JP4427241B2 - Storehouse - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to coercive pipe box that Kyosu the dry storage of foods article.
[0002]
[Prior art]
Storage for drying and storing food and other items is broadly divided into a dry atmosphere of calcium chloride or pellet-like silica gel that absorbs moisture in the storage to create a dry atmosphere, and a hygroscopic material. There are some which circulate the air in the warehouse to the dehumidifying part provided to make the moisture absorbent absorb the moisture and make the interior dry. A storage that uses pellet-like silica gel as a hygroscopic material does not accumulate water, and can be regenerated by applying heat to the hygroscopic material that has once absorbed moisture to dehumidify (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 4-114714 [0004]
[Problems to be solved by the invention]
However, in a storage with a moisture absorbent material having a reversible moisture absorption / release function, the air outside the room (indoor) heated during regeneration passes through the moisture absorbent and is discharged again outside the room (indoor). Furniture that is affected by heat cannot be placed in the vicinity of the outlet, and the outlet cannot be placed close to a wall or the like that is affected by heat. In addition, there is a problem that the power consumption is large due to heating by the heater and the running cost is increased.
[0005]
The present invention was made to solve the conventional problems of, and has as its object is to obtain rather small thermal effect on the surrounding, the low running cost depot.
[0006]
[Means for achieving the object]
To achieve the above object, the present invention provides an outer box, a drawer box that can be inserted into and removed from the outer box, the drying box having a closed box structure provided with an openable / closable lid, and An adsorption dehumidification device provided outside the drying chamber, the adsorption dehumidification device having a plurality of passages through which air passes, and a dehumidifier having a reversible moisture absorption / release function, and the passages of the dehumidifier An air passage incorporating a blower to be ventilated and a heating means capable of raising the temperature of the air passing through the dehumidifier is configured in the outer shell, and the air inlet and the air outlet of the air passage are respectively formed in adjacent pairs. A dehumidification path that is configured to be openable and closable, from one of the suction openings to the one outlet through the air passage, and a regeneration path from the other suction opening to the other outlet through the air passage. Alternates between dehumidifying operation and regenerative operation by alternately switching on and off with an open / close damper mechanism Thereby to cause the dehumidification path, configured to allow communication with said drying chamber, separated, the reproduction path, the dry outdoor configured to be contacted to the space, the dehumidifier by said heating means The means for raising the temperature of the air passing through the air temperature by the air temperature rise value at room temperature (outside temperature) + 50K is adopted.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
The present embodiment shown in FIGS. 1 to 5 relates to a storage for storing articles such as foods in a dry state. This storage is composed of a drying chamber 1 and an adsorption dehumidifying device 2 that processes the air in the drying chamber 1 into a dry atmosphere. The drying chamber 1 is configured as a drawer-type sealed box structure that can be inserted into and removed from the outer box 3 that is open on the front surface, and an opening / closing lid 4 that can be opened and closed by turning or sliding is mounted on the top (see FIGS. 1 and 3). . Opening at the upper part is easy to use in and out of the drying chamber 1 in the case of a drawer type. As shown in FIG. 1, the front surface of the drying chamber 1 is composed of a front panel 5 that projects outward, and one opening 6 is provided on each side of the upper projecting portion. In the outer box 3, with the drying chamber 1 inserted, two rows of ventilation passages 7 extending in the front-rear direction are provided in the center of the top plate between the opening / closing lid 4 of the drying chamber 1 and the top plate of the insertion portion. It is defined by the partition wall 8 (see FIGS. 1, 3 and 4). The two rows of ventilation passages 7 communicate with the two openings 6 of the front panel 5 of the drying chamber 1.
[0009]
The adsorption dehumidifying device 2 is provided behind the drying chamber 1 in the outer box 3 and mainly includes a dehumidifier 10 having a number of linear passages 9 through which air passes, a blower 11, and a heating means 12. . The adsorption dehumidifier 2 is configured by incorporating a blower 11 for ventilating the passage 9 of the dehumidifier 10 and a heating means 12 for raising the temperature of the air passed through the dehumidifier 10 into the air passage 13 in the outer shell of the hexahedron. (See FIG. 2).
[0010]
The inlets 14 and 15 and the outlets 16 and 17 of the air passage 13 of the adsorption dehumidifier 2 are opened in pairs on two surfaces of the adjacent outer shells. In the outer shell, a dehumidifying path from one suction port 14 through the air passage 13 to the one outlet 16 and a regeneration path from the other inlet 15 through the air passage 13 to the other outlet 17 are provided. ing.
[0011]
The suction ports 14 and 15 and the air outlets 16 and 17 in the dehumidification route and the regeneration route are opened and closed by two open / close damper mechanisms 19. The open / close damper mechanism 19 is opened and closed by two drive mechanisms. That is, the inlet opening / closing blade 21 and the outlet opening / closing blade 22 are mounted on the rotation shafts of the two stepping motors 20.
[0012]
Both the suction port 14 and the outlet 16 of the dehumidification path are connected to the drying chamber 1 in an airtight state, and the suction port 15 and the outlet 17 of the regeneration path are respectively connected to the two rows of ventilation paths 7 of the outer box 3. And communicates with the outside through the openings 6 of the front panel 5 of the drying chamber 1.
[0013]
The dehumidifier 10 is formed by laminating a corrugated structure material or a honeycomb structure material in which a hygroscopic agent such as silica gel is bonded to inorganic fibers such as ceramics using a polymerization reaction, and a plurality of linear passages through which air to be treated passes. 9 is distributed in the whole and is formed in a rectangular parallelepiped shape with a density of 230 to 270 kg / m ³ and has a reversible moisture absorption / release function. Each passage 9 is parallel, and all of the opening ends thereof are open on two opposing surfaces of the dehumidifier 10. Since the structure of the dehumidifier 10 is low pressure loss, the blower 11 can be downsized.
[0014]
The heating means 12 has a configuration in which heat dissipating fins that are thermally connected to a positive temperature coefficient thermistor are integrated, and is assembled in a state of traversing the air passage 13 at the front stage of the dehumidifier 10. Between the dehumidifier 10 and the outer shell, a heat insulating air layer or a heat insulating structure 23 of a foamed heat insulating resin is provided, so that the dehumidifier 10 is efficiently heated at the time of regeneration.
[0015]
The drying chamber 1 of this storage has a dry atmosphere by alternately opening and closing the dehumidification path and the regeneration path by the open / close damper mechanism 19 and causing the dehumidifier 10 to alternate between the dehumidification operation by the dehumidification process and the regeneration operation by the regeneration process. . Dehumidification in the drying chamber 1 is performed by rotating the stepping motor 20 and closing the inlet 15 and the outlet 17 of the regeneration path by the inlet opening / closing blade 21 and the outlet opening / closing blade 22 and operating the blower 11. Is performed at room temperature. That is, a circulating air flow is formed in the drying chamber 1 by the opened dehumidifying path, and moisture is adsorbed to the dehumidifying device 10 in a molecular state every time it passes through the dehumidifying device 10, and the inside of the drying chamber 1 quickly becomes a dry atmosphere. .
[0016]
As the water molecules are adsorbed, the adsorption capacity of the dehumidifier 10 decreases, so that the dehumidifier 10 is regenerated in the regeneration process. To regenerate the dehumidifier 10, the stepping motor 20 is rotated, the suction port 14 and the blower outlet 16 of the dehumidification path are closed by the suction port opening / closing blade 21 and the blower outlet opening / closing blade 22, the blower 11 is operated, and the positive temperature coefficient thermistor This is done by energizing the current. The air temperature rise value by the heating means 12 is set to be 50K, and regeneration is performed at a temperature of about 70 ° C. That is, the outside air is sucked from the suction port 15 through the opening 6 of the front panel 5 by the opened regeneration path, heated by passing through the heat radiating plate, and passed through the passage 9 of the dehumidifier 10. Ten water molecules are released.
[0017]
The air that has regenerated the dehumidifier 10 is hot and humid, but the temperature of the air discharged to the outside of the cabinet is low, which can suppress the obstruction of the indoor atmosphere such as the kitchen during the regeneration, and the surrounding furniture and building structure from which the air is discharged No adverse effects due to heat.
[0018]
Here, when the outside air condition is 20 ° C. and the relative humidity is 100%, the absolute humidity of 0.0147 kg / kg (DA) is heated by the heating means 12 and becomes 20 ° C. + 50 K = 70 ° C. . Since the absolute humidity does not change, the relative humidity at this time is 7%. On the other hand, the adsorption isothermal / humidity characteristics of the dehumidifier 10 are as shown in FIG. In FIG. 5, the vertical axis represents the moisture content of the dehumidifier 10, and the horizontal axis represents the temperature of the dehumidifier 10. The parameter is relative humidity. Now, if the point A at 20 ° C. and 100% is connected to the point B when the dehumidifier 10 is heated by the heating means 12, the point A is shifted from the point A to the point B by heating in the regeneration process. That is, the water content is reduced from about 19 Wt% to about 3 Wt%, and water molecules in the dehumidifier 10 are released by about 16 Wt%. Usually, silica gel is regenerated by applying a temperature of 150 ° C. or higher. Here, the silica gel can be sufficiently regenerated at a temperature of 70 ° C. of room temperature (outside temperature) + 50K. In FIG. 5, even if the air temperature is raised to 100 ° C., the moisture content of the dehumidifier 10 is 0 Wt% and the amount of water molecules released is 10 Wt%. %, The influence of the energy to raise the temperature up to 100 ° C. and the heat to the surroundings becomes large at each stage.
[0019]
By opening the dehumidifying path to the regenerated dehumidifier 10 and allowing the air in the drying chamber 1 to pass through, the moisture in the drying chamber 1 can be adsorbed again and the drying chamber 1 can be made a dry atmosphere. Between the dehumidifier 10 and the outer shell is a heat insulating structure 23 made of a heat insulating air layer or a multi-bubble heat insulating resin, so that heat radiation to the surroundings is small and heating efficiency is good.
[0020]
In the drying operation in which the dehumidifying process and the regeneration process are alternately repeated, control is performed so as to always start from the regeneration of the dehumidifier 10 by opening the regeneration path at the start of the operation. By doing so, the dehumidifying function is stabilized without starting the drying operation from the state of the dehumidifier 10 in which the moisture is absorbed in the stopped state and the dehumidifying ability is lowered. The start / stop of the drying operation is performed by the control means based on the output value of the humidity sensor provided in the drying chamber 1.
[0021]
For the drying operation that alternates between the dehumidifying operation and the regeneration operation, the elapsed time of one cycle is about 30 minutes, and the time distribution between the regeneration operation and the dehumidifying operation is 65% for the regeneration operation and 35% for the dehumidification operation. Is set. The drying time is an allowable time of about 30 minutes as the elapsed time from the regeneration operation to the dehumidifying operation when the humidity sensor detects that the humidity in the drying chamber 1 has become high. This is because the amount of moisture absorption under high humidity at approximately the same temperature for foods dried at room temperature is the amount of moisture absorption due to changes from low temperature to room temperature when stored in a refrigerator and taken out indoors, for example. Compared to, the reality is that it is much smaller, and it is an experience in daily life.
[0022]
And the ratio of the heating time and the non-heating time of the heating means 12 in the regeneration operation is set to 2: 1. This is because the air flowing through the linear passage 9 of the dehumidifier 10 is almost saturated with the air heated by the heating means 12 due to the amount of air when the flow velocity is set to 0.1 m / second or less (ascending Temperature 50K). The dehumidifier 10 is heated by this air to release water molecules adsorbed in the dehumidifier 10 and then a regeneration operation without heating is performed. Thereby, the temperature of the dehumidifier 10 can be lowered by ventilation and shifted to the dehumidifying operation, and normal temperature can be achieved without increasing the temperature in the drying chamber 1. If the regeneration operation time by non-heating is short, the temperature of the dehumidifier 10 is high, and if the time is long, the water molecules adsorbed to the dehumidifier 10 by corner heating are released from the regenerated state, and the next dehumidification is performed. This reduces the amount of water molecules adsorbed during operation. Furthermore, the humidity in the drying chamber 1 is efficiently adsorbed to the dehumidifier 10 by setting the wind speed in the regeneration operation to 0.1 m / second or less and setting the wind speed in the dehumidification operation to about three times the wind speed in the regeneration operation. be able to.
[0023]
According to the storage of the present embodiment, the inside of the drying chamber 1 can be quickly and efficiently maintained in a dry atmosphere, and the food stored in the drying chamber 1 can be stored dry at room temperature. Further, there is no need for maintenance such as generation of water or replacement or replenishment of the hygroscopic agent, which is easy to handle and low in running cost. Different from low temperature drying because it is dried at room temperature, for example, laver or the like lasts for a long time after being taken out of the box, making it difficult to lose its taste.
[0024]
Embodiment 2. FIG.
The present embodiment shown in FIGS. 6 to 10 is configured such that the adsorption dehumidifying device 2 in the storage shown in the first embodiment is fitted between the front panel 5 and the drying chamber 1. The configuration is the same as that shown in the first embodiment. Therefore, the same parts as those of the first embodiment are denoted by the same reference numerals as those of the first embodiment, and description thereof is omitted.
[0025]
The storage of the present embodiment is configured on the upper side so that the adsorption dehumidifying device 2 is fitted between the front panel 5 and the drying chamber 1. The outlet 17 and the inlet 15 of the regeneration path of the adsorption dehumidifier 2 are provided on the lower surface of the outer shell, and are sucked from the floor surface side of the installation portion and blown toward the floor surface. Even if such a configuration is adopted, the air blown out is not so high as about 50K, so the thermal influence on the floor surface is small. In this case, as shown in FIGS. 6 and 7, a wind direction plate 25 is provided so that air flows in and out from the direction away from the front structure 24 of the drying chamber 1 at the inlet 15 and the outlet 17 for regeneration. And good. When the front structure 24 is made of stainless steel or aluminum, when the front structure 24 is cooled down, such as in the morning in winter, the front structure 24 is not directly touched by wet air during the regeneration process, and condensation can be prevented.
[0026]
Furthermore, as shown in FIG. 8, a barrier 26 made of a slit or mesh is provided at the suction port 14 and the blowout port 16 to the drying chamber 1 of the dehumidifying path so as to prevent foreign matter and articles from entering the adsorption dehumidifying device 2. It may be. Moreover, as shown in FIG. 9, the adsorption dehumidification apparatus 2 may be provided in the front lower part of the drying chamber 1, and the suction inlet 15 and the blower outlet 17 may be directly communicated with the exterior. By adopting such a configuration, the opening / closing lid 4 of the drying chamber 1 can be configured to be easy to use with a wide opening such as a sliding type, and the drying chamber 1 can be easily kept airtight. Furthermore, as shown in FIG. 10, the opening / closing can be switched by a single opening / closing damper mechanism 19 based on the positional relationship between the suction ports 14, 15 and the outlets 16, 17 of the dehumidification path and the regeneration path of the adsorption dehumidifier 2. In this way, the storage can be downsized. Other functions are the same as those of the first embodiment described above.
[0027]
【The invention's effect】
According to the present invention, an efficient storage that can store foods at room temperature is obtained, which has a low thermal effect on the surroundings and can reduce running costs.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a main part of a storage cabinet according to a first embodiment.
FIG. 2 is a cross-sectional view showing the adsorption dehumidifying device of the storage according to the first embodiment.
FIG. 3 is a longitudinal side view showing a main part of the storage of the first embodiment.
FIG. 4 is a front view showing a main part of the storage of the first embodiment.
5 is an adsorption temperature / humidity characteristic diagram of the dehumidifier according to Embodiment 1. FIG.
FIG. 6 is a perspective view of a storage cabinet according to a second embodiment.
FIG. 7 is a longitudinal sectional view of a main part in the storage of the second embodiment.
FIG. 8 is a front view of a main part in the storage of the second embodiment.
FIG. 9 is a perspective view showing another storage in the second embodiment.
10 is a cross-sectional view showing another adsorption dehumidifying device of the storage of Embodiment 2. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Drying chamber, 2 Adsorption dehumidification apparatus, 9 Passage, 10 Dehumidifier, 11 Blower, 12 Heating means, 13 Air path, 14,15 Suction inlet, 16, 17 outlet, 19 Opening and closing damper mechanism, 25 Wind direction plate, 26 Barrier .

Claims (1)

An outer box,
A drawer box that can be inserted into and removed from the outer box;
The drawer box is composed of a drying chamber having a closed box structure provided with an openable / closable lid, and an adsorption dehumidifying device provided outside the drying chamber,
The adsorption dehumidifier is
A dehumidifier having a large number of passages for passing air and having a reversible moisture absorption / release function, a blower for passing air through the passages of the dehumidifier, and heating means capable of raising the temperature of the air passed through the dehumidifiers The air passage incorporating the air passage is configured in the outer shell, and the air inlet and the air outlet of the air passage are configured to be adjacent to each other and configured to be openable and closable. The dehumidification path leading to the outlet and the regeneration path leading from the other suction port through the air path to the other outlet are alternately cut off by an open / close damper mechanism so that the dehumidifying operation and the regeneration operation are alternated. The dehumidification path is configured to communicate with the partitioned drying chamber , and the regeneration path is configured to communicate with a space outside the drying chamber , and is passed through the dehumidifier by the heating means. Air, air temperature rise value chamber Pull-out vault, characterized in that so as to warm at (refrigerator outside temperature) + 50K.

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