JPH11169821A - Garbage disposal machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow the smooth flow of gas from a heating chamber to a condenser chamber. SOLUTION: When the heating of a treating vessel 11 by a heater 12 for the treating vessel is started, the temp. in the treating vessel 11 and the heating chamber 13 rises and the moisture contained in garbage A evaporates. On the other hand, when the prescribed time elapses from the start of heating by the heater 12 for the treating vessel, a fan 42 and a heater 43 for gas are operated. The gas contg. much steam in the heating chamber 13 flows to the condensing section 20 and is cooled at the time of passing a finned tube 21 and is returned to the heating chamber 13 through a return pipe 41. At this time, the gas fed from the heating chamber 13 to the finned tube 21 is cooled and the dew point thereof falls and, therefore, the steam included in the gas condenses to water which flows down to an S-shaped pipe 31. The gas decreased in the content of the steam is heated to a high temp. by a heater 43 for the gas at the time of flowing in the return pipe 41 and is thereafter injected to the garbage A in the treating vessel 11 by a nozzle 44.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage disposer for drying garbage such as garbage.

[0002]

2. Description of the Related Art Heretofore, there has been known a garbage disposer in which garbage such as garbage is dried to prevent decay and odor components generated during treatment are deodorized. Generally, such a garbage processing machine is configured to deodorize and discharge steam generated by heating garbage.

Since garbage is mainly generated in the kitchen, it is convenient to install a garbage disposal machine indoors.
There are many factors that degrade the indoor environment, such as emission of odor, increase in humidity due to emission of water vapor, and increase in temperature due to heat sources, and it has been difficult to install indoors. Therefore, the applicant of the present application has a heating chamber for heating the garbage, and a condensing chamber for cooling and condensing the steam, and the air existing in the space communicating between the heating chamber and the condensing chamber by the steam generated by heating the garbage. The invention has been previously proposed in which this space is sealed in a state in which the air is extruded, and the amount of water vapor condensed is increased so that the inside of the closed space is subjected to a negative pressure for drying treatment. With such a configuration, it is possible to prevent the odor from leaking from the sealing portion with the lid due to the negative pressure, and it is possible to reduce the boiling point and reduce the amount of heating. Moreover, since the odor components generated from the kitchen waste are drained to the sewer together with the condensed water, there is no need to discharge odors and water vapor, and the odor components can be used indoors.

[0004]

In such a configuration,
By extruding the air inside the space with water vapor and converting most of the gas after sealing into water vapor, the volume shrinkage rate when the gas is cooled in the condensation chamber is increased, and the water vapor generated in the heating chamber is sent to the condensation chamber. Although it can flow smoothly, it is actually difficult to increase the degree of vacuum in terms of handling, structure, cost, etc., and it is considered that considerable air exists in the closed space. Therefore, the air after cooling remains in the condensation chamber as it is, which hinders the flow of steam from the heating chamber to the condensation chamber. Accordingly, the efficiency of generating steam in the heating chamber is deteriorated, and good drying performance may not be obtained.
SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and to smoothly flow gas from a heating chamber to a condensation chamber.

[0005]

According to a first aspect of the present invention, there is provided a kitchen waste treatment machine for heating kitchen garbage such as garbage, the kitchen waste being generated from the kitchen garbage in communication with the heating unit. A condenser for cooling gas containing water vapor, a drainage passage for draining water condensed in the condenser, and return means for forcibly returning the gas cooled in the condenser to the heater. Is the gist.

[0006] According to a second aspect of the present invention, there is provided a kitchen waste processing machine according to the first aspect,
The gist is that the return means is constituted by a communication path communicating the downstream side of the condensing section and the heating section, and a fan for flowing gas from the condensing section side to the heating section side in the communication path. .

[0007] In the garbage disposer according to the first aspect of the present invention, the garbage such as garbage is heated by the heating unit to evaporate water contained in the garbage, and the condensing unit communicates with the heating unit. To cool the gas and condense the water vapor. In addition, the gas cooled in the condensing section is forcibly sent back to the heating section by the return means, so that the gas containing a large amount of water vapor in the heating section flows smoothly to the condensing section, and the water content of the water cooled by the condensing section is reduced. Since the gas with reduced amount is returned to the heating unit again, the moisture contained in the garbage can be efficiently evaporated, and the water vapor can be efficiently condensed. Most of the odors generated from kitchen waste are
The water can be drained to the outside (for example, a drain) together with the condensed water.

Further, the present invention has the above-mentioned structure.
The garbage processing machine described includes a communication path that connects the downstream side of the condensing section and the heating section, and is cooled in the condensing section by flowing gas from the condensing section side to the heating section side by a fan in the communication path. The heated gas is forcibly sent back to the heating unit, and the gas can be smoothly flowed from the heating unit to the condensing unit.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION In order to further clarify the structure and operation of the present invention described above, a preferred embodiment of a kitchen waste disposal machine of the present invention will be described below. FIG. 1 is a schematic configuration diagram of a kitchen waste disposal machine as one embodiment of the present invention. This garbage processing machine is roughly divided into a heating unit 10 for heating garbage A,
Condenser 20 for condensing water vapor generated from garbage A
A blocking drainage unit 30 that communicates with the condensing unit 20 and the sewer pipe 1 to drain the water and shuts off the ventilation according to the state of the stored water;
A return section 40 for returning the gas cooled in the condenser section 20 to the heating section 10 again.

The heating unit 10 includes a processing tank 11 for storing the garbage A, a processing tank heater 12 for heating the processing tank 11,
A heating chamber 13 having a heat insulating structure for accommodating these components is provided. In addition, a lid 13a that opens and closes to put the processing tank 11 in and out is formed in an upper part of the heating chamber 13.

The condenser section 20 is constituted by a fin tube 21 communicating with the upper part of the heating chamber 13.

The blocking drainage section 30 communicates with the down flow path 32 through which the water from the fin tube 21 flows downward, the up flow path 33 which rises once from the down flow path 32, and the down flow path 33 which goes down again from the down flow path 1 to the drain 1. Pipe 31 which forms a drain passage 34
It consists of.

The return section 40 forms a return pipe 41 that connects the downstream side of the fin tube 21 and the heating chamber 13. The return pipe 41 has a fan for flowing gas from the fin tube 21 to the heating chamber 13. 42, a gas heater 43 for heating the gas on the downstream side of the fan 42, and a nozzle 4 for injecting the gas from the downstream end toward the garbage A in the heating chamber 13.
4 are provided.

Next, the operation of the kitchen waste disposal machine will be described. When the garbage A is put into the processing tank 11 and the drying operation is started, the processing tank heater 12 starts heating the processing tank 11. Therefore, the temperature in the processing tank 11 and the heating chamber 13 rises, the water contained in the garbage A evaporates, and the water in the S-shaped tube 31 does not reach the water level a. Is pushed out to the sewer pipe 1 side by the generation of steam. On the other hand, when a predetermined time elapses after the heating by the processing tank heater 12 is started, the fan 42 and the gas heater 43 of the return unit 40 are operated. Therefore, the gas containing a large amount of water vapor in the heating chamber 13 flows to the condensing section 20, is cooled when passing through the fin tube 21, and is returned to the heating chamber 13 through the return pipe 41. At this time, the gas sent from the heating chamber 13 to the fin tube 21 is cooled and the dew point is lowered, so that the water vapor contained in the gas is condensed into water and flows down into the S-shaped tube 31. Then, the gas having a reduced content of water vapor is heated to a high temperature by the gas heater 43 when flowing through the return pipe 41, and then is processed by the nozzle 44 into the processing tank 1.
The garbage A in 1 is injected. By directly injecting the gas heated to a high temperature by the gas heater 43 into the garbage A, the evaporation of the water contained in the garbage A is promoted,
Also, dew condensation in the return pipe 41 is prevented. On the other hand, the water that has condensed and flowed down to the S-shaped pipe 31 accumulates in the U-shaped portion connected from the down flow path 32 to the up flow path 33, and the accumulated water rises to the water level a, so that the water rises up from the down flow path 32. Channel 3
The flow path for communicating gas to 3 is shut off. Therefore, the space including the heating chamber 13 and the fin tube 21 is sealed with respect to the outside. At this time, since a part of the air existing at the start of the operation is pushed out to the sewer pipe 1 side in the enclosed space, the amount of heat given by the heating chamber 13 is made smaller than the amount of heat taken by the fin tubes 21. By increasing the amount of water vapor condensed, the pressure in the closed space can be reduced. Therefore, the inside of the heating chamber 13 becomes a negative pressure and the boiling point decreases,
It is possible to evaporate the water at a low temperature, and it is possible to make it difficult for the odor component to leak out from the gap with the lid 13a.

The water flowing down from the fin tube 21 accumulates in the S-shaped pipe 31, but the water in the upward flow path 33 exceeding the water level b flows into the sewer pipe 1 via the drain flow path 34. The water level stabilizes without increasing. Further, since the water level difference between the downstream flow path 32 and the upstream flow path 33 is determined by the pressure difference between the inside of the sealed space and the inside of the sewer pipe 1, if the pressure in the closed space is a negative pressure value, Channel 3
The water level of No. 2 is stabilized at a water level c higher than the water level b of the water in the upflow channel 33. Most of the odor components generated from the garbage A are dissolved in the water stored in the S-shaped pipe 31 and drained to the sewage pipe 1.

The pressure in the closed space is naturally adjusted by the S-shaped tube 31. For example, when the pressure in the closed space rises above the atmospheric pressure, the water level of the water in the down flow path 32 falls. Then, when the gas descends to the water level a, the gas in the downstream flow path 32 is discharged to the upstream flow path 33. Therefore,
The pressure in the closed space increases only up to a predetermined value determined by the water level difference between the up flow path 33 and the down flow path 32.

On the other hand, when the pressure in the closed space falls below the atmospheric pressure, the water level in the down flow path 32 rises, and the water level in the up flow path 33 falls. When the water in the upward flow path 33 falls to the water level a, the gas in the upward flow path 33 is sucked into the downward flow path 32. Therefore, the pressure in the closed space drops only to a predetermined value determined by the water level difference between the down flow path 32 and the up flow path 33.

As described above, according to the kitchen waste treatment machine of the present embodiment, the return pipe 41 for sending the gas cooled by the fin tubes 21 back to the heating chamber 13 is provided, and the gas in the closed space is fanned by the fan 42. By forcing circulation,
The gas containing a large amount of water vapor flows through the fin tubes 21 and the gas cooled by the fin tubes 21 and having a reduced content of water vapor can be sent back to the heating chamber 13. Evaporation and condensation of the generated water vapor can be performed efficiently, and drying performance can be enhanced. In addition, by heating the gas sent to the heating chamber 13 through the return pipe 41, a high-temperature gas can be directly injected into the garbage A to promote the evaporation of water, and the return pipe 41 generates steam. Dew condensation can be prevented. Further, by the configuration in which the flow of gas from the down flow path 32 to the up flow path 33 is shut off by the water accumulated in the S-shaped pipe 31, the heating chamber 13 and the fin tube can be used without using an on-off valve such as a solenoid valve. Since the space including 21 can be hermetically sealed from the outside, it can be configured at a low cost, and the amount of water in the upward flow path 33 exceeding the water level b is transferred to the drain pipe 1 via the drain flow path 34. Since it flows, drainage can be performed while maintaining a closed space. In addition, since the pressure range in the closed space can be adjusted by the water level difference between the up flow path 33 and the down flow path 32, it is possible to prevent a decrease in heating efficiency and odor leakage due to a high pressure in the closed space. And the backflow of water from the S-shaped tube 31 due to low pressure can be prevented.

Further, since the steam generated from the heated garbage A is condensed and drained together with the odor, the odor can be prevented from leaking and an increase in humidity can be prevented, so that the deterioration of the indoor environment can be prevented. Further, since the inside of the heating chamber 13 has a negative pressure, it is possible to prevent odor from leaking from the gap with the lid 13a, so that it is not necessary to excessively increase the sealing performance.
Moreover, since the drying process can be performed at a low temperature with a reduced boiling point, energy required for heating can be reduced, power consumption can be reduced, and a rise in indoor temperature can be reduced. In addition, there is no need to provide an expensive device such as a vacuum pump to make the inside of the heating chamber 13 a negative pressure.
Moreover, since there is no need to provide a deodorizing device or a steam discharging device, the structure can be simplified and the cost can be reduced.

In the present embodiment, the fan 42 and the gas heater 43 are operated after a predetermined time has elapsed from the start of heating by the processing tank heater 12, but the present invention is not limited to this. The temperature, humidity, pressure, etc. in the heating chamber 13 or the heating chamber 13 or the water level in the cutoff drain section 30 may be detected and actuated based on the detected value. Good. In addition, by reducing the space below the S-shaped tube 31, the amount of water required from the start of the drying process to the time when the gas communication passage is shut off is reduced, and the time required for the shutoff is shortened. It may be. Further, a configuration in which the gas communication flow path is shut off while water is always stored may be employed.
Further, the condensing unit 20 is not limited to natural cooling, and may be configured to cool by, for example, blowing air from the outside with a fan. In addition, the garbage A is not limited to the configuration heated by the processing tank 12 heater, but may be configured to be heated by a gas burner, a microwave, or the like. Further, in the present embodiment, the gas flowing through the return pipe 41 is heated by the gas heater 43, but the gas may not be heated. Further, the configuration may be such that the moisture contained in the garbage A is evaporated by hot air heated by the gas heater 43 without using the processing tank heater 12. In the present embodiment, the heating chamber 13
The space including the fin tube 21 and the fin tube 21 is closed and a negative pressure is applied.
The structure which does not make it a closed state may be sufficient.

Further, the cut-off drainage section 30 is not limited to the S-shaped pipe structure. For example, as shown in FIG. A condensed water discharge pipe 52 for flowing
The upper side of the tank 51 communicates with the drain pipe 1 so that the tank 5
1 may be constituted by a drain pipe 53 for draining water exceeding a predetermined water level into the sewer pipe 1. According to such a configuration, in the case of a negative pressure, the shutoff state is maintained until the level of the water accumulated in the tank 51 falls to the lower end surface of the condensed water discharge pipe 52. By increasing the height of the tank 51 and increasing the capacity of the tank 51, the limit value on the negative pressure side can be set large regardless of the limit value on the positive pressure side. Further, the configuration is not limited to the configuration in which the flow path is shut off by water, and may be a configuration in which the flow path is shut down using an on-off valve such as a solenoid valve. Further, the condensing section 20 is not limited to the fin tube structure, and may have a structure in which a plurality of pipes 61, 61,... In such a configuration, the pipes 61, 61,.
Is cooled. Further, the water condensed in the pipes 61, 61,... Can easily flow toward the S-shaped pipe 31 due to the inclination.

The embodiment of the present invention has been described above.
The present invention is not limited to these embodiments at all, and it goes without saying that the present invention can be implemented in various modes without departing from the gist of the present invention.

[0023]

As described in detail above, claim 1 of the present invention
According to the garbage processing machine described above, while the gas containing a large amount of water vapor in the heating section flows smoothly to the condensation section, the gas cooled in the condensation section and the water vapor content is reduced is sent back to the heating section again. In addition, the moisture contained in the garbage can be efficiently evaporated, and the steam can be efficiently condensed, so that the drying performance can be enhanced.

Further, according to the garbage processing machine according to the second aspect of the present invention, it can be realized with a simple structure by the communication passage and the fan.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a kitchen waste disposal machine as one embodiment.

FIG. 2 is a schematic configuration diagram of a blocking drainage unit as another example.

FIG. 3 is a schematic configuration diagram of a condensing section as another example.

[Explanation of symbols]

10 heating unit, 11 treatment tank, 13 heating chamber, 2
0: condensing section, 21: fin tube, 30: cut-off drain section, 31: S-shaped pipe, 40: return section, 41: return pipe,
42: fan, 43: gas heater, 44: nozzle.

Claims (2)

[Claims] 1. A heating unit for heating kitchen garbage such as garbage, a condenser communicating with the heating unit for cooling a gas containing water vapor generated from the kitchen garbage, and draining water condensed in the condensation unit to the outside. And a return means for forcibly sending back the gas cooled in the condensing section to the heating section. 2. The return means comprises a communication passage communicating the downstream side of the condensing section and the heating section, and a fan for flowing gas from the condensing section side to the heating section side in the communication path. The garbage processing machine according to claim 1, wherein: