JP6085972B2 - Thermal storage device and storage - Google Patents

Description

  The present invention relates to a heat storage device and a storage, and more particularly relates to a heat storage device that adjusts the ambient temperature to a desired temperature by heat stored in a stored heat storage agent, and a storage that includes the heat storage device. It is.

  2. Description of the Related Art Conventionally, as a heat storage device that adjusts an ambient temperature to a desired temperature by heat stored in a stored heat storage agent, a device including a plurality of heat transfer cases, a cold storage member, and a refrigerant pipe is known.

  The heat transfer case is a flat plate formed by combining a pair of heat transfer plates, and each is supported by a support member and arranged in parallel at predetermined intervals. The cold storage member is formed by storing a sol-like or gel-like cold storage agent in a flexible bag, and is housed in each heat transfer case. The refrigerant pipe is a pipe through which the refrigerant supplied from the refrigerator passes, and is inserted in each heat transfer case so as to be wrapped in the cold storage member.

  In such a heat storage device, when the refrigerant passes through the refrigerant pipe, the heat (cold heat) of the refrigerant is stored in the cold storage agent of the cold storage member, and the ambient air of the heat transfer case is cooled by the cold heat stored in the cold storage agent. (For example, refer to Patent Document 1).

JP-A-9-273844

  However, in the heat storage device as described above, since the refrigerant pipe is inserted in each heat transfer case so as to be wrapped in the cold storage member, the cold heat of the refrigerant is directed toward the outer diameter of the refrigerant pipe through the outer peripheral surface of the refrigerant pipe. Is transmitted to the cold storage agent. In other words, the transfer of cold heat to the cool storage agent is only in the radial direction of the refrigerant pipe, and as a result, the freezing time for freezing the cool storage agent, that is, the heat storage time for storing heat in the heat storage agent is lengthened. End up. Thus, if the heat storage time is lengthened, the time required for the ambient temperature to reach a desired cooling temperature is consequently increased.

  In addition, although the thermal storage apparatus which transmits and stores cold energy to a cool storage agent was demonstrated here, it cannot be overemphasized that the same problem arises also in the thermal storage apparatus which transmits thermal energy to a thermal storage agent and stores it.

  In view of the above circumstances, an object of the present invention is to provide a heat storage device and a container that can shorten the time for adjusting the ambient temperature to a desired temperature.

In order to achieve the above object, a heat storage device according to the present invention includes a main body case in which a heat storage agent is accommodated, and the heat storage device that adjusts the ambient temperature to a desired temperature by heat stored in the heat storage agent. The main body case is configured such that a plurality of plate-like heat storage containers in which the heat storage agent is stored are arranged in parallel so as to form an air passage between adjacent heat storage containers. The wall surfaces facing each other are thermally connected to the path through which the refrigerant passes, whereby heat of the refrigerant is given to the heat storage agent through the wall surface, and one end of the heat storage container is connected to another heat storage container. A common internal space that communicates with the inside of each heat storage container is configured by being connected to one end, and this common internal space has an end on the inlet side of each refrigerant pipe inserted inside the heat storage container Connected to the A first connection pipes that Kyusuru, connected to the outlet end of the refrigerant pipe, and is characterized in that installed a second connection pipes for sending the refrigerant that has passed through the refrigerant pipes to the external device.

  In the heat storage device according to the present invention, a refrigerant pipe through which a refrigerant passes is inserted into the heat storage container, and wall surfaces facing each other are in contact with the refrigerant pipe.

  Moreover, the storage according to the present invention includes the above-described heat storage device.

  According to the heat storage device of the present invention, each of the heat storage containers constituting the main body case is thermally connected to a path through which the refrigerant passes through the wall surfaces facing each other, so that the heat of the refrigerant is used as a heat storage agent through the wall surfaces. Since heat can be applied, heat can be applied from a plurality of directions while increasing the heat transfer area for the heat storage agent, and the heat storage time of the heat storage agent can be shortened. In addition, the main body case is configured such that a plurality of heat storage containers in which a heat storage agent is stored are arranged in parallel so as to form an air passage between adjacent heat storage containers. The exchange area can be increased, and thus the time for cooling the ambient air to a desired temperature can be shortened. Therefore, it is possible to shorten the time for adjusting the ambient temperature to a desired temperature.

  Moreover, according to the storage of this invention, since the said heat storage apparatus is provided, there exists an effect that shortening of the time which adjusts internal temperature to desired temperature can be aimed at.

FIG. 1 is a schematic diagram schematically showing the internal structure of a storage to which the heat storage device according to the first embodiment of the present invention is applied, that is, the storage according to the first embodiment of the present invention. 2 is a perspective view showing a main body case constituting the heat storage device shown in FIG. FIG. 3 is a perspective view showing one heat storage container constituting the main body case shown in FIG. FIG. 4 is a side view showing a case where one heat storage container constituting the main body case shown in FIG. 2 is viewed from the left. 5 is a cross-sectional view taken along line AA in FIG. FIG. 6 is a cross-sectional view showing a modification of the heat storage container constituting the heat storage device according to the first embodiment of the present invention. FIG. 7 is a schematic diagram schematically showing the internal structure of the storage to which the heat storage device according to the second embodiment of the present invention is applied, that is, the storage according to the second embodiment of the present invention. FIG. 8 is a perspective view showing a main body case constituting the heat storage device shown in FIG. 7. FIG. 9 is a side view showing a case where the main body case shown in FIG. 8 is viewed from the right side. FIG. 10 is a transverse cross-sectional view of the rightmost heat storage container constituting the lower part of the main body case shown in FIG. 9. FIG. 11: is a perspective view which shows the modification of the heat storage apparatus which is Embodiment 2 of this invention. FIG. 12 is a side view showing a case where the main body case shown in FIG. 11 is viewed from the right side. FIG. 13 is a longitudinal sectional view of one of the heat storage containers constituting the main body case shown in FIG. FIG. 14 is a perspective view showing a modification of the main body case constituting the heat storage device according to the second embodiment of the present invention. FIG. 15: is a perspective view which shows the modification of the main body case which comprises the heat storage apparatus which is Embodiment 2 of this invention.

  Exemplary embodiments of a heat storage device and a storage according to the present invention will be described below in detail with reference to the accompanying drawings.

<Embodiment 1>
FIG. 1 is a schematic diagram schematically showing the internal structure of a storage to which the heat storage device according to the first embodiment of the present invention is applied, that is, the storage according to the first embodiment of the present invention. The container illustrated here is for holding a commodity stored in a state cooled to a desired temperature, and includes a container main body 1 and a heat storage device 10.

  The container body 1 is configured in a rectangular parallelepiped shape with an open front surface by appropriately combining a plurality of metal plates, and a heat insulating board (not shown) previously formed into a plate shape is disposed on the inner surface thereof. It has a heat insulation structure. The heat insulation board is obtained by attaching a resin film or kraft paper as a face material to both front and back surfaces of a plate-like member formed of a heat insulating material such as urethane foam.

  A caster 2 is disposed at the lower part of the storage body 1, and the storage body 1 is movable. The interior of the storage body 1 is partitioned vertically by the partition plate 3, the upper space of the partition plate 3 is a device storage space 1 a for storing the heat storage device 10, and the lower space of the partition plate 3 is This is a product storage space 1b for storing products. Although not clearly shown in the figure, the partition plate 3 is provided with a plurality of communication holes for communicating the device storage space 1a and the product storage space 1b.

  Further, a front door 4 is provided on the front surface of the container body 1. The front door 4 is for opening and closing the front opening of the storage body 1 and has a heat insulating structure.

  The heat storage device 10 is placed on the upper surface of the partition plate 3 and includes a main body case 10a. As shown in FIG. 2, the main body case 10 a includes a plurality of heat storage containers 11.

  3 and 4 each show one heat storage container constituting the main body case shown in FIG. 2, FIG. 3 is a perspective view, and FIG. 4 is a side view showing the case viewed from the left. is there. 5 is a cross-sectional view taken along line AA in FIG.

  As shown in FIGS. 3 to 5, the heat storage container 11 is made of a material having excellent thermal conductivity such as metal, and has a flat plate shape as a whole. Two through holes 11a are formed in the upper part of the heat storage container 11, and a resin-made shaft support member 12 is formed in the through hole 11a so as to penetrate the through hole 11a. Is attached. The shaft support member 12 closes the open portion of the heat storage container 11 by the through hole 11a by passing through the through hole 11a. A flange 12 a is formed at the right end portion of the shaft support member 12.

  A cylindrical support member (not shown) is relatively inserted through the hole 12b of the shaft support member 12 in each heat storage container 11, and a plurality of heat storage containers 11 are juxtaposed side by side. By attaching an attachment member 13 having an outer diameter larger than the inner diameter of the hole 12b of the shaft support member 12 to the support member protruding from the heat storage container 11 positioned so as to close the openings at both end faces of the support member, FIG. As shown, the main body case 10a is configured. Although not clearly shown in the figure, the hole 12b of the shaft support member 12 is formed with a hole penetrating the inside of each heat storage container 11, and a hole communicating with the hole is also formed in the support member. Has been. Thereby, the inside of each heat storage container 11 which comprises the main body case 10a is connected via the support member.

  A predetermined gap is secured between the heat storage containers 11 adjacent to each other by the flanges 12a of the shaft support members 12, so that an air passage (hereinafter also referred to as an air passage) 14 between the heat storage containers 11 adjacent to each other. Is formed. Here, the interval between the heat storage containers 11 adjacent to each other is not particularly limited as long as the air passage 14 can be formed, but is preferably 6 mm or less, for example.

  A regenerator (heat storage agent) 15 is housed in each heat storage container 11 constituting the main body case 10a, and a refrigerant evaporation pipe 16 is inserted therein.

  As described above, since the inside of each heat storage container 11 constituting the main body case 10a communicates via the support member, the cold storage agent 15 can move to the other heat storage container 11 via the support member. It has become.

  The refrigerant evaporation pipe 16 is a refrigerant pipe made of a material having excellent thermal conductivity, such as metal, and constitutes a path through which refrigerant supplied from the refrigerator 5 described later passes. As shown in FIGS. 3 to 5, the refrigerant evaporation pipe 16 is arranged in a meandering state inside the heat storage container 11, and the inlet side end portion 16 a and the outlet side end portion 16 b are formed of a heat storage container. 11 protrudes upward from the rear upper surface.

  The refrigerant evaporation pipe 16 has an outer diameter that is equal to or slightly larger than the separation distance between the left wall surface 11L and the right wall surface 11R, which are opposite wall surfaces of the heat storage container 11, and is shown in FIG. Thus, a part of the outer peripheral surface is in contact with the left wall surface 11L and the right wall surface 11R. That is, the mutually opposing wall surfaces (the left wall surface 11L and the right wall surface 11R) of the heat storage container 11 are thermally connected to a path through which the refrigerant passes.

  Moreover, in this refrigerant | coolant evaporation pipe | tube 16, as shown in FIG. 4, the gap | interval of the distance L1 is formed between the downward curved part and the bottom face of the thermal storage container 11, and the front side part and the thermal storage container 11 of FIG. A gap of a distance L2 is formed between the front wall surface 11F and a gap of a distance L3 is formed between the rear side portion and the rear wall surface 11B of the heat storage container 11. Thereby, the cool storage agent 15 can be spread to every corner in the space inside the heat storage container 11.

  In the main body case 10a having such a configuration, the heat storage containers 11 arranged side by side are divided into a plurality of (five in the example of FIG. 2) blocks. Here, the first block 10a1, the second block 10a2, the third block 10a3, the fourth block 10a4, and the fifth block 10a5 are referred to from the left to the right.

  In the first block 10a1 to the fifth block 10a5, although not shown in the drawing, in the heat storage containers 11 adjacent to each other on the left and right, the outlet side end portion 16b of the refrigerant evaporation pipe 16 of the left heat storage container 11 is used. And the inlet end 16a of the refrigerant evaporation pipe 16 of the right heat storage container 11 are connected. That is, the refrigerant | coolant evaporation pipe | tube 16 inserted in the some heat storage container 11 which comprises each block 10a1-10a5 is mutually connected, and is in the communication state.

  In each of the blocks 10a1 to 10a5, the inlet side end 16a of the refrigerant evaporation pipe 16 in the leftmost heat storage container 11 is connected to the refrigerant supply pipe 6, while the rightmost heat storage container 11 has An outlet side end 16 b of the refrigerant evaporation pipe 16 is connected to the refrigerant delivery pipe 7.

  The refrigerant supply pipe 6 and the refrigerant delivery pipe 7 are pipes for connecting the heat storage device 10 and the refrigerator 5, respectively.

  As shown in FIG. 1, the refrigerator 5 includes a compressor 5 a and a condenser 5 b. The compressor 5a is connected to the refrigerant delivery pipe 7 at the inlet side, and sucks the refrigerant from the heat storage device 10 through the refrigerant delivery pipe 7, and compresses the drawn refrigerant into a high temperature and high pressure state. The condenser 5 b is connected to a pipe whose inlet side is connected to the outlet side of the compressor 5 a, and its outlet side is connected to the refrigerant supply pipe 6. The condenser 5 b is configured to cause the refrigerant compressed and discharged by the compressor 5 a to exchange heat with ambient air to condense, and supply the refrigerant condensed through the refrigerant supply pipe 6 to the heat storage device 10.

  In the first embodiment of the present invention, such a refrigerator 5 is provided to be detachable from the storage. Although not shown in the figure, the supply end of the refrigerant supply pipe 6 and the inlet side end 16a of the refrigerant evaporation pipe 16 of the heat storage container 11 at the leftmost in each of the blocks 10a1 to 10a5 of the main body case 10a are connector members. The outlet end of the refrigerant delivery pipe 7 and the outlet side end 16b of the refrigerant evaporation pipe 16 of the rightmost heat storage container 11 in each of the blocks 10a1 to 10a5 of the main body case 10a, Is detachable via a connector member. When the refrigerant is allowed to pass through the refrigerant evaporation pipe 16, the refrigerant supply pipe 6, the refrigerant delivery pipe 7, and the refrigerant evaporation pipe 16 are connected, and when the refrigerant does not need to pass through the refrigerant evaporation pipe 16, The refrigerant supply pipe 6, the refrigerant delivery pipe 7, and the refrigerant evaporation pipe 16 are separated.

  In the present invention, the refrigerator 5 is not detachable from the storage, but may be always stored in the storage. In this case, the refrigerator 5 may be stored in the storage room defined by the product storage space 1b below the product storage space 1b in the storage body 1 and the strength of the storage body 1 is sufficiently large. For example, it may be placed on the upper surface of the container body 1.

  The refrigerant supply pipe 6 is a pipe for supplying a refrigerant from the refrigerator 5 to the heat storage device 10, and is branched in the middle and each supply end at the branch destination is the leftmost in each of the blocks 10a1 to 10a5. 11 is connected to the inlet end 16a of the refrigerant evaporation pipe 16. Although not shown in the drawing, the refrigerant supply pipe 6 is provided with a distributor and an expansion mechanism in the middle thereof. The distributor is for uniformly distributing the refrigerant to the blocks 10a1 to 10a5. The expansion mechanism is composed of an expansion valve, a capillary tube, or the like, and decompresses the refrigerant condensed in the condenser 5b to adiabatically expand.

  The refrigerant delivery pipe 7 is a pipe for delivering the refrigerant from the heat storage device 10 to the refrigerator 5, and the outlet end side of the refrigerant evaporation pipe 16 of the heat storage container 11 whose delivery end is on the rightmost side in each of the blocks 10 a 1 to 10 a 5. The pipes connected to the end portion 16 b join in the middle and are connected to the refrigerator 5.

  In the storage having such a configuration, when the cold storage agent 15 of the heat storage device 10 is frozen, that is, when the cold storage agent 15 is stored, the refrigerant supply pipe 6, the refrigerant delivery pipe 7, and the refrigerant evaporation pipe 16 are connected. The refrigerator 5 is connected and driven.

  As a result, the high-temperature and high-pressure refrigerant compressed by the compressor 5a passes through the refrigerant supply pipe 6 after being condensed by the condenser 5b, and is adiabatically expanded by the expansion mechanism on the way to become a low-temperature and low-pressure refrigerant. It is supplied to each of the blocks 10a1 to 10a5 in the ten main body cases 10a. The low-temperature and low-pressure refrigerant supplied to each block 10a1 to 10a5 passes through the refrigerant evaporation pipe 16 in each block 10a1 to 10a5. The refrigerant passing through the refrigerant evaporating pipe 16 evaporates by exchanging heat with the surroundings while passing through the refrigerant evaporating pipe 16, and then sucked into the compressor 5 a through the refrigerant delivery pipe 7 and repeatedly circulates.

  Here, since a part of the outer peripheral surface of the refrigerant evaporation pipe 16 is in contact with the left wall surface 11L and the right wall surface 11R facing each other of the heat storage container 11, the cold heat of the refrigerant passing through the refrigerant evaporation pipe 16 is It is transmitted to the right wall surface 11R. Therefore, the cool storage agent 15 accommodated in each heat storage container 11 is cooled from both the left wall surface 11 </ b> L and the right wall surface 11 </ b> R and is also cooled from the outer peripheral surface of the refrigerant evaporation pipe 16.

  Moreover, in the said thermal storage apparatus 10, since the main body case 10a is comprised in parallel with the left and right in the aspect which forms the air path 14 between the several thermal storage containers 11 between the mutually adjacent thermal storage containers 11, The heat exchange area with the surrounding air can be increased by increasing the surface area of the case 10a.

  Thus, according to the heat storage apparatus 10 which is this Embodiment 1, the mutually opposing wall surface (left wall surface 11L and right wall surface 11R) of each heat storage container 11 which comprises the main body case 10a was inserted in the heat storage container 11. Since the refrigerant evaporating pipe 16 is in contact with the outer peripheral surface, the cooling heat of the refrigerant can be given to the cold storage agent 15 through the wall surfaces 11L and 11R. The freezing time of the cool storage agent 15, that is, the heat storage time can be shortened. The main body case 10a is configured such that a plurality of heat storage containers 11 are arranged in parallel with each other so as to form an air passage 14 between adjacent heat storage containers 11, thereby increasing the heat exchange area with the surrounding air. Therefore, the time for cooling the internal air of the container body 1 to a desired temperature can be shortened. Therefore, it is possible to shorten the time for adjusting the ambient temperature to a desired temperature.

  According to the heat storage device 10, cold heat can be applied to the cold storage agent 15 also from the outer peripheral surface of the refrigerant evaporation pipe 16, so that the heat storage time can be further shortened.

  Further, according to the heat storage device 10, the opposing wall surfaces (the left wall surface 11 </ b> L and the right wall surface 11 </ b> R) of each heat storage container 11 constituting the main body case 10 a are the outer peripheral surfaces of the refrigerant evaporation pipe 16 inserted into the heat storage container 11. Therefore, the ambient air can be cooled through the wall surfaces 11L and 11R regardless of the state of the regenerator 15.

  According to the container which is Embodiment 1 of the present invention, since the heat storage device 10 is provided, it is possible to shorten the time for adjusting the internal temperature of the container body 1 to a desired temperature.

  In the heat storage device 10 according to the first embodiment described above, the outer diameter of the refrigerant evaporation pipe 16 is equal to or greater than the separation distance between the left wall surface 11L and the right wall surface 11R, which are the opposite wall surfaces of the heat storage container 11. The refrigerant evaporation pipe 16 has a left outer peripheral surface in contact with the left wall surface 11L and a right outer peripheral surface in contact with the right wall surface 11R. In the present invention, the following configuration is used. It may be. That is, as shown in FIG. 6, when the outer diameter of the refrigerant evaporation pipe 16 ′ is smaller than the distance between the left wall surface 11 </ b> L and the right wall surface 11 </ b> R that are opposite wall surfaces of the heat storage container 11, the refrigerant evaporation pipe 16 ′. Of these, the outer peripheral surface of the portion allowing the refrigerant to pass upward may be in contact with the left wall surface 11L, and the outer peripheral surface of the portion allowing the refrigerant to pass downward may be in contact with the right wall surface 11R. Also by this, the effect similar to the said thermal storage apparatus 10 can be show | played, and it becomes possible to distribute the cool storage agent 15 in each thermal storage container 11 to every corner reliably.

<Embodiment 2>
FIG. 7 is a schematic diagram schematically showing the internal structure of the storage to which the heat storage device according to the second embodiment of the present invention is applied, that is, the storage according to the second embodiment of the present invention. In addition, the same code | symbol is attached | subjected and demonstrated to what has the same structure as the storage (heat storage apparatus 10) of Embodiment 1 mentioned above.

  The container illustrated here is for holding the product stored therein in a state cooled to a desired temperature, and is configured to include the container main body 1 and the heat storage device 20.

  The container body 1 is configured in a rectangular parallelepiped shape with an open front surface by appropriately combining a plurality of metal plates, and a heat insulating board (not shown) previously formed into a plate shape is disposed on the inner surface thereof. It has a heat insulation structure. The heat insulation board is obtained by attaching a resin film or kraft paper as a face material to both front and back surfaces of a plate-like member formed of a heat insulating material such as urethane foam.

  A caster 2 is disposed at the lower part of the storage body 1, and the storage body 1 is movable. The interior of the storage body 1 is partitioned vertically by the partition plate 3, the upper space of the partition plate 3 is a device storage space 1 a for storing the heat storage device 20, and the lower space of the partition plate 3 is This is a product storage space 1b for storing products. Although not clearly shown in the figure, the partition plate 3 is provided with a plurality of communication holes for communicating the device storage space 1a and the product storage space 1b.

  Further, a front door 4 is provided on the front surface of the container body 1. The front door 4 is for opening and closing the front opening of the storage body 1 and has a heat insulating structure.

  The heat storage device 20 is placed on the upper surface of the partition plate 3 and includes a main body case 20a. As shown in FIG. 8, the main body case 20a is integrally configured by connecting a plurality of heat storage containers 21 made of a material having excellent thermal conductivity such as metal. Explaining in more detail, the main body case 20a is configured such that the lower portion 20a1 is arranged side by side in a manner in which a plurality of flat plate-shaped heat storage containers 21 form an air passage 22 between adjacent heat storage containers 21. In addition, the upper portion 20a2 is connected to the upper end portion of another heat storage vessel 21 adjacent to the upper end portion of each heat storage vessel 21 so as to communicate with the inside of the lower end portion of each heat storage vessel 21 (hereinafter referred to as the upper space). (Also referred to as 23). In such a main body case 20a, the interval between the heat storage containers 21 in the lower portion 20a1 is not particularly limited as long as the air passage 22 can be formed, but is preferably 6 mm or less, for example.

  9 and 10 show the main body case shown in FIG. 8, respectively. FIG. 9 is a side view showing the main body case as viewed from the right side. FIG. 10 shows the lower part of the main body case. It is a cross-sectional view of the heat storage container on the rightmost side. As shown in FIG. 9 and FIG. 10, the refrigerant case 24 is inserted in the main body case 20 a and a cold storage agent (thermal storage agent) 25 is accommodated.

  The refrigerant evaporating pipe 24 is a refrigerant pipe made of a material having excellent thermal conductivity such as metal, and constitutes a path through which refrigerant supplied from the refrigerator 5 described later passes. The refrigerant evaporation pipe 24 has an inlet side end 24 a connected to a first refrigerant evaporation main pipe (first jumper pipe) 26 and an outlet side end 24 b of a second refrigerant evaporation main pipe (second jumper pipe) 27. It is inserted in each heat storage container 21 while meandering up and down from back to front. In FIG. 8, for convenience, only the refrigerant evaporation pipe 24 inserted into the rightmost heat storage container 21 is shown, but the other heat storage containers 21 have the same inlet as the rightmost heat storage container 21. The refrigerant evaporation pipe 24 whose side end 24a is connected to the first refrigerant evaporation main pipe 26 and whose outlet side end 24b is connected to the second refrigerant evaporation main pipe 27 meanders up and down from the rear to the front. Has been inserted.

  That is, these refrigerant evaporation pipes 24 are provided in such a manner as to branch from the first refrigerant evaporation main pipe 26 and merge with the second refrigerant evaporation main pipe 27. The first refrigerant evaporating main pipe 26 extends in the left-right direction in the upper space 23 of the main body case 20a, and its inlet-side end portion 26a bends upward so that the upper surface on the left side of the main body case 20a. It protrudes further upward. The second refrigerant evaporating main pipe 27 extends in the left-right direction on the front side of the first refrigerant evaporating main pipe 26 in the upper space 23 of the main body case 20a, and the outlet side end portion 27a thereof extends upward. It is bent and protrudes upward from the upper surface on the left side of the main body case 20a.

  The refrigerant evaporation pipe 24 has an outer diameter that is equal to or slightly larger than the separation distance between the left wall surface 21L and the right wall surface 21R, which are opposite wall surfaces of the heat storage container 21, and is shown in FIG. As described above, a part of the outer peripheral surface is in contact with the left wall surface 21L and the right wall surface 21R. That is, the mutually opposing wall surfaces (the left wall surface 21L and the right wall surface 21R) of the heat storage container 21 are thermally connected to a path through which the refrigerant passes. The curved portion 241 on the upper end side of the refrigerant evaporation pipe 24 is located in the upper space 23.

  The cool storage agent 25 is accommodated in the upper space 23 of the main body case 20a so that the upper surface (liquid level) thereof is positioned, as indicated by a two-dot chain line in FIGS. Here, as described above, the curved portion 241 on the upper end side of each refrigerant evaporation pipe 24 is positioned in the upper space 23, so that the liquid state is formed in the space between the refrigerant evaporation pipe 24 and the heat storage container 21 in each heat storage container 21. The cold storage agent 25 can be distributed.

  In such a main body case 20 a, the inlet side end portion 26 a of the first refrigerant evaporation main pipe 26 is connected to the supply end portion of the refrigerant supply pipe 6, while the outlet side end portion of the second refrigerant evaporation main pipe 27. 27 a is connected to the delivery end of the refrigerant delivery pipe 7.

  The refrigerant supply pipe 6 and the refrigerant delivery pipe 7 are pipes for connecting the heat storage device 20 and the refrigerator 5, respectively.

  As shown in FIG. 7, the refrigerator 5 includes a compressor 5a and a condenser 5b. The compressor 5a is connected to the refrigerant delivery pipe 7 at the inlet side, and sucks the refrigerant from the heat storage device 20 through the refrigerant delivery pipe 7, and compresses the drawn refrigerant into a high temperature and high pressure state. The condenser 5 b is connected to a pipe whose inlet side is connected to the outlet side of the compressor 5 a, and its outlet side is connected to the refrigerant supply pipe 6. The condenser 5b is configured to heat-condensate the refrigerant compressed and discharged by the compressor 5a with ambient air to condense, and supply the refrigerant condensed through the refrigerant supply pipe 6 to the heat storage device 20.

  In the second embodiment of the present invention, such a refrigerator 5 is provided to be detachable from the storage. Although not clearly shown in the drawing, the supply end of the refrigerant supply pipe 6 and the inlet side end 26a of the first refrigerant evaporation main pipe 26 are detachable via a connector member, and the supply of the refrigerant supply pipe 7 The end part and the outlet side end part 27a of the second refrigerant evaporation main pipe 27 are detachable via a connector member. When the refrigerant is allowed to pass through the refrigerant evaporation pipe 24, the refrigerant supply pipe 6 and the first refrigerant evaporation main pipe 26 are connected, the refrigerant delivery pipe 7 and the second refrigerant evaporation main pipe 27 are connected, and the refrigerant When the refrigerant does not need to pass through the evaporation pipe 24, the refrigerant supply pipe 6 and the first refrigerant evaporation main pipe 26 are separated, and the refrigerant delivery pipe 7 and the second refrigerant evaporation main pipe 27 are separated. ing.

  In the present invention, the refrigerator 5 is not detachable from the storage, but may be always stored in the storage. In this case, the refrigerator 5 may be stored in the storage room defined by the product storage space 1b below the product storage space 1b in the storage body 1 and the strength of the storage body 1 is sufficiently large. For example, it may be placed on the upper surface of the container body 1.

  The refrigerant supply pipe 6 is a pipe for supplying a refrigerant from the refrigerator 5 to the heat storage device 20, and an expansion mechanism is disposed in the middle thereof. The expansion mechanism is composed of an expansion valve, a capillary tube, or the like, and decompresses the refrigerant condensed in the condenser 5b to adiabatically expand. The refrigerant delivery pipe 7 is a pipe for sending the refrigerant from the heat storage device 20 to the refrigerator 5.

  In the storage having such a configuration, when the cold storage agent 25 of the heat storage device 20 is frozen, that is, when the cold storage agent 25 is stored, the refrigerant supply pipe 6 and the first refrigerant evaporation main pipe 26 are connected. At the same time, the refrigerant delivery pipe 7 and the second refrigerant evaporation main pipe 27 are connected to drive the refrigerator 5.

  As a result, the high-temperature and high-pressure refrigerant compressed by the compressor 5a passes through the refrigerant supply pipe 6 after being condensed by the condenser 5b, and is adiabatically expanded by the expansion mechanism on the way to become a low-temperature and low-pressure refrigerant. 20 main body cases 20a. The low-temperature and low-pressure refrigerant supplied to the main body case 20 a passes through each refrigerant evaporation pipe 24 via the first refrigerant evaporation main pipe 26. The refrigerant passing through the refrigerant evaporation pipe 24 evaporates by exchanging heat with the surroundings while passing through the refrigerant evaporation pipe 24, and then reaches the refrigerant delivery pipe 7 via the second refrigerant evaporation main pipe 27. The refrigerant is sucked into the compressor 5a through the refrigerant delivery pipe 7, and the circulation is repeated.

  Here, part of the outer peripheral surface of the refrigerant evaporation tube 24 is in contact with the left wall surface 21L and the right wall surface 21R facing each other of the heat storage container 21 constituting the main body case 20a. Cold heat is transmitted to the left wall surface 21L and the right wall surface 21R. Therefore, the cool storage agent 25 stored in each heat storage container 21 is cooled from both the left wall surface 21L and the right wall surface 21R, and is also cooled from the outer peripheral surface of the refrigerant evaporation pipe 24.

  Further, in the heat storage device 20, the lower part 20a1 of the main body case 20a is configured such that a plurality of heat storage containers 21 are arranged side by side in such a manner that an air passage 22 is formed between adjacent heat storage containers 21. Therefore, the heat exchange area with the surrounding air can be expanded by increasing the surface area of the main body case 20a.

  As described above, according to the heat storage device 20 according to the second embodiment, the mutually opposing wall surfaces (the left wall surface 21L and the right wall surface 21R) of the respective heat storage containers 21 constituting the main body case 20a are the outer peripheral surfaces of the refrigerant evaporation pipe 24. Since the cold heat of the refrigerant can be given to the cold storage agent 25 through these wall surfaces 21L and 21R, cold heat can be given from a plurality of directions while expanding the heat transfer area with respect to the cold storage agent 25. The freezing time of the agent 25, that is, the heat storage time can be shortened. And the lower part 20a1 of main body case 20a is arranged in parallel by the aspect which forms the air path 22 between the thermal storage containers 21 with the mutually adjacent thermal storage container 21, and heat exchange with ambient air Since the area can be enlarged, the time for cooling the internal air of the storage container body 1 to a desired temperature can be shortened. Therefore, it is possible to shorten the time for adjusting the ambient temperature to a desired temperature.

  According to the heat storage device 20, cold heat can be applied to the cold storage agent 25 also from the outer peripheral surface of the refrigerant evaporation tube 24, so that the heat storage time can be further shortened.

  Moreover, according to the said heat storage apparatus 20, since the upper space 23 connected to the inside of each heat storage container 21 which comprises this main body case 20a is formed in the upper part 20a2 of main body case 20a, the cool storage agent 25 solidifies. Even if the volume expands in this case, it is possible to prevent the main body case 20a from being destroyed by the expansion of the cold storage agent 25 by the upper space 23 acting as a buffer space. Moreover, by introducing the cool storage agent 25 so that the upper surface (liquid level) is positioned in the upper space 23, it is possible to fill the entire space of each heat storage container 21 serving as the lower portion 20a1 of the main body case 20a with the cool storage agent 25. Become.

  Furthermore, according to the heat storage device 20, since the first refrigerant evaporation main pipe 26 and the second refrigerant evaporation main pipe 27 connected to each refrigerant evaporation pipe 24 are installed in the upper space 23 of the main body case 20a, the refrigerant supply pipe 6 can be connected to the refrigerator 5 simply by connecting the first refrigerant evaporating main pipe 26 and connecting the refrigerant delivery pipe 7 to the second refrigerant evaporating main pipe 27, so that the installation process can be simplified. become. In addition, since only the holes through which the first refrigerant evaporation main pipe 26 and the second refrigerant evaporation main pipe 27 protrude are formed in the main body case 20a, the sealing performance of the main body case 20a can be improved. Changes in the characteristics of the regenerator 25 itself due to changes in the components can be suppressed, and the reliability of the thermal characteristics can be prolonged.

  According to the container which is Embodiment 2 of this invention, since the said thermal storage apparatus 20 is provided, the shortening of the time which adjusts the internal temperature of the container main body 1 to desired temperature can be aimed at.

  FIG. 11: is a perspective view which shows the modification of the heat storage apparatus which is Embodiment 2 of this invention. In addition, the same code | symbol is attached | subjected to what has the same structure as the thermal storage apparatus 20 which is Embodiment 2 mentioned above, and the description is abbreviate | omitted suitably.

  The heat storage device 20 'exemplified here includes a main body case 20a. The main body case 20a is integrally configured by connecting a plurality of heat storage containers 21 made of a material having excellent thermal conductivity such as metal. Explaining in more detail, the main body case 20a is configured such that the lower portion 20a1 is arranged side by side in a manner in which a plurality of flat plate-shaped heat storage containers 21 form an air passage 22 between adjacent heat storage containers 21. In addition, a common internal space (upper space) 23 that communicates with the inside of the lower end of each heat storage container 21 by connecting the upper part 20a2 with the upper end of another heat storage container 21 to which the upper end of each heat storage container 21 is adjacent. Is formed. In such a main body case 20a, the interval between the heat storage containers 21 in the lower portion 20a1 is not particularly limited as long as the air passage 22 can be formed, but is preferably 6 mm or less, for example.

  12 and 13 show the main body case shown in FIG. 11, respectively. FIG. 12 is a side view showing the main body case as viewed from the right side, and FIG. It is a longitudinal cross-sectional view of the heat storage container. As shown in FIGS. 12 and 13, a refrigerant evaporation pipe 34 is inserted in the main body case 20 a and a cold storage agent (thermal storage agent) 25 is accommodated.

  The refrigerant evaporating pipe 34 is a refrigerant pipe made of a material having excellent thermal conductivity such as metal, for example, and constitutes a path through which the refrigerant supplied from the refrigerator 5 passes. The refrigerant evaporation pipe 34 has an inlet side end 34a connected to the first refrigerant evaporation main pipe 26 and an outlet side end 34b connected to the second refrigerant evaporation main pipe 27. While being meandering back and forth, the downstream side portion after meandering is inserted into each heat storage container 21 in such a manner that the front region extends upward relative to the curved portion on the front side. And it extends toward the rear end side part of the refrigerant evaporation pipe 34, that is, the rear side curved portion 341, and the rear wall surface 21B of the heat storage container 21, and to the front end side part of the refrigerant evaporation pipe 34, that is, upward. A gap of at least a distance m is formed between the portion 342 and the front wall surface 21 </ b> F of the heat storage container 21.

  In FIG. 11, for the sake of convenience, only the refrigerant evaporation pipe 34 inserted into the rightmost heat storage container 21 is shown, but the other heat storage containers 21 also have the same inlet as the rightmost heat storage container 21. The refrigerant evaporation pipe 34 whose side end 34a is connected to the first refrigerant evaporation main pipe 26 and whose outlet side end 34b is connected to the second refrigerant evaporation main pipe 27 meanders back and forth from above to below. Has been inserted.

  The refrigerant evaporation pipe 34 has an outer diameter that is equal to or slightly larger than the separation distance between the left wall surface 21L and the right wall surface 21R, which are the opposite wall surfaces of the heat storage container 21, and is shown in FIG. As described above, part of the outer peripheral surface is in contact with the left wall surface 21L and the right wall surface 21R. That is, the mutually opposing wall surfaces (the left wall surface 21L and the right wall surface 21R) of the heat storage container 21 are thermally connected to a path through which the refrigerant passes.

  Even in the heat storage device 20 ′ having such a configuration, part of the outer peripheral surface of the refrigerant evaporation pipe 34 is in contact with the left wall surface 21L and the right wall surface 21R facing each other of the heat storage container 21 constituting the main body case 20a. By passing the refrigerant through the refrigerant evaporation pipe 34, the cold heat of the refrigerant is transmitted to the left wall surface 21L and the right wall surface 21R. Therefore, the cool storage agent 25 housed in each heat storage container 21 is cooled from both the left wall surface 21L and the right wall surface 21R, and is also cooled from the outer peripheral surface of the refrigerant evaporation pipe 34.

  In the heat storage device 20 ′, the lower part 20 a 1 of the main body case 20 a is configured such that a plurality of heat storage containers 21 are arranged side by side in a manner in which an air passage 22 is formed between adjacent heat storage containers 21. Therefore, the heat exchange area with the surrounding air can be increased by increasing the surface area of the main body case 20a.

  According to the heat storage device 20 ′ as described above, the opposing wall surfaces (the left wall surface 21 </ b> L and the right wall surface 21 </ b> R) of each heat storage container 21 constituting the main body case 20 a are in contact with the outer peripheral surface of the refrigerant evaporation pipe 34. In addition, since the cold heat of the refrigerant can be given to the cold storage agent 25 through the wall surfaces 21L and 21R, cold heat can be given from a plurality of directions while expanding the heat transfer area with respect to the cold storage agent 25, and the freezing time of the cold storage agent 25 That is, the heat storage time can be shortened. And the lower part 20a1 of main body case 20a is arranged in parallel by the aspect which forms the air path 22 between the thermal storage containers 21 with the mutually adjacent thermal storage container 21, and heat exchange with ambient air Since the area can be enlarged, the time for cooling the internal air of the storage container body 1 to a desired temperature can be shortened. Therefore, it is possible to shorten the time for adjusting the ambient temperature to a desired temperature.

  The preferred embodiments 1 and 2 of the present invention have been described above, but the present invention is not limited to these, and various modifications can be made.

  In Embodiment 1 and 2 mentioned above, as an example in which the mutually opposing wall surfaces (left wall surfaces 11L and 21L and right wall surfaces 11R and 21R) of the heat storage containers 11 and 21 are thermally connected to a path through which the refrigerant passes, Although the wall surfaces 11L, 11R, 21L, and 21R are in contact with the outer peripheral surfaces of the refrigerant evaporation pipes 16 and 24, the present invention is not limited to this, and the wall surfaces facing each other of the heat storage container are a common refrigerant. By configuring a path, the path may be thermally connected to the path, or a path through which the refrigerant passes may be configured inside the wall surface. Such a configuration can also provide the same operational effects as the heat storage devices 10 and 20 of the first and second embodiments.

  In the heat storage device 20 according to the second embodiment and the heat storage device 20 ′ as a modification thereof, the inlet side end portion 26a and the outlet side end portion of the first refrigerant evaporation main pipe 26 and the second refrigerant evaporation main pipe 27 are used. 27a protrudes upward from the upper surface on the left side of the main body case 20a. In the present invention, as shown in FIGS. 14 and 15, the inlet side end portion 26a has the first refrigerant evaporation main pipe. 26 extends upward from the central portion of the main body case 20 and protrudes from the rear of the central portion of the upper surface of the main body case 20 a, and the outlet side end portion 27 a faces upward from the central portion of the second refrigerant evaporation main pipe 27. It may extend and protrude from the front of the central portion of the upper surface of the main body case 20a. By adopting such a configuration, it is possible to favorably distribute the refrigerant to the refrigerant evaporation tubes 24 and 34.

  In Embodiment 2 mentioned above, the upper end part of each heat storage container 21 which comprises the main body case 20a is connected with the upper end part of the other adjacent heat storage container 21, and is connected with the inside of the lower end part of each heat storage container 21. Although the common internal space 23 was formed, in the present invention, the common internal space is connected to the lower end of another heat storage container adjacent to the lower end of each heat storage container constituting the main body case. And may be formed so as to communicate with the inside of the upper end of each heat storage container.

  In Embodiment 1 and 2 mentioned above, although what stored cold energy was illustrated as the thermal storage apparatuses 10 and 20, in this invention, a thermal storage apparatus may store warm heat.

DESCRIPTION OF SYMBOLS 10 Thermal storage apparatus 10a Main body case 11 Thermal storage container 11L Left wall surface 11R Right wall surface 14 Air passage 15 Cold storage agent (thermal storage agent)
16 Refrigerant evaporation pipe (refrigerant piping)
20 heat storage device 20a body case 21 heat storage container 21L left wall surface 21R right wall surface 22 air passage 23 upper space (common internal space)
24 Refrigerant evaporation pipe (refrigerant piping)
24a Inlet side end 24b Outlet side end 25 Cold storage agent (heat storage agent)
26 1st refrigerant evaporation main pipe (1st crossover piping)
27 Second refrigerant evaporation main pipe (second transition pipe)

Claims (3)

In a heat storage device that includes a main body case in which a heat storage agent is stored, and adjusts the ambient temperature to a desired temperature by heat stored in the heat storage agent.
The main body case is configured such that a plurality of flat plate-shaped heat storage containers in which the heat storage agent is housed are arranged in parallel so as to form an air passage between adjacent heat storage containers,
Each heat storage container is thermally connected to a path through which the refrigerant passes through mutually facing wall surfaces, thereby giving heat of the refrigerant to the heat storage agent through the wall surfaces ,
One end portion of the heat storage container is connected to one end portion of another heat storage container to constitute a common internal space that communicates with the inside of each heat storage container. Connected to the inlet side end of each refrigerant pipe inserted inside, and connected to the outlet side end of each refrigerant pipe and supplying the refrigerant to each refrigerant pipe, and passes through each refrigerant pipe A heat storage device characterized in that a second crossover pipe for sending the refrigerant to an external device is installed .   The heat storage device according to claim 1, wherein a refrigerant pipe through which a refrigerant passes is inserted in the heat storage container, and opposite wall surfaces are in contact with the refrigerant pipe. A container having the heat storage device according to claim 1 or 2 .

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