JPH06329201A - Kitchen refuse freezing store - Google Patents

Abstract

PURPOSE:To provide a kitchen refuse freezing store enabling dumping, recovering and incinerating the kitchen refuse easily after taking it out from the store. CONSTITUTION:Kitchen refuse stored in a storing chamber 3 is stored after drying and getting free of its water content and then freezing. The drying and freezing are carried out by a heat pump mechanism composed of a compressor 10, a four-way valve 11, a heat exchanger 13, a heat exchanger for cooling 16, a capillary tube 19 and an accumulator 23. Air within the storing chamber 3 is discharged by a vacuum pump 6 and the refuse is dried at a boiling point lowered by reducing the atmospheric pressure together with discharging exhaust air staying inside the storing chamber 3 to the outside of the store through a deodorizing device 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a food waste frozen storage for freezing and storing water-containing waste that is produced after cooking or after eating, that is, so-called raw garbage.

[0002]

2. Description of the Related Art Conventionally, a frozen garbage storage for storing raw garbage that has been frozen after cooking or after meals to prevent the decay of raw garbage and prevent the spread of foul odors and to store the garbage until the collection date. Has been commercialized.

[0003]

However, in the above-mentioned raw garbage freezer storage, since the raw garbage is frozen while the water content is sufficiently contained, the frozen raw garbage becomes heavy, It is difficult to carry when taking it out of the refrigerator and discarding it. In addition, when it is thawed at the disposal site, water is released, and it immediately begins to rot and gives off a bad odor, which gives the collector a discomfort at the time of collection. Furthermore, since a large amount of water remains, the incineration efficiency is poor during incineration and the burden on the incinerator increases.

The present invention relates to an improvement of a frozen garbage storage, and solves such a problem.

[0005]

A raw garbage freezer storage container of the present invention stores a raw garbage in a storage chamber, a drying unit for drying the raw garbage in the storage chamber, and a drying end by the drying unit. And a freezing means for freezing the raw garbage.

[0006] Further, during the drying by the drying means, there is provided a vacuum means for discharging the air in the storage chamber to make the storage chamber vacuum, and a deodorizing means provided in the exhaust passage of the vacuum means.

[0007]

The raw garbage stored in the storage chamber is dried by the drying means, the water content is removed, and then frozen by the freezing means for storage.

Further, the air in the storage is discharged by the vacuum means and dried in a state where the atmospheric pressure is lowered to lower the boiling point, and the exhaust gas from the storage chamber is discharged to the outside of the storage via the deodorizing means.

[0009]

Embodiments of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 is a garbage freezer storage compartment of the present invention, 2 is a machine casing thereof, and 3 is a storage room for accommodating and storing the garbage contained in the machine casing 2. Reference numeral 4 denotes a raw garbage input port provided above the storage chamber 3, and 5 denotes a lid for closing the input port 4.

Reference numeral 6 denotes a vacuum pump which is a vacuum means of the present invention connected to the storage chamber 3 and discharges air from the storage chamber 3 to bring the chamber into a vacuum state. Reference numeral 7 is an exhaust passage for guiding the air discharged from the storage chamber 3 by the vacuum pump 6 to an exhaust outlet 8 provided in the machine frame 2, and 9 is a deodorizing means of the present invention provided at the outlet of the exhaust passage 7. In the deodorizing device, the adsorption deodorizing agent such as activated carbon is contained therein.

Reference numeral 10 designates a stored refrigerant (for example, Freon gas R).
A compressor for compressing −22), 11 is an electromagnetic four-way valve connected to the output side of the compressor 10 by a first connecting pipe 12, 13 is a heat exchanger connected to the four-way valve 11 by a second connecting pipe 14, and 15 is It is a cooling fan that applies cooling air to the heat exchanger 13. Reference numeral 16 denotes a heat exchanger for cooling the inside of the storage arranged around the storage chamber 3, one of which is a third connecting pipe 17
Is connected to the heat exchanger 13 and the other is connected to the fourth connecting pipe 18
Is connected to the four-way valve 11. Reference numeral 19 is a capillary tube formed by narrowing the diameter of the third connecting pipe 17 in the middle thereof.

Reference numeral 20 denotes a condenser arranged in the exhaust passage 7 for removing water contained in the air discharged from the storage chamber 3, the condenser of which is connected to the input side by a fifth connecting pipe 21. The compressor 10 is connected to a four-way valve 11 and an output side is connected to a sixth connecting pipe 22 via an accumulator 23.
Connected to. Reference numeral 24 is a drain tank that is removably arranged in the machine frame 2, and reference numeral 25 is a drain pipe provided to guide the water condensed by the condenser 20 to the drain tank 24.

The four-way valve 11 connects the first connecting pipe 12 and the second connecting pipe 14, and connects the fourth connecting pipe 18 and the fifth connecting pipe 21 (refrigeration mode). ), And connecting the first connecting pipe 12 and the fourth connecting pipe 18,
Moreover, it is switched to any one of the states (drying mode) in which the second connecting pipe 14 and the fifth connecting pipe 21 are connected, and is OFF.
Sometimes it is in the freezing mode, and when it is turned on, it switches to the drying mode. Further, the accumulator 23 has a function of causing only the refrigerant in a gas state to be input to the compressor 10 and preventing the infiltration of a liquid refrigerant.

Reference numeral 26 is a vacuum degree sensor for detecting the degree of vacuum in the storage chamber 3. For example, a semiconductor pressure sensor for extracting a change in pressure as a change in voltage is used.

The operation will be described in detail later. A so-called heat pump mechanism composed of the compressor 10, the heat exchanger 13, the capillary tube 19, the cooling heat exchanger 16, the accumulator 23 and the electromagnetic four-way valve 11 is described below.
It corresponds to the drying means and the freezing means of the present invention.

FIG. 2 shows a control mechanism for the garbage freezer storage of this embodiment, and 27 is a control circuit, for example, a microcomputer. Reference numeral 28 denotes an operation switch connected to the input side of the control circuit 27, which includes a main key for turning on the power of the device body, a start key for starting operation, and the like. Two
Similarly, 9 is a lid switch for detecting the opening / closing of the lid 5.
The vacuum degree sensor 26 is also connected to the input side of the control circuit 27. Reference numeral 30 denotes a load drive circuit connected to the output side of the control circuit 27, which comprises a triac or the like, and the output side thereof is connected to the vacuum pump 6, the compressor 10, the electromagnetic four-way valve 11 and the cooling fan 15. Reference numeral 31 is a notification buzzer that is also connected to the output side of the control circuit 27, and is used to notify an abnormality or the like.

In this way, the control circuit 27 outputs a control signal to the load drive circuit 30 and the notification buzzer 31 based on the inputs from the operation switch 28, the lid switch 29, and the vacuum degree sensor 26. The load drive circuit 30 receives the control signal from the vacuum pump 6, the compressor 10,
The electromagnetic four-way valve 11 and the cooling fan 15 are driven.

Next, the operation of the garbage freezer storage of the present embodiment based on the above configuration will be described with reference to the flowchart of FIG.

First, the garbage is put into the storage chamber 3 and the lid 5 is closed. Press the main key to turn on the power (S1). When the start key is pressed (S2), it is confirmed whether the lid 5 is completely closed (S3), the compressor 10 and the cooling fan 15 are turned on (S4), and the solenoid four-way valve 11 is turned on.
Is turned on (S5), and the drying mode is set. Further, the vacuum pump 6 is turned on to discharge the air in the storage chamber 3 to reduce the pressure in the chamber. On the other hand, if the lid 5 is not completely closed, the notification buzzer 31 notifies the abnormality (S7).

When entering the drying mode, as shown in FIG.
The refrigerant that has been compressed by the compressor 10 into a high-temperature and high-pressure liquid passes through the first connection pipe 12-four-way valve 11-fourth connection pipe 18 and enters the cooling heat exchanger 16. The inside of the storage chamber 3 is warmed by this high temperature refrigerant. At the same time, the refrigerant that has passed through the cooling heat exchanger 16 is cooled by the garbage in the storage chamber 3 to become a low-temperature and high-pressure liquid. Next, the liquid refrigerant whose temperature has been lowered passes through the capillary tube 19 and expands to lower the pressure. Then, when the pressure is further lowered in the heat exchanger 13 and the boiling point is lowered, the liquid refrigerant takes heat from the surroundings to be vaporized, and the heat exchanger 13 is cooled. At this time, the ambient air is applied to the heat exchanger 13 by the cooling fan 15, so that the heat exchange is surely performed, whereby the refrigerant is smoothly vaporized. Further, the refrigerant enters the condenser 20 through the second connecting pipe 14, the four-way valve 11 and the fifth connecting pipe 21.
The refrigerant is vaporized also in the condenser 20, and the condenser 20 cools. The low-temperature low-pressure refrigerant leaving the condenser 20 is connected to the connecting pipe F2.
1-pass through the accumulator 23. Here, the liquid refrigerant that has not vaporized remains in the accumulator 23, and only the gaseous refrigerant enters the compressor 10 again and is compressed.

In this way, the inside of the storage chamber 3 is decompressed and warmed, and the domestic garbage is dried. The air in the room containing the water evaporated from the garbage is sucked into the vacuum pump 6 and flows through the exhaust passage 7 toward the exhaust port 8. At this time, the condenser 20 in the exhaust passage 7 is cooled to remove water. Then, the odor is further removed through the deodorizing device 9 and discharged from the exhaust port 8. Further, the dew condensation water generated in the exhaust passage 7 at this time is stored in the drain tank 24 through the drain pipe 25.

When the vacuum degree sensor 26 detects that the vacuum degree P in the storage chamber 3 has reached the predetermined value A1 (S8), a timer (not shown) in the microcomputer is activated (S9).
Further, during the drying, the vacuum pump 6 is controlled to turn off when the vacuum degree P reaches the limit vacuum degree A2 by the vacuum pump 6, and turn on again when the water content in the garbage is evaporated and the vacuum degree decreases. (S10-13). Thereby, the vacuum pump 6 can be efficiently driven, which is economical.

When the timer measures the predetermined time t (S14), the vacuum pump 6 is stopped (S1).
5). Further, the electromagnetic four-way valve 11 is turned off (S16), and the drying mode is shifted to the freezing mode.

In the refrigerating mode, as shown in FIG. 5, the refrigerant compressed by the compressor 10 into a high-temperature high-pressure liquid becomes the first connecting pipe 12-the four-way valve 11-the second connecting pipe 1.
Passing 4 and entering the heat exchanger 13. Here, the refrigerant is cooled by the cooling fan 15 and becomes a low-temperature high-pressure liquid.
Next, the liquid refrigerant whose temperature has been lowered is transferred to the capillary tube 19
To expand and lower the pressure. After that, when it enters the cooling heat exchanger 16 to further lower the pressure and the boiling point is lowered, the liquid refrigerant is vaporized, whereby the cooling heat exchanger 16 cools. Then, the refrigerant exiting the heat exchanger 16 for cooling is
The fourth connecting pipe 18-the four-way valve 11-the fifth connecting pipe 21-enters the condenser 20, and further the sixth connecting pipe 22-the accumulator 23.
Only the gaseous refrigerant re-enters the compressor 10 through.

Thus, the garbage in the storage chamber 3 is cooled and frozen. Then, the garbage in the storage room 3 is stored in a frozen state. After that, when you take out the garbage,
The main switch is turned off (S17). Then, the compressor 10 and the cooling fan 15 are stopped (S18),
The driving ends.

As described above, in the frozen garbage storage of the embodiment of the present invention, since the garbage stored in the storage chamber 3 is dried and dehydrated, it is frozen and stored.
The weight of frozen garbage can be reduced and it is not heavy when taking out and disposing of garbage, which makes it easy to carry.
Further, even if it is thawed at the disposal site, the amount of water does not come out so much, and since the amount of water is small, it is possible to delay the decay, and it is difficult for the collector to feel discomfort. In addition, the efficiency of incineration is improved during incineration and the burden on the incinerator is reduced.

Further, since the inside of the storage chamber 3 is depressurized and dried at the time of drying, the drying can be promoted at a low temperature. As a result, the odor emitted from the garbage can be suppressed as much as possible, and the garbage can be frozen quickly during cooling.

Further, since the deodorizing device 9 is arranged at the outlet of the exhaust passage 7 of the vacuum pump 6, the air discharged from the inside of the storage chamber 3 is discharged to the outside of the storage via this deodorizing device 9 when the pressure is reduced. , It is possible to prevent the leakage of odor to the outside of the storage.

In addition, a condenser 20 is provided in the exhaust passage 7 in front of the deodorizing device, water in the exhaust gas is removed by the condenser 20, and the water is passed through the deodorizing device 9 for adsorption and deodorization. Only the odor particles can be adsorbed without adsorbing water on the agent, so the deodorizing efficiency is increased. Moreover,
Since the condenser 20 is configured by utilizing the evaporation side of the heat pump mechanism (the side on which the refrigerant vaporizes and exerts a cooling action), the condenser can be easily configured.

[0031]

EFFECT OF THE INVENTION According to the construction of the frozen garbage storage of the present invention, since the garbage stored in the storage chamber is dried and stored in a frozen state in a state where the moisture is removed, the weight of frozen garbage is reduced. It is easy to carry because it is not heavy when taking out and disposing of garbage. Further, even if it is thawed at the disposal site, the amount of water does not come out so much, and since the amount of water is small, it is possible to delay the decay, and it is difficult for the collector to feel discomfort. In addition, the efficiency of incineration is improved during incineration and the burden on the incinerator is reduced.

Further, since the pressure is reduced in the storage chamber during the drying, the drying can be promoted at a low temperature. As a result, the odor emitted from the garbage can be suppressed as much as possible, and the garbage can be frozen quickly during cooling.

Further, during depressurization, the air discharged from the storage chamber by the vacuum means is discharged to the outside of the storage via the deodorizing means, so that it is possible to prevent the leakage of odors to the outside of the storage.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing the configuration of a garbage freezer storage according to an embodiment of the present invention.

FIG. 2 is an electric block diagram showing a control mechanism of the same.

FIG. 3 is a flowchart showing the same operation.

FIG. 4 is a configuration diagram of a heat pump mechanism showing a drying operation.

FIG. 5 is a configuration diagram of a heat pump mechanism showing a refrigerating operation.

[Explanation of symbols]

 3 Storage Room 6 Vacuum Pump 7 Exhaust Path 9 Deodorizer 10 Compressor 11 Electromagnetic Four-way Valve 13 Heat Exchanger 16 Cooling Heat Exchanger 19 Capillary Tube 23 Accumulator

Claims (2)

[Claims] 1. A storage room for storing and storing food waste, a drying means for drying the food waste in the storage room, and a freezing means for freezing the food waste after drying by the drying means. A frozen garbage storage cabinet characterized by that. 2. A vacuum means for exhausting air in the storage chamber to vacuum the storage chamber during drying by the drying means, and a deodorizing means provided in an exhaust passage of the vacuum means. The frozen garbage storage described in 1.