WO2008053853A1

WO2008053853A1 - Heat storage panel body, composite panel body, and cold insulating vehicle and container using the same

Info

Publication number: WO2008053853A1
Application number: PCT/JP2007/071058
Authority: WO
Inventors: Shin Kiyokawa
Original assignee: Shin Kiyokawa
Priority date: 2006-10-28
Filing date: 2007-10-29
Publication date: 2008-05-08
Also published as: JPWO2008053853A1

Abstract

This invention provides a heat storage panel body, which is used, for example, in walls, floors, and ceiling materials in buildings, or in walls within refrigerators or freezers to significantly improve the heat storage effect, a composite panel body comprising a plurality of the heat storage panel bodies, and a cold insulating vehicle and a container using the composite panel body. A partition material of pure aluminum or an aluminum alloy, which can form a plurality of cells, is interposed between a bottom plate and a lid plate of pure aluminum or an aluminum alloy. The bottom plate, the partition material, and the lid plate are bonded to each other through an adhesive, and a heat storage material regulated to a weakly acidic state is filled into the cells defined by the partition material to constitute the heat storage panel body.

Description

Specification

Thermal storage panel, composite panel, cold storage vehicle and container using this panel

[0001] The present invention is used for building walls, floors, ceiling materials, etc., or used for refrigeration, freezer storage walls, etc., and has a high heat storage effect, and uses a plurality of heat storage panel bodies. The present invention relates to a composite panel body, a cold insulation vehicle using the same, and a container.

Background art

[0002] In general, a solar heat storage structure called passive solar in which a heat storage panel is arranged on a wall, floor, ceiling material, or the like of a building is known.

The above heat storage panel body is filled with a heat storage material between a pair of panel plates. When the outside air is high, the heat is stored and not conducted indoors. When the outside air is low, the heat of the inside air is stored. As a result, heat is not conducted outside the room, thereby ensuring comfort in the indoor living space. The flooring is used in combination with an electric-heated floor heater, and the floor heater is stored to save power and reduce power consumption while realizing high-comfort floor heating.

[0003] On the other hand, there are known freezing vehicles, cold storage vehicles, and the like that carry various frozen foods (see, for example, Patent Document 1). Processed foods such as ice cream, croquettes, sweet potatoes, and gyoza, many things such as edamame and seafood are sold as frozen foods. When these foods are transported from manufacturing plants to storage warehouses and sales outlets Therefore, it is necessary to have a refrigerator or a vehicle that can maintain a cold temperature suitable for the food. For example, the cold temperature of ice cream is 25 to 20 ° C, and the cold temperature of frozen fruits, frozen foods, frozen seafood and frozen meat is 19 to 15 ° C. In many cases, the temperature of the cold is controlled at around 5 ° C or less. As a cold storage vehicle used for transporting the frozen food or the like, generally, a cold storage room having a sandwich-structured wall in which a heat insulating material such as rigid urethane foam is injected between two aluminum plates or stainless plates is used. An evaporator is placed above the front of the cool box (the rear of the driver's seat), the refrigerant compressed and cooled by the refrigerator is supplied to the evaporator, and cold air is jetted along the ceiling surface of the cool box. Flow backwards, turn downwards at the rear, turn over and flow forward Thus, a method is adopted in which the air is sucked into the suction port of the evaporator and circulated in the cool box as cold air again.

Patent Document 1: JP-A-2005-231537

Disclosure of the invention

Problems to be solved by the invention

[0004] However, in the above configuration, the appearance of a heat storage panel body that can realize higher heat storage efficiency by exhibiting high thermal conductivity and thermal responsiveness is desired.

[0005] On the other hand, in the conventional cool box, in order to keep the temperature in the cool chamber uniform, it is necessary that the above-described circulation path of the cool air is properly formed.

However, frozen food boxes (frozen cargo) are loaded into the cold storage and are taken out sequentially. The size and shape of this frozen cargo vary, and the height and size of the frozen cargo varies depending on the state of loading and unloading. Therefore, the initially planned cold air circulation path is obstructed by the state of the cargo, and some places cannot be cooled sufficiently, resulting in a temperature difference. When actually using a refrigerated vehicle or refrigerated vehicle, operate the engine by operating the power, front force engine, and pre-cool the inside of the refrigerator to a predetermined temperature, for example, about 5 10 ° C. Frozen foods are often loaded on top. In this case, the inside of the refrigerator must be continuously cooled by operating the refrigerator during transportation.

[0006] A cold insulated vehicle is heated by sunlight or an atmosphere during transportation, and the internal temperature of the cold box is often increased by receiving heat exceeding the cooling capacity of the evaporator. In order to solve this problem, the one described in Patent Document 1 proposes a cold insulated vehicle in which water is sprayed on the outer surface of the cool box to form a water film on the outer surface of the cool box.

[0007] In particular, when carrying cargo with a low cooling temperature, such as ice cream, a temperature considerably lower than that of frozen food is required. Therefore, since the temperature holding capacity is insufficient just by keeping the temperature inside the cool box in the cooled state by air cooling, thick iron plates are arranged on the front and both sides of the inner wall of the cool box, as described above. Prior to the transportation of cargo, a method for storing the cold energy by cooling the iron plate to 5 ° C or less has been studied!

However, when a cold storage vehicle is modified to this structure, the vehicle weight increases by the amount of iron plate added in the cold storage, and the total weight of the iron plate is 700 to 1000 kg (23 ton cars). There is a problem that the effective volume is reduced by the added amount and the support that fixes it, the reduction rate is 20% of the total, and the load capacity is reduced.

[0008] Therefore, the object of the present invention is to solve the above-mentioned problems of the prior art, used for building walls, floors, ceiling materials, etc., or used for refrigeration, freezer storage walls, etc. The object of the present invention is to provide a heat storage panel body that greatly improves the heat storage effect, a composite panel body using a plurality of the heat storage panel bodies, a cold storage vehicle and a container using the same.

Means for solving the problem

[0009] The present invention relates to two metal thin plates and a metal thin plate that is interposed between these metal thin plates so as to be thermally conductive and forms a divided space between the two metal thin plates. And a partition member made of metal, and is filled with a heat storage material by filling the partition member! /.

In the present invention, since the heat storage material is filled by filling the partition made of a thin metal plate, the amount of the heat storage material handled as one lump is reduced, and the melting due to heat absorption and the solidification due to heat radiation are not overcooled. Phase change. Therefore, each heat storage material is independent from each other regardless of the phase change state of the heat storage material filled in the adjacent cell, and the merino is not subcooled without overcooling the melting and solidification cycle, which is the behavior of heat storage and heat dissipation. Therefore, sufficient heat energy corresponding to the amount of the heat storage material can be stored as latent heat.

Further, the partition body may be a honeycomb body made of a thin metal plate, both opening surfaces of the honeycomb body may be closed with the thin metal plate, and the small space of the honeycomb body may be filled with a heat storage material.

Further, the partition body is a mold plate made of a thin metal plate in which convex portions and concave portions are alternately and continuously formed at a predetermined interval, and the cut body is provided by disposing metal thin plates on both sides of the thin plate, respectively. And the metal thin plate are thermally connected, and the space between the partition and the metal thin plate is filled with a heat storage material.

[0010] Further, the present invention provides a partition made of pure aluminum or aluminum alloy that can form a plurality of cells between a bottom plate and a cover plate made of pure aluminum or aluminum alloy, and the bottom plate and the partition body The lid plate is bonded via an adhesive, and the cells of the partition are filled with a heat storage material adjusted to weak acidity. In the present invention, the bottom plate made of an aluminum plate and the lid plate are welded to the opening surface of the cell of the partition, and the heat storage material is sorted and filled for each cell, so the amount of the heat storage material handled as one lump. , And melting due to endotherm and solidification due to heat dissipation undergo phase change without supercooling. Therefore, each heat storage material is independent of each other regardless of the phase change state of the heat storage material filled in the adjacent cell, and the merino is not subcooled without overcooling the cycle of melting and solidification, which is the behavior of heat storage and heat dissipation. The heat energy can be stored as latent heat by repeating the process accurately and accurately.

In the present invention, since the heat storage material is adjusted to be weakly acidic, the aluminum cut body, the bottom plate, and the cover plate are not eroded, and the durability thereof is significantly improved.

[0011] In this case, an alumite film may be formed on the outer surface of the bottom plate and / or the outer surface of the lid plate. In this configuration, an alumite film is formed, so heat dissipation

The endothermic effect is enhanced. Further, the heat storage material may be adjusted to have a pH value of weak acidity of about 6.9. Furthermore, the partition may be formed of a honeycomb plate having a plurality of cells in a honeycomb shape. The honeycomb plate may be formed of a thin plate having a thickness of approximately 0.1 mm, and the bottom plate and the lid plate may be formed of a thin plate having a thickness of approximately 0.1 mm. The heat storage material has a characteristic of storing a quantity of latent heat by changing the phase to a molten state or a solid state by transferring heat.

[0012] Further, a composite panel body may be configured by stacking a plurality of the heat storage panel bodies described above.

Furthermore, it is possible to provide a cold-reserving vehicle having a cold-reservoir in which the heat storage panel body is disposed, and it is also possible to provide a container in which the heat storage panel body is disposed.

The invention's effect

[0013] The present invention is configured by forming a plurality of cells between the two metal plates by providing a partition between the two metal plates, and filling the cells with a heat storage material. The amount of heat storage material handled as one lump is reduced, and melting due to heat absorption and solidification due to heat dissipation undergo phase change without supercooling, so each heat storage material changes in phase of the heat storage material filled in the adjacent cell. Independent of each other, the melting and solidification cycle, which is the behavior of heat storage and release of heat energy, is repeated accurately with merino and recirculation without overcooling. Heat energy can be stored as latent heat. Also, the bottom plate and lid plate made of aluminum plate are welded to the opening surface of the cell of the partition body, and the heat storage material is sorted and filled for each cell, so the amount of heat storage material handled as one lump is small Therefore, melting due to heat absorption and solidification due to heat dissipation change in phase without supercooling, so that each heat storage material becomes independent from each other regardless of the phase change state of the heat storage material filled in the adjacent cell. In order to repeat the melting and solidification cycle, which is the behavior of heat storage and heat dissipation, accurately with merino and recycle without overcooling, sufficient heat energy corresponding to the amount of heat storage material is stored as latent heat.

In addition, in the present invention, since the heat storage material is adjusted to be weakly acidic, the aluminum cut body, the bottom plate, and the cover plate are not eroded, and durability is improved.

According to the present invention, since a large contact area with the heat storage material is ensured, a highly efficient active solar with very good thermal response can be realized.

Brief Description of Drawings

FIG. 1 is a diagram illustrating an example of a building that employs an active solar system.

FIG. 2 is an exploded perspective view of a heat storage panel body.

FIG. 3 is a perspective view showing a part of a partition body.

FIG. 4 is a cross-sectional view of a heat storage panel body.

FIG. 5 is a perspective view showing an example of a cold insulation vehicle having a heat storage panel body.

FIG. 6 is a perspective view showing another example of the cold insulated vehicle.

FIG. 7A is a perspective view of a corrugated plate used as a partition, and FIG. 7B is a perspective view of a corrugated plate used as a partition.

FIG. 8A is a cross-sectional view of a heat storage panel body using the partition plate of FIG. 7A, and FIG. 8B is a cross-sectional view of a heat storage panel body using the partition plate of FIG. 7B.

FIG. 9 is a cross-sectional view showing another embodiment of a heat storage panel body.

FIG. 10 is a perspective view of the same.

FIG. 11 is a perspective view showing still another embodiment of a heat storage panel body.

[FIG. 12] (A) to (C) are diagrams showing an example of a reinforcing material.

Explanation of symbols

[0015] 1 Cold storage vehicle 2 Cold storage

3 Evaporator

5 Cover plate

6 Bottom plate

7 Heat storage material (cold storage material)

37 buildings

H Honeycomb plate (partition plate)

P Thermal storage panel

C cell (small room)

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

Figure 1 is a cross-sectional view of a building using a passive solar system. In this specification, the term aluminum includes aluminum alloy in addition to pure aluminum. This building 37 is a conventional wooden building, with a base 37A placed on the base 37A, a base 37C placed on the base 37B, a joist 37D over the base 37C, Put flooring 37E on top to make up the floor!

38 is a wall structure and 39 is a ceiling material.

In particular, the wall surface of the building 37 is affected by the temperature of the outside air, and the heat storage panel P is placed on the wall structure 38, and the inner wall plate and wall finishing material 40 are affixed to the interior side surface. . Between the floor joists 37D, the heat storage panel P is arranged with the upper surface in contact with the rear surface of the flooring 37E, and the heater 43 as an electric floor heater is laid under the heater 43, and the lower part of the heater 43 Is covered with insulation 41. In addition, a heat storage panel is arranged on the top of the ceiling material 39, and a heat insulating material 42 is laid on the top.

[0017] As shown in Figs. 2 and 3, the heat storage panel P is an honeycomb plate (partition body) H made of anorenomium, which is an assembly of hexagonal cells C, and each of the panels laminated on the front and back surfaces. It consists of a cover plate 5 and a bottom plate 6 having a thickness of 0 · 1 mm. The outer shape of the heat storage panel P is for building materials, for example, width 300 x length 1800 x thickness 12 (or thickness 9) mm, width 900 x length 1800 x thickness 12 or thickness 9 ) mm, or 300 x 12 for both width and length, 9) mm However, various dimensions and shapes including thickness are possible.

The honeycomb plate H has an aluminum plate thickness of about 0.1 mm, and is manufactured by wire bonding and stretching. The cell C has a dimension of 25 mm, and the honeycomb plate H has a thickness of 25 mm. Manufactured in 20mm!

In this embodiment, an alumite film is formed on the outer surfaces of the bottom plate 6 and the cover plate 5 by anodizing. It has been found that when an alumite film is formed on the heat-dissipating side surface or the heat-absorbing side surface, the heat-dissipating and endothermic effects are enhanced.

[0018] In the manufacture of the heat storage panel P, first, the surface of the bottom plate (thin metal plate) 6 having a thickness of about 0.1 mm is coated with a thermal adhesive, and one opening surface of the honeycomb plate H is formed on the surface of the bottom plate 6. It forms a kind of container in which cells (small chambers) C that hold heat storage material (cold storage material) 7 are neatly arranged by heat welding without gaps. Next, the cell C was filled with a salt solution adjusted to weak acidity with a sodium chloride concentration of 80 g / l as the heat storage material 7, and then the other opening surface of the honeycomb plate H was coated with a thermal adhesive. Cover with a cover plate (thin metal plate) 5 of approximately 0.1 mm, and heat-weld the cover 5 without any gaps. As the adhesive, an epoxy resin having water resistance, a silicon-based adhesive, or the like is used.

Finally, as a finish, the four surfaces of the heat storage panel P, with the end faces of the honeycomb plate H exposed, are bonded together with an aluminum tape (not shown). The manufactured honeycomb plate H after this manufacturing process has a strength equivalent to that of general building materials having high strength, such as fireproof boards and concrete panels, and has sufficient building material strength.

Note that the cover plate 5 and the bottom plate 6 are 0.05 mm to 1.0 mm in thickness.

This thickness may be changed as appropriate depending on the strength required for the heat storage panel P, but the heat storage panel P has a metal contact bonding to the cover plate 5, honeycomb plate H and bottom plate 6, and the tensile strength of the cover plate 5 and bottom plate 6 The structure is extremely strong because it has a structure that produces rigidity. For example, even when a cover plate 5 and a bottom plate 6 of 0.1 mm are used, it has sufficient strength as a building material.

[0019] In this configuration, the honeycomb plate H is formed! /, And the opening surface of the cell C is closed by the bottom plate 6 and the cover plate 5 made of an aluminum plate, and the heat storage material 7 is sorted for each cell C. As shown in FIG. 4, the space between each cell C is finely divided. Constructs honeycomb plate H A cell S that may contain a small amount of air in the cell C, which is used as a space to accommodate the expansion when the heat storage material 7 becomes ice.

[0020] In the present embodiment, a heat storage material adjusted to a very weak acidity with a pH value of about 6.9 is used for the heat storage material 7. If the pH value is too large or too small, the aluminum plate force, the cell C of the honeycomb plate H, the bottom plate 6 and the cover plate 5 are eroded, and the durability of the heat storage panel P is deteriorated. Therefore, the pH value is adjusted to 6.5 to 6.9, preferably around 6.9. This heat storage material 7 is a force S in which various heat storage materials are used, such as water, aqueous sodium chloride solution (melting point 11 ° C), aqueous sodium chloride solution (melting point 21 ° C), sodium sulfate 10 water Salt, erythritol (melting point, the same below: 119 ° C), sodium acetate (58 ° C), polyethylene glycol (40-50 ° C), sodium thiosulfate (48 ° C), sodium sulfate (32.4 ° C ), Aqueous solutions of calcium chloride (29.7 ° C), etc. are used. When these aqueous solutions are used as the heat storage material 7, the acid concentration is slightly increased or adjusted to be weakly acidic by adding an acid (for example, hydrochloric acid). In addition, oils and fats such as paraffin can be used as the heat storage material. For example, when paraffin is used, the melting point thereof can be appropriately adjusted in the range of 20 ° C. to 80 ° C. As a typical example, the melting point when norafine C20 is used is about 45 ° C. These weakly acidic heat storage materials or oils and fats can be melted at a predetermined temperature and stored at that temperature.

[0021] Generally, the heat storage material 7 is solid at a certain temperature and melts by endotherm (phase change), and stores a heat quantity corresponding to the heat of fusion. And the temperature drops due to heat dissipation and changes to the original solid. The present inventor has long experience of developing a heat insulation device using a heat storage function, and if the heat storage material 7 is divided into small portions and the amount handled as one lump is reduced, melting due to heat absorption and solidification due to heat dissipation are excessive. We obtained the knowledge that merino and ri are often added without cooling and phase change often occurs. If the phase changes without supercooling, the heat storage material 7 releases and absorbs heat at the desired temperature, so extremely high thermal conductivity and thermal responsiveness are exhibited, and the heat storage efficiency is greatly improved. Sufficient heat energy corresponding to the amount can be stored as latent heat. This effect was the same for the weakly acidic heat storage material7.

In this embodiment, since the heat storage material 7 is adjusted to be weakly acidic, the honeycomb plate H, the bottom plate 6 and the cover plate 5 made of aluminum are not eroded and the durability thereof is improved. In addition, since the alumite coating is formed on the outer surfaces of the bottom plate 6 and the cover plate 5 by anodizing, the heat dissipation and heat absorption effects are enhanced.

Furthermore, since the bottom plate 6 and the lid plate 5 made of an aluminum plate are thermally welded to the opening surface of the cell C of the honeycomb plate H, and the heat storage material 7 is sorted and filled for each cell C, the electrode is formed as one lump. The amount of heat storage material 7 decreases, and melting due to heat absorption and solidification due to heat radiation change without overcooling. Therefore, each heat storage material 7 supercools the melting / solidification cycle, which is the behavior of heat storage and release of heat, independently of each other regardless of the phase change state of the heat storage material 7 filled in the adjacent cell C. Without repeating the process, it is possible to store the heat energy enough as the heat storage material 7 as latent heat.

[0023] In this active solar system, the internal structure of the wall structure 38, ceiling material 39, and floor material 37E is provided with heat storage properties, so that heat from the outdoors can be reduced to the amount of heat storage material 7 a day in summer. The heat storage panel P having the above-described configuration that can store sufficient heat energy corresponding to the heat as a latent heat absorbs heat and stores the heat, thereby suppressing an increase in indoor temperature. Further, in the winter season, heat is stored in the heat storage panel P having the above-described structure by the amount of heat in the room, so that the amount of heat in the room can be prevented from being transferred from the outer wall surface and ceiling of the building 37 to the outside air. In this case, the heater 43 is laid on the floor, and the heat of the heater 43 is absorbed by the heat storage panel body P to store heat, so that the floor heater with high comfort can be reduced while reducing the power consumption of the floor heater. Heating can be realized.

In addition, since the heat storage material 7 in the heat storage panel P is filled separately for each cell C, the heat storage panel P is placed upright on the wall structure 38 as shown in FIG. Sliding power S That is, even if the heat storage material 7 becomes liquid due to the phase change, the heat storage material 7 does not flow across the plurality of cells C. For this reason, regardless of whether the heat storage material 7 is liquid or solid, the configuration in which the heat storage material 7 is evenly distributed throughout the heat storage panel P is maintained. Therefore, even if the heat storage panel P is arranged upright or laid down, it is possible to exhibit high thermal conductivity and thermal responsiveness without causing the arrangement state of the heat storage material 7 to collapse.

[0024] Next, an embodiment of the cold insulation vehicle will be described.

In FIG. 5, reference numeral 1 denotes a cold-reserved vehicle, and the cold-reserved vehicle 1 is provided with a cold-reservoir 2 in the loading platform. An evaporator 3 is provided on the front ceiling of the inside of the cool box 2, and the evaporator 3 is connected to a refrigerator (not shown). Cold air 4 from the evaporator 3 is ejected into the cool box 2 and kept cool. It is configured to circulate in the storage 2 and keep the inside of the cold storage 2 at a predetermined low temperature.

The heat storage panel P is fixed to the both side walls and the front wall of the cool box 2 along the wall, and the heat storage panel P is filled with a weak acid heat storage material using 8% salt water. The inside of the cabinet can be kept cool to a temperature of 5 ° C or less.

[0025] The heat storage panel P is substantially the same as the configuration of FIG. 2, and the above-described heat storage material can be used as appropriate for the cold storage material 7 filled in the cell C. The weakly acidic heat storage material 7 (cold storage material) is appropriately selected and used in accordance with a cold storage temperature suitable for food to be kept cold. For example, as a suitable temperature for transporting food, frozen seafood, etc. Frozen foods are frozen (1-25 ° C 15 ° C) Fresh meat, seafood, fresh juice, side dishes, etc. are chilled (0 5 ° C), and milk products such as milk and butter are chilled to cooling ( 0 ° C ~; 15 ° C), fresh fruits · Vegetables are known to be in the cooling zone (5 20 ° C). The heat storage material 7 has a latent heat of fusion of 150 to 180 kj / kg for sodium chloride aqueous solution, potassium hydrogen carbonate aqueous solution, potassium chloride aqueous solution and the like depending on the concentration of additives added to water, and water is 335 kj / kg. Therefore, water has a latent heat of fusion about twice that of sodium chloride solution.

In addition, when water itself is used as the heat storage material 7, it is easy and inexpensive to obtain, so it is particularly suitable for keeping foods in the chilled zone at 05 ° C. In addition, even if the thermal storage panel P is damaged, it will be safe because only water leaks out. When tap water is used as a heat storage material, it is preferable to use sterilized chlorine (activated carbon filter, etc.) from the viewpoint of the corrosiveness of chloride ions to metals!

[0026] Some heat storage materials (cold storage materials) corrode the partition and the aluminum plate of the bottom plate 6 and the cover plate 5 even if they are weakly acidic. Is used. In the present embodiment, an aluminum foil (a two-cam plate H) having an alumite film formed by anodizing treatment, a bottom plate 6 made of an aluminum plate, and a cover plate 5 are used. Depending on the application of the cold storage panel P, for example, a honeycomb plate H using an aluminum foil having a thickness of 50 to 100 microns can be used.

[0027] As another embodiment, a rail or a guide groove (not shown) is provided at an appropriate location such as the center of the floor of the cool box 2, and a heat storage panel different from the original heat storage panel P is provided along the rail. Body (shown in broken lines) Pa can be placed freely and freely! /. In this configuration, frozen cargo enters both sides of the thermal storage panel Pa, and is the frozen cargo a thermal storage panel? Because it is sandwiched between Pa, the entire cargo can be maintained at a predetermined temperature.

As described above, the heat storage (cold storage) panel body P may be moved manually, so that it is formed in a size that allows for easy handling. In this form, it is formed in the size of width 500mm, height 500mm, thickness 20mm. This size should be determined appropriately according to the size of the truck and the load of frozen cargo! /.

[0028] FIG. 6 shows another embodiment.

In the present embodiment, a cold storage shelf 22 is provided inside the cold storage chamber 21, and a heat storage panel (cool storage panel) Pb is supported on the shelf 22 in two stages. The internal structure of the heat storage panel Pb may be the same structure as the heat storage panel of the above embodiment. A heat storage panel Pa (see Fig. 7) may be arranged inside the cool box 21. By using the heat storage panel Pa and the shelf 22 together, it is possible to optimize the arrangement and cooling of frozen cargo.

In the cold insulation vehicle 1 shown in FIG. 5, the thermal storage panel (cold thermal insulation panel) P may be arranged on the force ceiling surface provided on the front part and both side walls of the cold storage 2. Since the coldest air 4 that erupted from the evaporator 3 passes through the ceiling surface, the cold storage capacity can be significantly improved by arranging the heat storage panel P in this area.

[0029] The present invention is not limited to the cool box 2 installed in the loading platform of the cool vehicle 1, but can also be applied to containers used for freight transportation in automobiles, ships, railways, and the like. In this container, for example, as in the cool box 2 shown in FIG. 5, the heat storage panel P is fixed to the both side walls and the front wall along the walls. Alternatively, the heat storage panel P may be arranged on a shelf arranged inside the cargo storage space like the cold storage 21 shown in FIG. Of course, the heat storage panel P can be arranged on the ceiling surface.

In the heat storage panel P installed in this container, the heat storage material 7 suitable for the storage temperature of the cargo is emphasized. For example, in a cold storage container, the heat storage panel P is filled with a weakly acidic heat storage material using 8% salt water, and the power S is used to keep the interior cool to a temperature of minus 5 ° C or less.

[0030] As another embodiment, when manufacturing cold storage panels PI and P2 that require strength, as shown in Fig. 7, it is preferable to use a plate with a roll die. As roll mold plate Can be a corrugated partition 10 having a continuous rectangular shape as shown in FIG. 7A, or a corrugated plate partition 11 as shown in FIG. 7B.

The bottom plate 12 and the cover plate 13 are welded to both surfaces of each partition 10, 10 to form a structure shown in FIGS. 8 (A) and 8 (B). Then, after closing one mouth of a large number of cells arranged in a row with a metal plate (not shown), the inside of the partitions 10 and 11 is filled with the heat storage material 7 using a nozzle. The other opening of 11 is closed with another metal plate (not shown) to form the heat storage panel bodies PI and P2.

Since the heat storage panel bodies PI and P2 use corrugated molded plates as the partitions 10 and 11, only one row of cells can be formed. When multiple rows are required, heat storage panel bodies PI and P2 may be used side by side as necessary.

In addition, when manufacturing the cold storage panels PI and P2, the force S to become a cold storage panel completed on both sides of strength 4 by closing the openings of the partition bodies 10 and 11, and a reinforcing plate were attached. It is good also as a form. That is, although not shown in the drawings, as a member for closing the cell openings at both ends of the heat storage panel body when the heat storage panel body is configured, for example, a frame-shaped reinforcing plate having a U-shaped cross section is used for heat bonding or the like. If it is closed using the means, a frame-shaped heat storage panel with a reinforcing plate around it can be completed. If an aluminum plate is used for the corrugated plate or the metal plate on the front and back, it is desirable to apply anodizing by anodizing and anticorrosion processing such as paint.

[0031] FIGS. 9 to 10 show another embodiment of the heat storage panel.

FIG. 9 is a cross-sectional view of the heat storage panel P3, and FIG. 10 is a perspective view of the heat storage panel P3 with the cover plate omitted. This heat storage panel P3 has a honeycomb plate 32 interposed between the bottom plate 30 and the lid plate 31 as a partition plate. The heat storage panel P3 is provided on each inner surface of the both plates 30, 31 and the non-nickel plate 32 force both plates 30, 31. Thermal adhesion is performed through the coated thermal adhesive resin layer 33.

In this embodiment, the metal fibers 34 with a small diameter are further packed in the cells C of the honeycomb plate 32, and the heat storage material 7 is filled in the cells C. The metal fiber 34 is for improving heat transfer from the heat receiving surface (heat absorption surface) such as a heat source to the heat storage material 7 and heat transfer from the heat storage material 7 to the heat dissipation surface. As this metal fiber 34, first, it is possible to use aluminum fiber with good thermal conductivity, and the surface of this metal fiber is deteriorated by the heat storage material 7. Shina! /, Surface treatment (eg anodized) may be used! /, Etc. As the metal fiber 34 having good thermal conductivity, a copper metal fiber can be used. It is also possible to use a metal fiber made of stainless steel with a force S that is slightly inferior in thermal conductivity.

[0033] When the strength of the honeycomb plate 32 is relatively weak, it is desirable to interpose a reinforcing member 35 together with the honeycomb plate 32 between both plates 30, 31 as shown in FIG. As the reinforcing member 35, a member having an eye-beam cross section as shown in the figure, a member having an L-shaped cross section (not shown), or a member having a cross-shaped cross section as shown in FIG. 12 (FIG. 12A), Y It can also be used as a member with a mold section (Fig. 12B), a so-called fishbone section (Fig. 12C)!

[0034] A thermal storage panel is also possible.

In other words, it is possible to use the heat storage panel body B that uses the warmth that the heat storage panel body uses. As the heat storage material of this heat storage panel B, for example, it is possible to use an aqueous solution such as sodium sulfate decahydrate (32.4 ° C), calcium chloride hexahydrate (29.7 ° C). it can. It is also possible to use an aqueous solution of sodium acetate trihydrate (58 ° C) or a heat storage material that changes phase at a relatively high temperature, such as erythritol (119 ° C)!

[0035] The heat storage panel body according to the above configuration can be used singly according to the heat storage amount of the heat storage panel body, or a plurality of heat storage panel bodies can be stacked and used. In the case of using multiple layers, it is desirable to fill the panels with heat storage materials having different melting points and arrange them in the order of high temperature, medium temperature, and low temperature and use them as a composite panel body. If so, a large amount of heat can be efficiently stored. In this case, if heat is released from the high-temperature heat storage panel body side of the composite panel body, a large amount of heat can be efficiently stored as a heat storage panel body using heat. In addition, if the heat is released from the low-temperature heat storage panel body side of the composite panel body, heat can be stored efficiently as a heat storage panel body using cold energy. As described above, a plurality of heat storage panel bodies having different melting points of the heat storage material are laminated to form a composite panel body, and the heat storage panel body P is laminated in an order corresponding to the purpose of use, thereby effectively storing heat. it can.

[0036] Since the heat storage panel body of this configuration is a thin plate and is not shown in the figure, for example, it can be placed on the back side of the ceiling material of an automobile, and according to this, the ceiling of the automobile can be arranged. The temperature difference between the board and the car can be made large. The heat storage panel used in this example has a pressure resistance Therefore, it is possible to use one sheet that is formed thinner than the above embodiment or a combination of two sheets as necessary.

When using multiple heat storage panels, it is better to use a high melting point on the heat absorbing surface side and a material filled with heat storage material. By adopting this configuration, heat storage material with multiple melting points Can be made to act as one body thermally.

[0037] As is clear from the above description, the first embodiment provides a heat storage panel.

This heat storage panel body is formed by providing a partition between two metal plates so that a plurality of small rooms (cells) are dispersed between the two metal plates, and a heat storage material is filled in the small rooms. is doing. Therefore, the heat storage material does not exist as a single unit, but is divided and partitioned into small pieces by the partition made of metal plate, and is in contact with the partition while being cut in the thickness direction of the panel body. In other words, the metal thin plate is in contact with the entire thickness of the heat storage material, and this metal thin plate constitutes a heat conductor, and considering the block of one heat storage material, the front and back sides of this heat storage material block It improves heat transfer to the inside as well as both sides.

Therefore, the heat storage action (heat storage material is in a molten state) performed while transferring heat throughout the thickness direction of the heat storage material is efficiently performed, and the amount of heat held by the heat storage material is released to the outside. The heat dissipation action (the heat storage material gradually solidifies and becomes fixed as a whole) is efficiently performed, and these forces S are repeated.

In addition, since the heat storage material is divided into small parts and divided by the partition made of metal plates, the heat storage material flows inside the panel body and is unevenly distributed as a whole regardless of the installation direction of the panel body and the state of the heat storage material. There is nothing to do. For this reason, there is no restriction | limiting in the installation direction of a panel body, and it can install freely according to a use.

[0038] A typical example of a conventional heat storage panel is one in which a heat storage material is housed in a thin box. The inside of the box is a single storage chamber, and is filled with, for example, a heat storage material having a capacity of 3 liters (3000 cm ³ ). On the other hand, the heat storage panel P described in the first embodiment is filled with, for example, 0.2 ml (0.2 cm ³ ) of a heat storage material per cell, and its capacity corresponds to 1/15000. . By configuring the above-described configuration specific to the present invention and a small-capacity cell, it is possible to obtain a remarkable effect that the thermal conductivity reaches up to 740 times as compared with the above-described conventional example. It is clear. By improving conventional examples It can be said that the thermal conductivity is about 1.4 to 3.2 times higher than the improvement.

The second embodiment provides a cold insulated vehicle using the heat storage panel body. As the heat storage material filled in the heat storage panel according to the present invention, for example, salt water adjusted to weak acidity in which sodium chloride is added to water is used. As a heat storage material for low temperature, a heat storage material having a temperature range in which about 5 ° C melts and solidifies at about 10 ° C can be used.

The case where the heat storage panel body of the present invention is a cold storage vehicle provided in a cold storage room will be described. When salt water (about 8% salt) is used as the heat storage material (cool storage material), the weight is the same as that of water. Moreover, this is cooled and solidified to store the latent heat as a cold storage. Therefore, a comparison between the conventional case of using a lump of iron as a heat storage material and the case of using salt water as a heat storage material is as follows. That is, comparing the weight of lm ^{3 with} the same amount of water as the lump of iron, the specific gravity ratio (water: iron) is 1: 8 in weight. B) Moreover, when comparing the sensible heat, it is 1: 0.1, C) and the water freezes upon freezing and absorbs the latent heat, so this latent heat is 33 5kj. Therefore, comparing the amount of heat (cooling amount) when both are cooled to a temperature of 0 ° C to -10 ° C, if iron is 1, water stores about 9 times the amount of cooling.

[0040] In other words, when the heat storage panel is composed of “same volume” plates, water has a cold storage capacity about nine times that of iron, and its weight is 1/8. Therefore, comparing the weight and heat storage amount, the heat storage effect is about nine times that of iron by using water as a heat storage material, and when water is installed in a vehicle as the heat storage material, the weight is 1 / of that of iron. Therefore, it can be understood how the heat storage panel body of the present invention is superior.

Furthermore, the present invention also provides a container provided with a heat storage panel by applying the configuration of the above embodiment.

[0041] As described above, the heat storage panel body of the present invention achieves a remarkable thermal conductivity and thermal responsiveness by ensuring a wide contact area between the heat storage material and the cover plate / bottom plate. Therefore, the “supercooling phenomenon”, which is a problem of heat storage materials, can be prevented.

Therefore, since the “overcooling phenomenon” is prevented, it is possible to provide a cool vehicle and a container having superior points that cannot be compared with the conventional cool vehicle.

And by applying the heat storage panel body of the present invention, in the first and second embodiments, With the configuration as described, it is possible to obtain a much higher efficiency than the conventional passive solar and to realize a truly efficient active solar. Further, the present invention is not limited to the above-described cold-reserving vehicle and container, but can be used for warming a greenhouse and keeping a vehicle in a living space. Further, in the configuration using the heat storage panel body of the present invention, the effect of heat storage becomes more prominent as the temperature difference between the cooling and heating becomes more severe, and it is possible to greatly save the energy required for air conditioning and heat insulation.

As described above, there are various modified implementations that are not limited to the above-described embodiment.

Claims

The scope of the claims

[1] Two thin metal plates and a partition made of thin metal plates that are interposed between these thin metal plates so as to be capable of conducting heat and form a divided space between the two thin metal plates. And with

A heat storage panel body, wherein the partition body is filled with a heat storage material! /.

[2] The partition body is a honeycomb body made of a thin metal plate, both opening surfaces of the honeycomb body are closed with the thin metal plate, and the small chamber of the honeycomb body is filled with a heat storage material! / The heat storage panel according to claim 1, wherein

[3] The partition body is a metal thin plate formed by alternately forming convex portions and concave portions at constant intervals, and the partition plate is provided with metal thin plates on both sides of the thin plate. The heat storage panel body according to claim 1 or 2, wherein the body and the metal thin plate are thermally connected, and further, the space between the partition body and the metal thin plate is filled with a heat storage material.

[4] A partition made of pure aluminum or aluminum alloy capable of forming a plurality of cells is interposed between a bottom plate and a cover plate made of pure aluminum or aluminum alloy, and the bottom plate, the partition body and the cover plate are bonded together Glue through the agent,

A heat storage panel body comprising a cell of the partition body filled with a heat storage material adjusted to be weakly acidic.

[5] The heat storage panel according to claim 4, wherein the heat storage material is adjusted to have a pH value of weak acidity of about 6.9.

6. The heat storage panel according to claim 4 or 5, wherein an alumite film is formed on the outer surface of the bottom plate and / or the outer surface of the lid plate.

[7] The partition body is formed of a honeycomb plate having a plurality of cells in a honeycomb shape! /, Or 6! /, Or any one of the deviations. Thermal storage panel body.

[8] The honeycomb plate is formed of a thin plate having a thickness of about 0.1 mm, and the bottom plate and the cover plate are formed of a thin plate having a thickness of about 0.1 mm. Item 8. The heat storage panel body according to Item 7.

[9] The heat storage material according to any one of claims 1 to 8, wherein the heat storage material has a characteristic of storing a heat quantity of a latent heat by changing a phase to a melted state or a solid state by transferring heat. Thermal storage panel body.

[10] A plurality of the heat storage panel bodies according to claim 9 are laminated,

The plurality of heat storage panel bodies are each filled with the heat storage material having a different phase change temperature, and the heat storage panel bodies have the phase change temperature of the heat storage material high! /, In order or low! /, In order. A composite panel body characterized by laminating layers.

[11] There is a cold storage in the loading platform of the vehicle,

The heat storage panel body according to any one of claims 1 to 9, wherein the heat storage panel body is fixedly or arbitrarily detachably disposed at a position close to a wall surface inside the cold storage box or a frozen cargo. Refrigerated vehicle.

[12] In containers that contain cargo,

A container characterized in that the heat storage panel body according to any one of claims 1 to 9 is fixedly or arbitrarily detachably arranged at a position close to the inner wall surface or cargo. .