JP2007117901A - Garbage treatment apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a garbage treatment apparatus enhancing a drying performance and suppressing odor. <P>SOLUTION: The garbage treatment apparatus comprises: a garbage treatment chamber 21; a heat pump cycle 27 using a coolant in which a heat release unit 28; an expansion mechanism 29; a heat suction unit 30 and a compressor 31 are constituted in the order; an air circulation passage 32 for circulating air to the heat release unit 28, the garbage treatment chamber 21 and the heat suction unit 30; a fan means 36 for forming an air stream from the heat suction unit 30 to the heat release unit 28; a water discharge passage 38 communicated with the outside in a downstream of the heat suction unit 30; a suction passage 37 for sucking the outside air in an upstream of the fan means 36; and an air discharge passage 33 for discharging of a part of the circulation air in the upstream of the heat suction unit 30. Thereby, since the circulation air is gradually exchanged, a load to the compressor 31 is suppressed, an ability of the compressor 31 can be utilized to the maximum and shortening of a drying time can be accomplished. Further, since lack of oxygen of the circulation air is solved, generation of the odor can be suppressed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a garbage disposal apparatus for reducing and reducing the volume of garbage generated mainly in a home kitchen.

  Conventionally, in this kind of garbage processing apparatus, what utilized a heat pump cycle is known (for example, refer to patent documents 1).

  As shown in FIG. 2, this is because the bottomed garbage processing chamber 2 for storing the garbage 1, the vertical stirring blade 3 provided on the inner bottom surface of the garbage processing chamber 2, and the stirring blade 3 are driven. Drive unit 4, lid 5 covering garbage processing chamber 2, and drying fan 6 built in lid 5, and communicates with hot air outlet 7 and return port 8 facing garbage processing chamber 2. A heat pump cycle 14 using a refrigerant composed of a hot air circulation path 9, a radiator 10 disposed in the hot air circulation path 9, a heat absorber 11, an expansion mechanism 12, and a compressor 13, and the radiator 10 and the heat absorber 11. It consists of a drain pipe 15 provided in the hot air circulation path 9 between and communicating with the outside.

  In this garbage disposal apparatus, first, the lid 5 is opened and the garbage 1 is put into the garbage disposal chamber 2, and then the lid 5 is closed, and then the operation of the drying fan 6 is started, and at the same time the compressor 13 is supplied to the compressor 13. Energization is started. Moreover, the drive part 4 driven intermittently rotates the stirring blade 3 intermittently, and stirs the garbage 1.

In addition, the drying fan 6 forms a circulating air flow that flows to the return port 8, the radiator 10, the heat absorber 11, and the hot air outlet 7 in the hot air circulation path 9. Specifically, the warm air heated and formed by the radiator 10 is ejected from the warm air ejection port 7 to dry the garbage 1. Subsequently, exhaust gas (warm air containing water vapor) generated from the garbage 1 moves up the garbage processing chamber 2 and reaches the return port 8. Thereafter, the exhaust gas flowing into the hot air circulation path 9 is cooled by the heat absorber 11 and dehumidified. As a result, the generated condensed water is discharged from the drain pipe 15. The dehumidified hot air is heated again by the radiator 10.
Japanese Patent Application Laid-Open No. 2004-41962

  However, in the conventional configuration, if the warm air in the warm air circulation path 9 is circulated as it is, the amount of heat of the entire circulating air increases, the amount of heat of the refrigerant in the heat pump cycle 14 increases, the pressure increases, and eventually. There was a problem that the compressor 13 was overloaded. That is, the capacity of the compressor 13 must be set low (for example, ON / OFF operation), and since there is a restriction on the temperature rise of the hot air, it takes time to dry the garbage 1. On the other hand, the condensed water generated by the heat sink 11 dissolves trimethylamine (main odor component: smell of rotten fish) generated when the garbage 1 is dried. Therefore, there was a problem that a strong odor was generated. In addition, methyl mercaptan (another main odor component: odor like rotten onion) that is difficult to dissolve in water accumulates in dry waste, and therefore, there is a problem that dry waste becomes very odorous. Furthermore, oxygen is consumed with a chemical reaction during drying of garbage 1. However, since circulating air is not replaced, there is a problem that drying of garbage 1 generates a strong odor due to lack of oxygen. Was.

  This invention solves the said conventional subject, and it aims at providing the garbage processing apparatus which improved the drying performance and suppressed the odor.

  In order to solve the above-described conventional problems, the garbage processing apparatus according to the present invention includes a garbage processing chamber that accommodates garbage, a heat pump cycle that uses a refrigerant and includes a radiator, an expansion mechanism, a heat absorber, and a compressor in this order. An air circulation path for circulating air to the radiator, the garbage processing chamber and the heat absorber, a blower means for forming an air flow from the heat absorber built in the air circulation path to the radiator, and an air circulation downstream of the heat absorber A drainage channel provided in the channel and communicating with the outside, a suction channel provided in the air circulation channel upstream of the blower means, and an exhaust channel for exhausting part of the circulating air provided in the air circulation channel upstream of the heat absorber It is equipped with.

  As a result, the air circulated by the blowing means exchanges heat with the radiator to become hot air, and dries the garbage in the garbage processing chamber. Next, the warm air containing water vapor generated from the garbage is exchanged with the heat absorber to lower the temperature and the water vapor is condensed. In the process, the air blowing means exhausts a part of the circulating air from the exhaust path, and the air blowing means takes external air into the air circulation path through the suction path. As a result, since the circulating air is gradually replaced, the load on the compressor is suppressed, the capacity of the compressor can be used to the maximum, and the drying time can be shortened. In addition, the shortage of oxygen in the circulating air is eliminated, and the garbage is sufficiently oxidized during drying, so that the generation of odor is suppressed and the condensed water is drained from the drainage channel.

  The garbage processing apparatus of the present invention is intended to shorten the drying time by making the best use of the capacity of the compressor, eliminate the oxygen shortage of the circulating air, and improve the drying performance and suppress the odor.

  1st invention is a garbage processing chamber which accommodates garbage, a heat pump cycle of the refrigerant | coolant which comprised the radiator, the expansion mechanism, the heat absorber, and the compressor in order, the said radiator, the said garbage processing chamber, and the said An air circulation path that circulates air through the heat absorber, an air blower that forms an air flow from the heat absorber built in the air circulation path to the radiator, and an air circulation path that is provided in the air circulation path downstream of the heat absorber. A communicating drainage channel, a suction channel provided in the air circulation channel upstream of the air blowing means, and suctioning external air, and an exhaust channel for exhausting a part of the circulation air provided in the air circulation channel upstream of the heat absorber. It is set as the garbage processing apparatus provided with. As a result, the air circulated by the blowing means exchanges heat with the radiator to become hot air, and dries the garbage in the garbage processing chamber. Next, the warm air containing water vapor generated from the garbage is exchanged with the heat absorber to lower the temperature and the water vapor is condensed. In the process, the air blowing means exhausts a part of the circulating air from the exhaust path, and the air blowing means takes external air into the air circulation path through the suction path. As a result, since the circulating air is gradually replaced, the load on the compressor is suppressed, the capacity of the compressor can be used to the maximum, and the drying time can be shortened. In addition, the shortage of oxygen in the circulating air is eliminated, and the garbage is sufficiently oxidized during drying, so that the generation of odor is suppressed and the condensed water is drained from the drainage channel. On the other hand, trimethylamine (an odor component that is easily dissolved in water) is dissolved in the dew condensation water and drained from the drainage channel, so that the odor due to the dew condensation water can be eliminated.

  In the second invention, in particular, in the first invention, the exhaust passage is provided with deodorizing means and an exhaust fan, so that the exhaust fan generates exhaust gas (hot air containing water vapor) generated from garbage. Since it is drawn into the deodorizing means and the deodorizing means decomposes methyl mercaptan (an odor component that is difficult to dissolve in water), the generation of odor can be suppressed. Further, since the exhaust fan covers the pressure loss of the deodorizing means, it is possible to prevent the hot air from leaking without being deodorized.

  In the third aspect of the invention, in particular, in the first aspect of the invention, since the heat absorber is formed of a corrosion-resistant material, corrosion of the heat absorber due to condensed water can be prevented. That is, since garbage generally contains sulfur, water vapor generated from the garbage is strongly acidic, and there is a problem that the heat absorber is corroded. In particular, the condensed water adhering to the heat absorber is also strongly acidic, and the heat absorber is significantly corroded. However, since the heat absorber is made of a corrosion resistant material, there is no concern about corrosion.

  According to a fourth aspect of the present invention, in particular, in the first aspect of the invention, the surface of the radiator that is in contact with the circulating air is formed of a corrosion-resistant material, so that, similar to the third aspect, the radiator is corroded by the circulating air containing water vapor. Prevention can be achieved.

  In particular, the fifth aspect of the invention is that in the first aspect of the invention, the working fluid flows into the aspirator by communicating the drainage channel with the suction part of the aspirator into which the working fluid flows and the discharge part of the aspirator with the drainage pipe. In this case, condensed water in which the odor component is dissolved and water vapor containing the odor component can be discharged to a sewer pipe or the like.

  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)
FIG. 1 shows a garbage disposal apparatus according to an embodiment of the present invention.

  As shown in FIG. 1, the garbage processing apparatus according to the present embodiment includes a garbage processing chamber 21 that accommodates garbage 22, and a radiator 28 (coating) formed with a corrosion-resistant material on the surface that contacts the circulating air. Condenser), an expansion mechanism 29 such as a capillary tube, a heat absorber (evaporation chamber) 30 formed of a corrosion-resistant material (eg, tinta), and a compressor 31 in that order, a refrigerant-use heat pump cycle 27, a radiator 28, and garbage An air circulation path 32 that circulates air to the processing chamber 21 and the heat absorber 30, a centrifugal blower 36 that forms an air flow from the heat absorber 30 built in the air circulation path 32 to the radiator 28, and the heat absorber 30 A drainage path 38 provided in the downstream air circulation path 32 and communicated with the outside, a suction path 37 provided in the air circulation path 32 upstream of the air blowing means 36, and an air upstream of the heat absorber 30. The part of the circulating air is provided in the circulation path 32 is obtained and an exhaust passage 33 for exhausting.

  The garbage processing chamber 21 is detachable from the apparatus and comprises a bottomed container. A vertical stirring blade 23 is built in the inner bottom surface. The stirring blade 23 is connected via a connecting portion 25 and a driving portion 24 including a driving motor and a transmission gear. The upper part of the garbage processing chamber 21 is covered with an openable / closable lid 26.

  In addition, the exhaust path 33 is provided with a deodorizing means 34 incorporating an electric heater and catalyst fins carrying a catalyst, and an exhaust fan 35 formed of a centrifugal fan. The drainage channel 38 communicates with the suction part 40 of the aspirator 39 into which tap water flows, and the discharge part 41 communicates with a drainage pipe (for example, a sewer pipe).

  In addition, the drive part 24, the deodorizing means 43, the exhaust fan 35, and the ventilation means 36 are controlled by a control part (not shown).

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

  When the lid 26 is opened and the garbage 22 is put into the garbage processing chamber 21, and then the lid 26 is closed, the control unit starts the operation of the air blowing means 36 and the exhaust fan 35, and at the same time the compressor 31 and the deodorizing means. The energization to 34 is started. Further, since the control unit drives the drive unit 24 intermittently, the power of the drive unit 24 is transmitted to the stirring blade 23 via the connecting unit 25, and the stirring blade 23 rotates intermittently to stir the garbage 22. .

  Then, the circulating air circulates in the air circulation path 32 through the radiator 28, the garbage processing chamber 21, and the heat absorber 30 in this order by the blowing action of the blowing means 36. At that time, the high-pressure refrigerant pressurized by the compressor 31 is condensed by the radiator 28 to heat the circulating air to form hot air, and this hot air is pressurized by the blowing means 36 and is disposed of the garbage processing chamber 21. To erupt. Next, the warm air descends the garbage processing chamber 21 and collides with the surface of the garbage 22 to dry the garbage 22. Subsequently, the exhaust gas generated from the garbage 22 rises in the garbage processing chamber 21 and reaches the air circulation path 32.

  Subsequently, the exhaust gas exchanges heat with the heat absorber 30. At that time, the high-pressure refrigerant condensed by the radiator 28 is depressurized by the expansion mechanism 29 and evaporated by the heat absorber 30 to remove heat from the warm air. As a result of the temperature drop, the water vapor contained in the hot air is condensed, and condensed water adheres to the heat absorber 30 and drops to reach the drainage channel 38. When the control unit intermittently flows about 4 L of tap water as the working fluid to the aspirator 39, the suction unit 40 becomes negative pressure, and the condensed water and the warm air in the air circulation path 32 are discharged from the drainage channel 38 to the suction unit 40, It passes through the discharge part 41 and is discharged to a sewer pipe or the like. As a result, it is possible to save the trouble of discharging condensed water and to prevent the garbage processing chamber 21 and the air circulation path 32 from smelling. In particular, it is possible to prevent odor when the lid 26 is opened and the garbage disposal chamber 21 is taken out.

  In addition, since garbage generally contains sulfur, the generated condensed water is strongly acidic, and the warm air that has passed through the heat absorber 30 is also acidic because it contains water vapor. However, since the radiator 28 is coated with a corrosion resistant material and the heat absorber 30 is made of a corrosion resistant material, corrosion of the radiator 28 and the heat absorber 30 can be prevented.

  On the other hand, the exhaust gas flowing into the exhaust passage 33 by the suction action of the exhaust fan 35 decomposes the odor component (for example, methyl mercaptan) by the deodorizing means 34 and is exhausted from the exhaust fan 35 to the outside. As a result, generation of odor can be suppressed. Further, since trimethylamine is dissolved in the dew condensation water and is discharged from the drainage passage 38, the odor component of the exhaust gas is small and the deodorizing means 34 becomes compact. The exhaust fan 35 covers the pressure increase caused by the drying of the garbage 22 in the garbage processing chamber 21 and the pressure loss of the deodorizing means 34 (a negative pressure from the suction path 37 to the exhaust path 33 with respect to the atmospheric pressure). Therefore, it is possible to prevent the exhaust gas from leaking without being deodorized.

  Further, external air is sucked from the suction path 37 into the air circulation path 32 by the suction action of the blowing means 36 by the amount of the exhaust gas. As a result, since the circulating air is gradually replaced with the external air, the load on the compressor 31 is suppressed, the capacity of the compressor 31 can be utilized to the maximum, and the drying time can be shortened. In addition, the shortage of oxygen in the circulating air is eliminated, and the garbage 22 is sufficiently oxidized during drying, so that the generation of odor is suppressed.

  As described above, in this embodiment, the capacity of the compressor is fully utilized to shorten the drying time, the lack of oxygen in the circulating air is eliminated, the drying performance is improved, and the odor is suppressed.

  As described above, since the garbage processing apparatus according to the present invention has improved drying performance and suppressed odor, it is not only a garbage processing apparatus used in a home kitchen, but also a commercial garbage processing. It can also be applied to a device.

Sectional drawing which shows the structure of the garbage processing apparatus in embodiment of this invention Sectional view of a conventional garbage disposal device

Explanation of symbols

DESCRIPTION OF SYMBOLS 21 Garbage processing chamber 27 Heat pump cycle 28 Radiator 29 Expansion mechanism 30 Heat absorber 31 Compressor 32 Air circulation path 33 Exhaust path 34 Deodorizing means 35 Exhaust fan 36 Blower means 37 Suction path 38 Drainage path 39 Aspirator 40 Suction part 41 Discharge part

Claims (5)

A garbage processing chamber that accommodates garbage, a heat pump cycle that uses a refrigerant comprising an radiator, an expansion mechanism, a heat absorber, and a compressor, and air is circulated through the radiator, the garbage treatment chamber, and the heat absorber. An air circulation path, a blower means for forming an air flow from the heat absorber built in the air circulation path to the radiator, a drainage path provided in the air circulation path downstream of the heat absorber and communicated with the outside, Garbage treatment provided with a suction path for sucking outside air provided in the air circulation path upstream of the blowing means and an exhaust path for exhausting a part of the circulating air provided in the air circulation path upstream of the heat absorber apparatus. 2. The garbage disposal apparatus according to claim 1, wherein a deodorizing means and an exhaust fan are provided in the exhaust path. The garbage processing apparatus according to claim 1, wherein the heat absorber is made of a corrosion-resistant material. The garbage processing apparatus according to claim 1, wherein the radiator is formed of a corrosion-resistant material on a surface that contacts the circulating air. The garbage processing apparatus according to claim 1, wherein the drainage channel communicates with a suction portion of an aspirator into which a working fluid flows, and the discharge portion of the aspirator communicates with a drainage pipe.