JP7297346B1 - Storage system and storage method for perishables - Google Patents

Abstract

Kind Code: A1 The present invention provides a system for preserving perishables with a cold storage material containing viscous ground food.
A system for preserving perishables, comprising at least one cold storage material containing viscous ground food, an antifreeze solution, an antifreeze cooling device for cooling the antifreeze solution to a pre-freezing temperature, and more. The outer peripheral surface side of has a double structure, a casing in which the cold storage material is stored, a space that is part of the casing and is formed inside the double structure, and a part of the space It has an entrance opening that opens to the outside of the casing, an exit opening that is a part of the space and opens to the outside of the casing, and a door formed in a part of the casing for taking in and out perishables. system.
[Selection drawing] Fig. 1

Description

TECHNICAL FIELD The present invention relates to a cold storage material for preserving perishables, and a preserving system and method for perishables using the same.

Raw fish and other raw foods should be immersed in ice water or ice water with a little salt added, and stored in a temperature range of 0°C to -2°C (hereinafter referred to as "pre-freezing temperature"). There are many.

The above-mentioned pre-freezing temperature is suitable not only for marine products such as raw fish, but also for general perishable products such as fruits and vegetables and livestock products, and is used not only for storage but also for aging and fermentation. Since perishables are not frozen, they are not damaged during the thawing process. For example, Patent Literature 1 discloses an invention for realizing an ice temperature warehouse in an underground building room.
Prior to the realization of pre-freezing temperature preservation using equipment, people in snowy regions dug holes in fields, put root vegetables in them, put straw mats on top of them, covered them with soil, and covered them with snow. has been preserved by It is a natural preservation method that takes advantage of the fact that the inside of the snow is warmer than the outside air and does not freeze, and is also suitable for aging.

Japanese Patent Application Laid-Open No. 2000-179063

When perishables are stored in air that has been cooled to a pre-freezing temperature (Patent Document 1), refrigeration equipment that realizes it must be equipped with a defrosting function. Since perishables are dried, it is necessary to have a function that takes this into account. These points are also inferior to Yukimuro.
When perishables are stored by immersing them in ice water that has been brought to a pre-freezing temperature, the ice floats on the surface of the water causing a difference in temperature between the top and bottom of the ice water, making it impossible to achieve a uniform pre-freezing temperature for the entire ice water. . Since ice has a higher thermal conductivity than water, it takes relatively more energy to keep it from melting.

An object of the present invention is to provide a cold storage material for preserving perishables at a pre-freezing temperature, and a system and method for preserving perishables using the same.

In order to solve the above problems, the present invention has the following configurations.
1) Aspects of the present invention include:
A cold storage material for storing perishables by putting them in the cold storage material or by bringing them into contact with the cold storage material,
A cold storage material containing viscous ground food and cooled and maintained at a pre-freezing temperature .
Alternatively,
The cold storage material is packed in a bag made of a flexible material.
2) As another aspect,
A system for preserving perishables,
the cold storage material;
antifreeze;
an antifreeze cooling device for cooling the antifreeze to a pre-freezing temperature;
a casing in which at least one outer peripheral surface side has a double structure and in which the cold storage material is stored;
a space that is part of the casing and formed inside the double structure;
an inlet opening that is part of the space and opens to the outside of the casing;
an outlet opening that is part of the space and opens to the outside of the casing;
a door for taking in and out perishables formed in a part of the casing;
The antifreeze cooled by the antifreeze cooling device is injected into the space from the inlet opening, the antifreeze is discharged from the outlet opening, and the discharged antifreeze is cooled by the antifreeze cooling device. , circulating back into the space, and
A system for preserving perishables by placing perishables in or contacting perishables with the cold storage material cooled and maintained at a pre-freezing temperature by the circulation.
Alternatively,
At least part of the cold storage material is packed in a bag made of a flexible material.
Alternatively,
A system wherein said antifreeze is salt water.
3) As another aspect,
A storage system for perishables,
the cold storage material;
a cooling device for cooling the cold storage material to a pre-freezing temperature;
a casing for storing the cold storage material;
an inlet opening that is part of the casing and opens to the outside of the casing;
an outlet opening that is part of the casing and opens to the exterior of the casing;
a door for taking in and out perishables formed in a part of the casing;
The cold storage material cooled by the cooling device is put in from the inlet opening, the cold storage material is discharged from the outlet opening in sequence, the discharged cold storage material is cooled by the cooling device, and reintroduced into the casing. circulating to and
A system for preserving perishables by placing them in or contacting the cold storage material within the casing cooled and maintained at a pre-freezing temperature by the circulation.
4) As an aspect of the present invention,
A method for preserving perishables,
cooling and maintaining a cold storage material containing viscous ground food to a pre-freezing temperature;
Perishables are placed in the cold storage material or brought into contact with the cold storage material.
5) As another aspect,
The cold storage material is packed in a bag made of a flexible material.
6) As another aspect,
The cold storage material includes ground Japanese yam.
7) Alternatively,
Any one of crushed, grated, or julienned radish, crushed, grated, or julienned potato, seaweed, or a residue obtained by removing starch from food, or It further includes a bulking material made in any combination .

By using a cold storage material with a lower thermal conductivity than water or ice water to store perishables in cold storage, it is less susceptible to temperature changes in constant temperature storage equipment, enabling longer-term storage of perishables. . Since it is a food-derived cold storage material, it can be eaten while being attached to fresh food to be stored, and even if the cold storage material leaks out of the constant temperature storage equipment, it is harmless. Maintaining the freshness of food for a longer time also contributes to reducing food loss. The cold storage material used can be reused as feed for livestock.

FIG. 1 is a schematic diagram showing a configuration example of the constant temperature storage facility of the present invention. FIG. 2 is a schematic diagram showing a configuration example for circulating antifreeze liquid in the constant temperature storage facility of the present invention. FIG. 3 is a schematic diagram showing a configuration example for circulating the cold storage material in the constant temperature storage facility of the present invention. FIG. 4 is a diagram illustrating an embodiment of the preservation method of the present invention. FIG. 5 is a diagram illustrating another embodiment of the storage method of the present invention.

TECHNICAL FIELD The present invention relates to a cold storage material using foods such as Japanese yam that are viscous when ground, and a system and method for preserving perishables using the same.
The cold storage material used here has the same meaning as cold insulation material, and refers to a material used for the purpose of cold storage.
The food may be viscous by grinding, or the food may be viscous before grinding. In any case, the cold storage material is produced using the food that is viscous after grinding. .

The reason why the cold storage material is made from ground viscous food is that it generally has low thermal conductivity to water or ice water and is suitable for cold storage of perishables. This is because when perishables are soaked in the cold storage material, the whole perishables can be wrapped at the temperature of the cold storage material.
Caught fish are often kept in ice water at a pre-freezing temperature until they are cooked in stores, etc. , It takes time and effort to crush it into a size suitable for use, and to maintain it without melting. A cold storage material that uses food that is viscous in a ground state can save such labor.
The cold storage material may contain solid matter as long as the purpose of wrapping the whole perishables in the cold storage material can be achieved, and as long as it can be circulated in a pipe as described later, Not only grated foods but also shredded foods and seaweed may be included. In addition, it is desirable to adjust the viscosity of the cold storage material suitable for such purposes with moisture or the like.
Storing perishables by wrapping the whole with a cold storage material can prevent perishables from drying out, which is advantageous for preserving perishables in air cooled to a pre-freezing temperature.

The reason why foods that are viscous when ground has a lower thermal conductivity than ice water or water is that the viscosity hinders convection and the internal temperature changes with respect to surface temperature changes. It is generally said that when a film is formed on the surface, less heat energy is taken away by evaporation and the temperature does not easily change.
Storing perishables by wrapping them in cold storage material, which is relatively resistant to temperature changes, makes it possible to store perishables at a uniform temperature, which is different from storing perishables by immersing them in ice water. all advantages.

Chinese yam is mainly assumed as a viscous food when ground.
The reason why Chinese yam is assumed to be the main food is that compared to other potatoes belonging to the Yamaceae family, Japanese yam and Japanese yam, it is less sticky, has a moisture content of more than 80%, and has a relatively bland taste. There is an advantage that the taste of fresh food has little effect on the taste and flavor of fresh food. In addition, since it has a high water content and a low viscosity compared to other yams, it has high fluidity, and fresh food can be directly placed in it and wrapped around fresh food, making it suitable for cold storage materials.
If the viscosity is too high, it will not sink and will not function as a cooling agent that enables envelopment of perishables. It is also possible to add water to grated Japanese yam to adjust the viscosity and increase the bulk of the material, thereby forming a cold storage material. Nitrogen may be injected into the water to obtain nitrogen-substituted water. It is possible to reduce the dissolved oxygen concentration and reduce the adverse effect of oxygen on the freshness of fresh food. Being able to store it for a longer period of time allows it to mature, which also leads to the extraction of the umami component.

In addition to the above advantages, the grated Chinese yam can be mixed with seasonings such as salt because it is liquid, and the seasonings permeate the perishables stored in the cold storage material. can also
Permeation of the seasoning makes it possible to further extend the storage period of the fresh food, and also allows the fresh food to be taken out from the cold storage material, cooked and eaten as it is. Alternatively, the aged perishables may be taken out of the cold storage material and eaten as they are.
Salt, sugar, and soy sauce are mainly assumed as seasonings, but other seasonings such as mirin that can permeate perishables may also be used. For example, 2% salt added to grated Chinese yam may be used.
The osmotic pressure can be adjusted by adjusting the salinity of the cold storage material, and this salinity adjustment can also change the thermal conductivity of the cold storage material.

In order to increase the bulk of the cold storage material as a whole, a bulking material may be added to the above cold storage material, which is a viscous ground food, to obtain a cold storage material.
The bulking materials include crushed, grated, or shredded radish, crushed, grated, or shredded potatoes, or seaweed, any one or any combination thereof, etc. can be used.
All of them are foods, so they are safe even if they enter the mouth with perishables to be preserved. It is harmless even if it overflows from the container in which the cold storage material is placed or the container in which the cold storage material is adjusted.
Adding bulking material can not only reduce the cost compared to simply producing a cold storage material from Chinese yam alone. The thermal conductivity of the cold storage material can be further reduced by the air entrapped when the Chinese yam and other foods are mixed. Furthermore, by using seaweeds that have no commercial value, it is possible to reduce the cost of producing cold storage materials, and it is environmentally friendly as it reduces food loss.
When salted Chinese yam is mixed with seaweed, the seaweed itself is a part of the cold storage material, and the freshness of the seaweed itself is maintained.

Starch is often used in food processing processes, and the residue obtained by removing starch may be used as a bulking material. Since this residue is disposed of as industrial waste, it is possible to reduce the cost of manufacturing cold storage materials, and it is also environmentally friendly because it reduces food loss.
A mixture obtained by stirring and heating starch and water or salt water may be used as the bulking material. Stirring the starch and hot water increases the viscosity, and when the fresh food is placed in the cold storage material, the effect of wrapping the fresh food becomes stronger, making it easier to maintain the fresh food at the temperature of the cold storage material. Potato starch has a higher expansion rate than starch derived from corn or wheat and is suitable for bulking purposes.
Even when a cold storage material is used by adding a volume-increasing material, seasonings such as salt can be added to permeate perishables.
The more viscous food and food that constitutes the bulking material are, the more time and labor it takes to prepare them.
When there is a possibility of eating the cold storage material together with the fresh food to be stored, the higher the health effect of the material constituting the cold storage material, the higher the significance of using the material. For example, the sticky component of Japanese yam contains mucin, which has a mucosal-protecting effect and is useful in preventing and improving gastritis and gastric ulcers. Grated daikon radish contains digestive enzymes (diastase) that help the work of the small intestine.
The above description does not exclude the case where a cold storage material is made by adding a bulking material and a combination of the bulking material and a viscous ground food other than Japanese yam.

The cold storage material may be packed in a bag of flexible material and brought into contact with perishables, as described below.
The cold storage material described above is common to any of the embodiments described later.

(1) First Embodiment In the first embodiment of the present invention, a cold storage material is cooled to a pre-freezing temperature in a refrigeration facility or the like, and fresh food is placed in the cold storage material for storage of fresh food. Bring perishables into contact with the cold storage material. For example, perishables such as sea urchins that lose their shape when placed in the cold storage material are brought into contact with the cold storage material by placing them on the upper surface of the cold storage material without putting them in the cold storage material.
By adding seasonings such as salt to the cold storage material as described above, the seasoning permeates the perishables placed in the cold storage material, thereby enabling long-term storage. The umami component is drawn out, and it is possible to eat it as it is. However, if you do not want the cold storage material to adhere to the perishables while maintaining such an effect, you can wrap the perishables in food grade gauze or the like to prevent the cold storage material from adhering and to easily remove the product. You can also Also, if you do not want seasoning to permeate perishables, you may wrap them in a waterproof package.

Alternatively, the cold storage material may be packed in a bag of flexible material and brought into contact with the perishables. When the cold storage material does not want to adhere to fresh food, the cold storage material itself is packed in a bag instead of wrapping each fresh food with gauze or the like as described above to avoid adhesion. Therefore, it is preferable that the bag be made of a material impermeable to moisture.
Putting it in a bag makes it easy to carry the cold storage material and makes its use more familiar. The reason why the bag needs to be a flexible material is that it can be brought into enveloping contact with the perishables. The most effective mode of the cold storage material according to the present invention is the mode in which perishables are directly placed in the cold storage material. The effectiveness of the material can be maintained.

(2) Second embodiment
In this embodiment, as shown in FIG. 4, the cold storage material 7 is maintained at the pre-freezing temperature by using the refrigerating equipment 40 set to the pre-freezing temperature.
The cold storage material 7 is put in a case 41, and the case 41 is put in the refrigeration equipment 40 instead of the cold storage material 7 itself, so that the cold storage material 7 is prevented from adhering to the refrigeration equipment 40.例文帳に追加The perishables 8 are taken in and out by opening and closing a door 43 formed in the case 41. - 特許庁
The perishables 8 may be placed in the cold storage material 7 as in the first embodiment, or may be stored in contact with the cold storage material 7 such as placed on the top surface of the cold storage material 7 . As in the first embodiment, the perishables 8 can be wrapped in gauze or the like to prevent the cold storage material 7 from adhering.

Alternatively, the cold storage material 7 may be packed in a bag of flexible material and brought into contact with the perishables 8 . The purpose and effect of packing the cold storage material 7 are the same as in the first embodiment.
When the cold storage material 7 is packed in a bag and used, the case 41 may not be used, so that the cold storage material 7 does not adhere to the refrigerating equipment 40 . It is preferable that the contact surface between the cold storage material 7 and the fresh food 8 is widened so that the fresh food 8 is wrapped in a bag containing the cold storage material 7 .

(3) Third Embodiment This embodiment, as shown in FIG. 5, is for using the cold storage material 7 according to the present invention in carrying.
A cold storage material 7 cooled to a pre-freezing temperature is put in a case 51, and the case 51 is put in a cold insulating box 50 having a heat insulating structure to maintain the temperature as much as possible. By using the case 51 , it is possible to prevent the cold storage material 7 from adhering to the cold insulation box 50 .
As in the second embodiment, the case 51 may be provided with a door for taking in and out the perishables 8 .
The perishables 8 may be placed in the cold storage material 7 as in the first embodiment, or may be stored in contact with the cold storage material 7 such as placed on the top surface of the cold storage material 7 . As in the first embodiment, the perishables 8 can be wrapped in gauze or the like to prevent the cold storage material 7 from adhering.

Alternatively, the cold storage material 7 may be packed in a bag of flexible material and brought into contact with the perishables 8 . The purpose and effect of packing the cold storage material 7 are the same as in the first embodiment.
When the cold storage material 7 is packed in a bag and used, the case 51 may not be used, so that the cold storage material 7 does not adhere to the cold insulation box 50 . It is preferable that the contact surface between the cold storage material 7 and the fresh food 8 is widened so that the fresh food 8 is wrapped in a bag containing the cold storage material 7 .

(4) Fourth Embodiment A fourth embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG.
As shown in FIG. 1, this embodiment is a storage system for perishables provided with constant-temperature storage equipment 1 using circulation of antifreeze liquid 9 in order to always maintain cold storage material 7 at a pre-freezing temperature. Also, the system is for storing perishables 8 by placing them in the cold storage material 7 or putting them in contact with the cold storage material 7 by placing them on the upper surface of the cold storage material 7 .

The system in this embodiment mainly has a constant temperature storage facility 1 and an antifreeze cooling device 3 .
A constant temperature storage facility 1 includes a casing 2 for storing a cold storage material 7 in which perishables 8 are placed. The casing 2 has a double structure on at least one or more outer peripheral surfaces. FIG. 1 shows an example in which the top plate 15 on the entire upper surface side of the casing 2 and the floor on the entire lower surface side of the casing 2 have a double structure.
For example, the floor of the entire lower surface side of the casing 2 may have a double structure, and a part of the upper surface side may have a double structure.

The reason why at least one outer peripheral surface side has a double structure is that a space is formed inside the double structure and serves as a path for circulating the antifreeze liquid 9 . FIG. 2 illustrates an example in which a top plate inner space portion 16 is formed inside a double structure top plate 15 and an underfloor space portion 19 is formed inside a double structure floor.

Another reason for the double structure is to prevent the cold storage material 7 and the antifreeze 9 from mixing.
As a result, it is possible to prevent the antifreeze 9 from having any effect on the food-derived cold storage material 7 and the perishables 8 to be put therein, and at the same time, it is possible to use an inexpensive and highly functional non-food as the antifreeze 9. become.
In FIG. 2, the antifreeze liquid 9 injected into the top plate inner space 16 is separated from the cold storage material 7 by the outer frame surface of the top plate 15, and the antifreeze liquid injected into the underfloor space 19 is located above the underfloor space. It is separated from the cold storage material 7 by a bottom 17 .

The space formed on the outer peripheral surface side, which is a part of the casing 2, has an inlet opening that opens to the outside of the space, that is, the casing 2, and takes in the antifreeze liquid 9, and the outside of the space, that is, the casing 2 and an exit opening for discharging the antifreeze 9.
In FIG. 2, the top plate inlet opening 11 and the top plate outlet opening 12 are formed in the top plate inner space portion 16, and the underfloor inlet opening portion 13 and the underfloor outlet opening portion 14 are formed in the underfloor space portion 19. is illustrated. The antifreeze liquid 9 is injected into the top plate inner space 16 through the top plate inlet opening 11 and is discharged out of the top plate inner space 16 through the top plate outlet opening 12 , that is, out of the casing 2 . Similarly, the antifreeze liquid 9 is injected into the underfloor space 19 through the underfloor inlet opening 13 and is discharged out of the underfloor internal space 19 , that is, out of the casing 2 through the underfloor outlet opening 14 .
It is preferable to use a heat insulating material on the outer peripheral surface of the casing 2 so that the cold storage material 7 and the antifreeze 9 are less susceptible to external temperature.
FIG. 2 shows an example in which one inlet opening and one outlet opening are provided in one space, but the present invention is not limited to this. is preferred.

A part of the casing 2 is formed with a door for taking in and out perishables 8 . FIG. 2 shows an example in which the top plate 15 itself serves as a door, and the handle 28 is grasped and the hinge 27 is used as an axis to open the door. In another aspect, not limited to this, for example, a door may be formed on a part of the top plate 15, and when a double structure top plate 15 is provided on a part of the upper surface side of the casing 2 A door may be provided on the double structure top plate 15 itself or a part thereof, or a door may be provided on all or part of the upper surface side of the casing 2 which is not double structure. .

The system in this embodiment comprises an antifreeze cooling device 3 for cooling the antifreeze 9 to a pre-freezing temperature.
When the antifreeze liquid 9 discharged from the constant temperature storage facility 1 enters, the antifreeze liquid cooling device 3 cools it to a pre-freezing temperature and sends it out to the constant temperature storage facility 1 .
The antifreeze cooling device 3 may have a control function of measuring the temperature of the cold storage material 7 stored in the casing 2 with a thermometer and cooling the antifreeze to a temperature that is equal to the pre-freezing temperature.
The antifreeze solution is also called brine solution, and is generally commercially available with ethylene glycol, propylene glycol, or the like as the main component. Also in this embodiment, a common and inexpensive antifreeze solution can be used.
Alternatively, the antifreeze may be salt water. It has an advantage in that it does not affect the human body when it leaks. Since not only perishables 8 but also the cold storage material 7 is derived from food, by using food for the antifreeze liquid, the safety of the entire system as a system handling food can be ensured.

The antifreeze cooling device 3 and the constant temperature storage facility 1 are connected by, for example, a circulation pipe 6 , and the pressure of the pump 4 causes the antifreeze 9 to circulate through the circulation pipe 6 .
In this embodiment, the antifreeze liquid 9 circulates in the direction indicated by the arrow in FIG. The antifreeze 9 cooled by the antifreeze cooling device 3 is injected from the top plate inlet opening 11 and the underfloor inlet opening 13 into the top plate inner space 16 and the underfloor space 19 , and the antifreeze 9 is poured into the top plate outlet opening 12 in sequence. The discharged antifreeze liquid 9 is cooled by the antifreeze liquid cooling device 3 and circulated to the spaces 16 and 19 of the constant temperature storage facility 1 again.
In this manner, the space portions 16 and 19 are cooled by the circulating antifreeze liquid 9 , thereby cooling the cold storage material 7 .

As a method for circulating the antifreeze liquid, it is also possible to inject the antifreeze liquid 9 by directly pouring it into the floor surface space 19 from the underfloor inlet opening 13 as shown on the lower side of the casing in FIG.
2, the antifreeze liquid 9 can be circulated in the space pipe 26 by running the space pipe 26 along the top plate space 16. As shown in FIG. In either case, the outer surfaces of the space portions 16 and 19 are cooled by lowering the temperature of the space portions 16 and 19, and the cold storage material 7 is cooled.

By using the antifreeze circulation system, the cold storage material can be maintained at the pre-freezing temperature by the antifreeze maintained at the pre-freezing temperature. Antifreeze itself is readily available and relatively inexpensive in that respect. In addition, compared to the case of using ice water to obtain the pre-freezing temperature, it is possible to reduce the time and effort required to prepare ice at the pre-freezing temperature, to crush the ice to a size suitable for use, and to maintain the ice without melting it.
Combined with the characteristics of the cold storage material 7, which has a low thermal conductivity compared to ice water or water, temperature variations in the casing 2 can be suppressed. there is

As another form, at least part of the cold storage material 7 in the casing 2 may be packed in a bag made of a flexible material. The arrangement of the packed cold storage material 7 is not limited. may be stored in contact with the packed cold storage material 7 . In addition, the inside of the casing is partitioned to separate the cold storage material 7 depending on the presence or absence of packing, the side containing the packed cold storage material 7 is defined as a space where the cold storage material 7 does not adhere, and the other side is used as a freshness for permeating the seasoning. It may also be a space for an object 8.
When using the cold storage material 7 in either mode, it is brought into contact with the perishables 8 so as to envelop the perishables 8 in order to preserve the advantages of the present invention when compared to storing the perishables 8 in air at a pre-freezing temperature. It is preferable that the cold storage material 7 exists within the casing 2 to the extent possible.

(5) Fifth Embodiment A fifth embodiment of the present invention will be described with reference to FIG.
In the fourth embodiment, the cold storage material 7 is cooled via the antifreeze 9 cooled by the antifreeze cooling device 3, but in the present embodiment, the cold storage material 7 itself is cooled by the cooling equipment 31, is circulated between the cooling device 31 and the constant temperature storage facility 30 .

The system of this embodiment mainly has a constant temperature storage facility 30 and a cooling device 31 . The constant temperature storage facility 30 includes a casing 32 for storing the cold storage material 7 in which the perishables 8 are placed. A heat insulating material is preferably used for the outer peripheral surface of the casing 32 so that the cold storage material 7 is less susceptible to external temperature.
A part of the casing 32 has an inlet opening 36 that opens to the outside of the casing for injecting the circulating cold storage material 7 into the casing 32 and an outlet opening that opens to the outside of the casing for discharging the circulating cold storage material 7. A portion 37 is provided.
In FIG. 3, one inlet opening 36 and one outlet opening 37 are arranged approximately diagonally within the casing 32 . When the cold storage material 7 is accumulated in the casing 32, the cold storage material 7 is injected from the inlet opening 36, and when it accumulates up to the upper part of the casing 32, it is sequentially discharged out of the casing 32 from the outlet opening 37 located above the casing. This is an example of arranging it in a position where it will be discharged.
In addition to this example, the inlet openings 36 and the outlet openings 37 may be provided at positions and in number that efficiently convection occurs in the process of injecting the cold storage material 7 into the casing and discharging it. In particular, unlike the fourth embodiment, the material to be circulated is not the antifreeze liquid 9 but the cold storage material 7 having viscosity. 37 may be provided.

As in the fourth embodiment, the constant temperature storage facility 30 has a door formed in a portion of the casing 32 for putting in and taking out perishables. FIG. 3 shows an example in which the top plate 35 itself on the entire upper surface of the casing 32 serves as a door, and a handle 38 is grasped to open with a hinge 39 as an axis. The door is not limited to this, and may be a door formed on a part of the upper surface of the casing 32 .

The system of this embodiment has a cooling device 31 for cooling the cold storage material 7 to a pre-freezing temperature.
When the cold storage material 7 discharged from the constant temperature storage facility 1 enters, the cooling device 31 cools it to a pre-freezing temperature and sends it out to the constant temperature storage facility 1 .
The cooling device 3 may have a control function of measuring the temperature of the cold storage material 7 stored in the casing 32 with a thermometer and cooling the cold storage material 7 to a temperature such that the measured value becomes the pre-freezing temperature. .

The constant temperature storage equipment 1 and the cooling device 31 are connected by, for example, a pipe, and the cold storage material 7 is circulated through the circulation pipe 6 by the pressure of the pump 4 .
Since the cold storage material needs to be viscous enough to move inside the pipe, the viscosity is moderated with water or the like.
In this embodiment, the cold storage material 7 circulates in the direction indicated by the arrow in FIG. The cold storage material 7 cooled by the cooling device 3 is injected into the casing 32 from the inlet opening 36 , the cold storage material 7 is discharged from the outlet opening 37 in sequence, and the discharged cold storage material 7 is cooled by the cooling device 31 . , is again injected into the casing 32 of the constant temperature storage facility 1 and circulated.
The perishables 8 are stored at the pre-freezing temperature by putting the perishables 8 in the cold storage material 7 cooled as described above, or by placing the perishables 8 on the upper surface of the cool storage material 7 or by bringing them into contact with each other.
The cold storage material 7 may be stored in the casing 32 and then circulated, or may be stored during the circulation process.
The system of this embodiment can store perishables 8 at a pre-freezing temperature by means of the cold storage material 7 which is always maintained at the pre-freezing temperature. By using the cold storage material according to the present invention, which has a low thermal conductivity compared to storing perishables in ice water at a pre-freezing temperature, it is possible to suppress variations in the temperature inside the casing, and to reduce the pre-freezing temperature. Reduces the time and effort required to create, store, and shave ice for use. From the above points, the system in this embodiment is suitable for storing perishables 8 .

In this embodiment, unlike the fourth embodiment, the cold storage material 7 itself is cooled and the antifreeze liquid 9 is not used.
Alternatively, the fourth embodiment and the fifth embodiment may be used together. That is, the system may be such that both the antifreeze liquid 9 and the cold storage material 7 can be circulated. In this form, the time required for the cold storage material 7 to reach the pre-freezing temperature can be shortened, and the cold storage material 7 can be easily maintained at the pre-freezing temperature.

As another form, part of the cold storage material 7 in the casing 2 may be packed in a bag made of a flexible material. In this case, the packed cold storage material 7 is cooled to the pre-freezing temperature by the circulating cold storage material 7 . The perishables 8 to be avoided from adhering to the cold storage material 7 are kept in contact only with the packed cold storage material 7. - 特許庁
To preserve the advantages of the present invention when compared to storing perishables 8 in air at pre-freezing temperatures, cold storage material 7 is placed in casing 2 to the extent that perishables 8 are in enveloping contact. preferably within.

The cold storage material according to the present invention, the method for storing perishables using the same, the storage system, the constant temperature storage facility, the cooling device, and the like are not limited to the configurations according to the above-described embodiments and modifications, and are described in the claims. Various cold storage material materials, methods of circulating antifreeze or cold storage materials, methods of connecting cooling equipment and constant temperature storage equipment, methods of applying pressure to circulating antifreeze or cold storage materials, etc. It encompasses various aspects such as combinations with well-known and commonly used techniques, including combinations of

1 Constant temperature storage equipment 2 Casing 3 Antifreeze cooler 4 Pump 6 Circulation pipe 7 Cold storage material 8 Perishables 9 Antifreeze

11 Top plate inlet opening 12 Top plate outlet opening 13 Underfloor inlet opening 14 Underfloor outlet opening 15 Top plate 16 Top plate inner space 17 Upper base 18 Lower base 19 Underfloor space 26 Space inner pipe 27 Hinge 28 Handle

30 Constant temperature storage facility 31 Cooling device 32 Casing 35 Top plate 36 Entrance opening 37 Exit opening 38 Handle 39 Hinge

40 refrigeration equipment 41 case 43 door

50 Insulated box 51 Case

Claims (17)

A cold storage material for storing perishables by putting them in the cold storage material or by bringing them into contact with the cold storage material,
A cold storage material containing viscous ground food and cooled and maintained at a pre-freezing temperature . 2. The regenerator material according to claim 1, wherein the regenerator material comprises ground Chinese yam. Any one of crushed, grated, or julienned radish, crushed, grated, or julienned potato, seaweed, or a residue obtained by removing starch from food, or 3. The cold storage material according to claim 2 , further comprising a bulking material produced by arbitrarily combining them . 2. The cold storage material according to claim 1, wherein said cold storage material is packed in a bag made of a flexible material. 5. The regenerator material according to claim 4, wherein the regenerator material comprises ground Chinese yam. Any one of crushed, grated, or julienned radish, crushed, grated, or julienned potato, seaweed, or a residue obtained by removing starch from food, or 6. The cold storage material according to claim 5 , further comprising a bulking material produced by arbitrarily combining them . A storage system for perishables,
a cold storage material comprising viscous ground food;
antifreeze;
an antifreeze cooling device for cooling the antifreeze to a pre-freezing temperature;
a casing in which at least one outer peripheral surface side has a double structure and in which the cold storage material is stored;
a space that is part of the casing and formed inside the double structure;
an inlet opening that is part of the space and opens to the outside of the casing;
an outlet opening that is part of the space and opens to the outside of the casing;
a door for taking in and out perishables formed in a part of the casing,
The antifreeze cooled by the antifreeze cooling device is injected into the space from the inlet opening, the antifreeze is discharged from the outlet opening, and the discharged antifreeze is cooled by the antifreeze cooling device. , being injected into the space again and circulating; and
A system for preserving perishables by placing perishables in or contacting perishables with the cold storage material cooled and maintained at a pre-freezing temperature by the circulation. 8. The system of claim 7, wherein at least a portion of said cold storage material is packed in a bag of flexible material. 8. The system of claim 7, wherein said antifreeze is salt water. 9. The system of claim 8, wherein said antifreeze is salt water. A storage system for perishables,
a cold storage material comprising viscous ground food;
a cooling device for cooling the cold storage material to a pre-freezing temperature;
a casing for storing the cold storage material;
an inlet opening that is part of the casing and opens to the outside of the casing;
an outlet opening that is part of the casing and opens to the exterior of the casing;
a door for taking in and out perishables formed in a part of the casing,
The cold storage material cooled by the cooling device is injected from the inlet opening, the cold storage material is sequentially discharged from the outlet opening, the discharged cold storage material is cooled by the cooling device, and the casing is again cooled. injecting into and circulating; and
A system for preserving perishables by placing them in or contacting the cold storage material within the casing cooled and maintained at a pre-freezing temperature by the circulation. The system according to any one of claims 7 to 11, wherein the cold storage material comprises ground Chinese yam. Any one of crushed, grated, or julienned radish, crushed, grated, or julienned potato, seaweed, or a residue obtained by removing starch from food, or 13. The system of claim 12 , further comprising bulking materials made in any combination . A method for preserving perishables,
cooling and maintaining a cold storage material containing viscous ground food to a pre-freezing temperature;
A preservation method in which perishables are placed in the cold storage material or brought into contact with the cold storage material. A method for preserving perishables,
packing a cold storage material containing a viscous ground food product into a bag of flexible material to cool and maintain to a pre-freezing temperature;
A preservation method in which perishables are placed in the cold storage material or brought into contact with the cold storage material. 16. The storage method according to claim 14 or 15, wherein the cold storage material contains ground Chinese yam. Any one of crushed, grated, or julienned radish, crushed, grated, or julienned potato, seaweed, or a residue obtained by removing starch from food, or 17. The storage method according to claim 16 , further comprising a bulking material produced in any combination .

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