JP2007054746A - Deodorization apparatus and garbage treatment apparatus using it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a deodorization apparatus accomplishing enhancement of a deodorization performance and accomplishing energy-saving and miniaturization. <P>SOLUTION: A plurality of flat plates 35 carried with a catalyst are provided side by side while forming a deodorization passage 36 between the flat plates. A passage entrance 42 is provided on the flat plate 35 in an upstream side of an exhaust gas, a communication port 43 is provided on the flat plate 35 at an intermediate part and a passage exit 44 is provided on the flat plate 35 in a downstream side respectively to communicate the deodorization passage 36 between the respective flat plates. An introduction part 38 of the exhaust gas and a discharge part 40 of the exhaust gas are provided respectively so as to cover the flat plate 35 in the upstream side and the flat plate 35 in the downstream side, a heating means 46 is provided on the introduction part 38 of the exhaust gas and a plurality of projection parts 45 positioned at the deodorization passage are provided on the respective flat plates. Thereby, the exhaust gas with raised temperature is disturbed by the projection part 45, a thermal transmission ratio is enhanced, the flat plate 35 is heated and its temperature is raised. Thereby, enhancement of the deodorization performance is accomplished and energy-saving and miniaturization are accomplished. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a deodorizing apparatus for decomposing odor components and a garbage disposal apparatus using the same.

2. Description of the Related Art Conventionally, a deodorizing apparatus used for a garbage disposal apparatus or the like has a spiral catalyst body supporting a catalyst, and decomposes odor components by heating the catalyst body and exhaust gas by a heating means. (For example, refer to Patent Document 1).
JP 2003-340240 A

  However, in the conventional configuration, since the heating means heats the catalyst body through the cylinder that guides the exhaust gas, the heating efficiency is poor, and it takes time to rise to the catalyst activation temperature (about 400 ° C.). It was a thing.

  The present invention solves the above-described conventional problems, and aims to provide a deodorizing apparatus that improves deodorizing performance, saves energy and is compact, and a garbage disposal apparatus using the deodorizing apparatus. .

  In order to solve the above-mentioned conventional problems, the deodorizing apparatus of the present invention is provided with a plurality of flat plates carrying a catalyst so as to form a deodorizing passage between the flat plates. A communication port is provided in the flat plate of the part, and a passage outlet is provided in the flat plate on the downstream side so that the deodorizing passage between the flat plates is communicated, and the exhaust gas introduction portion covers the upstream flat plate and the downstream flat plate, respectively. And an exhaust gas exhaust part, an exhaust gas introduction part is provided with heating means, and each flat plate is provided with a plurality of convex parts located in the deodorizing passage.

  As a result, the exhaust gas flowing into the introduction portion is directly heated by the heating means and the temperature rises rapidly. Next, the exhaust gas whose temperature has risen flows into the deodorization passage from the passage entrance. Then, the exhaust gas flowing through the deodorizing passage is disturbed by the projections to improve the heat transfer rate, and the flat plate is heated by heat transfer to raise the temperature. At that time, the disturbed exhaust gas sufficiently contacts the flat catalyst, so that the odor component of the exhaust gas is efficiently decomposed. Then, the deodorized exhaust gas flows out from the passage outlet to the discharge section. Therefore, the deodorization performance is improved, and energy saving and compactness are achieved.

  Moreover, the garbage processing apparatus using the deodorizing apparatus of the present invention has the improved deodorizing performance, energy saving and compactness, and is therefore optimal for household kitchen use.

  The deodorizing apparatus of this invention and the garbage processing apparatus using the same are improved in deodorizing performance, and energy saving and downsizing can be achieved.

  In the first invention, a plurality of flat plates carrying a catalyst are provided with a deodorizing passage formed between the flat plates, a passage inlet is provided in the upstream flat plate, a communication port is provided in the intermediate flat plate, and a downstream side. Each of the flat plates has a passage outlet to communicate a deodorizing passage between the flat plates, and an exhaust gas introduction portion and an exhaust gas discharge portion are provided to cover the upstream flat plate and the downstream flat plate, respectively. The introduction part is provided with a heating means, and each flat plate is provided with a plurality of projections located in the deodorization passage, so that the exhaust gas flowing into the introduction part is directly heated by the heating means and is rapidly heated. To rise. Next, the exhaust gas whose temperature has risen flows into the deodorization passage from the passage entrance. Then, the exhaust gas flowing through the deodorizing passage is disturbed by the projections to improve the heat transfer rate, and the flat plate is heated by heat transfer to raise the temperature. At that time, the disturbed exhaust gas sufficiently contacts the flat catalyst, so that the odor component of the exhaust gas is efficiently decomposed. Then, the deodorized exhaust gas flows out from the passage outlet to the discharge section. Therefore, the deodorization performance is improved, and energy saving and compactness are achieved.

  According to a second aspect of the invention, in particular, in the first aspect of the invention, the convex portions of the flat plates are provided so that the convex portions face each other, so that the exhaust gas flowing through the deodorizing passage narrows the cross section of the deodorizing passage and faces each other. The flat plate is efficiently heated by heat transfer while colliding with the convex part and sufficiently disturbed to raise the temperature. At that time, the sufficiently disturbed exhaust gas sufficiently contacts the flat catalyst, so that the odor component of the exhaust gas is efficiently decomposed.

  In the third invention, in particular, in the first invention, the convex portions of each flat plate are arranged in a staggered manner, so that exhaust gas flows through the deodorizing passage through the convex portions, so that the flat plate can be used sufficiently. The odor component of exhaust gas can be decomposed efficiently.

  According to a fourth aspect of the invention, in particular, in the first aspect of the invention, the convex portion of each flat plate is disposed in the vicinity of at least one of the passage inlet, the communication opening, and the passage outlet, so that the exhaust gas communicates with the passage inlet. Since it flows so as to go around at least one of the mouth and the passage outlet, the flat plate can be used sufficiently and the odor component of the exhaust gas can be decomposed efficiently.

  In the fifth aspect of the present invention, a plurality of flat plates carrying a catalyst are provided so as to form a deodorizing passage between the flat plates, a passage inlet is provided in the upstream flat plate, a communication port is provided in the intermediate flat plate, and a downstream side is provided. Each of the flat plates has a passage outlet to communicate a deodorizing passage between the flat plates, and an exhaust gas introduction portion and an exhaust gas discharge portion are provided to cover the upstream flat plate and the downstream flat plate, respectively. The deodorizing device is provided with a heating means in the introduction portion of the flat plate, and opens at least one of the passage inlet, the communication port, and the passage outlet of the flat plate by providing a gap between the end portion of the flat plate and the closed portion blocking the flat plate. By doing so, the flat plate is thermally expanded by heating with the exhaust gas. However, since at least one of the passage inlet, the communication port, and the passage outlet, that is, the end of the flat plate extends, thermal deformation of the deodorizing passage can be prevented.

  According to a sixth aspect of the present invention, in particular, in any one of the first to fifth aspects, the passage inlet, the communication port, and the passage outlet are arranged so as to repeatedly spread and concentrate in the flow of the exhaust gas. Since it flows so as to cross the deodorizing passage diagonally, the flat plate can be used sufficiently and the odor components of the exhaust gas can be decomposed efficiently.

  In a seventh aspect of the invention, in particular, in any one of the first to sixth aspects of the invention, the exhaust gas introduction part is divided into two in a state where they are communicated with each other by a preheating wall, and the heating means is arranged in the introduction part on the flat plate side. Since the exhaust gas is introduced into the introduction portion on the other side, the preheating wall receives the radiant heat of the heating means, so that the exhaust gas flowing in from the exhaust passage can be heated. That is, heat dissipation can be suppressed by heat recovery.

  The eighth invention has a deodorizing performance, in particular, by using a garbage disposal apparatus having an exhaust passage for connecting the deodorization apparatus according to any one of the first to seventh inventions and a container containing the garbage. Because it improves, energy saving and downsizing, it is ideal for home kitchen use.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by this embodiment.

(Embodiment 1)
1 to 4 show a deodorizing apparatus and a garbage disposal apparatus using the same in Embodiment 1 of the present invention.

  As shown in FIG. 1, the container 21 for storing the garbage 23 is detachable from the inner container 22, and has a vertical stirring blade 24 built in the inner bottom surface. The stirring blade 24 is connected to a drive unit 25 including a drive motor and a transmission gear via a connection unit 26. The drying fan 27 facing the container 21 is provided on a lid 28 that opens and closes the container 21 when the garbage 23 is thrown in, and a ring-shaped drying heater 29 is disposed on the outer periphery of the drying fan 27. The lid 28 is provided with an intake passage 30 for communicating the container 21 with the outside air. Further, an exhaust passage 31 that communicates with the container 21 is provided, and an exhaust fan 32 is communicated.

  The deodorizing device 33 is provided in the middle of the exhaust passage 31, and a plurality of flat plates 35 carrying a catalyst (platinum palladium) are supported in a hollow deodorizing vessel 34 by forming a deodorizing passage 36 between the flat plates 35. Yes. In this embodiment, three flat plates 35 are arranged to form a deodorizing passage 36 in a gap of 3 to 4 mm. As shown in detail in FIGS. 2 to 4, two passage inlets 42 are provided on the upper left and right sides of the upstream flat plate 35 </ b> A, and two communication ports 43 are provided in the lower center of the intermediate flat plate 35 </ b> C. Two passage outlets 44 are provided on the upper left and right sides of the downstream flat plate 35B to connect the deodorizing passages 36A and 36B between the flat plates 35A to 35C, and cover the upstream flat plate 35A and the downstream flat plate 35B. The exhaust gas introduction part 38 and the exhaust gas discharge part 40 are provided respectively, and the exhaust gas introduction part 38 is provided with a heating means 46. Thereby, the introduction part 38 communicates with the deodorizing passage 36A via the passage inlet 42, and the discharge part 40 communicates with the downstream deodorizing passage 36B via the passage outlet 44. 43 and the passage outlet 44 are arranged so that the deodorizing passage 36 has a single linear shape.

  Further, the flat plate 35B and the flat plate 35C constituting the deodorizing apparatus 33 are formed with a plurality of convex portions 45, that is, convex portions 45B facing the flat plate 35C and convex portions 45C facing the flat plate 35A (on the flat plate 35A). Can also be provided with a protrusion 45). As shown in FIGS. 3 and 4, the convex portions 45 </ b> B and 45 </ b> C are staggered on the flat plates 35 </ b> B and 35 </ b> C, the convex portion 45 </ b> B is in the vicinity of the upstream of the passage outlet 44, and the convex portion 45 </ b> C is upstream of the communication port 43. They are densely arranged in the vicinity.

  The end portions of the flat plates 35A to 35C are closed by a closing portion 37 made of a ceramic material or a metal film, and the open ends of the deodorizing passages 36A and 36B are closed.

  The heating means 46 is formed of a U-shaped electric heater, and the U-shaped portion is disposed so as to be separated from the passage inlet 42. The introduction part inlet 39 of the introduction part 38 is opened away from the passage inlet 42. Similarly, the discharge part outlet 41 of the discharge part 40 is also opened away from the passage outlet 44. The exhaust passage 31 </ b> A is formed using the outer surface of the introduction portion 38 and is connected from the upper side to the lower side toward the introduction portion inlet 39. The exhaust passage 31 </ b> B is connected to the discharge portion outlet 41 and continues to the exhaust fan 32. The control unit (not shown) controls the drive unit 25, the drying fan 27, the exhaust fan 32, the drying heater 29, and the heating unit 46.

  The operation of the deodorizing apparatus configured as described above and the garbage disposal apparatus using the deodorizing apparatus will be described.

  When the lid 28 is opened and the garbage 23 is put into the container 21 and then the lid 28 is closed, the control unit starts the operation of the drying fan 27 and the exhaust fan 32, and at the same time, the drying heater 29 and the heating means 46. Start energizing to. Moreover, since the control unit drives the drive unit 25 intermittently, the power of the drive unit 25 is transmitted to the stirring blade 24 via the connecting unit 26, and the stirring blade 24 rotates intermittently to stir the garbage 23. .

  Then, external air flows into the container 21 through the intake passage 30 by the suction action of the exhaust fan 32 (for example, 3 to 8 L / min). Next, convection is formed in the container 21 by the drying fan 27, and a large amount of hot air (for example, about 130 ° C.) whose temperature is increased by the drying heater 29 is lowered to the wall surface of the container 21 and collides with the garbage. 23 is dried. Subsequently, warm air containing water vapor generated from the garbage 23 rises in the center of the container 21 and reaches the drying fan 27. Thereafter, warm air containing water vapor generated from the garbage 23 flows into the deodorizing device 33 from the inlet 39 through the exhaust passage 31A as exhaust gas (for example, about 100 ° C.).

  Then, the exhaust gas flows from the introduction part inlet 39 to the passage inlet 42 through the whole introduction part 38 and along the entire length of the heating means 46. That is, the exhaust gas first collides with the heating means 46, and in particular, since the exhaust gas is directly heated by heat transfer from the U-shaped portion where the calorific value is concentrated, the temperature of the exhaust gas rapidly increases (for example, 500 ° C.). . Further, since the surface of the heating unit 46 is high temperature (for example, 600 ° C.), the flat plate 35A is directly heated by the radiation from the heating unit 46. As a result, the heating efficiency of the heating means 46 can be improved.

  Next, the exhaust gas whose temperature has risen flows into the deodorizing passage 36A from the passage inlet 42, then flows into the deodorizing passage 36B from the communication port 43, and is discharged from the passage outlet 44 to the discharge portion 40. At that time, the exhaust gas flowing through the deodorizing passage 36A flows so as to concentrate in the center from the passage inlet 42 to the communication port 43, and then the exhaust gas flowing through the deodorizing passage 36B flows so as to spread from the communication port 43 to the passage outlet 44. . In addition, the exhaust gas flowing through the deodorizing passage 36 meanders through the deodorizing passage 36 by the convex portion 45. Further, the exhaust gas flows into the passage inlet 42, the communication port 43 and the passage outlet 44 by the convex portions 45 </ b> B and 45 </ b> C. As a result, the exhaust gas flows along the entire flat plate 35. Further, since the exhaust gas reverses its direction when passing through the passage inlet 42, the communication port 43, and the passage outlet 44, the exhaust gas is disturbed. In addition, the exhaust gas is peeled and disturbed downstream of the projection 45 (breaking of the velocity boundary layer), and the flat plate 35 is heated by heat transfer to raise the temperature. Then, the disturbed exhaust gas goes up and down, right and left and contacts the catalyst of the flat plate 35, so that the odor component (for example, trimethylamine) of the exhaust gas is efficiently decomposed. These are as shown by the arrows in FIGS.

  In addition, the flat plates 35A and 35B facing the introduction part 38 and the discharge part 40 also contribute to the deodorization of the exhaust gas. On the other hand, since the deodorizing passage 36 is formed by arranging a plurality of flat plates 35 so as to be adjacent to each other, the degree of integration of the deodorizing passage 36 is improved and becomes compact, and the area of the blocking portion 37 is narrow and heat dissipation loss is suppressed. Furthermore, workability and assembly are improved. Then, the deodorized exhaust gas flows out from the discharge portion 40 to the exhaust passage 31B and is exhausted from the exhaust fan 32 to the outside.

  In addition, since the recessed part of the back surface of the convex parts 45B and 45C disturbs the exhaust gas which flows through the deodorizing channel | path 36B and the discharge part 40, it contributes to a deodorizing performance improvement. Moreover, although the convex part 45 has been arrange | positioned in the flat plates 35B and 35C at zigzag form, it should just flow so that exhaust gas may meander, and the same effect is acquired also by a grid | lattice form or a rhombus. In addition, when the convex portion 45 is provided on the flat plate 35A, the effect is further improved.

(Embodiment 2)
FIG. 5 shows a deodorizing apparatus according to Embodiment 2 of the present invention. The same elements as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  This embodiment differs from the first embodiment in that the flat plates 35A and 35B protrude toward the flat plate 35C to form convex portions 45A and 45B, and the flat plate 35C protrudes toward the convex portions 45A and 45B. The convex portions 45C are formed on both sides so that the convex portions face each other, and the passage inlet 42, the communication port 43, and the passage outlet 44 are provided as notches at the end of the flat plate 35, and communicate with the passage inlet 42. At least one of the port 43 and the passage outlet 44 is configured such that a gap is provided between the end portion of the flat plate 35 and the closed portion 37 that closes the flat plate 35 and is opened.

  On the other hand, the exhaust gas introduction part 38 is divided into two parts 38A and 38B in a state where they are communicated with each other by the preheating wall 50, the heating means 46 is arranged in the introduction part 38B on the flat plate 35 side, and the exhaust part 38A is exhausted in the other introduction part 38A. The exhaust passage 31A is connected so as to introduce gas.

  In this configuration, the exhaust gas flowing through the deodorizing passage 36 narrows the deodorizing passage 36, collides with the convex portions 45 facing each other, and is sufficiently disturbed to efficiently heat the flat plate 35 by heat transfer and raise the temperature. At that time, the sufficiently disturbed exhaust gas comes into contact with the catalyst of the flat plate 35, so that the odor component of the exhaust gas is efficiently decomposed. Further, although the flat plate 35 is thermally expanded, the residual stress of the convex portion 45 resists deformation, and the passage inlet 42, the communication port 43 and the passage outlet 44, that is, the notch portion at the end of the flat plate 35 extends. Thermal deformation of the flat plate 35 can be suppressed.

  On the other hand, since the preheating wall 50 receives the radiant heat of the heating means 46 and becomes high temperature, the exhaust gas flowing in from the inlet portion 39 is heated by the preheating wall 50. That is, heat dissipation can be suppressed by heat recovery. In addition, when the exhaust passage 31A is highly cooled or when the amount of water vapor in the exhaust gas is large (garbage 23 with a lot of moisture), dew condensation water is generated on the inner wall of the exhaust passage 31A. Since it is connected to the introduction part inlet 39, the dew condensation water surely enters the introduction part 38. As a result, the condensed water that has entered the introduction part 38 can be evaporated again and discharged by radiation from the heating means 46 and heat conduction from the introduction part 38. That is, it is possible to prevent corrosion and odor adhesion due to condensed water.

  Moreover, since the convex part 45 protrudes from both sides, the same effect is acquired even if there is little protrusion amount of the convex part 45 compared with Embodiment 1. FIG. As a result, since the convex portion 45 can be processed at an acute angle, the processing cost can be reduced. Further, if the passage inlet 42, the communication port 43, and the passage outlet 44 are formed by providing a gap between the end portion of the flat plate 35 and the closing portion 37, the end portion of the flat plate 35 can be freely thermally expanded to effectively perform thermal deformation. Can be prevented. However, it is necessary to change the width of the gap appropriately so that the exhaust gas concentrates and spreads (meanders).

  In the first and second embodiments, the convex portion 45 has a substantially conical shape. However, if the exhaust gas is disturbed, the same effect can be obtained even with a quadrangular prism or cutting.

  As described above, the deodorization apparatus according to the present invention and the garbage treatment apparatus using the same are improved in deodorization performance, energy saving and downsizing, so that the deodorization apparatus is other than the garbage treatment apparatus. It can be applied as a deodorizing device in various types of devices, and when combined with a garbage disposal device, it is optimal for household and commercial garbage disposal.

Sectional drawing of the garbage processing apparatus provided with the deodorizing apparatus in Embodiment 1 of this invention Expanded cross-sectional view of the deodorizing device Partial sectional view showing the flow of exhaust gas of the deodorizing apparatus Partial sectional view showing the flow of exhaust gas in the other part of the deodorizing apparatus Sectional drawing of the deodorizing apparatus in Embodiment 2 of this invention

Explanation of symbols

31 Exhaust passage 35 Flat plate 36 Deodorization passage 37 Closed portion 38 Introduction portion 40 Discharge portion 42 Passage inlet 43 Communication port 44 Passage outlet 45 Protruding portion 46 Heating means 50 Preheating wall

Claims (8)

A plurality of flat plates carrying the catalyst are provided with a deodorizing passage formed between the flat plates. A passage inlet is provided in the upstream flat plate, a communication port is provided in the intermediate flat plate, and a passage outlet is provided in the downstream flat plate. Are provided so that the deodorizing passages between the flat plates communicate with each other, and an exhaust gas introduction portion and an exhaust gas discharge portion are provided so as to cover the upstream flat plate and the downstream flat plate, respectively, and the exhaust gas introduction portion is heated. A deodorizing device provided with means and provided with a plurality of convex portions located in the deodorizing passage on each flat plate. The deodorizing apparatus according to claim 1, wherein the convex portions of each flat plate are provided so that the convex portions face each other. The deodorizing apparatus according to claim 1, wherein the convex portions of each flat plate are arranged in a substantially staggered pattern. The deodorizing apparatus according to claim 1, wherein the convex portion of each flat plate is disposed in the vicinity of at least one of the passage inlet, the communication port, and the passage outlet. A plurality of flat plates carrying the catalyst are provided with a deodorizing passage formed between the flat plates. A passage inlet is provided in the upstream flat plate, a communication port is provided in the intermediate flat plate, and a passage outlet is provided in the downstream flat plate. Are provided so that the deodorizing passages between the flat plates communicate with each other, and an exhaust gas introduction portion and an exhaust gas discharge portion are provided so as to cover the upstream flat plate and the downstream flat plate, respectively, and the exhaust gas introduction portion is heated. A deodorizing device provided with means, wherein at least one of the passage inlet, the communication port, and the passage outlet of the flat plate is opened by providing a gap between an end portion of the flat plate and a closed portion blocking the flat plate. The deodorization apparatus according to any one of claims 1 to 5, wherein the passage inlet, the communication port, and the passage outlet are arranged so as to repeat spreading and concentration in the flow of exhaust gas. 7. The exhaust gas introduction part is divided into two in a state where they are communicated with each other by a preheating wall, a heating means is arranged in the introduction part on the flat plate side, and exhaust gas is introduced into the introduction part on the other side. The deodorizing apparatus of any one of these. A garbage disposal apparatus comprising an exhaust passage connecting the deodorizing apparatus according to any one of claims 1 to 7 and a container for accommodating garbage.