JP2007222135A - High humidity cold reserving storage - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a high humidity cold reserving storage storing at low temperature and high humidity preserved objects comprising at least one selected from plants including natural flower, vegetables and fruits and other fresh food articles, and removing ethylene gas generated from the preserved objects to enable long preservation of the preserved objects. <P>SOLUTION: This high humidity cold reserving storage 10 has a sealing chamber 11 which stores preserved objects (A) comprising at least one selected from plants including natural flower, vegetables and fruit and other fresh food articles, a cold reserving means 12 which is set in the sealing chamber 11 and adjusts temperature in the sealing chamber 11 to exceeding 0°C and ≤10°C, and a humidifying means 13 which is set in the sealing chamber 11 and humidifies to relative humidity of ≥90 %RH through giving moisture to air in the in the sealing chamber 11. The humidifying means 13 is set with an ethylene gas removing material 14 which performs either 1 or 2 of absorption and decomposition of ethylene gas generated from the preserved objects. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a high-humidity cool box that stores a preserved product composed of any one or more of plants, fruits and vegetables, and fresh foods including fresh flowers in a state of low temperature and high humidity.

Traditionally, preserves such as plants containing fresh flowers, fruits and vegetables (eg fruits or vegetables), or fresh food (eg fish or meat) are stored in a refrigerator to preserve their freshness.
In addition, for example, Patent Document 1 has a storage room in which a water tank for storing cut flowers is placed and a cooling device that cools and circulates water in the water tank in order to maintain the freshness of cut flowers, which is an example of a preserved product. A high-humidity cool box that keeps the storage chamber at a high humidity by evaporating the water in the water tank is disclosed.

JP-A-8-196139

However, when storing a preservation | save in a refrigerator, the inside of a refrigerator becomes low humidity and the freshness of a preservation | save falls. Here, it is conceivable to arrange a humidifier that discharges water vapor in the refrigerator, but in this case, the water vapor released from the humidifier immediately becomes water droplets, and the humidity in the refrigerator cannot be improved.
Moreover, in invention of patent document 1, in order to evaporate the water in a water tank and to make the inside of a store | warehouse | chamber high humidity, it took a long time to evaporate water and to make a storage chamber high humidity. In addition, it was difficult to adjust the room temperature of the storage room by cooling the water in the water tank, and the room temperature could not be lowered below the water temperature.
Further, among the preserved products, especially fruits and vegetables generate ethylene gas as they mature, and this promotes the aging of other fruits and vegetables stored, for example, so that a decline in freshness cannot be suppressed and long-term preservation is difficult. .

The present invention has been made in view of such circumstances, and stores a preserved product composed of any one or more of plants containing fresh flowers, fruits and vegetables, and other fresh food products in a state of low temperature and high humidity. An object of the present invention is to provide a high-humidity cool box that removes ethylene gas generated from stored products and enables long-term storage of stored products.

The high-humidity cool box according to the present invention that meets the above-mentioned object is a sealed room for storing a preserved material consisting of any one or more of plants, fruits and vegetables, and other fresh foods containing fresh flowers, and the sealed room. A cold insulation means that adjusts the temperature in the sealed room to more than 0 ° C. and below 10 ° C., and a humidifier that humidifies the air in the sealed room by adding moisture to the relative humidity of 90% RH or more. A high-humidity cool box having means,
The humidifying means is provided with an ethylene gas removing material that performs either 1 or 2 of adsorption and decomposition of ethylene gas generated from the stored material.

In the high humidity cool box according to the present invention, it is preferable that the ethylene gas removing material has one or two of palladium and a palladium alloy.
In the high-humidity cool box according to the present invention, the humidifying means includes a moisture-absorbing material capable of absorbing moisture, a watering part that is disposed above the moisture-absorbing material and sprays the moisture-absorbing material, and water sprayed from the watering part. A storage tank that collects and stores the water, and a pump that sends the water collected in the storage tank to the water sprinkling unit, and the ethylene gas removing material is disposed between the water sprinkling part and the storage tank. preferable.

The high-humidity cool box according to any one of claims 1 to 3 can suppress and further prevent evaporation of moisture from the surface of the preserved material by the cold insulation means and the humidifying means, and the preservation period of the preserved material can be made longer than before.
Further, since the humidifying means is provided with the ethylene gas removing material, the ethylene gas can be efficiently removed from the air collected for humidification. Thereby, the removal efficiency of the ethylene gas which exists in an airtight room can be improved, the fall of the freshness of the preservation | save thing by ethylene gas can be suppressed and further prevented, and the preservation | save period of a preservation | save thing can be lengthened further.

In particular, since the high-humidity cool box according to claim 2 uses either 1 or 2 of palladium and palladium alloy as the ethylene gas removal material, the catalytic function is exhibited and the removal efficiency of ethylene gas present in the sealed room Can be further increased.
Since the ethylene gas removal material is arrange | positioned between the water sprinkling part and the storage tank, the high-humidity cold storage chamber of Claim 3 is sprinkled from the water sprinkling part, and adhered to the water used in the case of humidification of air Ethylene gas can be removed. As a result, clean water collected in the storage tank can be circulated and reused for humidification of the air by sending it again to the sprinkler with a pump, so that the humidified air with a small residual amount of ethylene gas flows into the sealed room. be able to.

Next, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention.
Here, FIG. 1 is an explanatory diagram of a high-humidity cool box according to the first embodiment of the present invention, and FIG. 2 is an explanatory diagram of a high-humidity cool box according to the second embodiment of the present invention.

As shown in FIG. 1, a high-humidity cool box 10 according to an embodiment of the present invention includes a plant containing fresh flowers, fruits and vegetables (for example, fruits or vegetables), and other fresh food items (for example, fish or meat). ), A sealed room 11 for storing a preserved material consisting of one or more of the above, a cold insulation means 12 for adjusting the temperature in the sealed room 11 provided in the sealed room 11, and an inside of the sealed room 11 provided in the sealed room 11 And a humidifying means 13 for humidifying by supplying moisture to the air, and the humidifying means 13 has an ethylene gas removing material 14 for performing either 1 or 2 of adsorption and decomposition of ethylene gas generated from the stored matter. Is provided. In the present embodiment, a lily cut flower A is stored as a preserved material. This will be described in detail below.

The sealed room 11 includes a side wall portion 17, a ceiling portion 18, and a floor portion 19 each having a heat insulating material 16 attached to the outside of the stainless steel plate 15.
A part of the side wall 17 of the sealed room 11 is provided with a door 20 for carrying in and carrying out stored items. In addition, leg portions 21 are provided at the four corners of the lower surface of the floor portion 19 to support the sealed room 11 with a gap from the installation surface. The sealed chamber 11 is provided in parallel with one side of the side wall portion 17 with a space therebetween, and a storage chamber for storing stored materials and producing low-temperature air by a partition plate 22 having openings in the upper and lower portions. 23 and a humidification chamber 24 for producing high-humidity air to be supplied to the storage chamber 23.

One or a plurality of cold insulation means 12 are attached to the ceiling portion 18 of the storage chamber 23.
The cold insulation unit 12 sucks and blows out air in the sealed room 11 to circulate air between the storage chamber 23 and the humidification chamber 24 (an example of an air circulation unit), and flows into the fan. And a heat exchanger (not shown) for cooling the air to a predetermined temperature. Thereby, the temperature in the sealed room 11 can be adjusted to a predetermined temperature range.
In the present embodiment, the cold insulation means 12 is installed at the ceiling 18 of the storage chamber 23 and in the vicinity of the upper opening of the partition plate 22. However, if the air in the sealed room 11 can be cooled and circulated. However, the present invention is not limited to this.

Here, the temperature range in the sealed room 11 will be described.
When the preserved material is a living plant such as a fresh flower, the appropriate temperature differs depending on the plant to be preserved, but when the temperature in the sealed room 11 is 0 ° C. or lower, the water contained in the plant freezes, and when it exceeds 12 ° C. The activity cannot be sufficiently suppressed, the growth is promoted, and the plant ages.
In addition, when the preserved product is fruits and vegetables and other fresh foods, the water contained in the preserved product is frozen when the temperature in the sealed room 11 is 0 ° C. or lower. It becomes easy to proliferate.
Therefore, in order to reliably suppress the physiological activity of the plant and to reliably suppress the growth of the attached bacteria, the temperature in the sealed room 11 is more than 0 ° C. and less than 10 ° C., preferably more than 0 ° C. and less than 5 ° C. Keep it at a low temperature.

One or more suction fans 25 that supply the air that has passed through the cooling means 12 of the storage chamber 23 to the humidifying means 13 are provided above the humidifying chamber 24.
The humidifying means 13 includes a plurality of towels (an example of a moisture absorbing material) 26 that can absorb moisture, a watering pipe (an example of a watering part) 27 that is disposed above the towel 26 and sprays water on the towel 26, and a watering pipe. 27 has a storage tank 28 for collecting and storing water sprinkled from 27, and a pump 29 for sending the water recovered in the storage tank 28 to the sprinkling pipe 27.
A plurality of small holes 30 for sprinkling the supplied water are formed in the sprinkling pipe 27 in the longitudinal direction. A watering nozzle may be used instead of the watering pipe.

The towel 26 is attached in a suspended state to a plurality of support bars 31 provided horizontally above the humidification chamber 24 with a slight gap therebetween. In place of the towel, for example, other fabric having water absorbency, sponge, or glass fiber may be used.
Thereby, each towel 26 can absorb the water sprayed from the small holes 30 of the sprinkling pipe 27, and the air sent by the suction fan 25 flows downward between the adjacent towels 26 while being humidified. It has become.

Here, the range of the relative humidity (RH: relative humidity) of the humidified air will be described.
When the relative humidity is less than 90% RH, the water content of the stored product tends to evaporate, and the freshness thereof decreases.
On the other hand, although the upper limit is not specified, the higher the relative humidity, the less likely the transpiration of the stored product will occur, and the freshness of the stored product can be maintained. Therefore, in order to maintain the freshness of the stored product, the relative humidity of the humidified air is set to 90% RH to 100% RH, preferably 95% RH to 100% RH.

Since the storage tank 28 is provided below the towel 26 with a space therebetween and may freeze as the temperature in the sealed room 11 decreases, heating means (not shown) that heats the water in the storage tank 28 ( For example, a heater is provided.
The pump 29 is attached to a liquid feed pipe 32 that connects the water sprinkling pipe 27 and the storage tank 28. In use, the pump 29 is operated to spray the water stored in the storage tank 28. By sending it to the pipe 27, water can be circulated.
An ethylene gas removing material 14 is disposed between the towel 26 and the storage tank 28. The ethylene gas removing material 14 is fixed to a support plate 33 provided at the upper end of the storage tank 28 and having a large number of holes.

The ethylene gas removing material 14 is coated with palladium having a catalytic function for decomposing ethylene gas on the surface of a plate-like (for example, thickness of about 3 cm to 10 cm) alumina molded body, and fired at about 800 ° C., for example. It is a thing. It is also possible to disperse palladium on the surface and inside of the alumina molded body by kneading the alumina powder and the palladium powder, followed by molding and firing.
Further, the molded body to which palladium is applied is not limited to this, and the shape thereof may be, for example, a disk shape or a honeycomb shape (honeycomb shape), and the material may be other ceramic materials, You may comprise any 1 or 2 or more of a metal (for example, copper, copper alloy, manganese, or manganese alloy provided with the effect of decomposing a bad odor), and activated carbon.

And what adheres to a molded object may use palladium alloy (for example, Pd-Rh or Pd-Ir) other than palladium, and may use these in combination.
Further, any one or two of palladium and a palladium alloy may be used in combination with any one or two of, for example, a metal oxide (titanium oxide or aluminum oxide) and a metal catalyst (platinum group such as platinum). It is also possible to use only one or two of a metal oxide and a metal catalyst.
As a result, the air humidified in the humidification chamber 24 is made to collide with the ethylene gas removal material 14, and after either or both of adsorption and decomposition of ethylene gas is performed, the storage tank 28 is disposed below the partition plate 22. It is possible to flow into the storage chamber 23 through the opening 34 formed in the vicinity.

A thermometer 35 and a hygrometer 36 for measuring the temperature and humidity in the storage chamber 23 are provided in the sealed room 11, and a water thermometer 37 is attached in the storage tank 28.
Further, a control panel 38 in which a control device (not shown) for controlling the measured value of the thermometer 35 to be higher than 0 ° C. and lower than 10 ° C. and the measured value of the hygrometer 36 to be 90% RH or higher is provided in a sealed room. 11 on the outside of the side wall 17. The control device of the control panel 38 is connected to the cold insulation means 12, the suction fan 25, and the pump 29, and operates the heat exchanger of the cold insulation means 12 to control the temperature in the storage chamber 23. The thermometer 35 and the hygrometer are controlled by changing the amount of air introduced from the storage chamber 23 to the humidification chamber 24 by controlling the rotation speed of the storage chamber 23 and further controlling the amount of water supplied from the pump 29 to the sprinkling pipe 27. 36 measurement values are set to predetermined values. The control panel 38 is provided with display means (not shown) that can display the measured values of the thermometer 35, the hygrometer 36, and the water temperature gauge 37.

Furthermore, you may install the following apparatuses in the sealed room 11 as needed.
When the preserved product is a plant that performs photosynthesis, such as cut flowers A, photosynthesis is usually performed at daytime and water is absorbed at night. Here, a fluorescent lamp (not shown) capable of irradiating visible light having a wavelength of 400 to 700 nm is installed on the ceiling 18 in the storage chamber 23 of the sealed room 11 and the irradiation time is controlled by a timer (not shown). A time for irradiating visible light to perform photosynthesis (ie, daytime) and a time for absorbing water without irradiating visible light (ie, night) can be created in the storage chamber 23.
This is the same as electric cultivation that is cultivated under the irradiation of artificial light such as an electric light at night, thereby changing the length of day and night and artificially controlling the timing of flowering or flowering. Can do.

Then, the titanium dioxide powder is applied to the inner surfaces of the storage chamber 23 and the door 20 in the sealed room 11, and ultraviolet light having a wavelength of 320 to 400 nm including near ultraviolet light having a wavelength of 380 to 400 nm is applied to the ceiling portion 18 in the storage chamber 23. A near ultraviolet lamp (not shown) that irradiates the light may be attached.
When near-ultraviolet rays irradiated from an ultraviolet lamp hit titanium dioxide, holes having strong oxidizing power and electrons having reducing power are generated. The holes generate hydroxy radicals (.OH), and the electrons generate active oxygen species such as superoxide anion (O ₂ ⁻ ).
By these, for example, one or more of deodorization, sterilization, antifouling, antifungal, and decomposition of the organic compound in the sealed room 11 can be performed.

In addition, since the air in the sealed room 11 is circulated by the fan of the cold insulation means 12 and the suction fan 25, it is easy to contact the inner surface of the storage chamber 23, and the above-described effect is improved.
Here, when the preserved product is a plant or fruit and vegetable containing fresh flowers, the generated active oxygen species can decompose harmful substances such as ethylene gas produced by the preserved product to keep freshness. .
Further, when the preserved product is a fresh food product, the generated reactive oxygen species are attached to the fresh food product, for example, Collier-Erogens group bacteria, Proteus, Bacillus subtilis group, Clostridium, Pseudomonas, and cellulose degradation Any one or two or more of the bacteria can be killed to maintain freshness.

Furthermore, an intermediate ultraviolet lamp (not shown) that irradiates intermediate ultraviolet light having a wavelength of 280 to 320 nm is attached to the ceiling portion 18 in the storage chamber 23, and light including ultraviolet light having a wavelength of 300 to 400 nm is irradiated by the near ultraviolet lamp and the intermediate ultraviolet lamp. May be.
Living plants produce one or more antioxidants of vitamin E, vitamin C, carotene, anthocyanins, and lycopene by ultraviolet rays. These antioxidants are, for example, substances that have one or more colors of leaves, flowers, and fruits, and can produce beautiful antioxidants by generating antioxidants by ultraviolet irradiation. it can.
When the above devices are installed, the control device of the control panel 38 incorporates timers (not shown) for controlling the irradiation times of the fluorescent lamp, the near ultraviolet lamp, and the intermediate ultraviolet lamp, respectively. It is preferable to provide a display means (not shown) capable of displaying the irradiation status of the near ultraviolet lamp, the intermediate ultraviolet lamp, and the fluorescent lamp.

Next, a method for maintaining freshness using the high-humidity cool box 10 according to the first embodiment of the present invention will be described.
The door 20 of the sealed room 11 is opened, and the lily cut flower A put in the vase 39 containing water is carried into the storage chamber 23 of the sealed room 11. The fan of the cold insulation means 12 and the suction fan 25 are driven, and the high-temperature, low-humidity air α (higher than 20 ° C. and lower than 90% RH, for example, 25 ° C., 50% RH) in the storage chamber 23. Then, it is introduced into the humidification chamber 24 through the heat exchanger of the cold insulation means 12.
Note that the temperature and humidity of the air α are measured by a thermometer 35 and a hygrometer 36, respectively.

In the storage chamber 23, the air α is cooled by the cold insulation means 12, and the temperature in the sealed room 11 is adjusted.
Further, in the humidification chamber 24, the water sprayed from the small holes 30 of the sprinkling pipe 27 falls while contacting the air β and the towel 26 cooled by the cooling means 12 and sent into the humidification chamber 24, and the storage tank 28 is stored.
On the other hand, the air β cooled to the low temperature (for example, 10 ° C.) by the cold insulation means 12 comes into contact with the water 26 and water-absorbed towel 26 in the humidification chamber 24 and is humidified to be high humidity (for example, 55 % RH), and the ethylene gas removing material 14 performs either 1 or 2 of adsorption and decomposition of ethylene gas to become air γ from which ethylene gas has been removed.

The air γ passes through the opening 34 and returns to the storage chamber 23 again, and mixes with the air α in the storage chamber 23, increasing its temperature and decreasing its humidity. Further, the mixed air is again introduced into the humidification means 13 of the humidification chamber 24 through the cold insulation means 12, and gradually becomes low-humidity air at a low temperature.
And the measured value with the thermometer 35 and the hygrometer 36, ie, the temperature in the storage chamber 23 exceeds 0 degreeC and is 10 degrees C or less, and relative humidity is 90-100% RH (for example, 3 degreeC, 98% RH). Repeat the above steps until The cut flowers A may be carried in after the storage chamber 23 is at a low temperature and high humidity, for example, 3 ° C. and 98% RH.

In addition, when the air in the storage chamber 23 of the sealed room 11 becomes a target low temperature and high humidity (for example, 98% RH at 3 ° C.), the set temperature of the cold insulation means 12 is adjusted. The temperature of the air in the storage chamber 23 should not be 0 ° C. or lower. Further, when the measured value of the water temperature gauge 37 becomes 0 ° C. so that the water in the storage tank 28 of the humidifying means 13 does not freeze, the control device in the control panel 38 operates the heating means to store the storage tank. The water in 28 is heated. The heated water is supplied from the storage tank 28 to the sprinkling pipe 27 by the pump 29.
Thereby, the cut flower A of lily can suppress physiological activity in a low temperature state, and can suppress freshness and transpiration of water in a high humidity state, so that the freshness can be maintained.
In addition, when strawberry was preserve | saved in the high humidity cool box 10, it has confirmed that a fresh state could be maintained even after two weeks. On the other hand, in the refrigerator used conventionally, the damage | wound generate | occur | produced in about 2 days. Similar results were obtained for figs.

Next, the high-humidity cool box 50 according to the second embodiment of the present invention will be described with reference to FIG. 2, but the same as the above-described high-humidity cool box 10 according to the first embodiment of the present invention. The same reference numerals are given to the members, and detailed description is omitted.
The high-humidity cool box 50 includes a sealed room 11 for storing the stored material, a cool keeping means 51 for adjusting the temperature in the sealed room 11 provided in the sealed room 11, and air in the sealed room 11 provided in the sealed room 11. Humidifying means 52 for humidifying by supplying moisture, and the humidifying means 52 is provided with an ethylene gas removing material 14 for performing either 1 or 2 of adsorption and decomposition of ethylene gas generated from stored matter. is there.
The sealed room 11 is divided into a storage chamber 53 for storing a stored product and a cooling / humidifying chamber 54 for producing low-temperature and high-humidity air supplied to the storage chamber 53 by a partition plate 22 having upper and lower openings. It is partitioned.

In the central portion in the height direction of the cooling and humidifying chamber 54, for example, a refrigerant pipe 55 that is covered with a nonwoven fabric formed of metal fibers (for example, aluminum fibers) is disposed. The refrigerant pipe 55 is a continuous pipe formed by connecting a plurality of straight pipes 56 with elbow pipes. In addition, a refrigerator 59 for supplying a refrigerant (for example, ammonia) to the refrigerant pipe 55 via the feed pipe 57 and the return pipe 58 is disposed outside the sealed room 11. The refrigerant is cooled to −5 ° C. to −30 ° C., for example, −20 ° C. by the refrigerator 59 and is supplied from the upper part of the refrigerant pipe 55.
The refrigerant pipe 55, the feed pipe 57, the return pipe 58, and the refrigerator 59 described above constitute the cold insulation means 51.

The humidifying means 52 is disposed above the refrigerant pipe 55 and sprinkles water 27 that sprinkles the refrigerant pipe 55, and a storage tank 28 that collects and stores water sprinkled from the water sprinkling pipe 27 through the small holes 30. And the pump 29 which sends the water collect | recovered with the storage tank 28 to the piping 27 for watering.
A support plate 33 having a large number of holes is attached to the upper end portion of the storage tank 28, and the ethylene gas removing material 14 is disposed on the support plate 33.
In addition, a heating pipe 60 for heating the water in the storage tank 28 is provided in the storage tank 28, and the heating pipe 60 is heated gas generated from the refrigerator 59 (for example, cooled refrigerant). Air) is supplied through the gas pipes 61 and 62 to prevent the water in the storage tank 28 from freezing.
The control device of the control panel 38 controls the heating pipe 60 from the gas pipes 61 and 62 of the refrigerator 59 when the measured value of the water temperature gauge 37 becomes 0 ° C. so that the water in the storage tank 28 does not freeze. The heated gas is controlled to be supplied.

In the cooling and humidification chamber 54, the refrigerant is supplied from the refrigerator 59 to the refrigerant pipe 55 via the feed pipe 57 and the return pipe 58, and the temperature of the outer surface of the refrigerant pipe 55 is, for example, -5 to 5. 3 ° C. Further, the water sprayed from the small holes 30 of the sprinkling pipe 27 comes into contact with the refrigerant pipe 55 and the air cooled by the refrigerant pipe 55, falls while being cooled, and is stored in the storage tank 28. The
As a result, the air x in the storage chamber 53 is cooled in contact with the air cooled in the refrigerant pipe 55 and the refrigerant pipe 55 and is humidified in contact with the sprinkled water. Either 1 or 2 of adsorption and decomposition of ethylene gas is performed by the removing material 14, and the air y is obtained by removing ethylene gas of low humidity (for example, 20 ° C.) and high humidity (for example, 55% RH). When the amount of water sprayed is small, ice is also generated on the surface of the refrigerant pipe 55, but there is no problem because the ice melts and becomes water by the warm air x.

The air y passes through the opening 34 and returns to the storage chamber 53 again. The air y mixes with the air x in the storage chamber 53, and the temperature increases and the humidity decreases. Further, the mixed air is again introduced into the cooling / humidifying chamber 54, and gradually becomes low-temperature and high-humidity air by the humidifying means 52 and the cold insulation means 51.
And the measured value with the thermometer 35 and the hygrometer 36, ie, the temperature in the storage chamber 53 exceeds 0 degreeC and is 10 degrees C or less, and relative humidity is 90-100% RH (for example, 3 degreeC, 98% RH). Repeat the above steps until
In addition, as water to sprinkle, you may use antifreezing liquids, such as seawater, for example. In this case, low-temperature water of 0 ° C. or lower can be generated by lowering the freezing point. By spraying the water of 0 ° C. or lower to the refrigerant pipe 55, for example, low-temperature air exceeding 0 ° C. and 3 ° C. or lower Can also be manufactured.

As described above, the present invention has been described with reference to the embodiment. However, the present invention is not limited to the configuration described in the above-described embodiment, and the matters described in the claims are not limited. Other embodiments and modifications conceivable within the scope are also included. For example, a case where the high-humidity cooler of the present invention is configured by combining some or all of the above-described embodiments and modifications is also included in the scope of the right of the present invention.
Further, in the above embodiment, the case where the suction fan is installed at the upper part of the humidification chamber or the cooling / humidification chamber and the air is introduced from the storage chamber has been described. However, the lower part of the humidification chamber or the cooling / humidification chamber, that is, the partition plate A suction fan may be installed in the vicinity of the lower opening. In this case, the air from the storage chamber flows in the direction opposite to that of the above embodiment, that is, from the lower side to the upper side of the humidifying means. Further, an exhaust fan may be provided on the downstream side of the humidifying means.

It is explanatory drawing of the high humidity cold storage which concerns on the 1st Embodiment of this invention. It is explanatory drawing of the high humidity cool box which concerns on the 2nd Embodiment of this invention.

Explanation of symbols

10: High humidity cold storage, 11: Sealed room, 12: Cooling means, 13: Humidification means, 14: Ethylene gas removing material, 15: Stainless steel plate, 16: Heat insulating material, 17: Side wall, 18: Ceiling, 19 : Floor part, 20: Door, 21: Leg part, 22: Partition plate, 23: Storage chamber, 24: Humidification chamber, 25: Suction fan, 26: Towel (hygroscopic material), 27: Pipe for watering (watering part) , 28: storage tank, 29: pump, 30: small hole, 31: support rod, 32: pipe for liquid feeding, 33: support plate, 34: opening, 35: thermometer, 36: hygrometer, 37: water temperature Total: 38: Control panel, 39: Vase, 50: High humidity cooler, 51: Cooling means, 52: Humidification means, 53: Storage chamber, 54: Cooling / humidification chamber, 55: Pipe for refrigerant, 56: Straight pipe, 57: piping for feeding, 58: piping for returning, 59: Freezing machine, 60: heating pipe, 61, 62: piping Gas

Claims (3)

A sealed room for storing a preservative material comprising any one or more of plants, fruits and vegetables, and other fresh foods including fresh flowers, and a temperature in the sealed room exceeding 0 ° C. and 10 A high-humidity cooler having cold-retaining means for adjusting the temperature to below ° C, and humidifying means provided in the sealed room for adding moisture to the air in the sealed room and humidifying to a relative humidity of 90% RH or more,
The humidifier is provided with an ethylene gas removing material that performs either 1 or 2 of adsorption and decomposition of ethylene gas generated from the stored material. The high-humidity cool box according to claim 1, wherein the ethylene gas removing material includes one or two of palladium and a palladium alloy. The high-humidity cool box according to any one of claims 1 and 2, wherein the humidifying means includes a hygroscopic material capable of absorbing moisture, and a sprinkling part that is disposed above the hygroscopic material and sprays the hygroscopic material. A storage tank that collects and stores water sprinkled from the water sprinkling section, and a pump that sends the water recovered in the storage tank to the water sprinkling section, and between the water sprinkling section and the storage tank. A high-humidity cool box characterized by placing an ethylene gas removal material.

Images