JP2007147093A - Thermal storage type heat supply device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thermal storage type heat supply device capable of efficiently recovering heat in a short time. <P>SOLUTION: This heat storage type heat supply device 1 comprises a storage case 4 receiving a heat storage body 3 storing heat on the basis of state variation of solid and liquid, and a heat exchange medium 2 exchanging heat by being directly kept into contact with the heat storage body 3, having a specific gravity smaller than that of the heat storage body 3, and not mixed with the heat storage body 3. A manifold portion 6 supplying the heat exchange medium 2 to the heat storage body 3 through a plurality of supply holes 8 horizontally arranged, is disposed in the storage case 4, and a flow rate distributing mechanism 9 is disposed to distribute the heat exchange medium 2 in such manner that the heat exchange medium 2 passing through the heat storage body 3 is nearly uniformly distributed in the horizontal direction. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a heat storage type heat supply device that can store generated heat and transport heat to a remote place.

  The heat generated in factories, such as steelworks and garbage disposal sites, is used in various facilities near the factories. In addition, in the form of directly using the waste heat of the factory, the heat cannot be used when the generation of the waste heat stops, and if the exhaust heat exceeds the required amount of heat, the excess heat is wasted. Therefore, it is possible to temporarily store heat generated in the factory using a device for storing heat in a heat storage body or the like, and use the heat stored when necessary. Furthermore, by storing the heat storage body, the heat stored in a place away from the factory can be used.

  As a device for storing heat, a heat storage device that uses the latent heat of fusion of a heat storage body is known (see Patent Document 1). A storage container of the heat storage device contains a heat storage body such as erythritol and oil having a specific gravity smaller than that of the heat storage body. Since the specific gravity of oil is smaller and the oil and the heat storage body are not mixed, they are stored separately in the upper and lower sides. Pipes are disposed in the oil and the heat storage body, and connected to a heat exchanger. Oil is taken from one pipe into the heat exchanger, heat is supplied, and the oil supplied with heat is discharged from the other pipe into the heat accumulator. Since the discharged oil has a small specific gravity, it rises to the top. While rising, heat is exchanged by direct contact between the heat storage body and oil. By repeating the above operation, heat is stored in the heat storage body.

  Moreover, when recovering the heat stored in the heat storage body, oil that is not supplied with heat is discharged from a pipe disposed in the heat storage body. And while rising to the upper part, the stored heat is supplied to the rising oil by direct contact between the heat storage body and the oil. The heat stored in the heat exchanger can be utilized by recovering heat from the heat-supplied oil. By repeating the above operation, the heat stored in the heat storage body can be recovered.

JP 2005-188916

  However, when the heat storage type heat supply device described in Patent Document 1 recovers heat from the heat storage body in a state where heat is stored, heat exchange is supplied from each of a plurality of supply units located below the heat storage body. It is easy to make a difference in the flow rate of the medium. For this reason, the interface (the interface between the liquid part and the solid part) formed by the heat storage body that has recovered the heat and settled in the solid state is deposited in the lower part, and is not formed so as to spread horizontally and partially. Due to the occurrence of solidification unevenness that rapidly solidifies, there is a risk that the flow of the heat exchange medium that rises in the heat storage body is biased in the horizontal direction. In this case, since heat cannot be directly recovered from the heat accumulator in the part where the flow of the heat exchange medium is small in the heat accumulator, the heat recovery efficiency is lowered, and as a result, the heat output from the heat accumulator heat supply device is lowered. .

  In view of the above circumstances, an object of the present invention is to provide a regenerative heat supply device capable of increasing the amount of recovered heat with respect to the amount of stored heat at a constant output for a predetermined time during the heat recovery operation.

Means and effects for solving the problems

  The heat storage type heat supply device according to the present invention has the following features in order to achieve the above object. That is, the regenerative heat supply device of the present invention includes the following features alone or in combination as appropriate.

  The first feature of the heat storage type heat supply device according to the present invention for achieving the above object is that a heat storage body that stores heat by a state change between a solid and a liquid, and heat exchange by directly contacting the heat storage body, A storage container containing a heat exchange medium having a specific gravity smaller than that of the heat storage body and not mixed with the heat storage body, a supply path for supplying the heat exchange medium into the storage container, and a storage container A heat storage type heat supply device including a discharge path for discharging the heat exchange medium to the outside of the storage container, and the heat exchange medium that is provided in a lower part of the storage container and flows in from the supply path in a horizontal direction. A manifold part that is supplied into the heat storage body through a plurality of supply holes that are arranged side by side, and a state in which the heat exchange medium supplied from the manifold part passes through the heat storage body. There is further comprising a flow distribution mechanism to distribute the heat exchange medium in a horizontal direction in the equally distributed to within the storage vessel so as to approach a state that passes by the heat storage body.

  According to this configuration, the heat exchange medium supplied into the heat accumulator from the plurality of supply holes is dispersed in the horizontal direction, passes through the heat accumulator in a state of being evenly distributed in the horizontal direction, and the horizontal direction of the heat accumulator is increased. Since heat is recovered more evenly in the direction, it is possible to recover heat with less bias from the heat storage body. Therefore, a high heat recovery capability per heat storage amount can be shown at a constant output.

  A second feature of the heat storage type heat supply device according to the present invention is that the flow rate distribution mechanism includes an inflow hole through which the heat exchange medium flows through the supply path and the plurality of supply holes in the manifold portion. The flow rate of the heat exchange medium respectively supplied from the plurality of supply holes is made to be approximately equal by dispersing the heat exchange medium flowing in from the inflow holes.

  According to this configuration, the heat exchange medium flowing in from the inflow hole is dispersed in the horizontal direction in the manifold portion before being supplied to the heat storage body, and then supplied to the heat storage body at a flow rate that is evenly approached from each supply hole. Therefore, heat can be recovered from the heat accumulator with less bias. Therefore, it is possible to supply the heat exchange medium close to a state in which the heat exchange medium is evenly distributed over the entire heat storage body above the manifold portion.

  Further, a third feature of the heat storage type heat supply device according to the present invention is a perforated plate in which the flow rate distribution mechanism is arranged so as to partition the inside of the manifold portion between the inflow hole and the plurality of supply holes. That is.

  According to this configuration, since the heat exchange medium is suppressed from passing through the porous plate due to the flow resistance when passing through the porous plate from the inlet hole side to the supply hole side, the manifold on the inlet hole side partitioned by the porous plate It becomes easy to spread in the horizontal direction within the section. For this reason, the heat exchange medium that has passed through the perforated plate is supplied into the heat accumulator at a flow rate that is equally approached from each supply hole. Therefore, it is possible to supply the heat exchange medium into the heat accumulator at a flow rate that is evenly approached from each supply hole with a simple mechanism.

  A fourth feature of the heat storage type heat supply device according to the present invention is that the flow rate dispersion mechanism has a large flow path distance from an inflow hole through which the heat exchange medium flows into the manifold portion through the supply path. The plurality of supply holes are formed so that the diameter of the supply hole is larger as the supply hole is located.

  According to this configuration, a heat exchange medium with a small flow path distance from the inflow hole and a small pressure loss is supplied from a supply hole with a small hole diameter, and a heat exchange medium with a large flow path distance from the inflow hole and a large pressure loss has a hole diameter. Since the heat supply medium is supplied from the large supply hole to the heat storage body, the heat exchange medium is supplied into the heat storage body at a flow rate that is evenly approached from each supply hole. Therefore, it is possible to easily supply the heat exchange medium from each supply hole at a flow rate that is uniformly approached by adjusting the diameter of the supply hole.

  The fifth feature of the heat storage type heat supply device according to the present invention is that the manifold portion is formed as a tubular structure.

  According to this configuration, the manifold portion can be easily formed as a tubular structure that is a general-purpose structure.

  Further, a sixth feature of the heat storage type heat supply device according to the present invention is that the manifold portion is configured to connect the heat exchange medium flowing from the supply path to the plurality of supply holes via a plurality of branches. It is formed as the said tubular structure supplied in a thermal storage body.

  According to this configuration, the heat exchange medium that has flowed in from the supply path is supplied into the heat storage body from the supply holes of the manifold portion that is formed of a plurality of branched tubular structures. Can be supplied without excessively increasing the flow path distance through which the heat exchange medium flows in the tubular structure. Therefore, it is possible to efficiently supply the heat exchange medium into the heat storage body.

  A seventh feature of the heat storage type heat supply apparatus according to the present invention is that a plurality of the manifold portions are provided, and the supply path has branch paths that distribute the heat exchange medium to the plurality of manifold sections, respectively. .

  According to this configuration, the heat exchange medium is supplied to each manifold portion via the branch path, and is supplied into the heat storage body at a flow rate that is equally approached from each supply hole in each manifold portion. Therefore, compared with the case where the heat exchange medium is supplied to the entire heat storage body with one manifold part, the area where the heat exchange medium should be evenly distributed in the horizontal direction is narrowed in each manifold part. The supply can be distributed in a more uniform manner.

  Further, an eighth feature of the heat storage type heat supply device according to the present invention is that the flow rate distribution mechanism is formed as a member having a passage portion through which the heat exchange medium can pass and is disposed horizontally in the heat storage body. The heat exchange medium is a dispersion plate having high thermal conductivity in which the passage portion is formed so as to approach a state where the heat exchange medium passes through the heat storage body evenly distributed in the horizontal direction.

  According to this configuration, the heat exchange medium that rises in the heat accumulator approaches the state of being evenly distributed in the horizontal direction by passing through the dispersion plate, so that heat is generated so that the entire heat accumulator above the dispersion plate is less biased. It can be recovered. Further, the heat recovery in the horizontal direction of the heat storage body can also be performed by heat conduction in the horizontal direction by the dispersion plate. Therefore, by installing the dispersion plate, it is possible to efficiently recover heat even when there is a supply flow distribution in the horizontal direction when the heat exchange medium is supplied.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.

(First embodiment)
The regenerative heat supply device 1 according to the embodiment of the present invention is suitably used for a portable regenerative heat supply device. For example, as shown in FIG. 1, the present invention is applied to a heat transport system that transports heat when a factory 60 that generates heat and a facility 70 that uses the heat are separated from each other. The heat storage type heat supply device 1 can be attached to and detached from the heat exchangers 5a and 5b that store and release heat with respect to the heat storage type heat supply device 1, and a factory 60 and a facility 70 are provided by a transport device 50 such as a truck. Are being transported between. Here, heat storage refers to storing heat in the heat storage body, and heat dissipation refers to recovering (removing) heat stored in the heat storage body. The factory 60 is a waste incineration plant, a power plant, a steel mill, or the like, and heat generated therein is stored in the regenerative heat supply device 1 via the heat exchanger 5a. The facility 70 is a facility such as a hot water pool or a hospital, and the heat stored in the heat storage type heat supply device 1 is supplied to the temperature control facility in the facility 70 through the heat exchanger 5b. Further, the regenerative heat supply device 1 according to the embodiment of the present invention is not limited to a portable one, and is fixedly installed in the factory 60, temporarily stores heat generated in the factory, and is installed in a facility near the factory. It may be used.

  FIG. 2 is a cross-sectional view of the regenerative heat supply device according to the first embodiment of the present invention. The heat storage type heat supply device 1 includes a heat storage container 4 (storage container) in which oil 2 (heat exchange medium) and erythritol 3 (heat storage body) are accommodated, and a supply pipe that supplies the oil 2 into the heat storage container 4 7 (supply path), a discharge pipe 10 (discharge path) for discharging the oil 2 to the outside of the heat storage container 4, and the oil 2 dispersed by the perforated plate 9 (flow rate dispersion mechanism) provided inside the supply nozzle 9 ( And a manifold 6 (manifold portion) for supplying the erythritol 3 from the supply hole). The oil 2 and the erythritol 3 are not mixed with each other, and the specific gravity of the oil 2 is smaller than that of the erythritol 3, so that the oil 2 is stored in the upper layer and the erythritol 3 is stored separately in the lower layer in the heat storage container 4. It has become so. Erythritol 3 has a melting point of about 118 degrees and is solid at room temperature. By supplying the oil 2 supplied with heat using waste heat from the factory 60 into the erythritol 3 and transferring heat to the solid erythritol 3, the erythritol 3 changes its state from a solid to a liquid and is stored. It is like that. The heat storage material is not limited to erythritol 3, and sodium acetate trihydrate (melting point: 58 degrees) can also be used.

  The oil 2 is supplied into the heat storage container 4 through the supply pipe 7. The supply pipe 7 is penetrated horizontally from the side of the heat storage container 4 in the upper layer of the heat storage container 4 where the oil 2 accommodated in the heat storage container 4 is located, and the horizontal direction in the heat storage container 4 It bends in an L shape at the center, crosses the boundary surface between the oil 2 and erythritol 3 vertically, enters the erythritol 3, and is connected to a manifold 6 (manifold portion) disposed at the lower portion of the heat storage container 4. The manifold 6 is disposed horizontally with the ground surface, and can accommodate the oil 2 supplied from the supply pipe tip 7a (inflow hole) through the supply pipe 7 (supply path), and is arranged horizontally on the upper surface. The oil 2 is supplied into the erythritol 3 from a plurality of supply nozzles 8 (supply holes) having the same hole diameter. In the manifold 3, a supply pipe front end 7 a and a plurality of supply nozzles 8 are partitioned by a perforated plate 9 (flow rate dispersion mechanism).

  At the time of heat recovery, the oil 2 supplied from the manifold 6 to the liquid erythritol 3 rises in the erythritol 3 due to buoyancy. At this time, the oil 2 exchanges heat by direct contact with the erythritol 3, and the heat stored in the erythritol 3 moves to the oil 2. After the heat is recovered and the oil 2 is heated to a high temperature, the oil 2 is separated from the erythritol 3 at the upper part of the heat storage container 4 and then recovered by the oil recovery container 11 and passes through the discharge pipe 10 (discharge path) to the outside of the heat storage container 4. To be discharged. The connection port 7b of the supply pipe 7 and the connection port 10b of the discharge pipe 10 are detachably connected to the connection port of the heat exchanger 5b installed outside, and the oil 2 that has recovered heat from the erythritol 3 is a discharge pipe. After being supplied to the heat exchanger 5b through 10 and heat recovered by the heat exchanger 5b, it is supplied again into the heat storage container 4 through the supply pipe 7.

  In the heat recovery of the conventional heat storage type heat supply device, the supply flow rates of the oil 2 supplied from the plurality of supply nozzles 8 located below the erythritol 3 are not uniform, and therefore due to the occurrence of uneven solidification of the erythritol 3 There is a possibility that the flow of the oil 2 rising in the erythritol 3 is biased in the horizontal direction. In this case, since heat cannot be directly recovered from the erythritol 3 in the portion where the flow of the oil 2 is small in the erythritol 3, the heat recovery efficiency is lowered, and as a result, the heat output from the regenerative heat supply device is reduced. It was.

  FIG. 3 is a cross-sectional view showing details of a cross section of the manifold shown in FIG. In the first embodiment of the present invention, the perforated plate 9 is arranged so as to partition the inside of the manifold 6 between the supply pipe tip port 7 a and the plurality of supply nozzles 8. The perforated plate 9 can pass the oil 2 in the thickness direction, but provides a flow path resistance when the oil 2 passes through, for example, a metal plate or a honeycomb structure in which a plurality of fine holes are formed. Such as a plate. Due to the flow path resistance of the perforated plate 9, the oil 2 that has flowed in from the supply tube front end 7a is blocked by the perforated plate 9 in the manifold on the side of the supply pipe front end 7a (area indicated by A in FIG. 3). The oil 2 spreads and disperses in the horizontal direction without receiving a large pressure loss, and passes through the porous plate 9 in the thickness direction in a state where the pressure of the oil 2 is substantially equal in the horizontal direction. Thus, the oil 2 flows through the perforated plate 9 in a state of being evenly dispersed in the horizontal direction into the block B on the supply nozzle 8 side (area indicated by B in FIG. 3), and is arranged side by side in the horizontal direction. The erythritol 3 is supplied from the supply nozzles 8 of the same shape at an equal flow rate. Thus, the oil 2 supplied into the erythritol 3 rises evenly distributed in the erythritol 3 in the horizontal direction, so that occurrence of solidification unevenness and the like can be suppressed. Therefore, heat can be recovered from the erythritol 3 with less bias, and a high heat recovery capability per heat storage amount can be exhibited with a constant output. It is also possible to perform efficient heat recovery in a short time.

  As described above, in the manifold 6, the oil 2 flowing from the supply pipe front end 7 a is dispersed between the supply pipe front end 7 a and the plurality of supply nozzles 8 and supplied from the plurality of supply nozzles 8. By making the flow rate of the oil 2 close to each other evenly, the oil 2 can be supplied to the entire erythritol 3 above the manifold 6 in a state of being evenly distributed. In addition, by using the perforated plate 9 arranged so as to partition the supply pipe tip 7a and the plurality of supply nozzles 8, the oil 2 is erythritol at a flow rate approaching each of the supply nozzles 8 with a simple mechanism. 3 can be supplied.

(Second Embodiment)
Next, a heat storage type heat supply device according to a second embodiment of the present invention will be described. The regenerative heat supply device according to the second embodiment is not provided with a porous plate or the like that is a flow distribution mechanism in the manifold 6, and the first is that the hole diameters of the plurality of supply nozzles 8 formed in the manifold 6 are different. It is different from the embodiment. In addition, the same code | symbol is attached | subjected to the member same as 1st Embodiment, and the description is abbreviate | omitted.

  FIG. 4 is a cross-sectional view of a heat storage type heat supply device according to the second embodiment of the present invention. The manifold 6 is disposed horizontally with the ground surface, and can store therein the oil 2 supplied from the supply pipe tip 7a through the supply pipe 7, and has a plurality of supply nozzles 8 formed on the upper surface and having different hole diameters. To supply erythritol 3 into oil 2. The hole diameter of the supply nozzle 8 differs depending on the flow path distance from the supply pipe tip end 7a, and is formed such that the larger the flow path distance, the larger the hole diameter. Here, the flow path distance refers to the distance of the shortest path through which oil flows between two points at different positions. FIG. 5 shows the manifold 6 and the supply nozzle 8 as seen from the arrow direction of the A cross section in FIG. When the oil 2 flowing in from the supply pipe front end 7a is dispersed in the horizontal direction in the manifold 6, a part of the oil 2 flows out of the manifold 6 from the supply nozzle 8 located near the supply pipe front end 7a, thereby reducing pressure loss. It will be distributed horizontally while receiving. Further, the oil 2 receives a pressure loss due to friction with the inner wall of the manifold 6. Due to these pressure losses, the pressure of the oil 2 located far from the supply pipe front end 7a is lower than the pressure of the oil 2 located in the horizontal direction from the supply pipe front end 7a.

  In the second embodiment of the present invention, the supply nozzle 8 at a position where the flow path distance from the supply pipe front end 7a is larger than the hole diameter of the supply nozzle 8 at a position where the flow path distance from the supply pipe front end 7a is small. The hole diameter of the supply nozzle 8 changes stepwise so that the hole diameter increases. Accordingly, the supply flow rate from the supply nozzle 8 at a position where the flow path distance is small and the supply flow rate from the supply nozzle 8 at a position where the flow path distance is large are compared with the case where all the supply nozzles 8 have the same hole diameter. The difference can be reduced, and the oil 2 can be supplied from each supply nozzle 8 in a state that is closer to equality. Thus, the oil 2 supplied into the erythritol 3 rises while being distributed in the erythritol 3 at a flow rate that is nearly equal in the horizontal direction, so that the occurrence of uneven solidification can be suppressed. Therefore, heat can be recovered from the erythritol 3 with less bias, and a high heat recovery capability per heat storage amount can be exhibited with a constant output.

  As described above, by adjusting the hole diameter of each supply nozzle 8 to be larger as the flow path distance from the supply pipe distal end 7a is larger, each of the supply nozzles 8 can be easily arranged in the horizontal direction. The oil 2 can be supplied into the erythritol 3 from the supply nozzle 8 at a flow rate closer to each other.

  In the second embodiment of the present invention, the hole diameter of the supply nozzle 8 increases stepwise as the flow path distance from the supply pipe distal end 7a increases, but the flow path distance and the hole diameter are a pair. By adjusting the hole diameters of the supply nozzles 8 so as to correspond to each other, the flow rate of the oil 2 supplied from each supply nozzle 8 can be made more uniform.

(Third embodiment)
Next, a heat storage type heat supply device according to a third embodiment of the present invention will be described. The heat storage heat supply apparatus according to the third embodiment is the second in that the manifold 6 that is a manifold portion is formed of a single pipe 12 (tubular structure) having a plurality of pipe holes 13 (supply holes). It is different from the embodiment. In addition, the same code | symbol is attached | subjected to the member same as 2nd Embodiment, and the description is abbreviate | omitted.

  FIG. 6 is a cross-sectional view of a regenerative heat supply device according to the third embodiment of the present invention. The single pipe 12 is formed integrally with the supply pipe 7, penetrates the lower side surface of the heat storage container 4 in the horizontal direction, and is disposed horizontally below the ground surface at the lower part in the heat storage container 4. The single pipe 12 has a closed end, and the oil 2 is supplied into the erythritol 3 from a plurality of pipe holes 13 having different hole diameters formed in the upper part of the single pipe 12 arranged. The hole diameter of the pipe hole 13 differs depending on the flow path distance from the inflow hole 14 at the position where the oil 2 flows into the single pipe pipe 12 in the heat storage container 4. The larger the flow path distance, the larger the hole diameter. Has been. FIG. 7 shows the single pipe 12 and the pipe hole 13 in FIG. Since the oil 2 flowing in from the inflow hole 14 causes a pressure loss in the process of moving toward the closed end 12a in the single pipe 12, the pressure becomes lower as it is closer to the closed end 12a than in the vicinity of the inflow hole 14.

  In the third embodiment of the present invention, as in the second embodiment, the flow path distance from the inflow hole 14 is larger than the hole diameter of the pipe hole 13 at the position where the flow path distance from the inflow hole 14 is small. Since the plurality of pipe holes 13 are formed so that the hole diameter of the pipe hole 13 is increased, the oil 2 can be supplied from each pipe hole 13 at a flow rate that is more evenly approached. High heat recovery capability can be shown.

  As described above, since the manifold portion that can supply the oil 2 from each supply hole at a flow rate that is evenly approached can be formed using a tubular structure such as a general-purpose pipe, A complicated design is unnecessary, and the manifold portion can be formed easily.

  Moreover, the figure which looked at the tubular structure which is a modification of 3rd Embodiment of this invention from upper direction in FIG. 8 is shown. Thus, the pipe hole 13 for supplying the oil 2 may be formed, and the pipe 12 bent in the horizontal direction may be disposed as a manifold portion. In this case, the oil 2 can be supplied in a wider range.

(Fourth embodiment)
Next, a heat storage type heat supply device according to a fourth embodiment of the present invention will be described. The regenerative heat supply device according to the fourth embodiment is different from the third embodiment in that the single pipe 12 having a plurality of supply holes 13 branches into a plurality of branch pipes 15 (tubular structures). . In addition, the same code | symbol is attached | subjected to the member same as 3rd Embodiment, and the description is abbreviate | omitted.

  FIG. 9 is a view of a manifold portion including a single pipe 12 and a branch pipe 15 disposed in the lower part of the storage container of the regenerative heat supply apparatus according to the fourth embodiment of the present invention as viewed from above. The single pipe 12 is branched into four branch pipes 15 in the heat storage container 4. In the upper part of the arranged single pipe 12 and the four branched pipes 15, the hole diameter is determined by the flow path distance from the inflow hole 14 at the position where oil flows into the single pipe 12 in the heat storage container 4. A plurality of pipe holes 13 having different diameters are formed such that the hole diameter increases as the flow path distance increases. Here, the large flow path distance means that the flow path distance is large when the path through which the oil flows is branched when compared in the same branched path. Therefore, as in the third embodiment, the oil 2 can be supplied from each pipe hole 13 at a flow rate that is more evenly approached, and a high heat recovery capacity per heat storage amount can be exhibited with a constant output.

  In the fourth embodiment of the present invention, the oil 2 can be supplied to a wider area in the erythritol 3 by branching the single pipe 12 and arranging a plurality of branch pipes 15 in parallel. In this case, the flow path distance when the oil 2 flows to the end of the pipe can be reduced as compared with the case where the oil is supplied to a wide area by connecting the pipe in series without branching the path. It is possible to reduce the pressure loss of the oil 2 generated in the oil. Therefore, it is possible to efficiently supply the oil 2 into the erythritol 3.

  Further, as in the fourth embodiment of the present invention, the flow direction of the oil in the single pipe 12 before branching is not limited to the case where the flow direction of the oil 2 after branching is the same, as shown in FIG. A plurality of pipes 15 may branch from the single pipe 12 in the vertical direction.

(Fifth embodiment)
Next, a heat storage type heat supply device according to a fifth embodiment of the present invention will be described. In the heat storage type heat supply apparatus according to the fifth embodiment, the manifold 6 is divided into two, and the supply pipe 7 is branched into two branch pipes 16 and 17 (branch paths), which are different from each other. It differs from 1st Embodiment by the point which supplies the oil 2 to 19 (manifold part). In addition, the same code | symbol is attached | subjected to the member same as 1st Embodiment, and the description is abbreviate | omitted.

  FIG. 11 is a cross-sectional view of a regenerative heat supply device according to the fifth embodiment of the present invention. The supply pipe 7 is penetrated horizontally from the side of the heat storage container 4 in the upper layer of the heat storage container 4 where the oil 2 accommodated in the heat storage container 4 is located, and the horizontal direction in the heat storage container 4 It branches into two branch pipes 16 and 17 at the center, and is connected to split manifolds 18 and 19 that are arranged in two at the bottom of the heat storage container 4. Like the manifold 6 in the first embodiment, the divided manifolds 18 and 19 are provided with a porous plate 9 (flow rate dispersion mechanism) inside, and from a plurality of supply nozzles 8 (supply holes) having the same shape formed on the upper surface. Oil 2 is supplied into erythritol 3.

  In the fifth embodiment of the present invention, the heat recovery area of the erythritol 3 that is heat recovered by the oil 2 supplied from the divided manifolds 18 and 19 is limited, and the supply nozzles 8 of the divided manifolds 18 and 19 are limited in the respective heat recovery areas. The oil 2 is supplied into the erythritol 3 in a state in which the supply flow rate is made to approach evenly. The divided manifolds 18 and 19 occupy a smaller area in the lower part of the heat storage container 4 than the manifold 6 of the first embodiment, and the oil 2 supplied from the branch pipes 16 and 17 is horizontal in the divided manifolds 18 and 19. It becomes easy to disperse. Therefore, the flow rate of the oil 2 supplied from the supply nozzles 8 of the divided manifolds 18 and 19 can be dispersed in a state in which the flow rates of the oils 2 are more evenly approached in the respective heat recovery regions. Further, since the oil flowing through the supply pipe 7 is evenly distributed to the branch pipes 16 and 17 and supplied to the divided manifolds 18 and 19, the flow rate of the oil 2 supplied to the erythritol 3 from the respective divided manifolds 18 and 19. And the oil 2 can be supplied in a state of being evenly distributed throughout the erythritol 3.

  As described above, compared to the case where the oil 2 is supplied to the entire erythritol 3 with one manifold, the area where the oil 2 is evenly distributed in the horizontal direction in each of the divided manifolds 18 and 19 is narrowed. , 19 can be dispersed in a state in which the supply of the oil 2 is more evenly approached.

  The divided manifolds 18 and 19 of the fifth embodiment of the present invention may be manifolds in which the hole diameters of the supply nozzles 8 are changed as shown in the second embodiment, and are shown in the third embodiment. Such a tubular structure may be used. Moreover, it is not restricted to dividing a manifold into two, and when the area of the lower surface of the heat storage container 4 is large, it can be further divided into a plurality of parts.

(Sixth embodiment)
Next, a heat storage type heat supply device according to a sixth embodiment of the present invention will be described. In the heat storage type heat supply apparatus according to the sixth embodiment, the flow rate dispersion mechanism for dispersing the oil 2 is not in the manifold 6 but in the erythritol 3 above the plurality of passage holes 20a, 21a through which the oil 2 can pass. It differs from 1st Embodiment by the point arrange | positioned as the porous metal plates 20 and 21 (dispersion plate) which have (passage | passing part). In addition, the same code | symbol is attached | subjected to the member same as 1st Embodiment, and the description is abbreviate | omitted.

  FIG. 12 is a sectional view of a regenerative heat supply device according to the sixth embodiment of the present invention. In the erythritol 3, two porous metal plates 20 and 21 are horizontally arranged at different heights above the manifold 6. FIG. 13 shows the porous metal plate 20 viewed from the arrow direction of the B cross section in FIG. The perforated metal plate 20 is formed with a through-hole 20b through which the supply pipe 7 penetrates at the center in the horizontal direction, and a plurality of through-holes 20a are uniformly distributed around it. These passage holes 20a are formed so that oil can pass through, and are formed such that the diameter of the passage hole 20a located farther from the through hole 20b is larger. Similarly, the porous metal plate 21 has a through hole 21b and a passage hole 21a.

  At the time of heat recovery, the oil 2 is supplied into the erythritol 3 from a plurality of supply nozzles 8 having the same hole diameter formed on the upper surface of the manifold 6. Since the manifold 6 is not provided with a flow distribution mechanism, the pressure loss of the oil 2 is smaller in the manifold 6 in the vicinity of the supply pipe front end 7a, and the pressure loss of the oil 2 is increased in a position farther from the supply pipe front end 7a. . For this reason, the flow rates of the oils 2 supplied from the supply nozzles 8 are not equal to each other, and the flow rate decreases as the position is farther from the supply pipe distal end 7a. Therefore, the supplied oil 2 rises to the position of the porous metal plate 20 by buoyancy in the erythritol 3 in a state where the flow rate is unevenly distributed in the horizontal direction. Of the oil 2 supplied from the plurality of supply nozzles 8, the oil 2 that has risen to reach the portion where the through hole 20 a of the porous metal plate 20 is not formed is prevented from rising and is horizontally aligned along the porous metal plate 20. It spreads in the direction, passes through the porous metal plate 20 from the nearby passage hole 20a, and rises again. On the other hand, the oil 2 that has risen and reaches the passage hole 20a of the porous metal plate 20 passes while maintaining the flow rate of the oil 2 that is going to pass through the passage hole 20a. The excess oil 2 spreads in the horizontal direction along the porous metal plate 20 and passes through the porous metal plate 20 from the other passage holes 20a.

  In the sixth embodiment of the present invention, since the supply flow rate of the oil 2 supplied from the supply nozzle 8 located near the center in the horizontal direction of the manifold 6 is large, a part of the oil 2 at this position is caused by the porous metal plate 20. Spread and spread horizontally. Since the hole diameter of the passage hole 20a near the center of the porous metal plate 20 is small, the dispersion of the oil 2 in the horizontal direction is further promoted. At a position away from the center in the horizontal direction, the supply flow rate of the oil 2 supplied from the supply nozzle 8 is smaller than that in the vicinity of the center, and the hole diameter of the passage hole 20a is large. Rarely spread horizontally. As a result, in the erythritol 3, the oil 2 is dispersed from a region where the flow rate of the oil 2 is high to a region where the flow rate of the oil 2 is low. Similarly, the oil 2 is dispersed in the porous metal plate 21.

  As described above, the oil 2 that rises in the erythritol 3 approaches the state of being evenly distributed in the horizontal direction by passing through the porous metal plates 20, 21, and therefore in the entire erythritol 3 above the porous metal plate 20. Heat recovery is performed to reduce the bias. Moreover, since the porous metal plates 20 and 21 are metals having higher thermal conductivity than erythritol 3, heat conduction in the horizontal direction is promoted, and heat recovery is performed more evenly in the horizontal direction of erythritol 3. Therefore, by installing the perforated metal plates 20 and 21, the deviation of the flow of the oil 2 in the erythritol 3 caused by the difference in the supply flow rate of the oil 2 supplied from each supply nozzle 8 of the manifold 6 is suppressed, and a constant output is achieved. Can show a high heat recovery capacity per heat storage amount.

  In addition, it is not restricted to the case where the hole diameter of the passage hole 20a changes in the vicinity of the center of the porous metal plate 20 and the periphery thereof as in the sixth embodiment of the present invention, and all the hole diameters of the passage holes 20a may be the same. One or more porous metal plates can be installed in consideration of the height of the storage container and the like. Moreover, the metal fiber substance etc. which the oil 2 can pass between fibers can also be used as a dispersion plate.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made as long as they are described in the claims.

It is the whole heat transport system schematic diagram using the heat storage type supply device of the present invention. 1 is a cross-sectional view of a regenerative heat supply device according to a first embodiment of the present invention. It is sectional drawing of the manifold of the thermal storage type heat supply apparatus which concerns on 1st Embodiment. It is sectional drawing of the thermal storage type heat supply apparatus which concerns on 2nd Embodiment of this invention. It is A section arrow directional view of the manifold of the thermal storage type heat supply apparatus which concerns on 2nd Embodiment shown in FIG. It is sectional drawing of the thermal storage type heat supply apparatus which concerns on 3rd Embodiment of this invention. It is a figure which shows the pipe and pipe hole of the thermal storage type heat supply apparatus which concern on 3rd Embodiment shown in FIG. It is a figure which shows the modification of the manifold part of the thermal storage type heat supply apparatus which concerns on 3rd Embodiment. It is a figure which shows the manifold part of the thermal storage type heat supply apparatus which concerns on 4th Embodiment of this invention. It is a figure which shows the modification of the manifold part of the thermal storage type heat supply apparatus which concerns on 4th Embodiment. It is sectional drawing of the heat storage type heat supply apparatus which concerns on 5th Embodiment of this invention. It is sectional drawing of the thermal storage type heat supply apparatus which concerns on 6th Embodiment of this invention. It is B section arrow directional view of the porous metal plate of the thermal storage type heat supply apparatus which concerns on 6th Embodiment shown in FIG.

Explanation of symbols

1 heat storage type heat supply device 2 oil (heat exchange medium)
3 Erythritol (heat storage)
4 Heat storage container (storage container)
5b Heat exchanger (when recovering heat)
6 Manifold (manifold part)
7 Supply pipe (supply path)
8 Supply nozzle (supply hole)
9 Perforated plate (flow distribution mechanism)
10 Discharge pipe (discharge route)

Claims (8)

Storage that stores a heat storage body that stores heat by a state change between a solid and a liquid, and a heat exchange medium that exchanges heat by directly contacting the heat storage body and has a specific gravity smaller than that of the heat storage body and does not mix with the heat storage body A container,
A supply path for supplying the heat exchange medium into the storage container;
In a heat storage type heat supply device comprising a discharge path for discharging the heat exchange medium accommodated in the storage container to the outside of the storage container,
A manifold unit that is provided in a lower part of the storage container and supplies the heat exchange medium flowing from the supply path into the heat storage body through a plurality of supply holes arranged in a horizontal direction;
The state in which the heat exchange medium supplied from the manifold section passes through the heat accumulator is approximated to a state in which the heat exchange medium passes evenly in the horizontal direction in the heat accumulator. A heat storage type heat supply device comprising: a flow rate dispersion mechanism for dispersing the heat exchange medium in a container.   The flow distribution mechanism disperses the heat exchange medium flowing from the inflow hole between the inflow hole through which the heat exchange medium flows through the supply path and the plurality of supply holes in the manifold portion. Thus, the heat storage type heat supply device according to claim 1, wherein the flow rate of the heat exchange medium respectively supplied from the plurality of supply holes is made to be approximately equal.   The regenerative heat supply device according to claim 2, wherein the flow distribution mechanism is a perforated plate disposed so as to partition the inside of the manifold portion between the inflow hole and the plurality of supply holes.   The flow distribution mechanism is formed so that the diameter of the supply hole is larger in the supply hole at a position where the flow path distance from the inflow hole through which the heat exchange medium flows into the manifold portion through the supply path is larger. The regenerative heat supply device according to claim 1, wherein the heat supply type heat supply device is provided as the plurality of supply holes.   The regenerative heat supply device according to claim 4, wherein the manifold portion is formed as a tubular structure.   The manifold portion is formed as the tubular structure body that supplies the heat exchange medium flowing in from the supply path into the heat storage body from the plurality of supply holes via a plurality of branched pipes. The regenerative heat supply device according to claim 5.   The heat storage according to any one of claims 1 to 6, wherein a plurality of the manifold parts are provided, and the supply path has a branch path for distributing the heat exchange medium to the plurality of manifold parts, respectively. Type heat supply device.   The flow distribution mechanism is formed as a member having a passage portion through which the heat exchange medium can pass and is disposed horizontally in the heat storage body, and the heat exchange medium is evenly distributed in the heat storage medium in the horizontal direction. The heat storage type heat supply according to any one of claims 1 to 7, wherein the heat transfer type dispersion plate has a high thermal conductivity in which the passage portion is formed so as to be close to a passing state. apparatus.

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