JP2001259004A - Deodorizing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a deodorizing device which is small in size and little in electric power consumption and is capable of making efficient deodorization. SOLUTION: The device has a heater 22a for heating a thermal catalyst 21a and a net 23 having a thermal storage property is arranged on the side of the heater 22a opposite to the side facing the thermal catalyst 21a. The heat radiated from the heater 22a to the side opposite to the side where the thermal catalyst 21a exists is accumulated for the heat capacity of the net 23, is reradiated from the net 23 and is utilized for heating of the thermal catalyst 21a. Accordingly, the useless consumption of the heat generated from the heater 22a is averted and the effective utilization of the heat is made possible.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorizer for removing odor by bringing odor into contact with a thermal catalyst.

[0002]

2. Description of the Related Art Organic matter such as garbage is decomposed using microorganisms, and a garbage disposer for performing this treatment is used. When garbage is processed by the garbage disposal machine, an odor is generated, so it is necessary to deodorize and exhaust. When performing this deodorization, the odor generated from the garbage disposer is heated and brought into contact with a thermal catalyst to deodorize.

FIG. 1 shows a conventional deodorizing device 80.
The internal structure of is shown. The odor generated by the garbage disposer and sent by the fan passes through the heat exchanger 81 and then passes through the heater 82.
Is heated to a predetermined temperature (200 ° C. to 300 ° C.) and guided to the thermal catalyst 83. Then, the air is deodorized by the heat catalyst 83 and exhausted through the heat exchanger 81. The heat exchanger 8
No. 1 is installed for effectively reusing heat by giving the heat of the exhaust gas to the odor entering the deodorizing device.

[0004]

In the structure of the deodorizing device, since the heater for heating the odor entering the deodorizing device and the thermal catalyst are separated, the space occupied by the catalyst and the heater becomes large. There has been a problem that the deodorizing device also becomes large-sized accordingly. Therefore, miniaturization of the deodorizing device is required. In addition, since the air is heated, a heater having a large calorific value must be adopted as the heater, and there is a problem that the power consumption of the deodorizing device is large.

Accordingly, an object of the present invention is to realize a deodorizing apparatus which is small in size, consumes less power, and can efficiently deodorize.

[0006]

The deodorizing apparatus according to the present invention comprises a heating means for heating the thermal catalyst, and a heat storage member is provided on a side of the heating means opposite to the side facing the thermal catalyst. It is what is arranged. According to the configuration, the heat radiated from the heating unit to the side opposite to the side where the thermal catalyst is located is:
It is stored for the heat capacity of the heat storage member, re-radiated from the heat storage member, and used to heat the thermal catalyst. Therefore, the heat generated from the heating means can be effectively used without wasting.

[0007] It is desirable that the heat storage member has a shape that does not hinder the flow of the odor as much as possible. For example, the shape is such that many holes are opened like a net. The heat storage member may be a thermal catalyst. If the heating means is arranged on the upstream side of the thermal catalyst, the odor is first warmed by the heat storage member and then further heated by the heating means, so that the efficiency is high. Instead of the heat storage member, a reflecting member that reflects radiant heat from the heating means may be provided. This reflecting member reflects the radiant heat from the heating means and can be used to heat the thermal catalyst. Therefore, the heat generated from the heating means can be effectively used without wasting.

It is desirable that the reflection member has a shape (for example, a shape having a gap) that does not hinder the flow of the odor as much as possible. In addition, it is desirable that the reflection member has a shape that covers the upstream portion of the heating means in order to improve the efficiency of heat reflection. For example, it has a shape of “ku”, a trapezoid, a semicircle, or the like.
If the heating means is arranged on the upstream side of the thermal catalyst, the odor is first warmed by the heat storage member and then further heated by the heating means, so that the efficiency is high.

[0009]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 2 is a schematic diagram showing the entire configuration of the deodorizing device and the garbage disposal machine when the deodorizing device of the present invention is used for deodorizing exhaust gas from the garbage disposal machine. The odor generated from the garbage disposer 2 and forcibly exhausted by the fan 3 enters the deodorizer 1 through the air supply air passage 4. The air deodorized by the deodorizing device 1 is sent out to the exhaust air passage 5 and discharged to the atmosphere.

FIG. 3 is a plan view showing the internal structure of the deodorizing device 1, and FIG. 4 is a front view showing the internal structure of the deodorizing device 1. 3 and 4, a support for supporting the heat exchange unit 11 and the deodorization unit 12 in the deodorization device 1 and the heat exchange unit 11
The illustration of the heat insulating material disposed around the deodorizing section 12 is omitted. Reference numeral 13 denotes a casing, and the casing 1
The heat exchange unit 11 and the deodorizing unit 12 are arranged inside the unit 3. The heat exchange unit 11 is for preheating the relatively low-temperature odor that has entered the deodorizing device 1 through the air supply passage 4 by the high-temperature air deodorized through the deodorizing unit 12.

The odor supplied from the heat exchange section 11 through the internal air passage 14 enters the deodorization section 12 from the lower side (upstream side) of the deodorization section 12 as shown by a thick arrow in FIG. 1
2 is taken out from the upper side (downstream side) and returns to the heat exchange section 11 through the internal air passage 15. Deodorizing part 12
Are heaters 22a, 22b arranged in two stages, catalysts 21a, 21b arranged in two stages, and a heat storage member.
A metal (for example, stainless steel) net or a ceramic (for example, silicon carbide) net (hereinafter referred to as “net”) 23 capable of withstanding high temperatures is provided.

The heaters 22a and 22b are sheathed heaters bent into a U-shape (see FIG. 3). Catalysts 21a, 21b
Is a material in which a platinum-based catalyst or a manganese-based catalyst is supported on porous ceramics or a porous metal body. The catalysts 21a and 21b and the heaters 22a and 22b are arranged alternately. Specifically, the upper catalyst 21b is disposed further above the upper heater 22b. Lower catalyst 2
1a is sandwiched between the heaters 22a and 22b from above and below. The net 23 is arranged further below the lower heater 22a.

FIG. 5 is a perspective view of the lath net 23 when a metal lath net is used as the net. The odor entering the deodorizing section 12 can pass through the lath net 23 without being interrupted by passing through the gap of the lath net 23. FIG. 6 shows the heaters 22 a and 22 b and the thermal catalyst 21.
It is a detailed sectional view (AA sectional view of Drawing 3) showing deodorizing part 12 which stored a and 21b. The peripheral portions of the catalysts 21a and 21b are supported by a sealing material 24, and the sealing material 24 is configured to be attached to the outer wall 26 of the deodorizing section 12. The U-shaped heaters 22a and 22b are shown in FIG.
Are fixed to the outer wall 26 on the left side of the deodorizing section 12, and the electrodes 25a and 25b protrude from the fixing section.

In the above structure, the upper catalyst 21b
Is radiatively heated from below by the upper heater 22b. The lower catalyst 21a includes upper and lower heaters 22a, 22a.
Radiation heating is performed from above and below by b. The mesh 23 is radiantly heated from above by the lower heater 22a. Therefore,
The lower catalyst 21a, which is radiantly heated from above and below, has the highest temperature and has a high deodorizing efficiency. The upper catalyst 21b, which is radiantly heated from below, receives the amount of radiant heat itself which is lower than the lower catalyst 21b.
Although it is less than a, the odor that has passed through the lower-stage catalyst 21a, which has become hot, comes into contact, so that the temperature does not decrease so much and the deodorizing efficiency does not decrease.

The heat radiated from the lower heater 22a downward (toward the anti-heat catalyst side) hits the net 23, so that the net 23 is heated. Heat is generated by the heat capacity of this net 23.
It is stored in the network 23. Then, since the accumulated heat reflects back the lower catalyst 21a, the heating of the lower catalyst 21a can be promoted. In addition, since the heat reflected from the net 23 is uniform on a two-dimensional plane (xy plane shown in FIG. 6), it helps to heat the lower catalyst 21a uniformly in place. Further, the odor supplied from the heat exchange section 11 through the internal air passage 14 and blown up from the lower side of the deodorization section 12 passes through the net 23, and thus the odor is preheated by the presence of the net 23. Can be.

As described above, by providing the net 23 below the lower heater 22a, heat can be efficiently used for deodorization without losing heat. Further, uniform heating of the catalyst 21a can be realized. Although the embodiment of the present invention has been described above, the embodiment of the present invention is not limited to the above. In the above example, two stages of catalyst and the same number of heaters were provided, but the number of stages is not limited to this. For example, as shown in FIG.
It is also possible to adopt a structure having three stages 1b and 21c and the same number of stages of the heaters 22a, 22b and 22c. In this structure, the lower catalyst 21a is radiantly heated from above and below by heaters 22a and 22b, and the middle catalyst 21b is heated by heaters 22b and 22b.
The net 23 is radiantly heated from above and below, and the net 23 is radiantly heated from above by the lowermost heater 22a. Therefore, the function of the network 23 is the same as that described with reference to FIG. The present invention is not limited to three stages, but includes four stages, five stages, and ‥‥ of a catalyst and a heater.

In the above example, the net 2 is used as the heat storage member.
Although 3 was used, the catalyst itself can be used as the heat storage member. FIG. 8 is a cross-sectional view showing the deodorizing section 12 when a catalyst is employed as the heat storage member. As shown,
In place of the net 23, a catalyst 2 is provided below the lower heater 22a.
0 is arranged. This catalyst 20 is provided with a lower heater 22.
Since it is heated from a, the temperature rises to some extent and has a deodorizing function. At the same time, the heat heated by the lower heater 22a is stored, and the heat is re-emitted upward. Further, it also has a function of heating the odor flowing through the catalyst 20.

FIG. 9 is a sectional view showing the deodorizing section 12 provided with a reflecting member for reflecting radiant heat rays. The reflecting member forms a plurality of elongated metal plates 28 so as not to hinder the flow of the odor.
It is bent vertically in the shape of a "ku" and arranged with a gap. The reason why it is bent vertically in the shape of a "ku" is to reduce the resistance of the air hitting from below. FIG. 10 is a perspective view showing the positional relationship between the lower heater 22a and the metal plate 28. The broken line shows how the heat radiated from the heater 22a is reflected by the metal plate 28 located upstream of the heater 22a. The figure also illustrates a state in which the odor flows from the bottom to the top through the gaps of the metal plate 28.

The cross-sectional shape of the reflecting member is not limited to the "-" shape. FIG. 11A shows a reflecting member 28a having a U-shaped cross section, and FIG. 11B shows a reflecting member 28b having an arc-shaped cross section.

[Brief description of the drawings]

FIG. 1 is a diagram showing the internal structure of a conventionally used deodorizing device 80. FIG.

FIG. 2 is a schematic diagram showing an entire configuration when the deodorizing apparatus 1 of the present invention is used for deodorizing a garbage disposal machine 2.

FIG. 3 is a plan view showing the internal structure of the deodorizing device 1.

FIG. 4 is a front view showing the internal structure of the deodorizing device 1.

FIG. 5 is a perspective view of the lath net 23 when a metal lath net 23 is used.

FIG. 6 is a detailed sectional view showing a deodorizing section 12 containing a heater and a thermal catalyst.

FIG. 7 is a view showing a structure of a deodorizing section 12 having three stages of a catalyst and a heater.

FIG. 8 is a cross-sectional view showing a deodorizing section 12 when a catalyst 20 is employed as a heat storage member.

FIG. 9 is a deodorizing section 1 provided with a reflecting member for reflecting radiant heat rays.
FIG.

FIG. 10 is a perspective view showing a positional relationship between a heater and a reflecting member.

FIG. 11 is a sectional view showing another shape of the reflection member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Deodorizing device 2 Garbage disposal machine 11 Heat exchange part 12 Deodorizing part 20 Catalyst 21a, 21b, 21c Catalyst 22a, 22b, 22c Heater 23 Net as heat storage member 28, 28a, 28b Metal plate as reflection member

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Nobukatsu Takeuchi 1304 Kanaokacho, Sakai City, Osaka Daikin Industries Inside Kanaoka Plant of Sakai Seisakusho Co., Ltd. (72) Inventor Kenkichi Kagawa 1304 Kanaokacho Sakai City, Osaka Daikin Industries 4C080 AA07 BB02 CC15 HH05 JJ03 KK08 LL02 MM07 NN01 NN02 QQ14 QQ17 4D048 AA22 AB03 BA10X BA28X BA30X BA39X BB07 CC03 CC04 CC38 CC43 CC52 CC53 EA08

Claims (8)

[Claims] 1. A deodorizing device for deodorizing an odor by contacting it with a thermal catalyst, comprising: a heating means (22a) for heating the thermal catalyst (21a); A deodorizing device characterized in that heat storage members (23, 20) are provided on the side opposite to the side facing 21a). 2. A deodorizing apparatus according to claim 1, wherein said heat storage member has a shape which does not hinder the flow of odor. 3. The deodorizing device according to claim 1, wherein said heat storage member is a thermal catalyst. 4. The deodorizing device according to claim 1, wherein said heating means (22a) is disposed upstream of the thermal catalyst (21a). 5. A deodorizing apparatus for deodorizing an odor by contacting the odor with a thermal catalyst, comprising: a heating means (22a) for heating the thermal catalyst (21a); A deodorizing device comprising a reflecting member (28, 28a, 28b) for reflecting radiant heat on a side opposite to a side facing 21a). 6. The deodorizing apparatus according to claim 5, wherein said reflecting member has a shape which does not hinder the flow of odor. 7. The heating device according to claim 7, wherein the reflecting member is provided with a heating means.
The deodorizing device according to claim 5, wherein the deodorizing device has a shape covering an upstream portion of (2a). 8. The deodorizing device according to claim 5, wherein said heating means (22a) is disposed upstream of the thermal catalyst (21a).