generator 19 is connected to the control unit, and based on the drive output from the control unit D (FIG. 2), high voltage is applied from the high voltage generator 19 to the ozonizer 17 to remove ozone from the deodorizing duct 7. can be generated within. Also, heater 1
8 heats the ozonizer 17 and
The aim is to promote ozone generation by [0023] As shown in FIG. 4, the chamber case 11
The ozonation flow path R formed therein is formed in the hollow casing 20 that extends in the vertical direction. The upper part of the ozone treatment channel R communicates with the internal space of the deodorizing duct 7 through the communication port 21. [0024] On the other hand, as shown in FIGS. 4 and 5, in the upper part of the ozone treatment flow path R that forms the downstream side of the ozone generation section G,
An intake fan F is rotatably arranged. In this embodiment, the intake fan F has a blade plate 2 having a plurality of pairs of front and rear disks 22, 23 arranged at intervals in the circumferential direction.
It is formed by sirocco fans connected by 4. [0025] The boss portion 25 of the intake fan F is
It is fixed to an output shaft 26 of a rotary motor disposed at the rear of the hollow casing 20. This intake fan F sucks the malodorous air generated in the toilet main body A through the deodorizing duct 7 into the ozone treatment flow path R, and also converts the ozone generated in the ozone generator G into malodorous air, as will be described later. Can be mixed effectively. [00261] Next, the catalyst S provided in the lower part of the ozone treatment flow path R formed in the hollow casing 20, that is, on the downstream side of the intake fan F, will be explained. The catalyst S promotes the decomposition of ozone into oxygen and active oxygen, thereby promoting the deodorizing effect caused by mixing ozone and bad odor. [0027] Catalyst S has various compositions and forms; for example, it contains MnOz, TiO2, etc. as components,
A honeycomb structure can be used. Such a catalyst S actively decomposes ozone into 03→02 +O-. [0028] And active oxygen 0- is a malodorous component H2S
It reacts with the chemical reaction and changes into H2O and 502, which deodorizes bad odors. In this way, the catalyst S promotes the decomposition of ozone into oxygen and active oxygen, thereby promoting the deodorizing effect caused by mixing ozone and bad odor. [0029] To explain other configurations of the illustrated embodiment, in FIGS. 1 and 2, 30 is an operating section, which is equipped with various operation switches necessary for private part cleaning operations. Further, in FIG. 3, 31 is a motor for driving the hot air fan 5. As shown in FIG. [00301 Furthermore, in the present invention, a catalyst heating heater 32 is attached around the catalyst S, and the heater 32 warms the catalyst S to prevent the performance of the catalyst S from decreasing. The configuration will be explained in detail. That is, the ozone treatment channel R
A heater 32 for heating the catalyst is placed around the hollow casing 20 of
The catalyst S inside the casing 20 is heated through the casing 20. [00311 In this embodiment, as shown in FIG. 6, the catalyst S is heated to 10° C. or higher by the heater 32 to improve its deodorizing effect. Further, a cassette for the catalyst S is detachably attached to the hollow casing 20, and a catalyst heater 32 is built into the cassette so that it can be replaced together with the cassette. [0032] Furthermore, in the present invention, as shown in FIG.
The operation of the heater 32 is controlled when the temperature drops below .degree. [0033] Further, an ozone sensor 33 that detects the concentration of residual ozone in the exhaust gas is connected to the control section, and the catalyst heating state heater 32 is controlled based on the concentration of residual ozone in the exhaust gas from the sensor 33. It is also possible to perform an operation. Then, the ozone sensor 33 detects the concentration of residual ozone in the exhaust gas, and based on the detected value, the catalyst heating heater 3
2 can also be activated. [0034] In this example, titanium, copper, etc. are added to the above-mentioned material forming the catalyst S to make the catalyst S a composite structure, thereby improving the thermal conductivity of the catalyst S. When the catalyst heating heater 32 is operated, the heat is quickly transferred to the catalyst S to heat the catalyst S, thereby smoothly deodorizing the catalyst S. [0035] Further, as an embodiment of the pond, as shown in FIG. 7, the catalyst S disposed in the ozone treatment flow path R has a honeycomb structure, and a heater 32 for heating the catalyst is installed in the communication hole Sa. The nichrome wire 32a is inserted through the same nichrome wire 32a.
2a heats the catalyst S from the inside. Note that 35 indicates a connection cord connected to the nichrome wire 32a. [0036] Further, in FIG. 8, a plurality of catalyst plates 36 are stacked to form a catalyst S, and a nichrome wire 32a is integrally provided on the upper surface of the catalyst plate 36. Furthermore, a terminal 37 of the nichrome wire 32a is attached to the end of the catalyst plate 36.
are provided over the upper and lower surfaces of the plate 36, and when the plates 36 are stacked, each terminal 37 is brought into contact with the plate 36.
This is to energize the nichrome wire 32a of No. 6. [00371 Hereinafter, with reference to FIG. 4, a description will be given of a method for deodorizing the malodor generated in the toilet main body A using the ozone deodorizing apparatus M having the above configuration. [0038] First, when a person sits on the toilet seat 2 of the toilet bowl equipped with an ozone deodorizing device, the seating sensor S1 provided at the rear of the toilet seat 2 sends a detection output to the control unit, and the intake fan is activated by the drive output from the control unit. While driving F, a high voltage is generated in the high voltage generator 19 and applied to the ozonizer 17 to generate ozone in the ozone treatment flow path R. As a result, the bad odor generated in the internal space of the toilet main body A is sucked into the ozone treatment channel R, where it is effectively mixed with ozone and deodorized. [0039] Furthermore, since the catalyst S is disposed on the downstream side of the ozone treatment flow path R, when passing through the catalyst S,
Mixing of the odor and ozone is further promoted, and the deodorization process is further promoted. Thereafter, the completely deodorized exhaust gas is discharged into the toilet space from the exhaust port 10. [00401 Particularly in this embodiment, since the intake fan F is disposed between the ozone generator G and the catalyst S, the ozone generated by the ozone generator G is strongly agitated by the intake fan F, thereby eliminating the odor. It can be diffused and mixed in the air containing Therefore, the deodorizing effect of the catalyst S can be promoted. [00411] In this way, the intake fan F can be used not only for its original intake effect, but also for promoting the deodorizing effect by diffusing and mixing ozone into the foul-smelling air. [0042] Furthermore, when the catalyst S is heated by the catalyst heating heater 32, the deodorizing effect of the catalyst S is improved, and sufficient deodorization is performed. The concentration can also be reduced.

[Brief explanation of the drawing]

FIG. 1 is an overall perspective view of a toilet equipped with an ozone deodorizing device according to the present invention.

FIG. 2 is an overall plan view of the same.

FIG. 3 is a partially cutaway plan view of the main part of the toilet bowl body.

FIG. 4 is a partially cutaway front view of the main part of the ozone deodorizing device.

FIG. 5 is a partially cutaway side view of the main part of the ozone deodorizing device.

FIG. 6 is an explanatory diagram showing the configuration of an ozone deodorizing device.

FIG. 7 is a sectional view showing the structure of a catalyst.

FIG. 8 is an explanatory perspective view showing another configuration of the catalyst.

FIG. 9 is a graph showing the performance of a catalyst depending on temperature.

[Explanation of symbols]

A　Toilet bowl body a Pole part G Ozone generation section M Ozone deodorizing device S catalyst 17 Ozonizer 19 high voltage generator 32　Catalyst heating heater

[Figure 1]

[Figure 3]

Claims (2)

[Claims] Claim 1: An ozone deodorizing device comprising an ozone generator that generates ozone, an intake fan that sucks in bad odors, and a catalyst that decomposes ozone, wherein the catalyst is provided with a heater for heating the catalyst, An ozone deodorizing device characterized by using the same heater to prevent catalyst performance from decreasing. 2. The ozone deodorizing device according to claim 1, wherein a nichrome wire constituting a heater for heating the catalyst is disposed in the catalyst.