Storage system and in-warehouse cooling system

Abstract

A storage system is provided in a storage compartment (1) in which air in a first space (3) in a first case (2) is cooled by a cooling device (10). The storage system comprises a second housing (61), an air conditioning device (50), an air supply path (275) and a cooling mechanism (70), the second housing (61) is arranged in the first space (3) and forms a second space (62) for storing the stored objects, the air conditioning device (50) adjusts the composition of air supplied to the second space (62), and the air supply path (275) supplies air to the second space (62). The gas supply path (275) supplies the first gas, the composition of which has been adjusted by the air conditioning device (50), to the second space (62), and the cooling mechanism (70) is provided on at least a part of the gas supply path (275) and cools the first gas.

Description

Technical Field

[0001] This disclosure relates to a storage system and an in-warehouse cooling system. Background Technology

[0002] The method for storing fruits and vegetables described in Patent Document 1 involves arranging multiple containers for storing fruits and vegetables in a refrigerated compartment, and supplying a prescribed storage gas to each container (storage space) via hoses. In this way, by arranging the containers in the refrigerated compartment, storage spaces are created within the refrigerated compartment, and the air composition of these storage spaces is adjusted to be optimal for storing fruits and vegetables.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 60-30638 Summary of the Invention

[0006] -The technical problem the invention aims to solve-

[0007] In the storage method of Patent Document 1, the air composition inside the container (storage space) arranged in a storage room such as a cold storage room can be adjusted, but the air temperature of the storage space changes only in conjunction with the air temperature inside the storage room, so the temperature of the storage space cannot be properly controlled.

[0008] The purpose of this disclosure is to properly control the temperature of the storage spaces within the storage facility.

[0009] - Technical solutions used to solve technical problems -

[0010] The first aspect is a storage system installed in a storage silo 1 in which the air in the first space 3 inside the first housing 2 is cooled by a refrigeration device 10.

[0011] The storage system includes a second housing 61, an air conditioning device 50, a gas supply path 275, and a cooling mechanism 70. The second housing 61 is arranged inside the first space 3 to form a second space 62 for storing the stored items. The air conditioning device 50 adjusts the composition of the air supplied to the second space 62. The gas supply path 275 supplies the second space 62 with a first gas whose composition has been adjusted by the air conditioning device 50. The cooling mechanism 70 is disposed on at least a portion of the gas supply path 275 to cool the first gas.

[0012] In the first aspect, a first gas that has been cooled by the cooling mechanism 70 can be supplied to the second space 62. As a result, compared with the case where the air temperature of the second space 62 is adjusted only by using the air inside the storage room that has been cooled by the refrigeration device 10, the air temperature of the second space 62 can be appropriately controlled.

[0013] Secondly, based on the first aspect, the cooling mechanism 70 uses the air in the first space 3 to cool the first gas in the gas supply path 275.

[0014] In the second aspect, the cooling mechanism 70 can cool the first gas by transferring heat from the first gas through the gas supply path 275 to the cooled air in the first space 3. Therefore, the first gas can be cooled simply without the need for special devices in the cooling mechanism 70.

[0015] Thirdly, based on the first or second aspect, the cooling mechanism 70 has a first pipe section 70 that forms part of the gas supply passage 275, the first pipe section 70 being made of a material with a higher thermal conductivity than the material used to make the gas supply passage 275 other than the first pipe section 70.

[0016] In the third aspect, in the first pipe section 70 of the gas supply path 275, the cooling of the first gas is promoted by utilizing the already cooled air in the first space 3. Thus, the first gas can be easily cooled by utilizing a portion of the gas supply path 275.

[0017] Fourthly, based on the first or second aspect, the cooling mechanism 70 has a first tube 70 made of metal or glass, which constitutes at least a portion of the gas supply passage 275.

[0018] In the fourth aspect, since the thermal conductivity of the first tube 70 is relatively high, the first gas passing through the first tube 70 can be cooled quickly.

[0019] The fifth aspect, based on any one of the first to fourth aspects, further includes a gas-liquid separator 80 that separates the liquid flowing together with the first gas flowing in the gas supply path 275.

[0020] The gas-liquid separator 80 is arranged downstream of the cooling mechanism 70 in the direction of flow of the first gas, or arranged further downstream of the cooling mechanism 70 in the direction of flow of the first gas.

[0021] In the fifth aspect, the first gas can be supplied only to the second space 62, thereby preventing liquid passing through the gas supply path 275 from flowing into the second space 62. This prevents water from splashing onto the stored items in the second space 62, thus preventing a decrease in the quality of the stored items.

[0022] The sixth aspect, based on any one of the first to fifth aspects, involves the air conditioning device 50 adjusting the first gas supplied to the second space using a gas molecule adsorption-desorption system employing zeolite or metal-organic frameworks.

[0023] In the sixth aspect, a gas molecule adsorption-desorption system using zeolite can be used to supply nitrogen-rich gas and relatively humid air as the first gas to the second space 62.

[0024] The seventh aspect is based on any one of the first to sixth aspects, wherein the first housing 2 is made of a material with higher thermal insulation properties than the second housing 61.

[0025] In the seventh aspect, it is possible to suppress the temperature rise of the air in the first space 3 and to promote heat transfer between the first space 3 and the second space 62. Thus, the air temperature in the second space 62 can be cooled relatively quickly using the air that has already been cooled in the first space 3.

[0026] The eighth aspect is that, based on any one of the first to seventh aspects, the second housing 61 has a transparent material that allows for visual confirmation of the interior of the second space 62.

[0027] In the eighth aspect, even without entering the second space 62, the contents of the second space 62 can be visually confirmed from outside the second shell 61.

[0028] In the ninth aspect, based on any one of the first to eighth aspects, a plurality of second housings 61 are arranged in the first space 3, the gas supply passage 275 has a first flow path 275A and a plurality of second flow paths 275B, one end of the first flow path 275A is connected to the air conditioning device 50, one end of the plurality of second flow paths 275B is connected to the other end of the first flow path 275A, and the other end of the plurality of second flow paths 275B is respectively connected to the second housings 61, and the cooling mechanism 70 is disposed on the first flow path 275A.

[0029] In the ninth aspect, for example, when retrieving a target stored item, only the second housing 61 containing the target stored item needs to be opened, while the other second housings 61 remain closed. Therefore, changes in the air composition of the second space 62 of the other second housings 61 can be suppressed.

[0030] The tenth aspect is an in-storage cooling system comprising a storage system 60 of any one of the first to ninth aspects, a first housing 2, and a refrigeration device 10, wherein the first housing 2 forms a first space 3 on which the second housing 61 is disposed, and the refrigeration device 10 cools the air in the first space 3.

[0031] In the tenth aspect, an in-cabin cooling system comprising a storage system 60, a first housing 2, and a refrigeration device 10 can be provided.

[0032] Eleventh aspect, based on the tenth aspect, includes the provision of multiple storage systems 60 in the first space 3.

[0033] In the eleventh aspect, for example, the air in multiple second spaces 62 can be adjusted to a target air composition. Therefore, it is possible to store various types of stored goods with different storage conditions in a single storage room 1. Attached Figure Description

[0034] Figure 1 This is a longitudinal sectional view of a storage warehouse schematically illustrating the structure of the storage system and the internal cooling system involved in the embodiment.

[0035] Figure 2 This is a piping system diagram for a refrigeration unit.

[0036] Figure 3 It is a three-dimensional diagram schematically showing the structure of the storage unit.

[0037] Figure 4 This is a diagram of the piping system for an air conditioning unit.

[0038] Figure 5 It is a block diagram of the main machines of refrigeration and air conditioning units.

[0039] Figure 6 This is a schematic diagram showing a longitudinal cross-section of a gas-liquid separator.

[0040] Figure 7 This illustrates the equivalent of an air conditioning unit that performs its first action during operation when the oxygen concentration decreases. Figure 4 The image.

[0041] Figure 8 This illustrates the equivalent of an air conditioning unit performing a second action during operation when the oxygen concentration is reduced. Figure 4 The image.

[0042] Figure 9 This illustrates the equivalent of an air conditioning unit that performs the first action during oxygen supply operation. Figure 4 The image.

[0043] Figure 10This illustrates the equivalent of an air conditioning unit performing a second action during oxygen supply operation. Figure 4 The image.

[0044] Figure 11 This is a diagram schematically showing a portion of the structure of the in-cabin cooling system involved in Modification 1.

[0045] Figure 12 This is a diagram schematically showing a portion of the structure of the in-cabin cooling system involved in Variation Example 2. Detailed Implementation

[0046] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. It should be noted that the following embodiments are essentially preferred examples and are not intended to limit the present invention, its application, or its uses. Furthermore, the structures in the various embodiments, modifications, and other examples described below can be combined or partially substituted within the scope of implementing the present invention.

[0047] (1) In-warehouse cooling system

[0048] like Figure 1 As shown, the in-storage cooling system 100 of this embodiment is applied to a storage room 1. The storage room 1 stores fresh foods such as fruits and vegetables, fresh fish or lean meat, grains or flowers, etc. The storage room 1 is, for example, a fixed storage room for storing fruits and vegetables. The in-storage cooling system 100 includes the storage room 1, a refrigeration device 10, and a storage system 60.

[0049] Storage cellar 1 has an internal space 3. The internal space 3 is an example of a first space 3. Storage cellar 1 has a storage cell body 2 that forms the internal space 3. The storage cell body 2 is an example of a first shell 2. Insulation material (not shown) is provided in the storage cell body 2. Thus, the storage cell body 2 has insulation between itself and the outside air.

[0050] The refrigeration unit 10 cools the air in the storage space 3 (also called the storage air). Details of the refrigeration unit 10 will be described later.

[0051] The storage system 60 has a storage unit 61, which is arranged to divide the internal space 3. The storage unit 61 has an internal storage space 62. The storage space 62 is an example of a second space 62. The storage system 60 has an air conditioning unit 50. The air conditioning unit 50 is a device for so-called CA (Controlled Atmosphere). The air conditioning unit 50 regulates the composition of the air outside the storage compartment 1.

[0052] (2) Refrigeration equipment

[0053] The refrigeration unit 10 has a utilization unit and a heat source unit. The utilization unit and the heat source unit are connected to each other via connecting pipes (refrigerant pipes).

[0054] The unit is arranged within the storage space 3. The unit includes an internal heat exchanger 29, an internal fan 30, and an expansion valve 31. The internal heat exchanger 29 cools the air inside the storage space. The internal fan 30 supplies air from inside the storage space to the internal heat exchanger 29.

[0055] The heat source unit includes a compressor 25, an external heat exchanger 26, and an external fan 27. The compressor 25 compresses the drawn-in refrigerant and sprays the compressed refrigerant into the refrigerant pipeline. The external heat exchanger 26 releases heat to the outside air. The external fan 27 delivers outside air to the external heat exchanger 26.

[0056] like Figure 2 As shown, the compressor 25, the external heat exchanger 26, the expansion valve 31, and the internal heat exchanger 29 are connected by pipes to form a refrigerant circuit R. When the compressor 25 is working, the refrigerant will circulate in the refrigerant circuit R to perform vapor compression refrigerant circulation.

[0057] like Figure 5 As shown, the refrigeration unit 10 includes an internal temperature sensor 51 and an external temperature sensor 52. The internal temperature sensor 51 detects the temperature of the air inside the storage chamber 1. The external temperature sensor 52 detects the temperature of the air outside the storage chamber 1.

[0058] like Figure 5 As shown, the refrigeration device 10 has a first control unit C1. The first control unit C1 includes a microprocessor, electrical circuits, and electronic circuits. The microprocessor includes a central processing unit (CPU), memory, a communication interface, analog input / output, and contact input / output interfaces. The memory stores various programs that the CPU executes and the data used by those programs.

[0059] The first control unit C1 controls various components of the refrigeration unit 10. Specifically, the first control unit C1 controls the speed of the compressor 25, the speed of the internal fan 30, the speed of the external fan 27, and the opening degree of the expansion valve 31. The measured values ​​of the internal temperature sensor 51 and the external temperature sensor 52 are input to the first control unit C1.

[0060] (3) Storage system

[0061] like Figure 1 As shown, the storage system 60 is installed in the storage room 1, which uses a refrigeration device 10 to cool the air in the storage space 3 inside the main body 2 of the storage room.

[0062] The storage system 60 includes a storage unit 61, an air conditioning unit 50, a gas supply pipe 275, and a cooling mechanism 70.

[0063] (3-1) Storage Unit

[0064] like Figure 1 and Figure 3 As shown, storage unit 61 is arranged inside the storage space 3. Storage unit 61 stores stored items. Storage unit 61 is box-shaped. Storage unit 61 is an example of a second shell 61. Storage unit 61 forms a storage space 62 inside. Storage space 62 holds stored items. Storage space 62 is an example of a second space 62.

[0065] The storage unit 61 is made of a transparent material that allows the interior of the storage space 62 to be visually inspected from the outside. Specifically, each surface of the storage unit 61 is composed of a quadrilateral frame 63 and a resin sheet 64 covering the inner frame of the frame 63. The storage unit 61 is configured so that no gaps are formed between the surfaces. As a result, the airtightness of the storage space 62 is maintained. The top of the storage unit 61 is configured to be detachable from the storage unit 61. By detaching the top of the storage unit 61, fruits and vegetables can be stored in or removed from the storage unit 61. Thus, since the storage unit 61 is composed of the resin sheet 64 and the frame 63, the thermal insulation of the storage unit 61 is lower than that of the storage body 2 of the storage room 1. In other words, the storage body 2 is made of a material with higher thermal insulation than the storage unit 61.

[0066] A gas supply pipe 275 and a ventilation exhaust pipe 280 are connected to the storage unit 61. The gas supply pipe 275 will be described later. The ventilation exhaust pipe 280 expels air from the storage space 62 to the outside. A ventilation exhaust valve 151 is provided on the ventilation exhaust pipe 280. The ventilation exhaust valve 151 is an on / off valve composed of a solenoid valve.

[0067] The storage unit 61 is equipped with a unit temperature sensor 55, a unit humidity sensor 56, and an oxygen sensor 57. These sensors will be described later.

[0068] (3-2) Air conditioning unit

[0069] like Figure 4 As shown, the air conditioning unit 50 adjusts the composition of the outside air and supplies conditioned gas to the storage space 62. The conditioned gas is an example of a first gas. The air conditioning unit 50 includes a filter unit 220, a main unit 200, a gas supply pipe 275, a gas discharge pipe 276, and a second control unit C2.

[0070] The air conditioning unit 50 utilizes a gas molecule adsorption-desorption system using zeolite to adjust the conditioned gas supplied to the receiving space 62. Specifically, the air conditioning unit 50 is a gas separation device using the so-called Vacuum Pressure Swing Adsorption (VPSA) method. The air conditioning unit 50 separates the outside air (atmosphere) being processed into a nitrogen-rich gas with a higher nitrogen concentration and a lower oxygen concentration compared to the atmosphere, and an oxygen-rich gas with a lower nitrogen concentration and a higher oxygen concentration compared to the atmosphere.

[0071] (3-2-1) Filter unit, external air duct

[0072] The filter unit 220 is a box-shaped component. The filter unit 220 includes an air filter 221. The air filter 221 is a filter used to capture dust, salt, and other contaminants contained in the outside air. In this embodiment, the air filter 221 is a membrane filter with air permeability and water resistance.

[0073] The filter unit 220 is connected to the main unit 200 via an external air pipe 241. One end of the external air pipe 241 is connected to the filter unit 220. The other end of the external air pipe 241 is connected to the air pump 231, which will be described later. The external air pipe 241 guides outside air (atmosphere) that has passed through the air filter 221 to the air pump 231 as the air to be processed.

[0074] (3-2-2) Main Unit

[0075] The main unit 200 is located outside the storage chamber 1. The main unit 200 includes an air pump 231, a first adsorption cylinder 234, a second adsorption cylinder 235, a first switching valve 232, a second switching valve 233, and a unit housing 201 that houses them. The unit housing 201 houses an inlet pipe 242, a suction pipe 243, a first air pipe 244, and a second air pipe 245.

[0076] (3-2-3) Air pump

[0077] Air pump 231 includes a pressurizing pump 231a, a depressurizing pump 231b, and a drive motor 231c. The pressurizing pump 231a and the depressurizing pump 231b respectively draw in air and eject it. The pressurizing pump 231a and the depressurizing pump 231b are connected to the drive shaft of the drive motor 231c. That is, the pressurizing pump 231a and the depressurizing pump 231b are driven by a single drive motor 231c.

[0078] The other end of an external air pipe 241 is connected to the suction port of the pressurized pump 231a. One end of an inlet pipe 242 is connected to the discharge port of the pressurized pump 231a. The pressurized pump 231a supplies the air to be processed, which has been drawn in from the external air pipe 241, to the first adsorption cylinder 234 and the second adsorption cylinder 235 through the inlet pipe 242.

[0079] A suction pipe 243 is connected to the suction port of the pressure-reducing pump 231b. A first air pipe 244 is connected to the discharge port of the pressure-reducing pump 231b. The pressure-reducing pump 231b sprays the gas that has been drawn in from the first adsorption cylinder 234 and the second adsorption cylinder 235 through the suction pipe 243 into the first air pipe 244.

[0080] (3-2-4) Inlet pipe

[0081] The inlet pipe 242 is a conduit that guides the treated air ejected by the pressurized pump 231a toward the first adsorption cylinder 234 and the second adsorption cylinder 235. One end of the inlet pipe 242 is connected to the nozzle of the pressurized pump 231a. The inlet pipe 242 branches into two branch pipes at the other end, one branch pipe being connected to the first switching valve 232 and the other branch pipe being connected to the second switching valve 233.

[0082] (3-2-5) Suction tube

[0083] The suction pipe 243 is a conduit that guides the gas flowing from the first adsorption cylinder 234 and the second adsorption cylinder 235 toward the pressure-reducing pump 231b. One end of the suction pipe 243 is connected to the suction port of the pressure-reducing pump 231b. The suction pipe 243 branches into two branch pipes at the other end, one branch pipe is connected to the first switching valve 232, and the other branch pipe is connected to the second switching valve 233.

[0084] (3-2-6) First trachea

[0085] The first gas pipe 244 is a conduit for supplying nitrogen-rich gas ejected from the pressure-reducing pump 231b. One end of the first gas pipe 244 is connected to the outlet of the pressure-reducing pump 231b. The other end of the first gas pipe 244 is connected to the gas supply pipe 275.

[0086] A check valve 264 is provided on the first gas pipe 244. The check valve 264 only allows gas to flow from one end of the first gas pipe 244 to the other end, cutting off the reverse flow of gas.

[0087] (3-2-7) Switching valve

[0088] The first switching valve 232 and the second switching valve 233 are both switching valves with three valve ports. The first switching valve 232 and the second switching valve 233 are respectively configured in the first state ( Figure 4The state represented by the solid line in the middle) and the second state ( Figure 4 The valve switches between states indicated by dashed lines. The first state is when the first valve port is connected to the second valve port but disconnected from the third valve port. The second state is when the first valve port is connected to the third valve port but disconnected from the second valve port.

[0089] The first valve port of the first switching valve 232 is connected to one end of the first adsorption cylinder 234. Additionally, the first switching valve 232 has a branch pipe of the inlet pipe 242 connected to its second valve port, and a branch pipe of the suction pipe 243 connected to its third valve port. The first switching valve 232 switches the first adsorption cylinder 234 between a state connected to the pressurized pump 231a and a state connected to the depressurized pump 231b.

[0090] The first valve port of the second switching valve 233 is connected to one end of the second adsorption cylinder 235. Additionally, a branch pipe of the inlet pipe 242 is connected to the second valve port of the second switching valve 233, and a branch pipe of the suction pipe 243 is connected to the third valve port. The second switching valve 233 switches the second adsorption cylinder 235 between a state connected to the pressurized pump 231a and a state connected to the depressurized pump 231b.

[0091] (3-2-8) Adsorption cylinder

[0092] The first adsorption cylinder 234 and the second adsorption cylinder 235 are components comprising a cylindrical container closed at both ends and an adsorbent filled in the container. The adsorption cylinders 234 and 235 use the adsorbent to separate the air to be treated (in this embodiment, outside air) into oxygen-rich gas and nitrogen-rich gas.

[0093] The adsorbents filled in adsorption cylinders 234 and 235 have the following properties: they adsorb nitrogen and water (water vapor) from the air being treated under pressurized conditions (higher than atmospheric pressure) and desorb nitrogen and water under depressurized conditions (lower than atmospheric pressure). Porous zeolite is an example of an adsorbent with such properties, having micropores with a pore size smaller than the molecular diameter of a nitrogen molecule (3.0 Å) and larger than the molecular diameter of an oxygen molecule (2.8 Å).

[0094] (3-2-9) Second trachea

[0095] The second trachea 245 includes a main tube 246, a first branch tube 247a, a second branch tube 247b, a supply-side branch tube 248a, and an exhaust-side branch tube 248b. Additionally, an oxygen switching valve 249 is installed on the second trachea 245.

[0096] The first branch pipe 247a connects the other end of the first adsorption cylinder 234 to one end of the main pipe 246. The second branch pipe 247b connects the other end of the second adsorption cylinder 235 to one end of the main pipe 246. A check valve 261 is installed on each of the first branch pipe 247a and the second branch pipe 247b. Each check valve 261 allows airflow in the direction of the corresponding adsorption cylinders 234 and 235, while restricting reverse airflow.

[0097] As described above, a first branch pipe 247a and a second branch pipe 247b are connected to one end of the main pipe 246. The other end of the main pipe 246 is connected to an oxygen switching valve 249. An orifice plate 263 and a check valve 262 are sequentially arranged on the main pipe 246 from one end to the other. The check valve 262 allows airflow from one end of the main pipe 246 to the other and restricts reverse airflow.

[0098] One end of the supply-side branch pipe 248a is connected to the oxygen switching valve 249, and the other end is connected to one end of the gas supply pipe 275. The supply-side branch pipe 248a constitutes a supply passage for introducing oxygen-enriched gas into the interior of the receiving unit 61. One end of the discharge-side branch pipe 248b is connected to the oxygen switching valve 249, and the other end is connected to one end of the gas discharge pipe 276. The discharge-side branch pipe 248b constitutes a discharge passage for discharging oxygen-enriched gas toward the exterior of the unit housing 201.

[0099] The oxygen switching valve 249 is a three-way valve. As described above, a main pipe 246, a supply-side branch pipe 248a, and an outlet-side branch pipe 248b are connected to the oxygen switching valve 249. The oxygen switching valve 249 switches between a first state and a second state. The first state connects the main pipe 246 to the supply-side branch pipe 248a, restricting the flow into the outlet-side branch pipe 248b. The second state connects the main pipe 246 to the outlet-side branch pipe 248b, restricting the flow into the supply-side branch pipe 248a.

[0100] The oxygen switching valve 249 is a switching mechanism that switches the second gas pipe 245 between an inlet state and an outlet state. When the oxygen switching valve 249 is in the first state, the second gas pipe 245 is in the inlet state, and oxygen-enriched gas is introduced into the housing unit 61 through the supply side branch pipe 248a. When the oxygen switching valve 249 is in the second state, the second gas pipe 245 is in the outlet state, and oxygen-enriched gas is discharged to the outside of the unit housing 201 through the outlet side branch pipe 248b.

[0101] (3-2-10) Residual gas discharge pipe

[0102] The residual gas discharge pipe 250 is connected to the first branch pipe 247a and the second branch pipe 247b of the second gas pipe 245, respectively. One end of the residual gas discharge pipe 250 is connected to the first branch pipe 247a, and the other end is connected to the second branch pipe 247b. One end of the residual gas discharge pipe 250 is connected between the first adsorption cylinder 234 of the first branch pipe 247a and the check valve 261. The other end of the residual gas discharge pipe 250 is connected between the second adsorption cylinder 235 of the second branch pipe 247b and the check valve 261.

[0103] A residual gas discharge valve 251 is provided on the residual gas discharge pipe 250. The residual gas discharge valve 251 is an on / off valve composed of a solenoid valve. The residual gas discharge valve 251 opens when equalizing the pressure of the first adsorption cylinder 234 and the second adsorption cylinder 235. In addition, an orifice plate 252 is provided on each side of the residual gas discharge valve 251 in the residual gas discharge pipe 250.

[0104] (3-2-11) Exhaust connection pipe

[0105] An exhaust connection pipe 271 is connected to the first air pipe 244. One end of the exhaust connection pipe 271 is connected to the first air pipe 244, and the other end is connected to the second air pipe 245. One end of the exhaust connection pipe 271 is connected between the pressure reducing pump 231b and the check valve 264 on the pressure reducing side of the first air pipe 244. The other end of the exhaust connection pipe 271 is connected to one end of the gas discharge pipe 276.

[0106] A gas discharge valve 272 is installed on the exhaust connection pipe 271. The gas discharge valve 272 is an on / off valve composed of a solenoid valve. When the gas discharge valve 272 is opened, the nitrogen-rich gas flowing through the first gas pipe 244 is discharged to the outside of the unit housing 201. The gas discharge valve 272 is a flow regulating mechanism that regulates the flow rate of the nitrogen-rich gas flowing through the exhaust connection pipe 271. By adjusting the opening and closing times of the gas discharge valve 272, the flow rate of the nitrogen-rich gas discharged to the outside of the unit housing 201 through the exhaust connection pipe 271 changes.

[0107] (3-2-12) Gas supply pipe

[0108] Gas supply pipe 275 supplies regulated gas to storage unit 61. As described above, a supply-side branch pipe 248a of the first gas pipe 244 and the second gas pipe 245 is connected to one end of gas supply pipe 275. Gas supply pipe 275 extends outward toward the unit housing 201. The other end of gas supply pipe 275 is connected to storage unit 61 arranged within storage space 3. Thus, regulated gas flows into storage space 62. Gas supply pipe 275 is an example of gas supply path 275.

[0109] A gas supply valve 273 is provided on the gas supply pipe 275. The gas supply valve 273 is an on / off valve composed of a solenoid valve.

[0110] (3-2-13) Gas exhaust pipe

[0111] As described above, one end of the gas discharge pipe 276 is connected to the discharge side branch pipe 248b of the second gas pipe 245 and the exhaust connection pipe 271. The gas discharge pipe 276 extends toward the outside of the unit housing 201. The other end of the gas discharge pipe 276 is open toward the outside of the unit housing 201. The gas discharge pipe 276 is a conduit for discharging gas flowing in from one end toward the outside of the unit housing 201.

[0112] (3-2-14) Bypass pipe

[0113] A bypass connection pipe 255 is connected to the inlet pipe 242. The bypass connection pipe 255 is a pipe used to bypass the first adsorption cylinder 234 and the second adsorption cylinder 235 to supply outside air to the storage space 62 of the storage unit 61. One end of the bypass connection pipe 255 is connected between the branch of the inlet pipe 242 and the pressurized pump 231a. The other end of the bypass connection pipe 255 is connected downstream of the check valve 264 on the first air pipe 244.

[0114] A bypass on / off valve 256 is provided on the bypass connection pipe 255. The bypass on / off valve 256 is an on / off valve composed of a solenoid valve. When outside air ejected by the pressurized side pump 231a is supplied to the storage space 62 without changing its composition, the bypass on / off valve 256 is opened.

[0115] (3-2-15) Sensor

[0116] The air conditioning unit 50 includes an in-unit temperature sensor 55, an in-unit humidity sensor 56, and an oxygen sensor 57. The in-unit temperature sensor 55 detects the air temperature in the storage space 62. The in-unit humidity sensor 56 detects the humidity in the storage space 62. The oxygen sensor 57 detects the oxygen concentration in the storage space 62. The in-unit temperature sensor 55 is located approximately in the center of the storage space 62.

[0117] (3-2-16) Second Control Unit

[0118] The second control unit C2 includes a microprocessor, electrical circuits, and electronic circuits. The microprocessor includes a central processing unit (CPU), memory, communication interfaces, analog input / output, and contact input / output interfaces. The memory stores various programs executed by the CPU and the data used by those programs.

[0119] like Figure 5 As shown, the measured values ​​of the temperature sensor 55, humidity sensor 56, and oxygen sensor 57 within the unit are input to the second control unit C2. The second control unit C2 controls various components of the air conditioning unit 50. Specifically, the second control unit C2 controls the air pump 231, the first switching valve 232, the second switching valve 233, the oxygen switching valve 249, the ventilation exhaust valve 151, the residual gas discharge valve 251, the bypass on / off valve 256, the gas discharge valve 272, and the gas supply valve 273 of the air conditioning unit 50.

[0120] The measured values ​​detected by the temperature sensor 55, humidity sensor 56, and oxygen sensor 57 within the unit are input into the second control unit C2.

[0121] (4) Cooling mechanism

[0122] like Figure 1 As shown, the air conditioning unit 50 includes a cooling mechanism 70. The cooling mechanism 70 uses air from the storage space 3 to cool the regulated gas in the gas supply pipe 275. The cooling mechanism 70 is mounted on the gas supply pipe 275. In this embodiment, the cooling mechanism 70 is a first pipe section 70 that forms part of the gas supply pipe 275. The first pipe section 70 is made of a material with a higher thermal conductivity than the portion of the gas supply pipe 275 other than the first pipe section 70.

[0123] Specifically, the gas supply pipe 275 has a first pipe section 70 made of metal and a second pipe section 90 made of resin. By connecting the second pipe section 90 and the first pipe section 70 sequentially from the air conditioning unit 50 toward the storage unit 61, the regulated gas flowing into the gas supply pipe 275 flows sequentially through the second pipe section 90 and the first pipe section 70.

[0124] A portion or all of the first tube 70 is arranged within the storage space 3. Air within the storage space 3 exchanges heat with the conditioned gas within the first tube 70. In other words, the conditioned gas flowing within the first tube 70 is cooled by using the air in the storage space 3, which has already been cooled by the refrigeration device 10, to cool the first tube 70. The longer the first tube 70, the closer the conditioned gas flowing within it is to the air temperature of the storage space 3. Furthermore, because the thickness of the first tube 70 (i.e., the distance between the inner and outer surfaces of the first tube 70 in the radial direction) is thinner, the air temperature in the storage space 3 is more easily transferred to the first tube 70, thus the conditioned gas flowing within the first tube 70 is cooled rapidly.

[0125] (5) Gas-liquid separator

[0126] like Figure 1 and Figure 6As shown, the storage system 60 includes a gas-liquid separator 80. The gas-liquid separator 80 separates liquid flowing along with the conditioned gas flowing in the gas supply pipe 275. For example, water mixed in the conditioned gas due to condensation caused by air cooling flows towards the receiving unit 61 within the gas supply pipe 275. The gas-liquid separator 80 separates and discharges this water from the conditioned gas before it flows into the receiving unit 61.

[0127] Specifically, the gas-liquid separator 80 is positioned downstream of the regulated gas flow direction in the first section 70 of the gas supply pipe 275. Here, "downstream" means a position further downstream than the midpoint of the length between the upstream and downstream ends of the first section 70. In other words, the gas-liquid separator 80 is positioned in the first section 70 closer to the receiving unit 61 than the second section 90.

[0128] The gas-liquid separator 80 is formed as a relatively long cylindrical shape with a closed lower end. An inflow end 81 and an outflow end 82 are formed on the side of the gas-liquid separator 80. The inflow end 81 and the outflow end 82 are connected to a first pipe section 70. The inflow end 81 is positioned upstream of the regulated gas flow direction, further upstream than the outflow end 82. A drain pipe 83 is connected to the lower end of the gas-liquid separator 80. Water separated within the gas-liquid separator 80 flows into the drain pipe 83. The water flowing in the drain pipe 83 flows out to a reservoir (not shown).

[0129] (6) Operation of the air conditioning unit

[0130] In this embodiment, the air conditioning unit 50 performs both oxygen concentration reduction operation and oxygen supply operation. The oxygen concentration reduction operation is an operation that lowers the oxygen concentration of the air in the storage space 62. The oxygen supply operation is an operation that raises the oxygen concentration of the air in the storage space 62.

[0131] The air conditioning unit 50 separates outside air into nitrogen-rich gas (first gas) and oxygen-rich gas (second gas) by repeatedly alternating between performing a first action and a second action. The air conditioning unit 50 repeatedly alternating between the first action and the second action, and the duration of the first action and the second action is a predetermined switching time (e.g., 14 seconds). The second control unit C2 controls the first switching valve 232 and the second switching valve 233 to alternate between performing the first action and the second action.

[0132] (6-1) First action

[0133] like Figure 7 and Figure 9As shown, in the first operation, the first switching valve 232 is set to a first state, and the second switching valve 233 is set to a second state. Additionally, in the first operation, the residual gas discharge valve 251 and the bypass on / off valve 256 are kept closed. In the first operation, the air pump 231 operates, performing an adsorption operation targeting the first adsorption cylinder 234 and a desorption operation targeting the second adsorption cylinder 235.

[0134] The pressurized pump 231a draws in outside air (atmosphere) from the external air pipe 241 and pressurizes it, supplying the pressurized outside air to the first adsorption cylinder 234. In the first adsorption cylinder 234, nitrogen and water (water vapor) contained in the supplied outside air are adsorbed by the adsorbent. As a result, oxygen-enriched gas with a lower nitrogen concentration and a higher oxygen concentration than the outside air is generated in the first adsorption cylinder 234. The oxygen-enriched gas flows out from the first adsorption cylinder 234 to the first branch pipe 247a of the second air pipe 245.

[0135] On the other hand, the pressure-reducing pump 231b draws gas from the second adsorption cylinder 235. Within the second adsorption cylinder 235, the internal pressure decreases, and nitrogen and water desorb from the adsorbent. As a result, a nitrogen-rich gas with a high nitrogen concentration and low oxygen concentration compared to the outside air is generated in the second adsorption cylinder 235. The nitrogen-rich gas flows from the second adsorption cylinder 235 into the suction pipe 243 and is drawn into the pressure-reducing pump 231b. The pressure-reducing pump 231b pressurizes the drawn-in nitrogen-rich gas and ejects it towards the first gas pipe 244.

[0136] (6-2) Second action

[0137] like Figure 8 and Figure 10 As shown, in the second operation, the first switching valve 232 is set to the second state, and the second switching valve 233 is set to the first state. Additionally, in the second operation, the residual gas discharge valve 251 and the bypass on / off valve 256 are kept closed. Therefore, in the second operation, the air pump 231 operates, performing desorption on the first adsorption cylinder 234 and adsorption on the second adsorption cylinder 235.

[0138] The pressurized pump 231a draws in outside air (atmosphere) from the external air pipe 241 and pressurizes it, supplying the pressurized outside air to the second adsorption cylinder 235. In the second adsorption cylinder 235, the nitrogen and water (water vapor) contained in the supplied outside air are adsorbed by the adsorbent. As a result, oxygen-enriched gas with a lower nitrogen concentration and a higher oxygen concentration than the outside air is generated in the second adsorption cylinder 235. The oxygen-enriched gas flows out from the second adsorption cylinder 235 into the second branch pipe 247b of the second air pipe 245.

[0139] On the other hand, the pressure-reducing pump 231b draws gas from the first adsorption cylinder 234. Within the first adsorption cylinder 234, the internal pressure decreases, and nitrogen and water desorb from the adsorbent. As a result, a nitrogen-rich gas with a high nitrogen concentration and low oxygen concentration compared to the outside air is generated in the first adsorption cylinder 234. The nitrogen-rich gas flows from the first adsorption cylinder 234 into the suction pipe 243 and is drawn into the pressure-reducing pump 231b. The pressure-reducing pump 231b pressurizes the drawn-in nitrogen-rich gas and ejects it into the first gas pipe 244.

[0140] (6-3) Operation with reduced oxygen concentration

[0141] The oxygen concentration reduction operation is an operation that reduces the oxygen concentration of the air in the storage space 62 by supplying nitrogen-rich gas to the storage space 62.

[0142] like Figure 7 and Figure 8 As shown, during oxygen concentration reduction operation, gas supply valve 273 is kept open, and gas discharge valve 272 is kept closed. Additionally, during oxygen concentration reduction operation, oxygen switching valve 249 is set to a second state. As a result, main pipe 246 is connected to discharge side branch pipe 248b, and second gas pipe 245 is in the discharge state.

[0143] During oxygen concentration reduction operation, nitrogen-rich gas ejected from the pressure-reducing pump 231b toward the first gas pipe 244 flows into the interior of the receiving unit 61 through the gas supply pipe 275. On the other hand, oxygen-rich gas flowing into the second gas pipe 245 from the first adsorption cylinder 234 or the second adsorption cylinder 235 passes sequentially through the main pipe 246 and the discharge side branch pipe 248b, and then flows out toward the outside of the unit housing 201 through the gas discharge pipe 276.

[0144] During operation with reduced oxygen concentration, the ventilation exhaust valve 151 is kept open, and the air in the storage space 62 flows out to the outside of the storage unit 61 through the ventilation exhaust pipe 280. As a result, the air in the storage space 62 is gradually replaced by nitrogen-rich gas, and the oxygen concentration of the air in the storage space 62 gradually decreases.

[0145] (6-4) Oxygen supply operation

[0146] The oxygen supply operation is an operation that increases the oxygen concentration of the air in the storage space 62 by supplying oxygen-enriched gas to the storage space 62.

[0147] like Figure 9 and Figure 10As shown, during oxygen supply operation, gas supply valve 273 is kept open, and gas discharge valve 272 is kept open or opened / closed. Additionally, during oxygen supply operation, oxygen switching valve 249 is set to its first state. As a result, main pipe 246 is connected to supply-side branch pipe 248a, and second gas pipe 245 is in the inlet state.

[0148] During oxygen supply operation, a portion of the nitrogen-rich gas ejected from the pressure-reducing pump 231b into the first gas pipe 244 flows out to the outside of the first housing 2 via the exhaust connection pipe 271 and the gas discharge pipe 276, while the remaining portion flows into the interior of the receiving unit 61 via the gas supply pipe 275. Conversely, oxygen-rich gas flowing into the second gas pipe 245 from the first adsorption cylinder 234 or the second adsorption cylinder 235 flows into the gas supply pipe 275 via the main pipe 246 and the supply-side branch pipe 248a, and then into the interior of the receiving unit 61. Thus, during oxygen supply operation, a portion of the nitrogen-rich gas and all of the oxygen-rich gas are supplied to the receiving space 62.

[0149] During oxygen supply operation, the ventilation exhaust valve 151 is kept open, and the air in the storage space 62 flows out of the storage space 62 through the ventilation exhaust pipe 280. Therefore, the air in the storage space 62 is gradually replaced by oxygen-enriched gas, and the oxygen concentration of the air in the storage space 62 gradually increases.

[0150] (7) Characteristics

[0151] (7-1) Feature 1

[0152] The storage system 60 of this embodiment is installed in a storage room 1 that uses a refrigeration device 10 to cool the air in the storage space 3 within the main body 2 of the storage room. The storage system 60 includes a storage unit 61, an air conditioning device 50, a gas supply pipe 275, and a cooling mechanism 70. The storage unit 61 is arranged inside the storage space 3 to form a storage space 62 for storing stored items. The air conditioning device 50 adjusts the composition of the air supplied to the storage space 62. The gas supply pipe 275 supplies the storage space 62 with a first gas whose composition has been adjusted by the air conditioning device 50. The cooling mechanism 70 is provided on at least a portion of the gas supply pipe 275 to cool the adjusted gas (the first gas).

[0153] In this embodiment, regulated gas that has been cooled by the cooling mechanism 70 can be supplied to the storage space 62. Therefore, compared to the case where only the air in the storage space 62 is cooled by the air in the storage space 3 that has been cooled by the refrigeration device 10, the temperature of the air in the storage space 62 can be controlled to the required temperature.

[0154] (7-2) Feature 2

[0155] The cooling mechanism 70 of this embodiment uses air within the storage space 3 to cool the regulated gas (first gas) in the gas supply pipe 275. By transferring the heat from the air in the storage space 3, which has already been cooled by the cooling mechanism 70, to the first gas in the gas supply pipe 275, the first gas can be cooled. Therefore, the first gas can be cooled simply without the need for special devices in the cooling mechanism 70. Furthermore, the number of components and manufacturing cost of the cooling mechanism 70 can be reduced.

[0156] (7-3) Feature 3

[0157] The cooling mechanism 70 of this embodiment has a first tube section 70 that forms part of the gas supply pipe 275. The first tube section 70 is made of a material with a higher thermal conductivity than the portion of the gas supply pipe 275 other than the first tube section 70. Thus, the first gas is cooled by utilizing the already cooled air within the storage space 3 in the first tube section 70. The first gas can be cooled simply by utilizing a portion of the gas supply pipe 275.

[0158] (7-4) Feature 4

[0159] The cooling mechanism 70 of this embodiment has a first tube 70, which is made of metal and constitutes at least a portion of the gas supply pipe 275. As the tube is made of metal, since the outer and inner sides of the tube have relatively high thermal conductivity, the cooling of the first gas inside the first tube 70 can be promoted by using the already cooled air inside the chamber.

[0160] (7-5) Feature 5

[0161] The cooling mechanism 70 of this embodiment also includes a gas-liquid separator 80, which separates the first gas and liquid flowing in the gas supply pipe 275. The gas-liquid separator 80 is arranged downstream of the flow direction of the first gas in the cooling mechanism 70.

[0162] This prevents water generated in the gas supply pipe 275 due to the cooling of the first gas from flowing into the interior of the storage space 62. Consequently, it prevents the stored items in the storage space 62 from becoming wet, thus preventing a decrease in the quality of the stored items.

[0163] (7-6) Feature 6

[0164] The air conditioning unit 50 of this embodiment utilizes a gas molecule adsorption-desorption system using zeolite to adjust the first gas supplied to the receiving space 62. It is possible to supply nitrogen-rich gas and high-humidity air as the first gas to the receiving space 62 using the gas molecule adsorption-desorption system using zeolite.

[0165] (7-7) Feature 7

[0166] In this embodiment, the storage compartment body 2 is made of a material with higher thermal insulation properties than the storage unit 61. Because the storage compartment body 2 uses a material with higher thermal insulation properties, heat transfer between the internal and external air of the storage compartment body 2 is suppressed. Therefore, since the storage space 62 and the internal space 3 are separated only by a resin sheet, in addition to suppressing the temperature rise of the air inside the compartment that has already been cooled by the refrigeration device 10, the air temperature inside the storage space 62 can be reduced more quickly.

[0167] (7-8) Feature 8

[0168] The storage unit 61 of this embodiment has a transparent material that allows the interior of the storage space 62 to be visually assessed. Therefore, the storage unit 61 allows the state of the stored items within the storage space 62 to be visually assessed from the outside of the storage unit 61.

[0169] (8) Variations

[0170] The following describes a structure that differs from the in-cabin cooling system or storage system described in the above embodiments.

[0171] (8-1) Variation Example 1

[0172] like Figure 11 As shown, the storage system 60 of Modified Example 1 has multiple storage units 61 arranged in the storage space 3. The gas supply pipe 275 of the storage system 60 has a first flow path 275A and multiple second flow paths 275B. The gas supply pipe 275 is configured to branch off multiple second flow paths 275B from the first flow path 275A. Specifically, one end of the first flow path 275A is connected to the air conditioning unit 50. One end of the second flow path 275B is connected to the other end of the first flow path 275A, and the other end of the second flow path 275B is connected to the multiple storage units 61 respectively.

[0173] A first pipe section 70 is provided on the first flow path 275A. The first pipe section 70 is located at a downstream position of the first flow path 275A. The downstream position is a position further downstream than the central position between the upstream and downstream ends of the first flow path 275A. The first pipe section 70 may also be provided on the entire first flow path 275A arranged in the storage space 3.

[0174] Thus, since the storage system 60 of Modified Example 1 has multiple storage units 61, each storage unit 61 can be opened and closed individually. Therefore, for example, when retrieving a specific item from the storage compartment 1, only the storage unit 61 containing that target item needs to be opened, while the other storage units 61 remain closed. In this way, even if one storage unit 61 is opened or closed, changes in the air composition within the storage space 62 of the other storage units 61 can be suppressed, thereby preventing a decrease in the freshness and quality of the stored items in the other storage units 61.

[0175] Therefore, for example, multiple types of stored items can be stored in one storage room 1, eliminating the need to use a separate storage room 1 for each type of stored item. As a result, if there is spare space in the storage room 1 containing the stored items, other types of stored items can be stored in that space, thus making efficient use of the space in the storage room 1.

[0176] (8-2) Variation Example 2

[0177] like Figure 12 As shown, the cooling system 100 of Modified Example 2 has multiple storage systems 60 arranged in the storage space 3. The storage system 60 of Modified Example 2 has an air conditioning unit 50 and a storage unit 61. In other words, in the storage space 3, a storage unit 61 and an air conditioning unit 50 are arranged in pairs.

[0178] Thus, since the cooling system 100 in Modified Example 2 includes multiple storage systems 60, the air composition can be adjusted to be different for each storage space 62. Therefore, various types of stored goods with different storage conditions can be stored in a single storage unit 1. Specifically, since an air conditioning unit 50 is connected to each storage unit 61, by controlling multiple air conditioning units 50 individually, even when there are various types of stored goods with different optimal air compositions for storage, the air in each storage space 62 can be adjusted to a composition suitable for each type of stored goods.

[0179] (9) Other implementation methods

[0180] The above-described embodiments and their variations can also adopt the following structures.

[0181] The cooling mechanism 70 can also be provided on the entire gas supply pipe 275. Specifically, the entire gas supply pipe 275 can also be composed of the first pipe section 70.

[0182] The first tube 70 can be made of metals such as copper, aluminum, or iron. Alternatively, the first tube 70 can be made of a material with relatively high thermal conductivity, or it can be made of glass. The second tube 90 can be made of resin such as polyurethane resin. Furthermore, the second tube 90 can be made of a material with lower thermal conductivity than the first tube 70, and is not limited to being made of resin.

[0183] The gas-liquid separator 80 can also be positioned downstream of the cooling mechanism 70 in the direction of the first gas flow. In other words, the gas-liquid separator 80 can also be positioned between the downstream end of the first pipe section 70 in the gas supply pipe 275 and the receiving unit 61.

[0184] The air conditioning unit 50 can use any gas molecule adsorption-desorption system based on zeolite, or it can use pressure swing adsorption (PSA). It should be noted that the air conditioning unit 50 can also use a gas molecule adsorption-desorption system based on metal-organic frameworks (MOFs).

[0185] The cooling mechanism 70 is only required to cool the first gas in the gas supply pipe 275, and is not limited to a mechanism that uses air in the storage space 3 for cooling. For example, the cooling mechanism 70 may also have a specified heat medium such as refrigerant, water, or brine. The first gas in the gas supply pipe 275 is cooled by exchanging heat with the already cooled heat medium.

[0186] The internal structure of the storage unit 61 can be visually inspected. The storage unit 61 can be made of, for example, a transparent acrylic sheet.

[0187] In Modification 1, an air conditioning unit 50 may be directly connected to each of the multiple storage units 61 without going through the second flow path 275B. In this case, the first flow path 275A of the gas supply pipe 275 is connected to the air conditioning unit 50, and the number of first flow paths 275A of the gas supply pipe 275 is equal to the number of storage units 61. The regulated gas is supplied directly from the air conditioning unit 50 to each storage unit 61.

[0188] In Modification 2, multiple storage units 61 can also be connected to each storage system 60.

[0189] In the embodiment and variation 1, the main unit 200 of the air conditioning unit 50 may also be installed inside the storage compartment 1. Furthermore, in variation 2, the main unit 200 of the air conditioning unit 50 may also be installed outside the storage compartment 1.

[0190] The embodiments and modifications have been described above. However, it should be understood that various changes can be made to their form and specific details without departing from the spirit and scope of the claims. Furthermore, the above embodiments and modifications can be appropriately combined and substituted as long as the function of the object of this disclosure is not affected. The terms "first" and "second" used above are used to distinguish statements containing these terms and are not intended to limit the number or order of the statements.

[0191] -Industry Applicability-

[0192] In summary, this disclosure is useful for storage systems and in-warehouse cooling systems.

[0193] - Symbol Explanation -

[0194] 1. Storage warehouse

[0195] 2. Main body of the storage facility (first shell)

[0196] 3. Internal Space (First Space)

[0197] 10 Refrigeration unit

[0198] 50 Air conditioning unit

[0199] 60 Storage System

[0200] 61 Storage Unit (Second Housing)

[0201] 62 Storage space (second space)

[0202] 70 Cooling mechanism, first pipe section

[0203] 80 Gas-Liquid Separator

[0204] 100 In-warehouse cooling system

[0205] 275 Gas supply pipe (gas supply line)

[0206] 275A first flow path

[0207] 275B Second Flow Path

Claims

1. A storage system disposed in a storage chamber (1) in which the air in a first space (3) within a first housing (2) is cooled by a refrigeration device (10), characterized in that: The storage system includes a second housing (61), an air conditioning unit (50), a gas supply line (275), and a cooling mechanism (70). The second housing (61) is arranged inside the first space (3) to form a second space (62) for storing the contents. The air conditioning unit (50) adjusts the composition of the air supplied to the second space (62). The gas supply path (275) supplies the first gas, whose composition has been adjusted by the air conditioning device (50), to the second space (62). The cooling mechanism (70) is disposed on at least a portion of the gas supply path (275) to cool the first gas.

2. The storage system according to claim 1, characterized in that: The cooling mechanism (70) uses the air in the first space (3) to cool the first gas in the gas supply path (275).

3. The storage system according to claim 1 or 2, characterized in that: The cooling mechanism (70) has a first pipe section (70) that forms part of the gas supply passage (275). The first tube (70) is made of a material with a higher thermal conductivity than the material used to make the gas supply path (275) other than the first tube (70).

4. The storage system according to any one of claims 1 to 3, characterized in that: The cooling mechanism (70) has a first pipe section (70) made of metal or glass, which constitutes at least a part of the gas supply path (275).

5. The storage system according to any one of claims 1 to 4, characterized in that: The storage system further includes a gas-liquid separator (80) that separates the first gas and liquid flowing in the gas supply path (275). The gas-liquid separator (80) is located downstream of the flow direction of the first gas in the cooling mechanism (70), or located further downstream of the flow direction of the first gas than the cooling mechanism (70).

6. The storage system according to any one of claims 1 to 5, characterized in that: The air conditioning unit (50) uses a gas molecule adsorption-desorption system employing zeolite or metal-organic frameworks to adjust the first gas supplied to the second space.

7. The storage system according to any one of claims 1 to 6, characterized in that: The first housing (2) is made of a material with higher thermal insulation than the second housing (61).

8. The storage system according to any one of claims 1 to 7, characterized in that: The second housing (61) has a transparent material that allows for visual confirmation of the interior of the second space (62).

9. The storage system according to any one of claims 1 to 8, characterized in that: Multiple second housings (61) are arranged in the first space (3). The gas supply path (275) has a first flow path (275A) and multiple second flow paths (275B). One end of the first flow path (275A) is connected to the air conditioning unit (50). One end of each of the multiple second flow paths (275B) is connected to the other end of the first flow path (275A), and the other end of each of the multiple second flow paths (275B) is connected to the second housing (61) respectively. The cooling mechanism (70) is disposed on the first flow path (275A).

10. A cooling system for a warehouse, characterized in that: The cooling system inside the warehouse includes the storage system as described in claim 1 or 2, a first housing (2), and a refrigeration device (10). The first housing (2) forms the first space (3) where the second housing (61) is arranged. The refrigeration device (10) cools the air in the first space (3).

11. The in-cooling system according to claim 10, characterized in that: Multiple storage systems are provided in the first space (3).

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