JP2004089245A - Deodorizer and garbage disposer using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive deodorizer needing less maintenance by increasing airtightness at the outer periphery of a catalyst fin, eliminating the leakage of an odor and prolonging the service life of the deodorizer. <P>SOLUTION: The deodorizer is composed by fixing the fin 2 carrying the catalyst to a heat conductive pipe 1 with a built-in catalyst heater 24, covering the outer periphery of the fin 2 with a thermal expansion sheet 26 and housing it in a catalyst case 21. The thermal expansion sheet 26 is heated and expanded with heat from the catalyst heater 24 and the heat of waste gas, and a catalyst device without the leakage of the waste gas and without the generation of the odor is provided. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a deodorizing device for purifying odor components, oily smoke, and the like generated from a garbage disposer and the like, and a garbage disposer provided with the same.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, some garbage processing machines use a catalyst to purify odors and oily smoke generated by heating garbage. FIG. 12 shows an example of a conventional garbage processing machine. In FIG. 12, reference numeral 121 denotes a garbage disposal machine main body, and 122 a storage unit for storing garbage, which is provided with a rotating shaft 123 and a stirring blade 124 for stirring garbage substantially in the center. Heating means 125 for heating the garbage is provided above the storage section 122. The heating unit 125 includes a drying heater 126 and a drying fan 127, and heats the surface of the garbage by applying hot air to the garbage. The drying fan 127 is driven to rotate by a drying motor 128. An intake passage 103 and an exhaust passage 136 are formed in the accommodating portion 122, and a catalyst is carried on fins 102 formed by spirally winding a band-shaped thin metal sheet around a metal pipe 101 between the two passages, and the outer periphery of the fins is insulated. A catalyst unit formed by covering with a material 104 is inserted into a catalyst case 105, and a deodorizing device 137 for oxidizing and decomposing odor components by heating a catalyst with a catalyst heater 108 mounted in the metal pipe 101 is provided. (See FIG. 13) An intake port 133 is provided on the top surface of the storage section 122, and an exhaust fan 134 is provided behind the exhaust passage 136. 135 is a drive motor for driving the rotating shaft 123. In the above-mentioned conventional garbage processing machine, when the catalyst is heated by the catalyst heater 108 of the deodorizing device 137 at the same time as the operation of the garbage processing machine main body 121 (heating of the garbage) and the exhaust fan 134 is also operated, the outside air flows from the intake port 133. Is sucked, the odor-containing air in the storage section 122 is deodorized by the deodorizing device 137, and is exhausted to the outside.
[0003]
[Problems to be solved by the invention]
However, in the above-described conventional configuration, when the number of revolutions of the exhaust fan 134 is increased to repeatedly use the heating and cooling for a long period of time and to improve the processing performance, the heat change of the heat insulating material 104 covering the outer periphery of the fins 102 in the deodorization device 137 occurs. As a result, there is a problem that a minute gap is easily formed between the outer periphery of the fin 104 and the heat insulating material 104, odor is leaked, deodorizing performance is deteriorated, and the life of the catalyst device 37 is shortened and maintenance time is shortened.
[0004]
An object of the present invention is to provide an inexpensive deodorizing device that increases the airtightness of the outer periphery of a catalyst fin, eliminates odor leakage, improves the life of the deodorizing device, requires less maintenance, and reduces maintenance. It is assumed that.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, a fin supporting a catalyst is fixed to a heat conductive pipe with a built-in catalyst heater, and the outer periphery of the fin is covered with a thermal expansion sheet and housed in a catalyst case. In the deodorizing device, the outer periphery of the catalyst fin is covered with a heat-expandable sheet to increase airtightness, eliminate odor leakage, improve the life of the deodorizing device, reduce maintenance, and improve processing performance.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
According to the first aspect of the present invention, a fin supporting a catalyst is fixed to a heat conductive pipe having a built-in catalyst heater, and an outer periphery of the fin is covered with a thermal expansion sheet and housed in a catalyst case. In the deodorizer, the thermal expansion sheet is heated and expanded by the heat from the catalyst heater and the heat of the exhaust gas, and the airtightness between the outer periphery of the fins and the inside of the cylindrical case is improved. It is possible to provide a catalyst device that does not leak and generates no odor, and that can improve the life of the catalyst unit and provide a catalyst device that requires less maintenance.
[0007]
According to a second aspect of the present invention, a plurality of heat insulating materials are wound around the outer periphery of the fins, and a heat-expandable sheet is wound between the heat insulating materials. The expansion sheet is warmed and expanded, and the airtightness between the outer peripheral portion of the fins and the inside of the cylindrical case is improved, and even when heat is applied for a long period, there is no leakage of exhaust gas and the like, and it is possible to provide a catalyst device which does not generate odor. In addition, the life of the catalyst unit can be improved, and a catalyst device requiring less maintenance can be provided.
[0008]
According to the third aspect of the present invention, the heat-expandable sheet is wound in multiple stages in a belt shape. Since the thermal expansion sheet is configured in multiple stages, it can withstand long-term thermal deformation and provide more reliable airtightness.
[0009]
The invention according to claim 4 of the present invention is a deodorizing device in which a convex portion is provided in a ring shape on an inner side wall of the catalyst case, and the airtightness between the outer peripheral portion of the thermally expandable sheet or the heat insulating material and the inner surface of the catalyst case is further improved. Can be provided.
[0010]
The invention according to claim 5 of the present invention provides a deodorizing device in which the inner side wall of the catalyst case is formed in a wavy shape, and the airtightness between the outer peripheral portion of the thermally expandable sheet or the heat insulating material and the inner surface of the catalyst case is further improved. it can.
[0011]
In the invention according to claim 6 of the present invention, the outer periphery of the fin is covered with a heat conductive thin plate, and the surface area of the entire high heat plate is increased, thereby increasing the area where the exhaust gas contacts the fin when passing through the fin. In addition, a deodorizing device with improved purification ability can be provided.
[0012]
In the invention according to claim 7 of the present invention, the heat conductive thin plate has a net-like shape, and even when the work is wound around the outer periphery of the fin, there is no slippage between the fin and the net-like thin plate, and the workability can be improved.
[0013]
According to an eighth aspect of the present invention, there is provided a garbage disposer using the deodorizing device according to any one of the first to seventh aspects, wherein a garbage disposer having improved deodorizing performance can be provided.
[0014]
【Example】
(Example 1)
Hereinafter, a first embodiment of the present invention will be described with reference to the accompanying drawings. 1 to 6, a fin 2 is formed by fixing a plurality of heat conductive thin plates such as circular metal thin plates provided with four holes 22 radially in a heat conductive pipe 1 made of metal or the like in a case 21. The fins 2 carry a catalyst on the surface thereof, and the opposing fins 2 are partitioned by four radial partition plates 23 to house fins having four passages as shown in FIG. Two catalytic heaters 24 are mounted in the conductive pipe 1. A net-like heat conductive thin plate 25 made of metal or the like is wound around the outer periphery of the fin 2, and a thermal expansion sheet 26 for sealing is further wound around the outer periphery. 27 is an inlet pipe of the case 21 which is an exhaust gas intake passage, and 28 is an outlet pipe which is an exhaust gas exhaust passage. A radiating fin 29 is provided in a portion of the heat conductive pipe 1 near the entrance pipe 27, and the radiating fin 29 carries a catalyst. Each of the catalyst heaters 24 is a catalyst heater 24 having a different heating area. In the present embodiment, one catalyst heater 24a generates heat as a whole, and the other catalyst heater 24b generates heat only at the lower U-shaped portion. Has formed. Further, the configuration is such that the watt density of the catalyst heater 24 becomes smaller toward the downstream side of the fin 2. A temperature detection unit 31 is provided near the entrance 21 a of the exhaust gas of the case 21. The temperature detection unit 31 detects the temperature of the catalyst heater 24 and, when abnormal combustion occurs in the case 21, stops energization of the catalyst heater 24 or stops energization of the garbage disposer main body and turns off the catalyst heater 24. Disconnection and damage to the deodorizing device can be prevented. In FIG. 5, the temperature detecting section 31 is attached so that the temperature detecting section 31 is always in close contact with the case 21 from a spring-made holding plate 35 attached to the case 21 by welding or screwing. Since the temperature detecting section 31 is always in close contact with the case, the temperature can be reliably detected. Further, a suction fan (not shown) communicating with the outlet pipe 28 is provided. The temperature inside the outlet pipe 28, which is an exhaust passage, is high, and a catalyst can be carried in the exhaust passage to provide a deodorizing device with higher purification performance.
[0015]
In the above configuration, the fins 2 are radially partitioned by the four partition plates 23 to form four passages in which the exhaust gas circulates 90 ° and flows upward, thereby increasing the pressure loss. Without increasing the number of fins 2 supporting the catalyst and the outer diameter of the fins 2, the surface area of the entire fins is increased, thereby increasing the area where the exhaust gas comes into contact with the fins 2 when passing. It enhances the ability. Further, the radiation fins 29 can release the heat of the catalyst heater 24 to prevent abnormal heating of the catalyst heater 24. In addition, by supporting the catalyst on the radiating fins 29, it is possible to provide a deodorizing device with higher purification ability. Further, the configuration is such that the watt density of the catalyst heater 24 becomes smaller toward the downstream side of the fin 2. On the so-called upstream side, since the watt density is large, the exhaust gas is mainly heated before passing through the fins 2, and the heated exhaust gas passes through the fins 2, so that the heat of the fins 2 is increased. The distribution can be made uniform and the purification ability can be further increased. Further, a thermal expansion sheet 26 for sealing is wound between the outer periphery of the fin and the catalyst case 21 and is fixed therefrom with the wire 3 or the like. The heat expansion sheet 26 is heated and expanded by the heat from the catalyst heater 24 and the heat of the exhaust gas, and the airtightness between the outer peripheral portion of the fin 2 and the inside of the cylindrical case 21 is improved. It is possible to provide a catalyst device that does not leak and generates no odor, and that can also improve the life of the catalyst unit 32 and provide a catalyst device that requires less maintenance.
[0016]
In addition, by providing a deodorizing member covered with a net-like heat conductive thin plate 25 of metal or the like carried on the outer periphery of the fin 2 or a heat conductive thin plate (not shown), the surface area of the entire catalyst is increased. As a result, the area where the exhaust gas comes into contact with the fins when passing through the fins is increased, so that it is possible to provide a deodorizing device with enhanced purification performance. Also, the heat insulating sheet for sealing 30 or the thermal expansion sheet 26 wound around the outer periphery of the fin 2 jumps out into the path of the fin 2 so that the passage for exhaust gas is not narrowed. When the winding work is performed, the fin 2 and the net-like thin plate 25 do not slip, so that the workability can be further improved.
[0017]
(Example 2)
Next, a second embodiment of the present invention will be described with reference to FIG. The same components as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted. In FIG. 7, a net-like heat conductive thin plate 25 made of metal or the like is wound around the outer periphery of the fin 2, and a heat insulating material 30 for sealing is wound around the outer periphery several times. 26 is wound in a belt shape.
[0018]
In the above configuration, the heat insulating material 30 for sealing is wound twice or more around the outer periphery of the fin 2, and the heat-expandable sheet 26 is wound between the heat insulating materials 30 in a belt shape. The heat expansion sheet 26 is warmed and expanded by the heat from the heat and the heat of the exhaust gas, and the airtightness between the outer peripheral portion of the fin 2 and the inside of the cylindrical case 21 is improved. Thus, it is possible to more reliably increase the flow purification capacity, to provide a catalyst device free from odor generation, to improve the life of the catalyst unit 32, and to provide a catalyst device requiring less maintenance.
[0019]
(Example 3)
Next, a third embodiment of the present invention will be described with reference to FIGS. The same components as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted. In FIG. 8, the heat insulating sheet for sealing 30 is wound twice or more around the outer periphery of the fin 2, and the thermal expansion sheet 26 is wound several times between the heat insulating materials 30 for sealing.
[0020]
In the above configuration, the heat insulating material 30 for sealing of two or more layers is wound around the outside of the fin 2 and the thermal expansion sheet 26 is wound several times between the heat insulating materials 30 so that the catalyst is formed. Workability is good even when the unit 32 is inserted into the catalyst case 21. Further, the heat expansion sheet 26 is heated and expanded by the heat from the catalyst heater 24 and the heat of the exhaust gas. Even if the sealing of one heat expansion sheet 26 is insufficient, the airtightness is increased by the other heat expansion sheet 26 and the fin 2 A catalyst device that further improves the airtightness between the outer peripheral portion and the inside of the cylindrical case 21, and can reliably increase the flow purification capability without leakage of exhaust gas even when heat is applied for a long period, and does not generate odor. Can be provided. Further, since the multi-stage structure is employed, the catalyst unit 32 withstands thermal deformation for a long time, more reliable airtightness can be obtained, the life of the catalyst unit 32 can be improved, and a catalyst device requiring less maintenance can be provided. In FIG. 9, a heat insulating material for sealing 30 is wound around the outer periphery of the fin 2, and a thermal expansion sheet 26 is wound between the heat insulating material for sealing 30 and the catalyst case 21 in a band-like manner at intervals.
[0021]
In the above configuration, similarly to FIG. 8, the heat expansion sheet 26 is heated and expanded by the heat from the catalyst heater and the heat of the exhaust gas, and even if the sealing of one heat expansion sheet 26 is insufficient, the other heat expansion sheet 26 is airtight. The airtightness between the outer peripheral portion of the fins 2 and the inside of the cylindrical case 21 is further improved, and even if heat is applied for a long period of time, there is no leakage of exhaust gas and the like, and the flow purifying ability can be further improved, and odor is generated. It is possible to provide a catalyst device without any. Furthermore, since the multi-stage structure is employed, the catalyst unit 32 can withstand long-term thermal deformation, provide more reliable airtightness, improve the life of the catalyst unit 32, and provide a catalyst device requiring less maintenance.
[0022]
(Example 4)
Next, a fourth embodiment of the present invention will be described with reference to FIG. The same components as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted.
[0023]
In FIG. 10, a belt-like annular projection 21b is provided on the inner side wall of the catalyst case 21. The heat expansion sheet 26 is heated and expanded by the heat from the catalyst heater 24 and the heat of the exhaust gas. The airtightness between the outer peripheral portion and the inside of the cylindrical case 21 is further improved, and even if heat is applied for a long period of time, there is no leakage of exhaust gas or the like, and the flow purifying ability can be further increased, and a catalyst free of odor is generated. Equipment can be provided. Further, the life of the catalyst unit 32 can be improved, and a catalyst device requiring less maintenance can be provided.
[0024]
(Example 5)
Next, a fifth embodiment of the present invention will be described with reference to FIG. The same components as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted. In FIG. 11, the shape of the inner side wall surface of the catalyst case 21 is formed into a corrugated shape, and the outer peripheral surface of the heat-expandable sheet 26 or the heat insulating material 30 for sealing (not shown) and the corrugated projections 21c inside the side surface of the catalyst case 21 are formed. Are in close contact with each other.
[0025]
In the above configuration, the shape of the side wall surface of the catalyst case 21 is formed in a corrugated shape, and the corrugated protrusion 21c on the side surface / inside and the outer peripheral surface of the heat-expandable sheet 26 or the heat insulating material 30 for sealing (not shown) are more securely adhered. This makes it possible to provide a deodorizing apparatus in which the confidentiality between the outer peripheral portion of the heat-expandable sheet 26 or the heat insulating material 30 for sealing (not shown) and the inner surface of the catalyst case is further improved. Further, it is possible to provide a catalyst device which does not leak exhaust gas or the like and generates no odor even when heat is applied for a long period of time, and can also improve the life of the catalyst unit 32 and provide a catalyst device requiring less maintenance.
[0026]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the airtightness of the outer periphery of a catalyst fin can be increased, odor leakage can be eliminated, the life of a deodorizing device can be improved, and an inexpensive deodorizing device with less maintenance can be provided.
[Brief description of the drawings]
FIG. 1 is a side view of a deodorizing apparatus according to a first embodiment of the present invention. FIG. 2 is a cross-sectional view of the deodorizing apparatus. FIG. 3 is a configuration diagram in which a net-like heat conductive thin plate is attached to the catalyst member of FIG. FIG. 4 is a side view of the catalyst unit of FIG. 1; FIG. 5 is a side view of a temperature detection unit of the deodorizing apparatus; FIG. 6 is a configuration diagram of the fins and heat conduction pipe of FIG. 1 FIG. FIG. 8 is a cross-sectional view of a deodorizing apparatus according to a third embodiment of the present invention. FIG. 9 is a cross-sectional view of the deodorizing apparatus according to a third embodiment of the present invention. FIG. 11 is a cross-sectional view of a deodorizing apparatus according to a fifth embodiment of the present invention. FIG. 12 is a cross-sectional view of a conventional garbage disposal machine. FIG. 13 is a cross-sectional view of the deodorizing apparatus.
DESCRIPTION OF SYMBOLS 1 Heat conductive pipe 2 Fin 21 Case 24 Catalyst heater 25 Metal net 26 Thermal expansion sheet 30 Heat insulating material for sealing

Claims (8)

A deodorizing device comprising a fin supporting a catalyst fixed to a heat conductive pipe having a built-in catalyst heater, and an outer periphery of the fin covered with a thermal expansion sheet and housed in a catalyst case. The deodorizing apparatus according to claim 1, wherein a plurality of heat insulating materials are wound around the outer periphery of the fin, and a thermally expandable sheet is wound between the heat insulating materials. The deodorizing device according to claim 1 or 2, wherein the heat-expandable sheet is wound in multiple stages in a belt shape. The deodorizing device according to any one of claims 1 to 3, wherein a convex portion is provided in a ring shape on an inner side wall of the catalyst case. The deodorizer according to any one of claims 1 to 3, wherein an inner side wall of the catalyst case is formed in a wavy shape. The deodorizer according to any one of claims 1 to 5, wherein the outer periphery of the fin is covered with a heat conductive thin plate. 7. The deodorizing device according to claim 6, wherein the heat conductive thin plate has a net shape. A garbage processor using the deodorizing device according to claim 1.

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