JP2009115366A - Heat reservoir - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heat reservoir of high efficiency and high capacity to be used in hot water supply, air-conditioning, drying and the like. <P>SOLUTION: This heat reservoir includes a heat reserving agent 1, a belt-like heat transfer body 2 having the multiple bent shape, and an angular shaped-casing 3 having a heat transferring function to a medium on at least one face of a frame, and as the heat reserving agent 1 and the heat transfer body 2 are received inside of the angular casing 3, the heat can be efficiently transferred to the heat reserving agent 1 inside of the angular casing 3, and further a bulk ratio of the heat reservoir in mounting can be improved by using the angular heat reserving bodies in a stacked state. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a heat storage body used for hot water supply, air conditioning, drying, and the like.

  Conventionally, this type of heat storage body is configured by storing a heat storage agent and a heat transfer promoting material made of an amorphous wire mesh in a casing of a spherical capsule. The heat storage body is used by filling the heat storage tank, and heat is stored in the heat storage body by circulating high-temperature water heated by a heat source to the heat storage tank. After heat exchange, it was taken out from the heat storage tank as hot water and used for hot water supply or the like (for example, see Patent Document 1).

FIG. 6 shows a conventional heat storage body described in Patent Document 1. In FIG. As shown in FIG. 6, it is composed of a heat storage agent 1, a heat transfer body 2, and a spherical casing 3.
JP-A-6-281371

  However, in the conventional configuration, heat is stored from the outside of the spherical capsule casing by heating the internal heat storage agent. However, since the thermal conductivity of the heat storage agent is low, apparent heat conduction is achieved using a heat transfer body. You can improve the rate.

  However, since an amorphous wire mesh is used for the heat transfer body and a thick spherical capsule casing is used to ensure strength, heat is not transferred sufficiently to the heat storage agent in the center of the spherical capsule, so heat storage efficiency However, since the volume ratio of the heat storage body filled in the heat storage tank is as low as about 50% due to the geometric limitation of spherical shape, the heat storage capacity is also low.

  The present invention solves the above-described conventional problems, and an object thereof is to provide a highly efficient and large capacity heat storage body.

  In order to solve the above-described conventional problems, the heat storage body of the present invention includes a heat storage agent, a belt-shaped heat transfer body having a ninety-nine fold shape, and a rectangular shape in which at least one surface of the frame has a heat transfer function to the medium. A casing, wherein the heat storage agent and the heat transfer body are housed in the square casing, and heat is efficiently transferred to the heat storage agent in the square casing. Furthermore, the volume ratio of the heat storage body at the time of mounting can be increased by stacking and using rectangular heat storage bodies.

  According to the present invention, a highly efficient and large capacity heat storage body can be provided.

  A first invention includes a heat storage agent, a belt-shaped heat transfer body having a ninety-nine fold shape, and a rectangular casing in which at least one surface of the frame has a function of transferring heat to a medium. The heat storage agent and the heat transfer body are housed inside, and can efficiently transfer heat to the heat storage agent inside the rectangular casing. By stacking and using, the volume ratio of the heat storage body at the time of mounting can be increased.

The second invention is characterized in that a heat insulator is provided on a surface that is not a heat transfer surface of the rectangular casing of the first invention, and heat transfer between adjacent heat storage bodies during mounting is performed. Therefore, it is possible to realize a heat storage body having a high efficiency with little heat loss.

  The third invention is characterized in that, in particular, the prismatic casing of the first or second invention is provided with a convex portion on an end surface which is not a heat transfer surface and a concave portion on the other end surface, and is adjacent to heat storage during mounting. The convex portion is fitted and fixed to the concave portion of the body, and the position of the heat storage body can be accurately fixed and stacked.

  According to a fourth aspect of the invention, particularly in the rectangular casing according to any one of the first to third aspects of the invention, a sealing material, a member provided with a sealing groove and a fixing hole for holding the sealing material, and the insertion into the fixing hole A rectangular casing is formed by a lid member provided with a projection to be stored. A heat storage agent and a belt-shaped heat transfer body are accommodated in a rectangular casing, and the projection of the rectangular casing lid is rectangular. It is inserted and fixed in the fixing hole of the casing, and the square casing and the square casing lid can be sealed with a sealing material, and the leakage of the heat storage agent can be prevented with a simple configuration and the reliability can be improved. .

  According to a fifth aspect of the invention, in particular, in the rectangular casing according to any one of the first to fourth aspects of the invention, a metal heat transfer plate is provided, and the heat transfer plate is joined to a heat transfer surface. Thus, the heat conductivity of the heat transfer surface is improved, and heat can be efficiently transferred from the heat storage agent, so that the heat storage efficiency can be improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by this embodiment.

(Embodiment 1)
FIG. 1 shows a configuration diagram of a heat storage body in the first embodiment of the present invention.

  In FIG. 1, the heat transfer body 2 is formed by folding ninety nine copper meshes having a large thermal conductivity, and the frame 4 and the heat transfer surface 5 thinner than the frame 4 are integrated. A heat storage body 6 is configured by being housed together with a heat storage agent 1 such as sodium acetate trihydrate in a resin-molded rectangular casing 3. The heat transfer surface 5 is provided with a heat transfer channel 7 for performing heat exchange with the outside.

  About the heat storage body comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, when a high-temperature fluid is allowed to flow through the heat transfer passage 7 to heat the heat transfer surface 5 of the rectangular casing 3, the heat storage agent 1 in the vicinity of the heat transfer surface 5 rises in temperature and reaches a melting temperature to change from solid to liquid. . At this time, since the internal heat storage agent 1 at a distance away from the heat transfer surface 5 is also heated by the heat transfer body 2 whose shape is maintained by the frame 4 and becomes liquid, heat is transferred to the entire heat storage body 6, The agent 1 is melted and stored as latent heat.

  On the other hand, by cooling the heat transfer surface of the heat storage body 6 that stores heat by flowing a low-temperature fluid through the heat transfer flow path 7, the heat storage agent 1 in the heat storage body 6 is solidified and latent heat is generated by a phenomenon opposite to the case of heat storage. Will dissipate heat.

As described above, in the present embodiment, the heat storage body 6 is integrally formed with the heat storage agent 1, the belt-shaped heat transfer body 2 having a ninety-nine fold shape, and the frame 4 and the heat transfer surface 5 are integrally formed. By adopting a configuration in which the rectangular casing 3 is housed, the shape of the heat transfer body 2 is kept stable, and the heat storage agent 1 located inside the heat storage body 6 is efficiently heated from the heat transfer surface 5 of the rectangular casing 3. By improving the thermal conductivity of the heat storage body 6 as a whole, the heat storage agent 1 can be melted or solidified to use a large amount of heat as latent heat, and further by realizing the rectangular heat storage body 6 , Flat heat transfer flow path 7 and heat storage body 6
By using a plurality of stacked heat transfer surfaces in contact with each other, the volume ratio of the heat storage body 5 in the apparatus can be improved, and a heat storage body with high efficiency and large heat storage capacity can be realized.

(Embodiment 2)
FIG. 2 is a configuration diagram of a heat storage body according to the second embodiment of the present invention.

  In FIG. 2, a heat insulator 8 made of a vacuum heat insulating material or the like is embedded in the outer peripheral portion of the frame 4 of the square casing 3.

  About the heat storage body comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, when a plurality of heat storage bodies 6 are stacked and mounted, the adjacent heat storage bodies 6 are in contact with the frames 4 of the rectangular casing 3, but a heat insulator 8 is embedded in the frame 4. Therefore, the heat transfer between the adjacent heat storage bodies 6 can be prevented.

  As described above, in the present embodiment, the heat insulator 8 is embedded in the frame 4 to prevent heat transfer to the adjacent heat accumulator 6, and a large number of heat accumulators 6 are stacked and used. Thus, a high-capacity and highly efficient heat storage system can be realized.

(Embodiment 3)
FIG. 3 shows a configuration diagram of a heat storage body according to the third embodiment of the present invention.

  In FIG. 3, the square casing 3 is provided with a convex portion 9 on one surface of the outer periphery of the frame 4 and a concave portion 10 on the other opposite surface, and the convex portion 9 and the concave portion 10 are fitted to each other. It has a structure.

  About the heat storage body comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, when stacking and mounting the heat storage bodies 6, the adjacent heat storage bodies 6 are in contact with the frames 4 of the rectangular casing 3, but the protrusions 9 and the recesses 10 are provided on the outer periphery of the frame 4. Therefore, it can fix firmly to a predetermined position by fitting the convex part 9 and the recessed part 10 between the adjacent thermal storage bodies 6. FIG.

  As described above, in the present embodiment, the heat accumulator 6 is connected and fixed by providing the convex portion 9 and the concave portion 10 on the outer surface of the frame 4 so as to face each other, and a large number of the heat accumulators 6 are laminated. It is possible to realize a large-capacity and high-efficiency heat storage system.

(Embodiment 4)
FIG. 4 shows a configuration diagram of a heat storage body according to the fourth embodiment of the present invention.

  In FIG. 4, the square casing 3 is provided with a seal material 11 such as an O-ring, a seal groove 12 for holding the seal material 11, and a fixing hole 13, and the square casing lid 14 is provided with a protrusion 15. It is composed.

  About the heat storage body comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, the rectangular casing 3 contains the heat storage agent 1 and the heat transfer body 2 and is sealed with a rectangular casing lid 14. At this time, the projection 15 of the rectangular casing lid 14 is fixed to the rectangular casing 3. Since the rectangular casing 3 and the casing lid 14 are sealed with the sealing material 11 provided in the seal groove 12 to be press-fitted into the hole 13 and secured, airtightness is ensured.

  As described above, in the present embodiment, the rectangular casing 3 provided with the sealing groove 12 for holding the sealing material 11 and the fixing hole 13 and the projection 15 for press-fitting into the fixing hole 13 are provided. 14, the projection 15 of the square casing lid 14 is press-fitted and fixed in the fixing hole 13 of the square casing 3, and the square casing 3 and the square casing lid 14 are sealed. It is possible to improve the reliability by preventing leakage of the heat storage agent with a simple configuration.

(Embodiment 5)
FIG. 5 shows a configuration diagram of a heat storage body according to the fifth embodiment of the present invention.

  In FIG. 5, the heat transfer plate 16 is made of a metal material such as copper and is provided in close contact with the frame 4 of the square casing 3 by a bonding method such as adhesion, and is in close contact with the heat transfer body 2. The heat storage body 6 is configured.

  About the heat storage body comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, when the heat transfer plate 16 is heated from the outside, heat is transferred from the heat transfer plate 16 to the internal heat storage agent 1, but heat is also transferred to the heat storage agent 1 separated from the heat transfer plate 16 through the heat transfer body 2. be able to.

  As described above, in the present embodiment, by providing the metallic heat transfer plate 16, the heat conductivity of the heat transfer surface 5 is improved, and external heat is stored in the heat storage agent 6 inside the heat storage body 6. 1 can be transmitted efficiently.

  As described above, the heat storage body according to the present invention enables high-efficiency and large-capacity heat storage, and therefore can be applied to uses such as hot water supply, cooling, heating, drying, and industrial waste heat recovery devices.

(A) Front view of heat storage body in Embodiment 1 of the present invention (b) AA sectional view of FIG. 1 (a) (c) BB sectional view of FIG. 1 (a) The block diagram of the thermal storage body in Embodiment 2 of this invention The block diagram of the thermal storage body in Embodiment 3 of this invention The block diagram of the thermal storage body in Embodiment 4 of this invention The block diagram of the thermal storage body in Embodiment 5 of this invention (A) Configuration diagram of a conventional heat storage body (b) Configuration diagram of a water heater using a conventional heat storage body

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heat storage agent 2 Heat transfer body 3 Square casing 4 Frame 5 Heat transfer surface 6 Heat storage body 7 Heat transfer flow path 8 Heat insulator 9 Protrusion 10 Recess 11 Seal material 12 Seal groove 13 Fixing hole 14 Square casing lid 15 Protrusion 16 Transmission Hot plate

Claims (5)

A heat storage agent, a belt-shaped heat transfer body having a 99-fold shape, and a rectangular casing having at least one surface of the frame having a heat transfer function to a medium, and the heat storage agent in the rectangular casing And the heat transfer body. The heat storage body according to claim 1, wherein a heat insulator is provided on a surface that is not a heat transfer surface of the square casing. The heat storage body according to claim 1 or 2, wherein a convex portion is provided on an end surface that is not a heat transfer surface of the rectangular casing, and a concave portion is provided on the other end surface. The rectangular casing is formed by a sealing material, a member provided with a sealing groove and a fixing hole for holding the sealing material, and a lid member provided with a protrusion inserted into the fixing hole. The heat storage body of any one of 1-3. The heat storage body according to any one of claims 1 to 4, further comprising a metallic heat transfer plate, wherein the heat transfer plate is joined to a heat transfer surface.

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