JP2015049018A - Method for using freezing warehouse, and cold storage sheet for suspension, to be used for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for using a freezing warehouse, capable of keeping air in a freezing chamber at a freezing temperature even when a refrigerator of the freezing warehouse temporarily stops.SOLUTION: A freezing warehouse 1 including a floor face 2, a peripheral wall 4 formed by cylindrically arranging a plurality of lateral walls 3 raised from the floor face 2, a ceiling 5 provided above and opposite to the floor face 2, and a refrigerator 7 for cooling air in a freezing chamber 6 surrounded by the floor face 2, the peripheral wall 4 and the ceiling 5 to a freezing temperature is used for suspending along the lateral walls 3 in the freezing chamber 6, a plurality of cold storage sheets 8 storing a cold storage agent 41 storing cold heat by coagulating from liquid to solid when cooling, and storing frozen food in the freezing chamber 6.

Description

  The present invention relates to a method for using a refrigerated warehouse mainly installed in a backyard or the like of a supermarket, and a hanging cold storage sheet used in the method.

  In general, in a backyard of a supermarket, a factory of a food processing industry, etc., a frozen warehouse is used to store fresh foods or frozen foods in a frozen state (for example, Patent Document 1). In the freezer warehouse, the air in the freezer compartment is cooled by a refrigerator, and the frozen food is stored in the freezer compartment. The temperature in the freezer compartment is about minus 15 ° C. to minus 30 ° C.

Japanese Patent Laid-Open No. 9-178323

  Usually, a refrigerator in a refrigeration warehouse is used in continuous operation in order to keep the air in the freezer compartment at a freezing temperature. On the other hand, the inventors of the present application have installed a large-capacity regenerator in the freezer compartment of the freezer warehouse so that the air in the freezer compartment can be kept at the freezing temperature even if the refrigerator is temporarily stopped. We focused on the possibility of being able to hold it.

  If a large-capacity regenerator can be installed in the freezer compartment and the air in the freezer compartment can be kept at the freezing temperature, for example, even if the freezer is stopped due to a power failure or failure, It becomes possible to prevent the situation that the food in the room is thawed. Also, for example, by performing an operation of temporarily stopping the refrigerator at a fixed time once or multiple times a day, and maintaining the refrigeration temperature in the freezer compartment by the cold heat stored in the cold storage during that time It is also possible to reduce the power consumption of the refrigerator.

  However, in a freezer warehouse such as a supermarket, when a large-capacity regenerator is to be installed in the freezer compartment, a storage space for the frozen food can be obtained by placing the regenerator alongside the frozen food on the shelf surface of the product shelf on which the frozen food is placed. Will be significantly smaller. In addition, if a dedicated shelf for placing the regenerator is installed in the freezer compartment, the shelf becomes an obstacle, and the workability of carrying in and carrying out frozen food is reduced.

  The problem to be solved by the present invention is to provide a method for using a refrigeration warehouse that can keep the air in the refrigeration room at the refrigeration temperature even if the refrigerator in the refrigeration warehouse is temporarily stopped.

  In order to solve the above-described problem, in the present invention, a floor surface, a peripheral wall formed by arranging a plurality of side walls rising from the floor surface in a cylindrical shape, and a ceiling provided facing the floor surface above And a freezer having a refrigerator that cools the air in the freezer compartment surrounded by the floor, the peripheral wall, and the ceiling to a freezing temperature, and solidifies from liquid to solid when cooled in the freezer compartment A method for using a freezing warehouse that hangs a plurality of cold storage sheets containing a cold storage agent that stores cold heat along the side wall and stores the frozen food in the freezer compartment is provided.

  In this way, since the plurality of cold storage sheets suspended along the side wall of the freezer compartment stores cold heat by contact with the air in the freezer compartment, even if the refrigerator is temporarily stopped, the cold storage sheet The air in the freezer compartment can be kept at the freezing temperature by the cold energy stored in the room. As a result, for example, even when the refrigerator is stopped due to a power failure or failure, it is possible to prevent the food in the freezer compartment from being thawed until the refrigerator is restored. In addition, for example, by performing an operation of temporarily stopping the refrigerator at a fixed time once or multiple times a day, and maintaining the freezing temperature in the freezer compartment by the cold heat stored in the cold storage sheet during that time It is also possible to reduce the power consumption of the refrigerator.

  Further, since the cold storage sheet is arranged so as to be suspended along the side wall of the freezer compartment, the storage space of the freezer compartment is not disturbed even in a freezer warehouse such as a supermarket, without hindering the shelf surface space of the shelf on which frozen food is placed. Can be secured. In addition, when the frozen food is carried into or out of the freezer compartment, the cold storage sheet is unlikely to become an obstacle, and workability for carrying in and carrying out the frozen food can be ensured.

  By the way, when it is going to install the above-mentioned cold storage sheet in an existing refrigeration warehouse as a retrofit, a method of attaching a hanging tool to the side wall of the freezer using screws or bolts and suspending the cold storage sheet on the hanging tool is conceivable. However, in this method, since a screw or bolt hole is formed in the side wall of the freezer compartment, there is a risk that cold air in the freezer compartment will leak. Therefore, it is preferable that the cold storage sheet is suspended from a frame that is fixed by stretching vertically between the ceiling and the floor of the freezer compartment. Thereby, it becomes possible to install a cold storage sheet | seat, without making the hole of a screw or a volt | bolt in the side wall of a freezer compartment.

  The cold storage sheet is preferably detachably suspended. In this way, when an abnormality occurs in the refrigeration facility outside the refrigeration warehouse, the cold storage sheet suspended in the refrigeration warehouse can be removed, and the cold storage sheet can be diverted to the cold storage of the refrigeration facility where the abnormality has occurred. It becomes possible. For example, when a supermarket store flatbed freezer showcase (generally a frozen food display case with a height of less than 1 meter open), remove the cold storage sheet suspended in the freezer warehouse and store the cold storage By placing the sheet on the frozen food in the failed showcase, the frozen food in the showcase can be kept at the freezing temperature.

  The cold storage sheet is formed into a sheet shape in which a plurality of hanging holes connected to a hanging tool are provided at intervals on the left and right sides, and a sheet that hangs downward from the upper end, and is cooled from a liquid when cooled. It is possible to employ one having a sheet main body portion that is divided into a plurality of compartments that are divided into a plurality of compartments in which a cold storage agent that stores cold energy is solidified by being solidified.

  When this cool storage sheet is adopted, the cool storage agent is divided into a plurality of sections divided into upper and lower parts and stored in the sheet main body, so that when the cool storage sheet is suspended, the liquid cool storage agent that has not yet stored cold energy is Therefore, it is possible to prevent the cold storage sheet from being collected by its own weight. Therefore, in a state where the cold storage sheet is suspended, the liquid cold storage agent can be dispersed and held on the entire surface of the cold storage sheet, and a large amount of cold storage agent can be accommodated in one cold storage sheet. is there.

  Further, in the present invention, as a cold storage sheet suitable for direct use in carrying out the above-described method for using a freezer warehouse, an upper end portion provided with a plurality of hanging holes connected to a hanging tool at left and right intervals; And a sheet body portion that is formed in a sheet shape that hangs downward from its upper end portion, and that is divided into a plurality of compartments divided into upper and lower compartments for storing cold energy by solidifying from liquid to solid when cooled. To provide a cold storage sheet for hanging.

  In the method of using the freezer warehouse according to the present invention, the plurality of cold storage sheets suspended along the plurality of side walls of the freezer store cold energy by contact with the air in the freezer, so that the refrigerator temporarily Even if it stops, the air in the freezer compartment can be kept at the freezing temperature by the cold stored in the cold storage sheet.

The top view which shows the freezer warehouse used by embodiment of this invention Sectional view along the line II-II in FIG. Enlarged view of the frame and cold storage sheet shown in FIG. The perspective view which shows the state which removed the cool storage sheet from the frame shown in FIG. (A) is a disassembled perspective view which shows the connection part of the upper frame body and lower frame body which are shown in FIG. 4, (b) is sectional drawing which shows the connection state of the upper frame body and lower frame body which are shown in FIG. Partially cutaway front view of the cold storage sheet shown in FIG. 4 as viewed from the front FIG. 6 is an enlarged sectional view taken along line VII-VII. FIG. 1 shows the time change of the temperature of the air in the freezer compartment when an experiment is performed in which the refrigerator shown in FIG. Figure The figure which shows the state before putting a cold storage sheet on the frozen food of the flat stand freezing showcase of the supermarket store The figure which shows the state after covering the frozen food on the frozen food of the flat stand freezing showcase shown in FIG.

  1 and 2 show a refrigerated warehouse 1 used in the embodiment of the present invention. The frozen warehouse 1 is installed in a back yard of a supermarket, and is a warehouse that temporarily stores frozen foods before being displayed at a supermarket storefront.

  The freezer warehouse 1 includes a floor surface 2, a peripheral wall 4 formed by arranging a plurality of side walls 3 rising from the floor surface 2 in a cylindrical shape, a ceiling 5 provided above the floor surface 2, a floor, A refrigerator 7 that cools the air in the freezer compartment 6 surrounded by the surface 2, the peripheral wall 4, and the ceiling 5 to a freezing temperature is provided. A plurality of cold storage sheets 8 are suspended along the side wall 3 in the freezer compartment 6.

  The floor surface 2 of the freezer compartment 6 is formed by covering the heat insulating layer with a concrete layer. The side wall 3 is formed of a heat insulating panel having a metal interior plate, a metal exterior plate, and a foamed resin layer sandwiched between the interior plate and the exterior plate. The side wall 3 is provided with an inlet / outlet 9 for carrying in / out frozen food and a heat insulating door 10 for opening / closing the inlet / outlet 9. The ceiling 5 is also formed of a heat insulating panel similar to the side wall 3. A shelf 11 on which frozen food is placed is provided in the freezer compartment 6.

  The refrigerator 7 is configured by connecting an indoor unit 14 incorporating an expansion valve 12 and an evaporator 13 and an outdoor unit incorporating a compressor and an aggregator (not shown) by piping. The compressor compresses the refrigerant to increase the temperature of the refrigerant, the aggregator performs heat exchange between the refrigerant whose temperature has increased by the compressor and the outside, and the expansion valve 12 decompresses the refrigerant condensed by the aggregator. Thus, the temperature of the refrigerant is lowered, and the evaporator 13 performs heat exchange between the refrigerant whose temperature has been lowered by the expansion valve 12 and the air in the freezer compartment 6. By the heat exchange of the evaporator 13, the temperature in the freezer compartment 6 is maintained at the freezing temperature (from minus 15 ° C. to minus 30 ° C.).

  The refrigerator 7 is provided with a defrost heater 15. The defrosting heater 15 is a device that heats the evaporator 13 in order to melt and remove the frost formed by the water vapor in the air adhering to the surface of the evaporator 13 that has a low temperature of minus several tens of degrees Celsius. The heating operation of the defrost heater 15 is performed once a day or periodically a plurality of times.

  As shown in FIGS. 3 and 4, the cold storage sheet 8 is suspended from a frame body 20 that is fixed by stretching vertically between the ceiling 5 and the floor surface 2. In this embodiment, the two cold storage sheets 8 arranged vertically are suspended from the frame body 20, but one cold storage sheet having a length corresponding to two sheets of the cold storage sheet 8 shown in the figure is used as the frame body 20. It is also possible to suspend from.

  The frame 20 is formed so as to be vertically split between the ceiling 5 and the floor surface 2. Specifically, the frame body 20 includes an upper frame body 20A on the upper side from an intermediate position between the ceiling 5 and the floor surface 2, a lower frame body 20B on the lower side from an intermediate position between the ceiling 5 and the floor surface 2, and an upper frame body. It is formed by assembling a connecting portion 20C for connecting 20A and the lower frame body 20B in a severable manner. As described above, by allowing the frame body 20 to be divided vertically between the ceiling 5 and the floor surface 2, the work of carrying the frame body 20 into the freezer compartment 6 is facilitated. And when it is going to install the frame 20 by retrofitting in the existing frozen warehouse 1, it is possible to install the frame 20 with the frozen food stored in the freezer compartment 6. .

  The upper frame body 20 </ b> A includes a pair of left and right vertical frames 21 and a horizontal frame 22 that connects upper portions of the vertical frames 21. On the lower side of the horizontal frame 22, a suspension bar 23 is provided that extends horizontally between the opposing surfaces of the left and right vertical frames 21. The vertical frame 21 is a hollow rectangular tube extending in the vertical direction. The horizontal frame 22 is a hollow rectangular tube extending in the left-right direction. The suspension bar 23 is a hollow cylindrical body that extends in the left-right direction. Both ends of the suspension bar 23 are connected to the vertical frame 21. The suspension bar 23 is provided with a plurality of suspension tools 24 that are detachably suspended from the cold storage sheet 8 with a space left and right. The hanging tool 24 is, for example, an S-shaped hook that is hooked on the hanging bar 23. The vertical frame 21, the horizontal frame 22, and the suspension bar 23 are formed of a metal such as an aluminum alloy in order to ensure durability.

  The lower frame body 20 </ b> B includes a pair of left and right vertical frames 25, an upper horizontal frame 26 that connects upper portions of the vertical frames 25, and a lower horizontal frame 27 that connects lower portions of the vertical frames 25. On the lower side of the upper horizontal frame 26, there is provided a suspension bar 28 extending horizontally between the opposing surfaces of the left and right vertical frames 25. Similar to the upper frame 20A, the vertical frame 25 is a hollow rectangular tube extending in the vertical direction, and the horizontal frames 26 and 27 are hollow rectangular tubes extending in the left-right direction. The suspension bar 28 is a hollow cylindrical body extending in the left-right direction. Both ends of the suspension bar 28 are connected to the vertical frame 25. The suspending bar 28 is provided with a plurality of suspending tools 29 for detachably suspending the cold storage sheet 8 from left and right. The hanging tool 29 is, for example, an S-shaped hook that is hooked on the hanging bar 28. The vertical frame 25, the horizontal frames 26 and 27, and the suspension bar 28 are made of a metal such as an aluminum alloy in order to ensure durability.

  The upper end of the vertical frame 21 of the upper frame body 20 </ b> A is pressed against the ceiling 5 of the freezer compartment 6. An end cap 30 made of rubber or resin is attached to the upper end of the vertical frame 21 so as not to damage the ceiling 5 of the freezer compartment 6. The lower end of the vertical frame 25 of the lower frame body 20 </ b> B is pressed against the floor surface 2 of the freezer compartment 6. An end cap 31 made of rubber or resin is attached to the lower end of the vertical frame 25 so as not to damage the floor surface 2 of the freezer compartment 6. The lower end of the vertical frame 21 of the upper frame body 20A and the upper end of the vertical frame 25 of the lower frame body 20B are connected via a connecting portion 20C. 20 C of connection parts are comprised so that expansion / contraction adjustment is possible so that the length from the upper end of the vertical frame 21 of 20 A of upper frames to the lower end of the vertical frame 25 of the lower frame 20B may change.

  As shown in FIGS. 5A and 5B, the connecting portion 20C is attached to the upper end of the vertical frame 25 of the lower frame 20B and the connection cap 32 that is attached to the lower end of the vertical frame 21 of the upper frame 20A. The connecting cap 33 is connected to the connecting caps 32 and 33.

  The upper connecting cap 32 has a cylindrical portion 35 that fits into the lower end opening of the vertical frame 21 of the upper frame body 20 </ b> A, and a flange portion 36 that is formed at the lower end of the cylindrical portion 35. The flange portion 36 comes in contact with the lower end of the vertical frame 21 of the upper frame body 20A and restricts the downward movement of the vertical frame 21 of the upper frame body 20A from the lower end opening of the vertical frame 21 of the upper frame body 20A. Also have a large cross section. The coupling cap 32 is formed with a screw hole 37 penetrating vertically, and a cutting bolt 34 is screwed into the screw hole 37. The flange portion 36 is formed with a horizontal screw hole 38 formed so as to extend from the outer periphery of the flange portion 36 to the screw hole 37, and by inserting a set screw 39 into the screw hole 38, The connection cap 32 can be prevented from rotating.

  The lower connecting cap 33 has the same configuration as that of the upper connecting cap 32, and therefore, the same reference numerals are given and description thereof is omitted. By making the lower connection cap 33 the same shape and the same size as the upper connection cap 32, the costs of the connection caps 32 and 33 can be reduced.

  As shown in FIG. 5 (b), the connecting portion 20 </ b> C is in a state where the connecting caps 32, 33 screw-engaged with the upper and lower portions of the dimensioning bolt 34 are fitted to the upper and lower vertical frames 21, 25. The exposed length of the dimensioning bolt 34 from the upper and lower connecting caps 32 and 33 is changed by loosening only one of the upper and lower set screws 39 and further rotating the upper and lower connecting caps 32 and 33 relative to each other (that is, It is possible to adjust the expansion and contraction of the connecting portion 20C.

  As shown in FIG. 6, the cold storage sheet 8 has a sheet shape in which a plurality of hanging holes 40 connected to the hanging tools 24 and 29 are provided on the left and right sides and a plurality of hanging holes 40 hang down from the upper end 8A. Sheet body portion 8B. In the sheet main body portion 8B, a cold storage agent 41 that stores cold heat by solidifying from a liquid to a solid when cooled is accommodated in a plurality of sections partitioned vertically.

  The cold storage sheet 8 has a length in the vertical direction of 1000 to 1400 mm and a square having a width in the horizontal direction of 700 to 1100 mm, and 3 to 6 liters of the cold storage agent 41 is accommodated in one cold storage sheet 8. Yes.

  As the regenerator 41, a material having a melting temperature of minus 15 ° C. or lower (eg, minus 18 ° C.) when melted from a solid state is used. By using the cold storage agent 41 having a low melting temperature in this way, when the refrigerator 7 of the freezer 6 is temporarily stopped, the freezing chamber 6 is effectively used by utilizing the latent heat of fusion of the cold storage agent 41. It becomes possible to hold the refrigeration temperature below -15 ° C.

  As shown in FIG. 7, the sheet main body portion 8B has two sheet materials 42 that are liquid-tight so that the cool storage agent 41 in a liquid state does not permeate, with the cool storage agent 41 interposed therebetween, Two sheet materials 42 are formed by adhering (for example, heat welding) to each other around the cool storage agent 41. Here, it is preferable that the sheet material 42 is made of a resin having flexibility. If it does in this way, even if it is in the state where the cool storage sheet 8 was cooled and the cool storage agent 41 became solid, it becomes possible to fold the cool storage sheet 8 along the adhesion part of sheet materials 42 which partition the cool storage agent 41 up and down, The cool storage sheet 8 can be easily carried.

  The cool storage agent 41 is accommodated in the cool storage sheet 8 in a state of being impregnated in a sheet-like foamed resin material 43 in which open cells are uniformly formed. Thus, by impregnating the cold storage material 41 in the foamed resin material 43, when the cold storage sheet 8 is suspended, the liquid cold storage agent 41 that has not yet stored cold heat is effectively prevented from gathering downward due to its own weight. It is possible to do.

  As shown in FIG. 6, the sheet-like foamed resin material 43 is formed with a through hole 44 that penetrates the foamed resin material 43 on the front and back sides, and the two cold storage sheets 8 are bonded inside the through hole 44. Yes. Thereby, since the foamed resin material 43 is supported by the adhesion part of the cool storage sheet 8 inside the through-hole 44, when the cool storage sheet 8 is suspended, the cool storage agent 41 impregnated in the foam resin material 43 is caused by its own weight. It is possible to prevent the foamed resin material 43 from being deformed inside the cold storage sheet 8. Here, if the through-hole 44 is disposed above the center part in the vertical direction of the foamed resin material 43, the foamed resin material 43 can be particularly effectively prevented from being deformed.

  As shown in FIG. 7, the upper end portion 8A of the cold storage sheet 8 is formed by sandwiching a plate-like core material 45 extending in the left-right direction from the front and rear with two sheet materials 42 continuous from the sheet main body portion 8B. The suspension hole 40 (see FIG. 6) is formed through the core member 45 and the sheet material 42 in the front-rear direction, and the hole edge of the suspension hole 40 is reinforced with a metal ring.

  As described above, in the freezer compartment 6, a plurality of cold storage sheets 8 are provided in a state of being suspended from the frame body 20 along the side wall 3. Here, the number of the cold storage sheets 8 is preferably set to a number that covers 40 percent or more (more preferably 50 percent or more) of the surface area of the entire side wall 3 of the freezer compartment 6. If it does in this way, the cold insulation effect of the freezer compartment 6 by the cool storage sheet 8 mentioned later can be exhibited effectively.

  As described above, when a plurality of cold storage sheets 8 are suspended along the side wall 3 of the freezer compartment 6 and the freezer warehouse 1 is used in this state, the cold storage sheet 8 stores cold heat by contact with the air in the freezer compartment 6. Therefore, even if the refrigerator 7 is temporarily stopped, the air in the freezer compartment 6 can be kept at the freezing temperature by the cold heat stored in the cold storage sheet 8. As a result, for example, even when the refrigerator 7 is stopped due to a power failure or failure, it is possible to prevent the frozen food stored in the freezer compartment 6 from being thawed until the refrigerator 7 is restored. Is possible. Moreover, the temperature rise of the freezer compartment 6 when the defrosting heater 15 of the refrigerator 7 is in a heating operation can also be suppressed.

  In addition, the refrigerator 7 is temporarily stopped once or a plurality of times a day at a predetermined time, and during that time, the operation of maintaining the freezing temperature in the freezer compartment 6 by the cold heat stored in the cold storage sheet 8 is performed. As a result, the power consumption of the refrigerator 7 can be reduced.

  FIG. 8 shows the result of an experiment in which the refrigerator 7 is actually stopped several times a day. In this experiment, the refrigerators 7 were set to approximately four times a day immediately before the operation time of the defrosting heater 15 of the refrigerator 7 (around 7:00, around 13:00, around 19:00, around 1:00), respectively. It was stopped for 120 minutes, about 90 minutes, about 90 minutes, about 90 minutes, and during that time, the freezer compartment 6 was kept cold by the cold heat stored in the cold storage sheet 8, and the time change of the temperature of the air in the freezer compartment 6 was measured. Here, the timing at which the refrigerator 7 is temporarily stopped is set immediately before the start of the operation of the defrosting heater 15 of the refrigerator 7 at the time immediately before the heating operation of the defrosting heater 15 is performed. This is because the cold storage capacity of the cold storage sheet 8 is the highest. According to the result of this experiment, it can be confirmed that the temperature in the freezer compartment 6 is maintained at minus 15 ° C. or lower during the temporary stop of the refrigerator 7 (except during the operation of the defrosting heater 15). That is, even if the refrigerator 7 is stopped for about 6.5 hours per day, the temperature in the freezer compartment 6 can be continuously maintained at minus 15 ° C. or lower. As a result, the power consumption of the refrigerator 7 can be maintained. Can be confirmed to be significantly reduced (27 percent in this experiment).

  Moreover, according to the usage method of the freezing warehouse 1 mentioned above, since the cool storage sheet 8 is arrange | positioned along the side wall 3 of the freezer compartment 6, it does not disturb the shelf surface space of the shelf 11 which mounts frozen food. The storage space of the freezer compartment 6 can be secured. Further, when the frozen food is carried into or out of the freezer compartment 6, the cold storage sheet 8 is unlikely to become an obstacle, and workability for carrying in and carrying out the frozen food can be ensured. In addition, since the cold storage sheet 8 is not fixed and suspended so as to be able to swing, even when the frozen food is carried into the freezer compartment 6 and the cart or the like on which the frozen food is loaded collides with the cold storage sheet 8, The impact at the time of collision is absorbed and it is excellent in safety.

  Moreover, according to the usage method of the freezing warehouse 1 mentioned above, since the cool storage sheet | seat 8 divided into the several division which the cool storage agent 41 partitioned up and down and accommodated in the sheet | seat main-body part 8B is employ | adopted, the cool storage sheet 8 is used. When suspended, it is possible to prevent the liquid cold storage agent 41 that has not yet stored cold energy from collecting at the lower end of the cold storage sheet 8 by its own weight. Therefore, in the state where the cold storage sheet 8 is suspended, the liquid cold storage agent 41 can be dispersed and held on the entire surface of the cold storage sheet 8, and a large capacity of the cold storage agent 8 is accommodated in one cold storage sheet 8. It is possible.

  By the way, when it is going to install the above-mentioned cold storage sheet 8 in an existing freezer warehouse as a retrofit, a hanging tool (for example, a wall hanging hook) is attached to the side wall 3 of the freezer compartment 6 using a screw or a bolt, and the cold storage is stored in the hanging tool. Although the method of suspending the sheet | seat 8 is considered, in this method, since the hole of a screw | thread or a volt | bolt is made in the side wall 3 of the freezer compartment 6, there exists a possibility that the leakage of the cold air in the freezer compartment 6 may arise. On the other hand, if it is hung from the frame body 20 that is stretched vertically and fixed between the ceiling 5 and the floor surface 2 of the freezer compartment 6 as in the above embodiment, screws or bolts are attached to the side wall 3 of the freezer compartment 6. It is possible to install the cold storage sheet 8 without making a hole.

  Moreover, according to the usage method of the frozen warehouse 1 mentioned above, since the cold storage sheet 8 is made detachable, when an abnormality occurs in the refrigeration equipment outside the freezer warehouse 1, the cold storage sheet suspended from the freezer warehouse 1 is used. 8 is removed, and the cold storage sheet 8 can be diverted to the cold storage of the refrigeration equipment in which an abnormality has occurred.

  For example, as shown in FIG. 9 and FIG. 10, when a freezer display case 50 (generally a display case of frozen food with the upper part of the case having a height of 1 meter or less opened) at a supermarket store fails, the freezer warehouse 1 It is possible to keep the frozen food in the showcase 50 at the freezing temperature by removing the cold storage sheet 8 suspended on the cover and placing the cold storage sheet 8 on the frozen food in the failed showcase 50. .

DESCRIPTION OF SYMBOLS 1 Refrigeration warehouse 2 Floor surface 3 Side wall 4 Perimeter wall 5 Ceiling 6 Freezer room 7 Refrigerator 8 Cold storage sheet 8A Upper end part 8B Sheet main body part 9 Entrance / exit 10 Thermal insulation door 11 Shelf 12 Expansion valve 13 Evaporator 14 Indoor unit 15 Defrost heater 20 Frame 20A Upper frame body 20B Lower frame body 20C Connection part 21 Vertical frame 22 Horizontal frame 23 Hanging bar 24 Hanging tool 25 Vertical frame 26, 27 Horizontal frame 28 Hanging bar 29 Hanging tool 30, 31 End cap 32, 33 Connection cap 34 Dimensions Bolt 35 Cylindrical part 36 Flange part 37, 38 Screw hole 39 Set screw 40 Suspension hole 41 Cold storage agent 42 Sheet material 43 Foamed resin material 44 Through hole 45 Core material 50 Flat stand refrigeration showcase

Claims (5)

A floor surface (2) and a peripheral wall (4) formed by arranging a plurality of side walls (3) rising from the floor surface (2) in a cylindrical shape, and provided above the floor surface (2). And a refrigerator (7) for cooling the air in the freezer compartment (6) surrounded by the floor (2), the peripheral wall (4) and the ceiling (5) to a freezing temperature. Use the freezer warehouse (1)
A plurality of cold storage sheets (8) containing a cold storage agent (41) that stores cold energy by solidifying from a liquid to a solid when cooled are suspended in the freezer compartment (6) along the side wall (3). ,
The use method of the freezer warehouse which stores the frozen food in the freezer compartment (6).   The use of the freezer warehouse according to claim 1, wherein the cold storage sheet (8) is suspended from a frame (20) fixed by stretching vertically between the ceiling (5) and the floor (2). Method.   The usage method of the freezing warehouse of Claim 1 or 2 with which the said cool storage sheet (8) is suspended so that attachment or detachment is possible. The cold storage sheet (8)
An upper end (8A) provided with a plurality of suspension holes (40) connected to the suspension (24) at left and right intervals;
A sheet that is formed in a sheet shape that hangs downward from its upper end (8A), and that is divided into a plurality of compartments divided into upper and lower compartments for storing cold energy by solidifying from liquid to solid when cooled. A main body (8B);
The use method of the freezer warehouse in any one of Claim 1 to 3 which has these. An upper end (8A) provided with a plurality of suspension holes (40) connected to the suspension (24) at left and right intervals;
A sheet that is formed in a sheet shape that hangs downward from its upper end (8A), and that is divided into a plurality of compartments divided into upper and lower compartments for storing cold energy by solidifying from liquid to solid when cooled. A main body (8B);
Cold storage sheet for hanging.

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