KR20010048201A - Heat storage device and heating system using phase change materials - Google Patents

Abstract

PURPOSE: A thermal energy storage system and heating system utilizing phase changing material is provided, in which a plurality of thermal energy storage panels are arranged to be attachable/detachable to/from the thermal energy storage tank, to thereby allow mounting and replacement work to be easily performed and maximize heat efficiency. CONSTITUTION: A thermal energy storage system comprises an inner box(12) having an open upper portion; a thermal energy storage panel(20) made up of a metallic material and which is disposed within the inner box; diaphragms arranged in vertical and horizontal directions within the thermal energy storage panel so as to form a plurality of cells encapsulated with a thermal energy storage material; guide ribs arranged to be attachable/detachable to/from the inner box and which forms a fluid passage for heat exchange between thermal energy storage panels; a frame arranged at both ends of the thermal energy storage panel so as to be coupled to the guide rib; an outer box(11) surrounding the inner box; a heat insulation material(13) encapsulated between the inner box and the outer box; a thermal energy storage tank(10) having a cover(50) for opening/closing the inner box; an upper chamber(10a) and a lower chamber(10b) formed on the beneath the inner box and the thermal energy storage panel and which are communicated to the fluid passage; and a support plate(40) mounted in the inner box so as to support the thermal energy storage panel and which has a hole(40a) communicated to the fluid passage.

Description

Heat storage device and heating system using phase change material

The present invention relates to a heat storage device using a phase change material and a heating system thereof, and in particular, a plurality of combinations that can be detached and stored in a heat storage tank by closely arranging a plurality of heat storage panels with a latent heat storage material. It is easy to install and replace as it is composed of heat storage panel, and it is possible to maximize heat efficiency by increasing heat conductivity with increasing endothermic and heat dissipation area, and also filling the capacity of latent heat storage material below the capacity of cell and making the heat storage panel flexible. By doing so, it is possible to smoothly absorb the stress due to shrinkage / expansion of the heat storage material during heat storage and heat dissipation, and to prevent rupture, thereby achieving stability.

In addition, since a plurality of flexible heat storage panels absorb stress therefrom, the thickness of the external steel sheet of the heat storage tank can be reduced, thereby reducing the weight of the tank and manufacturing cost.

On the other hand, when a plurality of heat storage tanks are connected to the low temperature side and the high temperature side according to the type and properties of the heat storage material, the heated water or heat medium oil is sequentially supplied from the high temperature side heat storage tank to the low temperature side heat storage tank and circulated. After that, if the residual heat source or the high temperature side is below the heat storage temperature, the heat source is supplied to the low temperature side to perform heat storage to prevent heat loss and to significantly improve thermal efficiency, thereby significantly reducing the operating cost of power or fuel. And a heating system thereof.

In general, regenerative heating system is to fully fill the latent heat storage material in a heat storage tank made of a large steel sheet or to insert a capsule containing the latent heat storage material into the heat storage tank. The weight of the heat storage tank is increased so that the transport and handling of the heat storage tank is carried out. And not only easy to install, but only the surface area of the heat storage tank to use the heat radiation area, there was a disadvantage that the volume, capacity and weight of the heat storage tank has to be enlarged to cope with the required heating area.

In addition, the filling of the tank without any consideration of the physical properties of the heat storage material is filled in the tank, especially the heat storage material is excessively introduced, the heat storage tank is ruptured due to thermal deformation due to shrinkage / expansion of the heat storage material.

It is a first object of the present invention to provide a heat storage device using a phase change material and a heating system thereof so that heat radiation for heat storage and heating due to heat exchange with an external heat source is performed quickly.

It is a second object of the present invention to provide a heat storage device using a phase change material that maximizes thermal efficiency by increasing the heat storage capacity while reducing the volume of the heat storage tank and its heating system.

It is a third object of the present invention to provide a heat storage device using a phase change material that absorbs the stress of a heat storage container or a heat storage tank caused by repeated heat storage and heat dissipation of a heat storage material and prevents deformation or rupture thereof, and a heating system thereof. have.

A fourth object of the present invention is to provide a heat storage device using a phase change material and a heating system thereof, which can easily install, repair and transport a heat storage tank and replace a heat storage material.

A fifth object of the present invention is to provide a heat storage device using a phase change material and a heating system thereof which can reduce the weight of the heat storage tank and reduce the cost.

In order to achieve the above object, the present invention connects a heat storage tank insulated and an openable cover to an upper portion of the heat storage tank, and continuously installs a heat storage panel in which heat storage materials are built so as to be detachably mounted in the tank and maintain equal intervals. The heat storage material is filled in each cell while arranging a plurality of cells in each heat storage panel.

In the heat storage tank, upper chambers and lower chambers are formed above and below the heat storage panel, respectively, to receive heat from the lower chamber to receive heat from the lower chamber, and to accumulate the heat storage panel. In the upper chamber, the heat source accumulated in the heat storage panel is conducted upward. It can be used for heating or hot water.

In addition, the heat storage panel is directly bent in a concave or convex shape to absorb the stress due to thermal deformation, and the other heat radiation fin or heat sink formed on the surface to maximize the heat absorption or heat dissipation area.

As another example, the heat storage material may be embedded in the heat storage panel by indirectly encapsulating it in a fiber or resinous tube without directly filling the heat storage panel.

A plurality of heat storage tanks are provided for the construction of a heating system, and the heat storage material of these heat storage tanks is a material having a different phase change temperature, so that the heat storage tank is divided into a high / low temperature side, and a low temperature from the lower chamber of the high temperature side heat storage tank. The heat accumulating tube is connected to pass through the lower chamber of the side heat storage tank to circulate the heat medium so as to accumulate the heat storage panel.

Bypass pipe is connected to the heat storage tube located between the outlet / inlet side of the high / low temperature storage tank and the inlet side of the high temperature storage tank, and a 3-way valve is mounted on the bypass pipe. It is configured to selectively open and close the flow path to the high / low temperature side according to the temperature of the heat storage pipe, and to install a shock valve on the outlet heat storage pipe of the high temperature storage heat storage tank to prevent backflow of the heat fluid, and to store the heat storage in the lower chamber. The heat dissipation fin was formed in the tube to increase the heat source supply efficiency to the lower chamber from the heat fluid as the external heat source.

On the other hand, the heating load is connected to the heating supply pipe in the upper chamber to perform heating or hot water supply, connect the heating discharge pipe to the outlet side of the heating load and the heating load, and install a variable pump on the heating discharge pipe to recover the heating fluid. will be.

Figure 1 is a longitudinal cross-sectional view showing an embodiment of the heat storage tank of the present invention

2 is a side cross-sectional view of FIG. 1

3 is a plan cross-sectional view of FIG.

Figure 4 is a longitudinal sectional view showing an embodiment of the heat storage panel of the present invention

5 is a front view of FIG. 4

Figure 6 is a front view showing a second embodiment of the heat storage panel of the present invention

7 is a longitudinal cross-sectional view of FIG.

8 is a front view showing a third embodiment of the heat storage panel of the present invention

9 is a plan sectional view of FIG.

10 is a front view showing a fourth embodiment of the heat storage panel of the present invention

11 is a cross sectional view of FIG. 10.

12 is a front view showing a fifth embodiment of the heat storage panel of the present invention

13 is a longitudinal cross-sectional view of FIG. 12.

14 is a cross-sectional view of FIG.

15 is a longitudinal sectional view showing a second embodiment of the heat storage tank of the present invention;

16 is a side cross-sectional view of FIG. 15

17 is a cross-sectional view of FIG. 15

18 is a longitudinal cross-sectional view of the unit heat storage panel of FIG.

Figure 19 is a longitudinal sectional view showing a third embodiment of the heat storage tank of the present invention

20 is a side cross-sectional view of FIG. 19

21 is a cross-sectional view of FIG. 19

Figure 22 is a longitudinal cross-sectional view showing an embodiment of the invention heat storage tank

FIG. 23 is a side cross-sectional view of FIG. 22

24 is a cross-sectional view of FIG. 22.

25 is a longitudinal cross-sectional view of the unit heat storage panel of FIG.

FIG. 26 is a side cross-sectional view of FIG. 25

27 is a cross-sectional view of FIG. 25

Figure 28 is a longitudinal sectional view of the heat pipe for heat transfer of the heat storage tank of the present invention.

29 is an enlarged view illustrating main parts of FIG. 28;

Figure 30 is a longitudinal cross-sectional view showing a fifth embodiment of the heat storage tank of the present invention

FIG. 31 is a side cross-sectional view of FIG. 30

32 is a cross-sectional view of FIG. 30

33 is a circuit diagram showing an embodiment of the heating system of the present invention.

34 is a circuit diagram showing a second embodiment of the heating system of the present invention.

35 is a circuit diagram showing a third embodiment of the heating system of the present invention.

36 is a cross sectional view of FIG. 35.

37 is a circuit diagram showing a fourth embodiment of the heating system of the present invention.

38 is a cross sectional view of FIG. 37.

39 is a circuit diagram showing a fifth embodiment of the heating system of the present invention.

40 is a cross-sectional view of FIG. 39

<Description of the reference numerals for the main parts of the drawings>

10, 10A, 10B, 10C, 10D, 10E, 10F, 10G, 10H, 10I, 10J, 10K, 10L, 10M, 10N:

Heat storage tank

10a: upper chamber 10b: lower chamber

10E: Fluid passage 11, 11A, 11B: Outer box

11a: Boss 12, 12A, 10B: Inner Box

12a, 12b: guide ribs 13, 51, 90: insulation

20, 20A, 20B, 20C, 20D, 20E, 20F, 20G, 100: heat storage panel

21, 24: uneven 22: frame

23, 28, 30, 33: bulkhead 25, 80a: heat sink fin

26: uneven heat sink 27: cell

29: pipe 31: pad

32: heat pipe 32a, 80a: heat dissipation fin

32b: endothermic pin 32c: guide rib

40, 85: support plate 40a: through hole

50: cover 50a: flange

52: gasket 60: hinge bolt

70: nut 80: heat storage tube

80b: bypass pipe 81, 81A: heating supply pipe

82: heating load 83, 83a: heating discharge pipe

83b, 83c: coupling pipe 86: mounting bolt

87: air duct 88: hot air supply means

89: air filter 90: heat insulating material

CV ₁ , CV ₂ : 3-way valve ECU: Controller

PCM: Heat storage material S ₁ , S ₂ : Temperature sensor

V: Flow control valve V ₁ , V ₂ : Check valve

VP ₁ , VP ₂ : Variable pump W: Wall

The present invention heats the heat medium using various heat sources such as electric power, solar heat, boiler or waste heat generated during incineration or fermentation, stores heat in the heat storage medium through heat exchange with the heat medium, and then heats and heats the heat storage heat source. It provides a means to supply the necessary amount to the required place, such as a greenhouse.

In addition, the heat storage material can be easily installed or exchanged in the heat storage tank, the transport of the heat storage tank or the heat storage material is easy, and provides a means for making a safe design of the heat storage tank.

The safety of the heat storage tank absorbs the stress due to shrinkage-expansion of the heat storage material and prevents the tank from rupturing, and the safety design according to the stress absorption can reduce the steel plate thickness of the tank, thus reducing the manufacturing cost and weight of the product. To contribute.

The latent heat storage material, which is a phase change material, is made of each unit panel, and the unit panels are combined in plural to provide easy installation and easy replacement.

The heat storage heating system can be supplied to houses, apartments, factories and buildings for heating, and can be used for growing and heating greenhouses or plastic houses for crop or flower growing, and any other area requiring heating. Can be.

These heating means will be embodied in each of the following examples.

As the heat storage means, any material can be stored for a certain period of time, but C ₂₈ H ₅₈ , an organic compound, Na ₂ SO ₄ .10J ₂ O, CH ₃ COONa.3H ₂ O, CaCl Phase change materials such as ₂ .6H ₂ O, Na ₂ S ₂ O ₃ .5H ₂ O, Na ₂ CO ₃ .10J ₂ O, Na ₂ HPO ₄ .10J ₂ O, Na ₄ P ₂ O ₃ .10J ₂ O Compared with other heat storage mediums, the capacity can be relatively reduced and the handling is simple, so it is practical as a heat storage material.

These heat accumulators have melting points in the range of approximately 30 to 70 degrees Celsius, and the latent heat amount is expressed as 30 to 66 (kcal / kg). It can be practically used for heating.

Therefore, these heat storage materials can be used to store heat sources, and heat storage is performed by circulating external heat sources close to the heat storage material or at least the heat storage material, and heat exchange is carried out through the heat storage material or at least by circulating the water supply through the heat storage material. This can be used as heating water or hot water.

1 to 3, a heat storage panel 20 in which a heat storage material is sealed and filled in a heat storage tank 10 to be sealed is mounted. 10b is formed, and circulating water may be supplied through the lower chamber 10b, the upper chamber 10a, and the heat storage panel 20.

The heat storage material filled in the heat storage panel 20 is a phase change material that repeats a solid phase liquid phase in a constant temperature range during heat storage / heat dissipation. Therefore, the expansion rate (shrinkage rate) is considered because a physical change of shrinkage / expansion occurs during the phase change. Care should be taken not to overfill.

In this case, the heat storage material should allow a small amount of free space to be formed in the heat storage panel 20 in the state of having the maximum expansion in consideration of the three-dimensional displacement, or when the heat storage panel 20 is a polymer polymer or a metal having elasticity. Each displacement response method should be considered.

That is, the heat storage panel 20 is hermetically sealed, and the heat storage material is enclosed in a flexible container and put into the heat storage panel which is a metal material, or the powder or particle heat storage material is directly added to the heat storage panel which is a metal material, or in the former case. Ventilation holes may be formed in the heat storage panel to facilitate heat exchange between the fluid and the heat exchange medium.

On the other hand, contrary to the above, the heat storage material is encapsulated in a metallic container, and the heat storage material is added to the flexible heat storage panel, or the powder or particle heat storage material is directly added to the flexible heat storage panel, or the heat storage material container and the heat storage panel are used. It should be recognized that both elastic and metallic may be used.

However, this should be considered the sealing property of the heat storage material and the elasticity of the heat storage container as long as it is variable according to the required needs.

At least one of the lower chamber 10b and the upper chamber 10a is connected to an external heat source to heat the circulating water, and when the lower chamber 10b is provided with a heating means, the circulating water heated therefrom. The heat source is transferred to the upper chamber (10a) through the heat storage material to form a constant temperature of the circulating water present in the heat storage tank 10 as a whole.

The heat storage panel 20 is preferably made of metal in order to facilitate transport, handling and installation and to improve thermal conductivity, and more preferably to be made of unit copper or aluminum, and to easily calculate the amount of heat according to the heating area. In order to assemble a plurality of heat storage panel 20 continuously, a fluid passage (10E) for connecting the lower chamber (10b) and the upper chamber (10a) is formed between the heat storage panel (20).

In order to assemble the heat storage panel 20, the heat storage tank 10 is formed as an outer box 11 having a rectangular upper end and an inner box 12 having an equal interval therebetween and having an open upper end. Insulating material 13 is filled between these boxes to block the heat source from being naturally discharged to the outside, and a plurality of guide ribs 12a and 12b corresponding to the front and rear surfaces of the inner box 12 are maintained at equal intervals. It is formed continuously.

The heat storage tank 10 including the outer box 11 and the inner box 12 preferably reinforces rigidity with an appropriate thickness. ) Strength can be improved to some extent.

The heat insulating material 13 is also preferably made of a suitable thickness to suppress the heat loss and to block the amount of heat accumulated and heat generated during heat storage.

A support plate 40 is installed in a plane to form a lower chamber 10b at the lower portion of the inner box 12, and a through hole 40a communicating with the fluid passage 10E is formed in the support plate 40. The heat storage panel 20 is seated on the support plate 40 while the heat storage panel 20 is inserted from the upper side to the lower side through the guide ribs 12a and 12b, and the heat insulating material is formed on the open upper portion of the outer box 11 and the inner box 12. 51 is filled and the cover 50 with the gasket 52 attached to the bottom seals the outer box 11 and the inner box 12 and at the same time between the bottom portion and the heat storage panel 20. It is configured to form the lower chamber 10b.

A boss 11a is formed at an upper outer side of the outer box 11 to open and close the cover 50, and a plurality of hinge bolts 60 are connected to the boss 11a, and an edge portion of the cover 50 is formed. While the flange 50a is formed, the threaded portion of the hinge bolt 60 is loosely fitted through these flanges 50a, and then the nut 70 is fastened through the threaded portion of the hinge bolt 60.

The upper chamber 10a and the lower chamber 10b of the sealed heat storage tank 10 are connected at least from the outside to form a circulation cycle, and at the same time, the heated water is circulated to accumulate heat sources in the heat storage material of the heat storage panel 20. After the heat storage, the heated water of the lower chamber 10b can be taken out to be used for heating or hot water supply.

In the heat storage / heat storage of the heat storage material, as described above, a certain ratio of shrinkage / expansion occurs according to physical properties, so the shrinkage / expansion rate is considered even when designing the heat storage tank 10 as well as the heat storage panel 20 described above. Should be.

That is, the shrinkage / expansion rate at this time is not a material of the heat storage tank 10, but the heat storage material or heat storage so that the heat storage material or heat storage panel 20 is kept in a sealed state and the heat storage tank 10 is not deformed / damaged. It means that the input amount of the panel 20 is considered.

In assembling the heat storage panel 20, they are inserted downward through the guide ribs 12a and 12b between the two guide ribs 12a and 12b with the cover 50 open, and are seated on the support plate 40 and the fluid in the lower chamber 10b. When heat is heated from an external heat source, heat conducts upward along the fluid passage 10E between the heat storage panels 20 to accumulate a heat source in the heat storage material filled in the heat storage panels 20.

In addition, the fluid in the lower chamber 10b for the heat storage connects the fluid passage 10E and the upper chamber 10a. The lower chamber 10b, the fluid passage 10E, and the upper chamber 10a maintain a uniform temperature.

The heated fluid of the upper chamber 10a can be used as a heating or hot water supply by simply connecting a heating or hot water supply pipe to the chamber, and directly draws hot water in the upper chamber 10a or draws a pipeline from the chamber. Heat exchange can be performed to use hot water.

The cover 50 installed on the upper portion of the heat storage tank 10 may be opened and closed, and at least the life may be completed or the heat storage efficiency may be degraded due to repetitive phase change, or the heat storage panel 20 or the heat storage material (PCM) may be damaged. In case of providing heat storage tank 10 can be exchanged.

For example, the nut 70 of the cover opening and closing means for fixing the cover 50 to the outer box 11 is disassembled, the cover 50 is lifted upward from the hinge bolt 60, and then a predetermined heat storage panel is provided. (20) can be taken out vertically and replaced with a new heat storage panel. When the heat storage panel 20 is assembled, the heat storage panel 20 is pushed through between the guide ribs 12a and 12b on both sides of the heat storage panel 20 before and after. After the cover 50 is assembled in the reverse order of disassembly.

Some examples described below are intended to provide shrinkage / expansion of the heat storage panel 20, and their shapes are not absolute and are always variable.

This describes an example for coping with manufacturability, processability, and manufacturing cost, in particular, the endothermic and heat dissipation area of the heat storage material or the displacement of the heat storage panel.

4 and 5 are considering the shrinkage / expansion of the heat storage panel, the both sides of the heat storage panel 20A is embossed to have a continuous circular irregularities 21, the interior of the plurality of partitions (23) Is formed in the longitudinal and lateral directions to form respective cells, and at the same time, the heat storage material (PCM) is filled in the cells, and the partition 23 also has an overall uniform displacement during shrinkage / expansion of the heat storage panel 20A. At the same time to facilitate the absorption of stress to have a stability.

In addition, the concave-convex 21 of the heat storage panel 20A is intended to increase the endothermic-heat dissipation area by increasing the surface area while giving a constant rigidity, and the periphery is square so as to be slid through the guide ribs 12a and 12b. The frame 22 which has a cross section is formed.

6 and 7 consider the fluidity and processability of the fluid of the heat storage panel 20B. The unevenness 24 is formed in the vertical direction to connect the upper chamber 10a and the lower chamber 10b located vertically. The fluid passage 10E between the upper chamber 10a and the lower chamber 10b is extended and connected through a valley formed on the outside of the unevenness 24.

4, 5 and 6, 7, the unevenness 21, 24 is preferably molded so that the peak surface of the peak and the valley has a relatively small thickness in order to give shrinkage / expansion.

8 and 9 show another embodiment of the heat storage panel 20C, and heat radiating fins 25 at equal intervals are formed on the outer wall surfaces before and after the heat storage panel 20C so as to be exposed to the fluid passage 10E.

10 and 11 show another embodiment of the heat storage panel 20D, which is for maximizing a heat dissipation area of the heat storage panel 20D, and the uneven heat dissipation plate which is continuous in the longitudinal or transverse direction on the front and rear surfaces of the heat storage panel 20D. (26) is attached.

12 to 14 show another embodiment of the heat storage panel 20E, wherein a unit cell made of a tube of synthetic resin material in which a heat storage material (PCM) is sealed and filled in a panel partitioned by a plurality of partition walls 28 ( The manufacturing cost can be reduced by continuously embedding 27), and the partition wall 28 is naturally formed between the cell 27 and the cell 27.

In addition, in this case, the heat storage panel 20E is formed in the form of a porous plate or a screen in order to improve the endothermic-heat dissipation performance so that the surface of the cell 27 is exposed to the fluid passage 10E.

Here, the heat storage material (PCM) is preferably so as not to be excessively filled in the cell 27 in order to absorb the stress due to shrinkage-expansion of the cell 27.

15 to 18 are still another embodiment of the heat storage panel of the present invention, the sealed rectangular heat storage panel 20F, and the upper and lower ends thereof open to communicate with the upper chamber 10a and the lower chamber 10b. The pipes 29 made of copper or aluminum are inserted at equal intervals, and the plurality of partition walls 30 are continuously stacked at equal intervals in the vertical direction of the pipe 29 through the plurality of pipes 29. An elastic pad 31 is coupled to the side portion of each heat storage panel 20F to seal between the heat storage panel and the heat storage panel while maintaining airtightness from the fluid and absorbing the stresses of the panels.

In addition, as each cell is formed between the partition walls 30, a heat storage material (PCM) is filled in the space to maximize heat storage and heat dissipation efficiency.

On the other hand, the support plate 40 is formed on the inner lower portion of the inner box 12 is configured to support the assembly of the heat storage panel (20F).

19 to 21 are different embodiments of the heat storage tank of the present invention, in which only the heat storage panel 20F of the single unit is mounted in the inner box 12A to configure the heat storage tank 10A, and the volume of the heat storage tank 10A is shown. It can be made lighter and can reduce the installation area.

22 to 27 are to maximize the heat storage and heat dissipation efficiency by using a heat pipe, a plurality of heat pipes that are easy to transfer heat in the longitudinal direction in the middle of the rectangular sealed heat storage panel (20G) ( 32 is coupled, the partition 33 is coupled at equal intervals through the heat pipe 32 in the heat storage panel 20G, and each cell formed between the partition 33 is filled with a heat storage material (PCM). will be.

A sealing pad 31 is attached to the side surface of the heat storage panel 20G so as to be sealed from the fluid.

In addition, the heat pipes 32 are projected to the upper and lower sides of the heat storage panel 20G, and the upper and lower chambers of the heat storage tank 10 are formed by forming rectangular heat dissipation fins 32a and heat absorbing fins 32b at the upper and lower ends of the heat storage panel 20G. By exposing to 10a and the lower chamber 10b, the heat absorption to heat storage material PCM and the heat dissipation performance therefrom can be improved.

That is, the endothermic fin 32b rapidly absorbs the heat source (lower chamber) supplied from the outside and simultaneously vaporizes-elevates the volatile fluid (liquid phase <-> phase), which is a phase change material in the heat pipe 32. In this case, the heat source is rapidly and uniformly conducted to the latent heat storage material (PCM) around the heat pipe 32 by the rising volatile fluid to significantly improve the heat storage performance.

The heat dissipation fin 32a recovers heat from the heat storage material PCM and discharges it to the heating fluid in the upper chamber 10a.

The volatile fluid filled in the heat pipe 32 should be non-toxic, non-explosive, non-flammable, corrosion resistant, has a low boiling point to operate under low pressure, and preferably has a large latent heat performance in order to increase the cooling effect per unit weight.

As a medium having such characteristics, R-11, R-12, R-22, R-500, R-502, R-503, R-504, R-717, etc., which are mainly used as refrigerants, may be selected.

28 and 29 are for maximizing the performance of the heat pipe, to prevent excessive cooling of the heat storage material (PCM) while increasing the heat dissipation efficiency by suppressing a sudden drop when the volatile fluid completes heat dissipation and liquefied to fall. .

This is realized by providing a drop control means inside the heat pipe 32. For example, a spiral guide rib 32c is formed on the inner circumferential surface of the heat pipe 32 so that some volatile fluid rides on the guide rib 32c. The heat source of the entire heat storage panel 20G is uniformly maintained by the vaporizable refrigerant remaining gradually falling, thereby increasing the heat radiation efficiency while maintaining the temperature of the entire heat storage panel 20G uniformly.

The heat storage tank 10 is a heat absorbing fin of the heat pipe 32 located in the lower chamber (10b) while the fluid is heated or the heated fluid is supplied from the lower chamber (10b) during the heat storage as shown in FIGS. The heat source is absorbed in 32b), and the heat source is transferred to the refrigerant charged in the lower portion of the heat pipe 32 to expand and vaporize the refrigerant, and at the same time, heat storage for the heat storage material PCM is performed.

The heat storage operation of the heat storage material (PCM) and the refrigerant vaporization action of the heat pipe 32 proceed at the same time. At this time, as the heat storage is performed, the heat source heat accumulated from the lower portion is conducted upward while the refrigerant from the heat pipe 32 vaporizes upward. The heat source accumulation to the heat storage material (PCM) is made quickly and uniformly by the conducting heat source.

When the heating load is used after the heat storage is completed, the heat source is radiated from the upper heat dissipation fin 32a of the heat pipe 32 located in the upper chamber 10a to heat the heating water in the upper chamber 10a while the heating load can be used. Will be.

As the use of the heating load progresses, the temperature of the heating water and the heat storage material (PCM) in the upper chamber 10a decreases, thereby completing one heat storage-heat radiating cycle, and at the same time, the vaporized refrigerant of the heat pipe 32 flows into the liquid phase. As the phase changes, gravity falls downward.

The gaseous refrigerant is prevented from sudden liquefaction by the helical guide ribs 32c formed in the heat pipe 32, that is, some of the refrigerant falls into the liquefied state and some of the refrigerant is released in the liquid phase by the guide ribs 32c. While falling to the refrigerant is suppressed, the vaporized state is maintained, and most of the refrigerant falling down flows downward along the spiral guide ribs 32c to uniformly conduct the heat source of the heat storage material (PCM) to prevent rapid temperature drop. At the same time, the heat dissipation efficiency from the heat storage material (PCM) is increased.

Furthermore, the heat source transmitted through the heat pipe 32 to the heat dissipation fin 32a at the upper end thereof receives the fluid (medium which is directly heat exchanged to obtain heating or hot water) in the upper chamber 10a of the heat storage tank 10. It also provides the advantage of heating more quickly and efficiently.

30 to 32 provide a more compact and thinner heat storage tank 10B, which is a rectangular sealed inner box 12B and an outer box 11B, and a heat insulating material 13 is filled between these boxes. In the inner box 12B, the heat storage panel 20G as described above is mounted as one unit unit. In this case, the installation area of the heat storage tank 10B is also the same as in the embodiment of FIGS. 19 to 21. Can be greatly reduced.

The shape of the heat storage tank and the heat storage panel in each of the embodiments described above is not limited, and modifications and changes can be made by those skilled in the art as necessary, and it should be understood that they are also included in the scope of the present invention.

The above-described heat storage tanks can be used independently. In particular, when a plurality of heat storage tanks are connected to the low temperature side and the high temperature side according to the type and properties of the heat storage material, the heated water or the heat medium oil is low temperature from the high temperature side heat storage tank. When supplying and circulating sequentially to the side heat storage tank, if the residual heat source on the high temperature side is stored or if the high temperature side is below the heat storage temperature (heat storage possible temperature), this heat source is supplied from the low temperature side to prevent heat loss. At the same time, the thermal efficiency can be greatly improved, which significantly reduces the operating costs of power and fuel.

Of course, if waste heat generated from incinerators, waste wood, waste paper, waste oil or waste plastic is used as a heat storage source, fuel costs are not required separately and the operation cost will be greatly reduced.

The latent heat storage material filled in the heat storage tank will take a relatively large amount and increase in weight due to its characteristics, but in this case, it is not easy to transport the heat storage tank. Therefore, the heat storage tank may be installed at a predetermined place and then described above. It is preferable to assemble the same heat storage panel in the heat storage tank.

In general, in order to transport the heat storage tank and the heat storage material separately and to put the heat storage material in the heat storage tank, the heat storage material was put in a separate bag or container, but as described in the above section, And shrinkage / expansion rate at the time of heat dissipation, there is a frequent problem that the heat storage container is damaged when the heat storage tank is operated.

In the present invention, by actively responding to the physical properties of the heat storage material, the heat storage container is damaged or the resulting heat storage performance is reduced and the heat storage material replacement requirement is described below.

The latent heat storage material applied in the present invention is not uneconomical even when using a relatively large amount, and provides a significant savings in operating costs as well as heating (at least incomparable) compared to any other type of heating equipment. In terms of efficiency or heating effect, it offers other great advantages.

As an example, the latent heat storage material of the present invention may mainly use those shown in the following table, which indicates respective physical properties according to the type of heat storage material.

Physical properties of phase change latent heat storage materials Latent heat storage material (PCM) Melting Point (℃) Latent heat (kcal / kg) Molecular weight Specific heat (kcal / kg ℃) Specific gravity (kg / m ³ ) Thermal conductivity (W / m ℃) solid Liquid solid Liquid solid Liquid C ₂₈ H ₅₈ 60.7 60.6 394.744 0.48 0.60 800 775 0.17 0.16 Na ₂ SO ₄ · 10J ₂ O 32.0 60.5 0.46 0.78 1460 1330 0.54 0.81 CH ₃ COONa3H ₂ O 57.4 51.1 136.081 0.49 0.82 1450 1250 0.55 0.70 NPG 39.0 28.0 0.46 995 CaCl ₂ · 6H ₂ O 29.6 45.6 _{Na 2 S 2 O 3 · 5H} 2 O 48.5 48.0 Na ₂ CO ₃ · 10J ₂ O 33.0 59.0 Na ₂ HPO ₄ · 10J ₂ O 42.6 66.8 _{Na 4 P 2 O 3 · 10J} 2 O 70.0 44.0

As shown in Table 1, the latent heat storage material, which is a heating medium, has a drawback in that its weight and volume are larger than a non-heat storage type heating device in order to obtain a normal heating amount. There is something not easy.

Therefore, the volume and weight of the heat storage material container, the heat storage tank and the heat storage material must be taken into consideration in order to easily transport, handle and assemble the heat storage material and to prevent damage to the heat storage material container or the heat storage tank due to shrinkage / expansion of the heat storage material. In addition, the required heating area, the type of heat storage material and its capacity must be accurately calculated.

For example see the required amount thermal storage material for heating, (requires more than the usual per square meter 3125kcal calories) the phase change material is C ₂₈ H ₅₈ latent heat storage material heat the interior area of 10 square meters House, considered if C ₂₈ H ₅₈ in Table 1 The heat storage temperature of is 60.7 ℃ and the latent heat capacity (unit calorific value) is 60.6kcal / kg, so the total heating calorie is 31,250kcal / kg, but it is desirable to have a little more margin than the heating calorie. When the total heating calories are divided into unit calories, the weight of the heat storage material is about 577 kg.

In addition, the volume (volume) of the same heat storage material is 800kg / m ³ for specific gravity (solid heat storage) and 775kg / m ³ for liquid (heat dissipation) in Table 1, so the volumetric deformation rate according to the phase change from liquid phase to solid phase is It is increased to 3.125, wherein the required weight of the heat storage material required for heating heat required is 577 kg and the unit weight of the heat storage material in the solid state is 800 kg / m ^3, so these weight ratios are 577 kg: 800 kg = 0.72: 1.

In addition, the unit volume with respect to the unit weight of the heat storage material is 1m ³ (1000ℓ), the ratio between the required volume (χ) of the heat storage material and the unit volume of the heat storage material is 0.72m ³ : 1m ³ = χ: 1000, so the overall required volume of the heat storage material is It is estimated to be 720ℓ, but it is desirable to design the required amount to 756ℓ by increasing and correcting from 3.125 to about 5 to make the volumetric strain of the heat storage material safer.

In this way, the total requirement of the heat storage material is 577kg / 756ℓ = 577kg / 0.756m ³ = 436kg / m ³ in heating a single-family house of 10 pyeong with C ₂₈ H ₅₈ heat storage material.

In general, single-family homes require 3,125 kcals of heat per square foot, but apartments and buildings require less heat than 2,140 kcals, and heating costs are significantly reduced compared to single-family homes. This may increase slightly, but in the long run it can significantly reduce operating costs.

Capacity calculation of the heat storage material is not only essential for calculating the heating area, but ultimately plays a decisive role in setting the size, size and weight of the heat storage tank, and further provides a foundation for safely designing the heat storage tank. .

In addition, it is possible to manufacture an optimal heat storage tank suitable for the heating area, and to prevent unnecessary heat storage tanks and waste of heat storage material from the design point of the system. Having a weight improves the transport, handling, installation and maintenance of the product.

In fact, the safe design of the regenerated tank will not be as important as the maintenance of the regenerator during the life of the regenerator, as well as maintaining its durability against the risk of breakage.

Conventional regenerative heating devices have at least the types and properties of heat storage material according to the heating area and heating heat mentioned above, their capacity and heat storage capacity, transportation, handling, assembly, installation and maintenance of heat storage tank, volume and weight of heat storage tank, In particular, no consideration was given to the safety of the heat storage tank according to the shrinkage / expansion rate of the latent heat storage material, which is a phase change material, and the complex correlations thereof. It is not possible to deny that it has been subjected to a passive and obsolete manufacturing method of enclosing and then conducting a heating test similar to the actual one, adding or subtracting the capacity of the heat storage material or the size of the heat storage tank as necessary, or designing the heating by repeated trial and error.

This was due to the fact that the latent heat storage material (which cannot be used as it was), which had been long ago, only relied on expensive fossil fuels, at least due to the complex application of the heat storage material and the heat storage tank and the special properties of the heat storage material. It was one cause that had avoided the development of regenerative heating systems.

In view of this, the present inventors have attempted to solve the difficulty according to the design of the heat storage heating system by analyzing the volume displacement of the heat storage material and the heat storage / heat dissipation and its complex phase change characteristics according to the temperature.

Table 2 below shows the required capacity of the heat storage material in the case of heating about 10 pyeong based on the calculation method of the heating and heat storage amount and its capacity.

Heat storage capacity of main latent heat storage material according to heating area (based on 35,000kcal) Latent heat storage material Required weight (kg) Volume (m ³ ) Heat storage tank volume (m ³ ) (5 volume increase rate) C ₂₈ h ₅₈ 577.56 0.722 0.758 Na ₂ SO ₄ · 10J ₂ O 578.51 0.396 0.415 CH ₃ COONa3H ₂ O 684.93 0.472 0.495 NPG 1250 1.256 1.318

As shown in Table 2, since the weight of the heat storage material required for heating of 10 pyeong is different depending on the type, but the overall weight is heavy, the thickness of the heat storage tank to at least a few millimeters in order to prevent the burst during the production of the heat storage tank In order to prevent heat loss and unnecessary heat loss to the outside, at least tens of millimeters of insulation is preferably installed as described above.

The preferred embodiment of the heating, hot water supply according to the use of the heat storage tank in combination and using the heat source will be described.

Example 1

A heating system in which a plurality of heat storage tanks are sequentially or selectively regenerated by receiving a heat source from the outside, and the heat / hot water supply is used by heat-exchanging the heat storage heat sources again, FIGS. 1 to 3 and 15 to 17. 33, a plurality of identical heat storage tanks, preferably the primary storage heat storage tank 10C on the high temperature side and the secondary storage heat storage tank 10D on the low temperature side (does not mean that the temperature is low, but is the primary storage heat storage tank 10C). The heat storage tube 80 for circulating the heat medium oil heated from an external heat source of electric power, boiler, or other waste heat is the lower chamber 10b of the primary heat storage tank 10C. ) Through the lower chamber (10b) of the secondary heat storage tank (10D), the variable pump (VP ₁ ) is installed at the inlet or outlet side of the heat storage pipe (80) through the heat storage tank (10C, 10D) The heat storage tanks (10C, 10D) Periphery of the heat storage tube 80 to heat the fluid filled in each lower chamber 10b of the heat storage tube 80 from the heat storage tube 80, and increase the heat radiation of the heat storage tube 80 to the fluid of the lower chamber 10b. The heat radiation fins 80a are formed in the lower chamber 10b.

The heating supply pipe 81 is connected to the upper chamber 10a of the primary side heat storage tank 10C, and the heating supply pipe 81 is a heating load including a heating pipeline, a boiler, a hot water supply line or an air conditioner or at least two of them. The outlet side of the heating load 82 is branched to the lower chamber 10b of the primary and secondary heat storage tanks 10C and 10D by the heating discharge pipes 83 and 83a, and the heating discharge pipe ( The variable pump VP ₂ is installed before the 83 and 83a to circulate the fluid for heating.

In order to provide the heat storage control means of the heating system, a heat valve (V ₁ ) is connected to the heat storage pipe (80) located between both heat storage tanks (10C, 10D), and passes through the secondary heat storage tank (10D). To prevent a significant backflow, connect a three-way valve (CV ₁ ) between the in-line and the out-line of the heat storage pipe (80), that is, at a predetermined position of the in-line, ₁ ) The inlet-side heat storage pipe 80 between the point passing through and the secondary heat storage tank 10D is connected to the three-way valve CV ₁ with a bypass pipe 80b, and at least the heat storage tanks 10C and 10D. While connecting the temperature sensor (S ₁ ) to the heat storage tube (80) to be located at the inlet of these temperature sensor (S ₁ ) and the three-way valve (CV ₁ ) and the variable pump (VP ₁ ) are electrically connected to each other.

In order to provide a heating control means, the flow rate adjustment valve (V) is installed in the heating supply pipe (81) so that the user can adjust the amount of heating water supply, at least in the initial position of the heating discharge pipe (83) of the variable pump (VP ₂ ) It is possible to detect the temperature of the circulating fluid completed heating by connecting the temperature sensor (S ₂ ) previously, the upper chamber (10a) and the heating discharge pipe (83) of the secondary heat storage tank (10D) coupling pipe (83b) The valve V ₂ is connected to the coupling pipe 83b to prevent the fluid of the heating discharge pipe 83 from flowing back into the upper chamber 10a of the secondary heat storage tank 10D.

-When accumulating-

As the heat medium oil heated by the external heat source is circulated along the heat storage tube 80 by the driving of the variable pump VP ₁ , the heat radiation fins 80a of the heat storage tube 80 transfer the heat source of the heat medium oil to the heat storage tanks 10C and 10D. Heat exchange is performed in the lower chamber 10b, and the heat source of the heated fluid in the lower chamber 10b is formed in the heat storage panel 100 and the fluid passage 10c formed therebetween as shown in FIGS. 1 to 3 and 15 to 17. Heat is accumulated in the heat storage material (PCM) filled in the heat storage panel 100 while being conducted upward by convection along the).

Here, the three-way valve CV ₁ in the heat storage process is kept closed until the heat medium oil of the heat storage tube 80 reaches a constant temperature value, and the temperature of the heat medium oil detected by the temperature sensor S ₁ is a set value. When is reached, the variable pump VP ₁ and the three-way valve CV ₁ are opened by the controller ECU to perform heat storage.

The opening and closing of the flow path of the three-way valve CV ₁ has a temperature of the heat storage pipe 80 that is higher than the heat storage temperature of the primary heat storage tank 10C according to the set temperature value (phase change temperature of the heat storage material) of the heat storage tanks 10C and 10D. If higher or equal, the three-way valve CV ₁ opens to the primary side heat storage tank 10C and heats all the high / secondary heat storage tanks 10C and 10D, and the temperature of the heat storage pipe 80 is the primary heat storage tank ( If it is lower than the heat storage temperature of 10C), the three-way valve CV ₁ is opened to the secondary heat storage tank 10D to heat only this heat storage tank 10D.

In the former case, the primary heat storage tank 10C is thermally stored or after the heat storage is completed, the secondary heat storage tank 10D is thermally stored using the remaining heat. In the latter case, only the secondary heat storage tank 10D is used. To accumulate.

For example, when the set temperature range of the primary side heat storage tank 10C is 60 to 80 degrees Celsius and the set temperature range of the secondary side heat storage tank 10D is 30 to 40 degrees Celsius, the current heat storage tank 10C If the heat storage temperature is higher than or equal to 80 ° C, the heat storage tank 10C on the primary side may be considered to have completed heat storage, and thus the heat storage thereafter is conducted to the secondary heat storage tank 10D and thus secondary heat storage. Will be done.

Alternatively, if the temperature of the heat storage tube 80 is lower than the heat storage temperature of 60 ° C of the primary heat storage tank 10C and higher than the heat storage temperature of 30 ° C of the secondary heat storage tank 10D. The heat source will accumulate only the heat storage tank 10D on the secondary side by the three-way valve CV ₁ .

In this case, the secondary heat storage tank 10D is very valuable and utilizes the heat amount discarded in the primary heat storage tank 10C which is not available at all, and heat storage is performed more quickly.

-Heat dissipation (heating)-

The regenerated heat source can be used for indoor heating, hot water supply, heating for crop cultivation in a greenhouse, and the like. The upper chamber 10a of the heat storage tanks 10C and 10D is driven by a variable pump VP ₂ . The heated fluid is supplied to the heating load 82 (heating pipeline, hot water supply line, air conditioner, etc.) along the heating supply pipe 81 to realize heating, and the completed circulating fluid is a heating discharge pipe 83 ) To the primary heat storage tank (10C) along the variable pump (VP ₂ ) and three-way valve (CV ₂ ), or to the low / primary storage heat storage tanks (10D, 10C) through the three-way valve (CV ₂ ). Recovered sequentially.

Here, the temperature sensor (S ₂ ) during the heat dissipation process senses the temperature of the fluid in the heating discharge pipe (83) and if the temperature is lower than the secondary side heat storage tank (10D) by the controller (ECU) three-way valve (CV ₂ ) The fluid is returned to the lower chamber 10b of the secondary heat storage tank 10D by opening toward the heating discharge pipe 83a, and the recovered fluid is again returned to the lower chamber 10b, the upper chamber 10a, and the coupling pipe ( 83b), it is recovered to the lower chamber 10b of the primary heat storage tank 10C through the check valve V ₂ and the heating discharge pipe 83.

On the contrary, if the temperature of the fluid in the heating discharge pipe 83 is higher than or equal to the secondary storage heat storage tank 10D, the controller ECU opens the three-way valve CV ₂ to the heating discharge pipe 83 to open the fluid in the primary storage heat storage tank. It recovers to the lower chamber 10b of 10C.

As such, after the heating is completed and the fluid recovered is sequentially recovered to the secondary / primary-side heat storage tanks 10D and 10C or only to the primary-side heat storage tank 10C, the temperature of the fluid recovered from the heating load 82 may be reduced. Is recovered directly to the primary storage tank (10C) in a lower state than the secondary storage tank (10D) at this time will cause the heat loss by cooling the relatively high heat remaining in the primary storage tank (10C) unnecessarily. On the contrary, if the temperature of the fluid recovered is higher than the secondary heat storage tank 10D and the liquid is recovered to the primary heat storage tank 10C via the secondary heat storage tank 10D, the secondary heat storage tank 10D is also used for the same reason. This is because, of course, the amount of heat remaining in the heat storage tank 10C on the primary side will be cooled to cause heat loss.

Example 2

Similar to the case of Example 1, but here the heat storage tank using a heat pipe is more simplified in structure, to maximize the heat absorption (heat storage) and heat dissipation (heating) performance.

That is, as shown in FIGS. 22 to 24 and 34, the heat radiation fins 32a and the heat absorbing fins 32b of the heat pipes 32 in the upper chamber 10a and the lower chamber 10b of the heat storage tanks 10E and 10F. ) Are respectively located, and the heat storage tube 80 does not pass through the secondary heat storage tank 10F from the primary heat storage tank 10E, but the heat storage tube 80 is a lower chamber of the heat storage tanks 10E and 10F. Connected to both ends thereof in communication with (10b).

In the same manner, the heating supply pipe 81A is connected to communicate with the outlet side of the upper chamber 10a of the heat storage tank 10E and the inlet side of the heating load 82, and the heating discharge pipe 83A is connected to the heat storage tanks 10E and 10F. The primary heat storage tank 10E communicates with the upper chamber 10a of the heating chamber after the heating is completed and is recovered directly via the upper chamber 10a of the secondary heat storage tank 10F without selective distribution to the heat storage tank. Flows into the upper chamber 10a.

Therefore, the three-way valve CV ₂ of the heating discharge pipe 83a, the coupling pipe 83b, and the heating discharge pipe 83, as in the _{first embodiment} , is removed, thereby simplifying the structure of the pipeline.

-When accumulating-

As the heat medium oil heated by the external heat source is circulated along the heat storage tube 80 by the driving of the variable pump VP ₁ , the heat storage tube 80 passes the heat medium oil to the lower chamber 10b of the heat storage tanks 10E and 10F. Heat is supplied to the heat absorbing fins 32b of the heat pipe 32, and the heat source of the heated fluid in the lower chamber 10b is expanded and vaporized in the refrigerant gas of the heat pipe 32 of the heat storage panels 100 upward. The heat conduction is made upward to accumulate a heat source in the heat storage material (PCM) filled in the heat storage panel (100).

Here, the three-way valve CV ₁ during the heat storage process is kept closed until the heat medium oil of the heat storage tube 80 reaches a constant temperature value, and when the temperature of the heat medium oil reaches the set value, the variable pump VP ₁ and The three-way valve CV ₁ is opened to perform heat storage.

The opening and closing of the flow path of the three-way valve CV ₁ is characterized in that the temperature of the heat storage pipe 80 is higher than the heat storage temperature of the primary heat storage tank 10E according to the set temperature value (phase change temperature of the heat storage material) of the heat storage tanks 10E and 10F. If higher or equal, the three-way valve CV ₁ opens to the primary side heat storage tank 10E and heats all of the 1/2 side heat storage tanks 10E and 10F, and the temperature of the heat storage pipe 80 is the primary heat storage tank ( If it is lower than the heat storage temperature of 10E), the three-way valve CV ₁ is opened to the secondary heat storage tank 10F to heat only this heat storage tank 10F.

In the former case, the primary heat storage tank 10E is thermally stored or after the heat storage is completed, the secondary heat storage tank 10F is thermally stored using the remaining heat. In the latter case, only the secondary heat storage tank 10F is stored. To accumulate.

For example, when the set temperature range of the primary side heat storage tank 10E is 60 to 80 degrees Celsius and the set temperature range of the secondary side heat storage tank 10F is 30 to 40 degrees Celsius, the current heat storage tank 10E If the stored heat storage temperature is 80 (° C) or higher, the heat storage tank 10E on the primary side may be regarded as having completed heat storage, and thus the heat storage thereafter is conducted to the secondary heat storage tank 10F and thus secondary heat storage. Will be done.

Alternatively, if the temperature of the heat storage tube 80 is lower than the heat storage temperature of 60 ° C of the primary heat storage tank 10E and higher than the heat storage temperature of 30 ° C of the secondary heat storage tank 10F. The heat source will only accumulate the heat storage tank 10F on the secondary side by the three-way valve CV ₁ .

In this case, the secondary heat storage tank 10F is used very valuablely by using the amount of heat that is not available at all in the primary heat storage tank 10E, and the heat storage is made faster.

Thus, the completion of heating and recovering the recovered fluid to the secondary primary storage tank (10F, 10E) sequentially, the temperature of the fluid recovered from the heating load 82 is directly lower than the secondary storage heat storage tank (10F) This is because if the primary heat storage tank 10E is recovered, the relatively high amount of heat remaining in the primary heat storage tank 10E is unnecessarily cooled to cause heat loss.

Heat dissipation (heating)

The regenerated heat source can be used for various types of heating or hot water supply. The fluid heated from the upper chambers 10a and 10b of the heat storage tanks 10E and 10F is driven by a variable pump VP ₂ . The heating fluid is supplied to the heating load along the heating supply pipe 81A to realize heating, and the completed circulating fluid is supplied to the secondary storage heat storage tank 10F and the primary storage heat storage tank through the heating discharge pipe 83A and the variable pump VP ₂ . It is recovered sequentially along (10E).

Example 3

By arranging a plurality of heat storage tanks and fixing them to a wall, a plurality of heat storage tanks are used as the primary side and other heat storage tanks as the secondary side, thereby improving the heat storage and heat dissipation performance while reducing the installation space.

18 to 21 and 35 and 36, a plurality of heat storage tanks, preferably a plurality of primary side heat storage tanks 10G, 10H having the same structure, and a plurality of secondary side heat storage tanks 10I, 10J. Is provided, and the heat storage tube (80) for circulating the heat medium oil heated from an external heat source of electric power, a boiler, or other waste heat is discharged from the lower chamber (10b) of the primary heat storage tanks (10G, 10H). 10J) through the lower chamber 10b, the variable pump (VP ₁ ) is installed at the inlet or outlet side of the heat storage tube 80 to pump the heat medium oil through the heat storage tank (10G, 10H, 10I, 10J). At the same time, the fluid filled in each lower chamber 10b of these heat storage tanks 10G, 10H, 10I, and 10J is heated from the heat storage tube 80, and the heat storage tube 80 for the fluid of the lower chamber 10b is heated. The heat radiation fins 80a are formed around the heat storage tube 80 so as to increase the amount of heat radiation in the lower chamber 10b.

The heating supply pipe 81 is connected to the upper chamber 10a of the primary side heat storage tank 10G, and the heating supply pipe 81 is a heating load including a heating pipeline, a boiler, a hot water supply line, or an air conditioner or at least two of them. And the outlet side of the heating load 82 to the lower chamber 10b of the primary side heat storage tanks 10G and 10H and the secondary side heat storage tanks 10I and 10J as heating discharge pipes 83 and 83a. Each branch is connected, but the variable discharge pump (VP ₂ ) is installed before the heating discharge pipe (83, 83a) is configured to circulate the fluid for heating.

In order to provide the heat storage control means of the heating system, a check valve V ₁ is connected to the heat storage pipe 80 positioned between the heat storage tanks 10H and 10I on both sides, and passes through the secondary heat storage tanks 10I and 10J. To prevent backflow of the heat medium oil, and connect the three-way valve CV ₁ between the in-line and the out-line of the heat storage tube 80, that is, at a predetermined position of the in-line, The inlet-side heat storage pipe 80 between the point passing through (V ₁ ) and the secondary heat storage tank 10I is connected to the three-way valve CV ₁ with a bypass pipe 80b.

In order to provide a heating control means, a flow rate adjusting valve (V) is installed in the heating supply pipe (81) so that the user can adjust the amount of heating water, and the upper chamber (10a) and the heating discharge pipe (10) of the secondary heat storage tank (10I) 83 is connected to the coupling pipe 83b, and the check valve V ₂ is connected to the coupling pipe 83b so that the fluid of the heating discharge pipe 83 flows back to the upper chamber 10a of the heat storage tank 10I. Prevent it.

The lower chamber 10b of the primary side heat storage tank 10G and the upper chamber 10a of the primary side heat storage tank 10H are connected to the coupling pipe 83c, respectively.

In addition, in order to provide the installation means of the heat storage tank (10G, 10H, 10I, 10J), there is provided a support plate 85 in close contact with both ends of the outer box (11A), through the support plate 85 to the wall Mounting bolt 86 is fastened to provide a fixing means of the heat storage tank, the heat insulating material 90 is pressed between the heat storage tank (10G, 10H, 10I, 10J).

Unexplained symbol W represents a wall.

-When accumulating-

As the heat medium oil heated by the external heat source is circulated along the heat storage tube 80 by the driving of the variable pump VP ₁ , the heat radiation fins 80a of the heat storage tube 80 transfer the heat source of the heat medium oil to the heat storage tanks 10G, 10H, and 10I. And heat exchange in the lower chamber 10b of 10J, and the heat source of the heated fluid in the lower chamber 10b is conducted upwardly by convection along the heat storage panels 100 and the pipe 29 formed therebetween. While accumulating heat sources in the heat storage material (PCM) of the heat storage panel (100).

Here, the three-way valve CV ₁ during the heat storage process is kept closed until the heat medium oil of the heat storage tube 80 reaches a constant temperature value, and when the temperature of the heat medium oil reaches the set value, the controller (not shown) By this, the variable pump VP ₁ and the three-way valve CV ₁ are opened to perform heat storage.

The opening and closing of the flow path of the three-way valve CV ₁ is based on the set temperature value (phase change temperature of the heat storage material) of the heat storage tanks 10G, 10H, 10I, and 10J. If it is higher than or equal to the heat storage temperature of 10H), the three-way valve CV ₁ opens to the primary heat storage tanks 10G and 10H to accumulate all of the high / secondary heat storage tanks 10G, 10H, 10I, and 10J. If the temperature of the pipe 80 is lower than the heat storage temperature of the primary heat storage tanks 10G and 10H, the three-way valve CV ₁ is opened to the secondary side to heat only the heat storage tanks 10I and 10J.

In the former case, the primary heat storage tanks 10G and 10H are thermally stored or after the heat storage is completed, the secondary heat storage tanks 10I and 10J are thermally stored. In the latter case, the secondary heat storage tanks are stored. It only heats up (10I, 10J).

For example, when the set temperature range of the primary side heat storage tanks 10G and 10H is 60 to 80 ° C and the set temperature range of the secondary side heat storage tanks 10I and 10J is 30 to 40 ° C. If the heat storage temperature stored at (10G, 10H) is 80 (° C) or higher, the heat storage tanks 10G and 10H on the primary side may be considered to have completed heat storage, and thus the heat storage thereafter is the secondary heat storage tank 10I. , 10J) to conduct secondary heat storage.

Alternatively, if the temperature of the heat storage tube 80 is lower than the heat storage temperature of 60 ° C of the primary heat storage tanks 10G and 10H and higher than the heat storage temperature of 30 ° C of the secondary heat storage tanks 10I and 10J. The heat source of 80 will heat only the heat storage tanks 10I and 10J on the secondary side by the three-way valve CV ₁ .

In this case, the secondary heat storage tanks 10I and 10J use the amount of waste heat that is not available at all in the primary heat storage tanks 10G and 10H very usefully, and the heat storage is also faster.

-Heat dissipation (heating)-

The regenerated heat source can be used to heat the indoor heating, hot water supply, heating for crop cultivation in the greenhouse, and the like. The heat storage tank 10G, 10H, 10I, 10J is driven by the variable pump VP ₂ . The fluid heated from the upper chambers 10a and 10b of the air is supplied to the heating load 82 such as a heating pipeline, a hot water supply line, and an air conditioner along the heating supply pipe 81 to realize heating and complete the heating. The fluid flows into the primary heat storage tanks 10G and 10H along the heating discharge pipe 83, the variable pump VP ₂ and the three-way valve CV ₂ , or through the three-way valve CV ₂ . The heat storage tanks 10J, 10I, 10H, and 10G are sequentially recovered.

If the temperature of the heating discharge pipe 83 is lower than the secondary storage heat storage tanks 10I and 10J during the heat dissipation process, the controller (not shown) opens the three-way valve CV ₂ toward the heating discharge pipe 83a to open the fluid. Recovered to the lower chamber (10b) of the secondary heat storage tank (10J), and the recovered fluid is again from the lower chamber (10b) to the upper chamber (10a), from the upper chamber (10a) to the coupling pipe (84). Along the lower chamber 10b and the upper chamber 10a of the heat storage tank 10I through the coupling pipe 83b and the heating discharge pipe 83 from the upper chamber 10a. The lower chamber 10b and the upper chamber 10a, and from the upper chamber 10a to the lower chamber 10b and the upper chamber 10a of the heat storage tank 10G through the coupling pipe 84 are recovered in this order. .

In particular, since the heating fluid is recovered while repeatedly raising and lowering, the cooling rate and calorie consumption of the heat storage tanks 10G, 10H, 10I, and 10J are not sudden, so that the heat can be maintained for a long time during heating after heat storage.

In addition, the heat storage tank (10G, 10H, 10I, 10J) is installed on the wall has a feature that the installation space is greatly reduced.

On the contrary, if the temperature of the fluid in the heating discharge pipe 83 is higher than or equal to the secondary storage heat storage tank 10J, the three-way valve CV ₂ is opened to the heating discharge pipe 83 by a controller (not shown), whereby the fluid is 2 The primary heat storage tanks 10H and 10G are recovered directly without passing through the primary heat storage tanks 10J and 10I.

As such, the completion of heating and recovery of the fluid recovered in the secondary / primary storage heat storage tanks 10J, 10I, 10H, and 10G or the recovery of only the primary storage heat storage tanks 10H and 10G may be performed. If the temperature of the fluid recovered from the heat storage tank is lower than the heat storage tanks 10J and 10I, if the liquid is directly recovered to the primary heat storage tanks 10H and 10G, then a relatively high heat source remaining in the primary heat storage tank is unnecessarily cooled to lose heat. On the contrary, if the temperature of the fluid to be recovered is higher than the secondary storage tanks 10I and 10J, if the liquid is recovered to the primary storage tanks 10H and 10G via the secondary storage tank, This is because the amount of heat remaining in the primary heat storage tanks 10I and 10J as well as the heat storage tanks 10G and 10H on the primary side will cause heat loss.

Example 4

Similar to the case of Example 3 in that a plurality of heat storage tanks are divided into a primary side and a secondary side, and these are installed on a wall, but the heat absorption (heat storage) and heat dissipation (heating) performance of the heat storage tank by a heat pipe are improved. In addition to simplifying the circulation passage of the fluid, the internal resistance of the tube is minimized so that the supply and recovery of the heated or cooled fluid can be made quickly during the heating circulation.

25 to 32 and 37 and 38, in order to provide a heat storage means, a plurality of heat storage tanks, preferably a plurality of primary side heat storage tanks 10K, 10L having the same structure, and a plurality of the same structure Secondary heat storage tanks (10M, 10N) is provided, the heat storage tube 80 for circulating the heat medium oil heated from an external heat source of power, boiler, or other waste heat is the lower chamber of the heat storage tanks (10K, 10L, 10M, 10N) Each 10b is connected in the same line to pass through the lower chamber 10b of the primary heat storage tanks 10K and 10L via the lower chamber 10b of the secondary heat storage tanks 10M and 10N. As the tanks 10K and 10L are connected to the heat storage tube 80, the variable pump VP ₁ is installed at the inlet or outlet side of the heat storage tube 80, and the heat medium is transferred through the heat storage tanks 10K, 10L, 10M, and 10N. A heat storage tube 80 in which fluid filled in each lower chamber 10b of these heat storage tanks 10K, 10L, 10M, and 10N is heated while pumping oil. It is configured to perform heat storage while circulating.

In order to provide the heat storage control means of the heating system, a check valve (V ₁ ) is connected to the heat storage pipe (80) located between the both heat storage tanks (10L, 10M) and passes through the secondary heat storage tanks (10M, 10N). To prevent backflow of the heat medium oil, and connect the three-way valve CV ₁ between the in-line and the out-line of the heat storage tube 80, that is, at a predetermined position of the in-line, The inlet side heat storage pipe 80 between the point passing through (V ₁ ) and the secondary side heat storage tank 10M is connected to the three-way valve CV ₁ with a bypass pipe 80b.

In order to provide a heating means, the upper chambers 10a of the heat storage tanks 10K, 10L, 10M, and 10N are connected to the heating supply pipes 81 so as to be in line with each other, and the heat storage tanks 10K, 10L, The upper chamber 10a of 10M, 10N is connected to the heating supply pipe 81 to form a circulation path, and the variable pump VP ₂ and an outlet of one side of the heating supply pipe 81 are heated to a pipeline, a boiler, and a hot water supply. A line or air conditioner or at least two of them connected to the inlet of the heating load 82, and the outlet side of the heating load 82 is connected to the heating supply pipe of the secondary heat storage tank 10N, the heating load 82 Connect the flow control valve (V) to the inlet side of the user to adjust the heating supply.

In addition, in order to provide the installation means of the heat storage tank (10K, 10L, 10M, 10N), there is provided a support plate 85 in close contact with both front ends of the outer box, mounting bolt on the wall through the support plate 85 86 is fastened to constitute the fixing means of the heat storage tank.

Unexplained symbol W represents a wall.

-When accumulating-

As the heat medium oil heated by the external heat source is circulated along the heat storage tube 80 by the driving of the variable pump VP ₁ , the heat medium of the heat storage tube 80 passes through the lower chamber of the heat storage tanks 10K, 10L, 10M, and 10N. The heat source of the fluid heated in the lower chamber 10b is absorbed and radiated from the heat pipe 32 to supply heat to the heat storage tanks 10K, 10L, 10M, and 10N. To accumulate.

Here, the three-way valve CV ₁ during the heat storage process is kept closed until the heat medium oil of the heat storage tube 80 reaches a constant temperature value, and when the temperature of the heat medium oil reaches the set value, the controller (not shown) By this, the variable pump VP ₁ and the three-way valve CV ₁ are opened to perform heat storage.

The opening and closing of the flow path of the three-way valve CV ₁ has the temperature of the heat storage pipe 80 according to the set temperature value (phase change temperature of the heat storage material) of the heat storage tanks 10K, 10L, 10M, and 10N. If it is higher than or equal to the heat storage temperature of 10N), the 3-way valve CV ₁ opens to the primary heat storage tanks 10K and 10L to accumulate all the high / secondary heat storage tanks 10K, 10L, 10M, and 10N. When the temperature of the pipe 80 is lower than the heat storage temperature of the primary heat storage tanks 10K and 10L, the three-way valve CV ₁ opens to the secondary side to heat only these heat storage tanks 10M and 10N.

In the former case, the primary heat storage tanks (10K, 10L) are thermally stored or the secondary heat storage tanks (10M, 10N) are stored using the heat remaining after the heat storage. In the latter case, the heat storage tanks (10M, 10N) is only heat storage.

For example, if the set temperature range of the primary side heat storage tanks 10K and 10L is 60 to 80 ° C and the set temperature range of the secondary side heat storage tanks 10M and 10N is 30 to 40 ° C, the current heat storage tank ( If the heat storage temperature stored in 10K, 10L) is higher than or equal to 80 ° C, the heat storage tanks 10K and 10L on the primary side may be considered to have completed heat storage. 10N) to conduct secondary heat storage.

On the contrary, if the temperature of the heat storage tube 80 is lower than the heat storage temperature of 60 ° C of the primary heat storage tanks 10K and 10L and is higher than the heat storage temperature of 30 ° C of the secondary heat storage tanks 10M and 10N. The heat source of) will only heat up the heat storage tanks 10M and 10N on the secondary side by means of the three-way valve CV ₁ .

In this case, the secondary heat storage tanks 10M and 10N utilize the amount of heat that is discarded without being used at all in the primary heat storage tanks 10K and 10L, thereby achieving more rapid heat storage.

-Heat dissipation (heating)-

The regenerated heat source can be used for heating the room for heating, hot water supply, greenhouse crop, etc., reversibly at the time of the heat storage, the heat storage tank (10K, 10L, 10M, 10N) by driving the variable pump (VP ₂ ) The fluid heated from the upper chamber 10a of the air is supplied to a heating load 82 such as a heating pipeline, a hot water supply line, and an air conditioner along the heating supply pipe 81 to realize heating, and the circulating fluid that completes heating is Along with the variable pump VP ₂ is sequentially recovered from the secondary heat storage tank (10N, 10M) through the primary heat storage tank (10L, 10K).

The heating fluid is recovered along the upper chamber 10a and the heating supply pipe 81 of the continuous heat storage tanks 10K, 10L, 10M, and 10N in a straight line, so that rapid supply and recovery of the heating water can be achieved.

In addition, the heat storage tank (10K, 10L, 10M, 10N) is installed on the wall (W) has a feature that the installation space is greatly reduced.

Example 5

In this case, the heating pipe is simplified by supplying hot air to the upper chamber of the heat storage tank in which the heat pipe is located, without using a heating supply pipe as in the fourth embodiment or at least a liquid heating medium such as water or oil. In addition, the heating temperature can be increased by supplying primary warm air.

That is, as shown in Figs. 39 and 40, in order to provide the heat storage means, a plurality of heat storage tanks, preferably a plurality of primary side heat storage tanks 10K and 10L having the same structure, and a plurality of secondary heat storage tanks having the same structure. 10M, 10N, and the heat storage tube 80 for circulating the heat medium oil heated from an external heat source of electric power, a boiler, or other waste heat, opens the lower chamber 10b of the heat storage tanks 10K, 10L, 10M, 10N. They are connected in the same line to each other via the lower chamber 10b of the primary heat storage tanks 10K and 10L via the lower chamber 10b of the secondary heat storage tanks 10M and 10N and the outermost heat storage tanks 10K and 10L. 10L) is connected to the heat storage tube 80, the variable pump (VP ₁ ) is installed at the inlet or outlet side of the heat storage tube 80 to pump the heat medium oil through the heat storage tank (10K, 10L, 10M, 10N). And fluids filled in the lower chambers 10b of these heat storage tanks 10K, 10L, 10M, and 10N circulate the heated heat storage tube 80 at the same time. It is configured to perform heat storage.

In order to provide the heat storage control means of the heating system, a check valve (V ₁ ) is connected to the heat storage pipe (80) located between the both heat storage tanks (10L, 10M) and passes through the secondary heat storage tanks (10M, 10N). To prevent backflow of the heat medium oil, and connect the three-way valve CV ₁ between the in-line and the out-line of the heat storage tube 80, that is, at a predetermined position of the in-line, The inlet side heat storage pipe 80 between the point passing through (V ₁ ) and the secondary side heat storage tank 10M is connected to the three-way valve CV ₁ with a bypass pipe 80b.

In order to provide a heating means, the upper chambers 10a of the heat storage tanks 10K, 10L, 10M, and 10N are connected to the air duct 87 so as to be in line with each other, and any one heat storage tank 10K located at the outermost side. The hot air supply means 88 is connected to the air duct 87 to pressurize the hot air from 10N, and the air duct 87 of any of the heat storage tanks 10K and 10N positioned opposite to the hot air supply means 88. ) Is provided with an air filter 89 that sucks hot air.

The hot air supply means 88 is composed of at least a fan motor to feed hot air, and the heat source may use, for example, a waste heat source such as a boiler or an incinerator.

-When accumulating-

As the heat medium oil heated by the external heat source is circulated along the heat storage tube 80 by the driving of the variable pump VP ₁ , the heat medium of the heat storage tube 80 passes through the lower chamber of the heat storage tanks 10K, 10L, 10M, and 10N. The heat source of the fluid heated in the lower chamber 10b is absorbed and radiated from the heat pipe 32 to supply heat to the heat storage tanks 10K, 10L, 10M, and 10N. To accumulate.

Here, the three-way valve CV ₁ during the heat storage process is kept closed until the heat medium oil of the heat storage tube 80 reaches a constant temperature value, and when the temperature of the heat medium oil reaches the set value, the controller (not shown) By this, the variable pump VP ₁ and the three-way valve CV ₁ are opened to perform heat storage.

The opening and closing of the flow path of the three-way valve CV ₁ is based on the set temperature value (phase change temperature of the heat storage material) of the heat storage tanks 10K, 10L, 10M, and 10N. If the heat storage temperature is higher than or equal to 10L), the three-way valve CV ₁ opens to the primary storage tanks 10K and 10L to accumulate all of the high / secondary storage tanks 10K, 10L, 10M, and 10N. When the temperature of the pipe 80 is lower than the heat storage temperature of the primary heat storage tanks 10K and 10L, the three-way valve CV ₁ opens to the secondary side to heat only these heat storage tanks 10M and 10N.

In the former case, the primary heat storage tanks (10K, 10L) are thermally stored or the secondary heat storage tanks (10M, 10N) are stored using the heat remaining after the heat storage. In the latter case, the heat storage tanks (10M, 10N) is only heat storage.

For example, if the set temperature range of the primary side heat storage tanks 10K and 10L is 60 to 80 ° C and the set temperature range of the secondary side heat storage tanks 10M and 10N is 30 to 40 ° C, the current heat storage tank ( If the heat storage temperature stored in 10K, 10L) is higher than or equal to 80 ° C, the heat storage tanks 10K and 10L on the primary side may be considered to have completed heat storage. 10N) to conduct secondary heat storage.

On the contrary, if the temperature of the heat storage tube 80 is lower than the heat storage temperature of 60 ° C of the primary heat storage tanks 10K and 10L and is higher than the heat storage temperature of 30 ° C of the secondary heat storage tanks 10M and 10N. The heat source of) will only heat up the heat storage tanks 10M and 10N on the secondary side by means of the three-way valve CV ₁ .

In this case, the secondary heat storage tanks 10M and 10N utilize the amount of heat that is discarded without being used at all in the primary heat storage tanks 10K and 10L, thereby achieving more rapid heat storage.

-Heat dissipation (heating)-

The regenerated heat source can be used to heat the indoor heating, hot water supply, heating for crop cultivation in the greenhouse, and the like. The air filter 89 and the air duct 87 are driven by the hot air supply means 88. Hot air is sequentially fed to the upper chamber 10a of the heat storage tanks 10K, 10L, 10M, and 10N through the heat storage tank, and the heat storage tank 10K, 10L, 10M, 10N) is auxiliary heat storage and at the same time to correct the hot air sucked to the appropriate temperature, the air of the proper temperature after heat exchange is discharged to the room through the hot air supply means 88 of the heat storage tank (10K) located in the front end.

This heating method takes the form of heating the upper and lower ends of the heat pipe 32 at the same time with the supply of the heat storage source through the heat storage tube 80, not only realize rapid heating, but also can supply a sufficient heat source for heating. In addition, the use of waste heat sources contributes to further reductions in heating costs.

As described above, the heating by the complex use of the heat storage tank greatly contributes to the improvement of the heating efficiency and the heating capacity, and each of the embodiments disclosed above is merely illustrative of the fact that it can be used as such. It is not limited.

If necessary, the capacity and quantity of the heat storage tank may vary according to the arrangement of the heat storage tank and the required heating area, and the structure and circulation of the pipeline may also be changed, but this is also included in the scope of the present invention. It should be understood.

As described above, the heat storage device and the heating system using the phase change material of the present invention are arranged so that a plurality of unit heat storage panels with latent heat storage materials can be adjacently arranged and detached from the heat storage tank. It is easy to install and replace as it is composed of heat storage panel, and it is possible to maximize heat efficiency by increasing heat conductivity with increasing endothermic and heat dissipation area, and also filling the capacity of latent heat storage material below the capacity of cell and making the heat storage panel flexible. By absorbing the stress due to the shrinkage / expansion of the heat storage material during heat storage and heat dissipation, it is possible to achieve stability by preventing the burst at the same time.

In addition, it is possible to reduce the thickness of the external steel sheet of the heat storage tank by absorbing the stress from the heat storage panel having a plurality of elasticity, thus contributing to the weight reduction and manufacturing cost of the tank, and to the plurality of heat storage tanks according to the type and properties of the heat storage material. In the case of connection between low temperature side and high temperature side, heated water or thermal oil is sequentially supplied and circulated from the high temperature side heat storage tank to the low temperature side heat storage tank, and if its residual heat source or high temperature side is below the heat storage temperature By supplying a heat source to the low temperature side to perform heat storage, heat loss can be prevented and thermal efficiency can be greatly improved, thereby reducing the operating cost of power and fuel.

Claims (18)

In a heat storage device using a phase change material or a latent heat storage material, an inner box of a cylindrical body having an open top, a metal heat storage panel disposed continuously in the inner box, and a plurality of cells in which the heat storage material is sealed are formed. Barrier ribs formed in the longitudinal direction therein and guide ribs corresponding to both directions of the inner box so as to be detachable while providing a fluid passage for heat exchange between the heat storage panels; Frames formed at both ends of the heat storage panel so as to be slid to the guide ribs to maintain an even distance therebetween, an outer box surrounding the outer side of the inner box, a heat insulating material enclosed between these inner boxes and the outer box, and rotated to open and close the inner box. To support the heat storage panel while forming a lower chamber, and an upper heat storage tank formed of a cover, and an upper chamber and a lower chamber formed between the inner box and the heat storage panel in the closed state of the cover and communicating with the fluid passage. A heat storage device using a phase change material, characterized in that the support plate is formed in the inner box and formed with a through hole communicating with the fluid passage. The heat storage device according to claim 1, wherein the heat storage panel is formed by continuously embossing unevenness to absorb a stress due to heat storage and heat radiation of the heat storage material. The heat storage device using a phase change material according to claim 1, wherein the heat storage panel is formed by continuously forming wavy irregularities so as to absorb a stress due to heat storage and heat radiation of the heat storage material. The heat storage device according to claim 1, wherein the heat storage panel has a flat surface, and a plurality of heat dissipation fins protrude from a surface thereof. The heat storage device using a phase change material according to claim 1, wherein the heat storage panel has a flat surface, and a wave-shaped uneven heat sink is attached to a surface thereof. The heat storage device according to claim 1, wherein the heat storage panel is a porous plate, and a tube of a synthetic resin material in which a heat storage material is sealed is embedded in each cell. The heat storage panel of claim 1, wherein the heat storage panel includes a plurality of pipes arranged in a vertical direction, partition walls formed at equal intervals through the pipes to form a plurality of sealed cells, and a heat storage material enclosed in these cells, The heat storage device using a phase change material, characterized in that the pad is attached to the side of the unit heat storage panel having a water tightness, the pipe is in communication with the upper chamber and the lower chamber of the heat storage tank. The heat pipe of claim 7, wherein the pipe is a heat pipe filled with a refrigerant, and the upper and lower ends thereof are hermetically located in the upper chamber and the lower chamber, and the heat dissipation fin and the heat absorbing fin are formed to be exposed to the upper chamber and the lower chamber on the outer and lower parts thereof. Heat storage device using a phase change material, characterized in that. 9. The heat storage device using a phase change material according to claim 8, wherein guide ribs are formed on an inner circumferential surface of the heat pipe to delay the fall of the liquefied refrigerant. 10. The heat storage device using a phase change material according to claim 9, wherein the guide rib is spiral. The heat storage device using a phase change material according to any one of claims 1 to 7, wherein the heat storage material is encapsulated in an amount less than the volume of the cell. A plurality of heat storage tanks of which one side is opened and is insulated as a whole; A cover connected to the opening and closing portion of the heat storage tank so as to be rotatable and open, a heat storage panel replaceably installed in the heat storage tank and having a phase change temperature different from the heat storage panel so that the heat storage tank is divided into high and low temperature sides, and the top and bottom sides of the heat storage tank. An upper chamber and a lower chamber formed in contact with the heat storage panel, a heat storage tube connected to the lower chamber of one heat storage tank via a lower chamber of the other heat storage tank, and a heat fluid circulated to heat and heat the fluid in the lower chamber. A bypass pump connected to the variable pump mounted on the heat storage pipe, the heat storage pipe located between the outlet / inlet side of the high / low temperature heat storage tank, and the heat storage pipe located between the inlet side of the high temperature heat storage tank; , 3-way valve mounted on the bypass pipe to selectively open / close the flow path to the high / low temperature side according to the temperature of the heat storage pipe, and the outlet side of the high temperature side heat storage tank On the outlet side of the heating load and heating load which is connected to the heat storage tube and prevents the backflow of the thermal fluid, the heat radiation fins formed in the heat storage tube located in the lower chamber, and the heating supply pipe connected to the upper chamber to perform heating or hot water supply. Heating system using a phase change material, characterized in that consisting of a connected heating discharge pipe and a variable pump mounted on the heating discharge pipe to recover the heating fluid. The method of claim 12, wherein the heating discharge pipe is branched to the high / low temperature lower chamber, the branch connection portion is equipped with a three-way valve to selectively recover the heating fluid on the high / low temperature side according to the temperature of the heating discharge pipe, Heating system using a phase change material, characterized in that the fan valve is installed between the heating discharge pipe and the low-temperature upper chamber. The heating system using a phase change material according to claim 12, wherein the heating supply pipe is in communication with the high temperature upper chamber, and the heating discharge tube is in communication with the high temperature upper chamber. The high / low temperature side heat storage tank is provided in plural, and one upper chamber and the other lower chamber on the high / low temperature side communicate with each other via a coupling pipe, and the high temperature upper chamber and the heating load are connected to the heating supply pipe. Is connected to the other lower chamber on the high temperature side and the other lower chamber on the low temperature side, and the three-way valve is configured to selectively recover the heating fluid to the high / low temperature side according to the temperature of the heating discharge tube. Is equipped with a heating system using a phase change material, characterized in that the valve is connected between the heating discharge pipe and the other upper chamber of the low temperature side. The heat storage tank according to claim 12, wherein the high / low temperature side heat storage tanks are provided in plural, and upper chambers of these heat storage tanks communicate with each other, and one upper chamber on the high temperature side and one upper chamber on the low temperature side serve as a heating supply pipe and a heating discharge pipe. A heating system using a phase change material, each of which communicates with the heating load and is equipped with a variable pump in the heating discharge pipe to circulate the heating fluid. The high temperature / low temperature side heat storage tank is provided in plurality, and the upper chambers of these heat storage tanks communicate with each other to the air duct through the low temperature side from the high temperature side, and supply hot air to the inlet upper chamber on the high temperature side. A heating system using a phase change material, characterized in that the means is mounted, and an air filter is mounted in the outlet upper chamber on the low temperature side. 18. The heat storage tank according to any one of claims 15 to 17, wherein the heat storage tank is slim and sealed with a support plate while the connection portion between the tank and the tank is filled with heat insulating material, and is installed on the building wall through each support plate for installation of the tank. Heating system using a phase change material, characterized in that the mounting bolt is fastened.