Thermal energy storage heat exchange system, power generation system, and operating method for thermal energy storage heat exchange system

Abstract

To reduce frequency of maintenance.SOLUTION: A heat storage type heat exchanger includes: at least one heat radiating heat transfer pipe; a heat storage part disposed around the heat radiating heat transfer pipe, capable of exchanging heat with the heat radiating heat transfer pipe, and filled with a metal-based latent heat storage material; a protective layer disposed at a boundary surface between the heat storage part and other members; a holding container disposed around the heat storage part to hold the heat storage part; and a heating part capable of exchanging heat with the heat storage part and heating the heat storage part.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present disclosure relates to a regenerative heat exchanger, a regenerative heat exchange system, a power generation system, and an operation method of a regenerative heat exchange system.

Background Art

[0002] In order to enable high heat conductivity and high-speed heat transfer and utilization of high-temperature steam in the range of 400 to 650 °C obtained in a thermal power plant, the use of a metal-based latent heat storage material has been studied (Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, unlike hydrate-based and organic-based latent heat storage materials, metal-based latent heat storage materials are erosive, and it is necessary to provide an appropriate erosion prevention protective layer. Since this protective layer is consumed as it is used, regular maintenance such as re-coating the protective layer is required. In the case of an integrated type in which a metal-based latent heat storage material is stored in a large tank for on-site construction, it becomes difficult to perform assembly at a site where the quality of the protective layer can be guaranteed and maintenance within the plant. Therefore, the above-described storage container is preferably assembled in a factory from the viewpoints of quality assurance and maintenance. However, in that case, there are problems in the transportation of the container and the method of arranging it on site, which has become an obstacle to the practical application of a regenerative heat exchanger using a metal-based latent heat storage material.

[0005] The present disclosure solves the above-described problems, and an object thereof is to provide a regenerative heat exchanger using a metal-based latent heat storage material having a module structure of an appropriate size that enables quality assurance, transportation, and maintenance within a plant of an erosion prevention protective layer. [Means for solving the problem]

[0006] A heat storage heat exchanger according to the present disclosure for achieving the above objectives comprises: at least one heat transfer tube for heat dissipation; a heat storage section disposed around the heat transfer tube, capable of exchanging heat with the heat transfer tube, and filled with a metallic latent heat storage material; a protective layer disposed at the interface between the heat storage section and other components; a holding container disposed around the heat storage section to hold the heat storage section; and a heating section capable of exchanging heat with the heat storage section and for heating the heat storage section.

[0007] Furthermore, the regenerative heat exchange system of the present disclosure comprises a plurality of regenerative heat exchangers as described above, and a holding mechanism for holding the regenerative heat exchangers in parallel, wherein the regenerative heat exchangers are provided with support beams that protrude horizontally from the holding container and whose upper vertical side, lower vertical side, or both sides are in contact with the holding mechanism.

[0008] Furthermore, the power generation system of this disclosure comprises the regenerative heat exchange system described above, a turbine to which high-temperature steam is supplied from the heat transfer tubes of the regenerative heat exchanger, a generator connected to the turbine, and a heat source that supplies heat to the heating section.

[0009] Furthermore, the operating method for the thermal energy storage heat exchange system of this disclosure is the operating method for the thermal energy storage heat exchange system described above, wherein the storage compartments are provided in multiple locations, the compartment to be maintained is identified from the multiple storage compartments, and maintenance is performed on the compartment to be maintained while operating the other compartments. [Effects of the Invention]

[0010] According to this disclosure, compared to an integrated type, it becomes easier to ensure the quality of the erosion-preventive protective layer and to perform maintenance within the plant. Furthermore, during maintenance, it is only necessary to replace the module in question with a module that has already been maintained, thus reducing the decrease in plant operating rate associated with maintenance. [Brief explanation of the drawing]

[0011] [Figure 1] Figure 1 is a schematic diagram showing a power generation system equipped with a thermal energy storage heat exchanger according to this embodiment. [Figure 2] Figure 2 is a side view showing the schematic configuration of a thermal storage heat exchanger. [Figure 3] Figure 3 is a cross-sectional view showing the schematic configuration of a thermal storage heat exchanger. [Figure 4] Figure 4 is a schematic diagram showing a power generation system equipped with a thermal storage heat exchanger according to another embodiment. [Figure 5] Figure 5 is a schematic diagram showing a power generation system equipped with a thermal storage heat exchanger according to another embodiment. [Figure 6] Figure 6 is a schematic diagram showing a power generation system equipped with a thermal energy storage heat exchange system. [Figure 7] Figure 7 is a schematic diagram showing the general configuration of a thermal energy storage heat exchange system. [Figure 8] Figure 8 is a side view illustrating the schematic configuration of one section of a thermal storage heat exchange system. [Figure 9] Figure 9 is a top view illustrating the schematic configuration of one section of a thermal storage heat exchange system. [Modes for carrying out the invention]

[0012] Preferred embodiments of the present disclosure will be described in detail below with reference to the drawings. However, these embodiments do not limit the present disclosure, and where there are multiple embodiments, they may be combinations of these embodiments. Furthermore, the components in the embodiments include those readily conceivable by those skilled in the art, those that are substantially identical, and those that are equivalent.

[0013] <Power generation system> Figure 1 is a schematic diagram showing a power generation system equipped with the regenerative heat exchange system of this embodiment. As shown in Figure 1, the power generation system 10 of this embodiment comprises a regenerative heat exchanger 13, a turbine 14, a generator 15, and a heating module 24. The heating module 24 of this embodiment is a power source that supplies power to the electric heater of the regenerative heat exchanger 13.

[0014] The regenerative heat exchanger 13 stores heat using energy supplied from the heating module 24. The regenerative heat exchanger 13 heats water and steam with the stored heat and supplies it to the turbine 14 via the heat dissipation circuit 20. The regenerative heat exchanger 13 will be described later.

[0015] The turbine 14 is supplied with heated steam from the heat dissipation circuit 20, and rotates due to the force of the steam passing through it. For example, the turbine 14 has rotor blades located in the rotating part and stationary blades located in the stationary part, which are arranged alternately in the direction of the rotation axis. Steam passes through the space between the rotor blades and stationary blades, applying a rotational force to the rotor blades, thereby rotating the rotating part. The structure of the turbine 14 is not particularly limited. The generator 15 is connected to the rotation of the turbine 14 and generates electricity by rotating together with the turbine 14.

[0016] The heat dissipation circuit 20 is a conduit connecting the regenerative heat exchanger 13, the turbine 14, and the heat transfer fluid unit 22, circulating water (steam) in the order of regenerative heat exchanger 13, turbine 14, and heat transfer fluid unit 22. In this embodiment, water (steam) is used as the heat dissipation medium in the heat dissipation circuit 20, but various fluids such as various gases and liquids can be used as well as water, however it is preferable to use a medium that undergoes a phase change from liquid to gas in the regenerative heat exchanger 13. This makes it possible to increase the power generation efficiency of the turbine 14. The heat dissipation circuit 20 is supplied with water from the heat transfer fluid unit 22 via path 32, and the steam generated when the water is heated in the regenerative heat exchanger 13 is supplied to the turbine 14. The steam heated in the regenerative heat exchanger 13 rotates the turbine 14. The heat dissipation circuit 20 supplies the steam that has passed through the turbine 14 via path 32 to the heat transfer fluid unit 22. As a result, the heat dissipation circuit 20 circulates water (water vapor).

[0017] The heat medium treatment unit 22 is arranged in the heat dissipation circuit 20 and processes the heat medium that has passed through the turbine 14 so that it can be supplied to the regenerative heat exchanger 13. The heat medium treatment unit 22 of the present embodiment includes a condenser that returns the heat medium that has passed through the turbine 14 to a liquid, and a pump that controls the circulation of the heat medium. Further, the heat medium treatment unit 22 may include a feed water heater that heats the water that has passed through the condenser. The heat medium treatment unit 22 controls the circulation of water (steam).

[0018] The heating module 24 supplies power to the regenerative heat exchanger 13 and heats the regenerative heat exchanger 13. The heating module 24 can use various types of power as a power source, but it is preferable to supply the surplus power generated from the grid power to the regenerative heat exchanger 13.

[0019] Hereinafter, the regenerative heat exchanger 13 will be described with reference to FIGS. 2 and 3. FIG. 2 is a perspective view showing the schematic configuration of the regenerative heat exchanger. FIG. 3 is a horizontal cross-sectional view showing the schematic configuration of the regenerative heat exchanger. In FIGS. 2 and 3, one module of the regenerative heat exchanger 13 is shown, but the power generation system 10 may include a plurality of modules of the regenerative heat exchanger 13.

[0020] The regenerative heat exchanger 13 is a structure filled with a heat storage material that accumulates the supplied heat. In the present embodiment, it is a cylindrical structure. The outer shape is not limited to this. The regenerative heat exchanger 13 includes a heat storage unit 100, a holding container 102, heat dissipation heat transfer tubes 104, a heating heater 106, and protective layers 108, 110, 112. In the present embodiment, the heating heater 106 is adopted as the heating module 24, but it is not particularly limited thereto, and a heating heat transfer tube may be used. The shape of this heat exchanger enables quality assurance of the erosion prevention protective layer and maintenance within the plant.

[0021] The heat storage unit 100 is a latent heat storage material (PCM: Phase Change Material), which is made of metal, becomes a liquid phase when heated, and becomes a solid phase when heat is released. For example, the heat storage unit 100 can be made of aluminum mixed with other metals, or an aluminum-based metal.

[0022] The holding container 102 is a container that holds the heat storage unit 100. The holding container 102 is made of a material with a melting point higher than the operating temperature of the heat storage unit 100. For example, the holding container 102 is made of stainless steel. It is preferable that the holding container 102 surrounds the heat storage unit 100 with an insulating material or the like. The holding container 102 is provided with a support beam 120 that protrudes horizontally near its upper vertical end. The lower vertical surface of the support beam 120 is in contact with the horizontal support 64 of the holding mechanism 60 that supports the heat storage heat exchanger 13. In this embodiment, the case in which the holding container 102 is suspended from above is described, but the holding container 102 may be supported on its bottom surface or on its sides. The support beam 120 is the contact surface with the holding mechanism 60 and serves as a positioning member. The support beam 120 also includes a connection part for a suspension rod 130 used when moving with a work crane, which will be described later.

[0023] The heat transfer tube 104 is a pipe that connects to the heat dissipation circuit 20 and is inserted into the heat storage unit 100. Both ends of the heat transfer tube 104 are connected to the heat dissipation circuit 20, and the heat transfer medium flowing through the heat dissipation circuit 20 passes through it. In this embodiment, one heat transfer tube 104 is inserted into the heat storage unit 100. Note that the number of heat transfer tubes 104 is not limited to one, and multiple tubes may be installed.

[0024] The heating element 106 is connected to the heating module 24 and generates electricity using power supplied from the heating module 24. Alternatively, when a heat transfer tube is used instead of the heating element, the portion of the heating element 106 becomes the heat transfer tube, which is a pipe connected to the heating circuit 18 and inserted into the heat storage unit 100. Both ends of the heat transfer tube are connected to the heating circuit 18, and the heat transfer medium flowing through the heating circuit 18 passes through it. In this embodiment, multiple heating elements 106 are inserted into the heat storage unit 100.

[0025] The protective layers 108, 110, and 112 are positioned at the interface between the heat storage section 100 and other components. Protective layer 108 is positioned at the boundary between the heat storage section 100 and the holding container 102. Protective layer 110 is positioned at the boundary between the heat storage section 100 and the heat dissipation heat transfer tube 104. Protective layer 112 is positioned at the boundary between the heat storage section 100 and the heating heater 106. The entire outer surface of the heat storage section 100 is covered by the protective layers 108, 110, and 112. The protective layers 108, 110, and 112 are made of a material that has high corrosion resistance to the metallic latent heat storage material of the heat storage section 100. The protective layers 108, 110, and 112 suppress the metallic latent heat storage material from corroding other components. The protective layer is not particularly limited as long as it is a material capable of preventing the erosion of the metallic latent heat storage material, but zirconium oxide can be given as an example.

[0026] Furthermore, the regenerative heat exchanger 13 uses a metallic latent heat storage material in the heat storage section 100, and by providing protective layers 108, 110, and 112 around the heat storage section 100, the usable temperature of the heat storage section 100 can be increased, for example from 400°C to 650°C, allowing for the storage of more heat and suppressing corrosion of other components by the heat storage section 100. As a result, it can be used for a longer period of time and the frequency of maintenance can be reduced.

[0027] Furthermore, by using an electric heater as the heating element for heating the heat storage section 100 of the regenerative heat exchanger 13, solar cells can also be used as the power source. In addition, even when heating with electricity, if there is surplus electricity, heat can be stored and released to generate electricity when there is high electricity demand, thereby stabilizing the power grid.

[0028] In this embodiment, the heating module 24 heats the regenerative heat exchanger 13 by supplying power, but the heat source is not limited to this. The heating module 24 can use various heat sources to heat the heat medium, such as a heating furnace that generates heat by burning fuel, a solar thermal concentrator that heats an object by concentrating sunlight and heats the heating medium with the heat of the object, or a nuclear reactor.

[0029] Figure 4 is a schematic diagram showing a power generation system equipped with a regenerative heat exchanger of another embodiment. Figure 4 is an example of a system in which a regenerative heat exchanger 13 is heated using a heat transfer medium. The power generation system 10a shown in Figure 4 comprises a regenerative heat exchanger 13, a turbine 14, a generator 15, a heating module 16, a heating circuit 18, a heat dissipation circuit 20, and a heat transfer medium processing unit 22. The turbine 14, generator 15, heat dissipation circuit 20, and heat transfer medium processing unit 22 of the power generation system 10a are the same as the parts of the power generation system 10, so their description is omitted. In this embodiment, the regenerative heat exchanger 13 has heating tubes instead of heating heaters 106. The heating tubes are positioned in the same location as the heating heaters 106.

[0030] The heating module 16 is a heat source that heats the regenerative heat exchanger 13. In this embodiment, the heating module 16 heats the heat transfer medium (heating medium) that circulates in the heating circuit 18. The heating module 16 can use various heat sources to heat the heat transfer medium, such as a heating furnace that generates heat by burning fuel, a solar thermal energy concentrator that heats an object by concentrating sunlight and then heats the heating medium with the heat from the object, or a nuclear reactor.

[0031] The heating circuit 18 is a conduit connecting the regenerative heat exchanger 13 and the heating module 16, and circulates a heat transfer medium (heating medium) between the regenerative heat exchange system 12 and the heating module 16. Various media that can move through the conduit can be used as the heating medium, and can be either a gas or a liquid. The heating circuit 18 circulates the heat transfer medium by supplying the heat transfer medium heated in the heating module 16 to the heating tubes of the regenerative heat exchanger 13, and sending the heat transfer medium from which heat has been absorbed in the regenerative heat exchanger 13 back to the heating module 16.

[0032] The power generation system 10a generates heat in the heating module 16 and supplies it to the regenerative heat exchanger 13 by circulating the heating medium through the path 30 of the heating circuit 18. In the regenerative heat exchanger 13, the heat storage section 100 is heated by the heating medium passing through it. The heat storage section 100 stores the supplied heat. When the temperature of the heat storage section 100 is heated above a predetermined level, it becomes a liquid phase. The heating medium that has passed through the heat transfer tubes of the regenerative heat exchanger 13 passes through the heating circuit 18 and returns to the heating module 16. In other words, it circulates through path 30. The power generation system 10a also circulates water (water vapor) through the same path as the power generation system 10, namely path 32 of the heat dissipation circuit 20.

[0033] Thus, heat can also be stored by providing heating heat transfer tubes in the regenerative heat exchanger 13 and circulating a high-temperature heat transfer medium through the heating heat transfer tubes. In this case as well, by providing a protective layer 110 at the boundary between the heating heat transfer tubes and the heat storage section 100, the same effect as when using a heating heater 106 in the regenerative heat exchanger 13 can be obtained.

[0034] Figure 5 is a schematic diagram showing a power generation system equipped with a regenerative heat exchanger of another embodiment. Figure 5 is an example of a system in which a regenerative heat exchanger 13 is heated using a heat transfer medium. The power generation system 10b shown in Figure 5 comprises a regenerative heat exchanger 13, a turbine 14, a generator 15, a heating module 16, a heating circuit 18, a heat dissipation circuit 20, and a heat transfer medium processing unit 22. The power generation system 10b is the same as the power generation system 10a except for the configuration of the heating circuit 18.

[0035] The heating circuit 18 connects the heating module 16 to the regenerative heat exchanger 13 and supplies the heat transfer medium heated by the heating module 16 to the regenerative heat exchanger 13. The heating circuit 18 discharges the heat transfer medium that has passed through the regenerative heat exchanger 13 to the outside.

[0036] As in power generation system 10b, the heat source for heating the regenerative heat exchanger 13 can be a heat transfer medium that passes through the regenerative heat exchanger 13, and the heat transfer medium can not be circulated. In addition, power generation system 10b of this embodiment can utilize exhaust gas from a combustion furnace or incinerator as a heat transfer medium.

[0037] In the above embodiment, a power generation system using one module of thermal storage heat exchanger 13 was used, but a power generation system using multiple modules can also be used.

[0038] The following describes the case where the regenerative heat exchanger 13 is composed of multiple modules. First, using Figure 6, the schematic configuration of a regenerative heat exchange system 12 having multiple modules of regenerative heat exchanger 13 will be described. Figure 6 is a schematic diagram showing the schematic configuration of a regenerative heat exchange system. As shown in Figure 6, the power generation system 10c of this embodiment comprises a regenerative heat exchange system 12, a turbine 14, a generator 15, a heating module 16, a heating circuit 18, a heat dissipation circuit 20, and a heat transfer medium processing unit 22. The power generation system 10c has the same configuration as the power generation system 10, except that the regenerative heat exchange system 12 has multiple modules of regenerative heat exchanger 13. The heating module 16, heating circuit 18, and heat dissipation circuit 20 have different piping configurations, etc., corresponding to the multiple modules of regenerative heat exchanger 13, but their functions are the same as those of each part of the power generation system 10.

[0039] The following describes the regenerative heat exchange system 12. The schematic configuration of the regenerative heat exchange system 12 will be explained using Figure 7. Figure 7 is a schematic diagram showing the schematic configuration of the regenerative heat exchange system. The regenerative heat exchange system 12, which has multiple modules of regenerative heat exchangers, comprises multiple compartments 40, a work crane 42, and a maintenance unit 44, as shown in Figure 7. Note that the maintenance unit 44 of the regenerative heat exchange system 12 may not be adjacent, i.e., it may be in a remote location. The multiple compartments 40 are arranged adjacent to each other on the same site. Each compartment 40 is equipped with numerous regenerative heat exchangers 13. The compartments 40 will be described later.

[0040] The work crane 42 is a work machine that can move between the multiple compartments 40 and the maintenance section 44 in the vertically upper area between the multiple compartments 40 and the maintenance section 44. The work crane 42 can suspend and move the regenerative heat exchanger 13, and is used for positioning the regenerative heat exchanger 50 in the compartments 40 and moving the regenerative heat exchanger 13.

[0041] The maintenance unit 44 performs inspections and repairs of the regenerative heat exchanger 13. The maintenance unit 44 also has a regenerative heat exchanger 13 for replacement. The maintenance unit 44 inspects and repairs the regenerative heat exchanger 13 that has been transported by the work crane 42. The regenerative heat exchange system 12 uses the work crane 42 to supply the regenerative heat exchanger 50, which is located in the maintenance unit 44, and the maintained regenerative heat exchanger 13 to a loadable position in the compartment 40.

[0042] Next, section 40 will be described using Figures 8 and 9. Figure 8 is a side view showing the schematic configuration of one section of the thermal energy storage heat exchange system. Figure 9 is a top view showing the schematic configuration of one section of the thermal energy storage heat exchange system.

[0043] As described above, compartment 40 is equipped with multiple regenerative heat exchangers 13. Compartment 40 includes multiple regenerative heat exchangers 13, a holding mechanism 60, an insulating material 62, wiring 70, a heat dissipation medium supply unit 80, and a heat dissipation medium discharge unit 82.

[0044] The holding mechanism 60 holds multiple regenerative heat exchangers 13. The holding mechanism 60 is a structure made up of columns and beams made of steel or the like, with a space in which the regenerative heat exchangers 13 are placed. The holding mechanism 60 has horizontal support members 64. The horizontal support members 64 have holes that are smaller in diameter than the support beams of the regenerative heat exchangers 13, through which the main bodies of the multiple regenerative heat exchangers 13 can pass. The horizontal support members 64 contact the support beams of the regenerative heat exchangers 13 and support the regenerative heat exchangers 13.

[0045] The insulation material 62 is placed on the outer wall surface of the holding mechanism 60 and covers the space in which the multiple heat storage type heat exchangers 13 are arranged. The insulation material 62 suppresses heat exchange between the space in which the multiple heat storage type heat exchangers 13 are arranged and the outer area, and suppresses the release of heat held by the multiple heat storage type heat exchangers 13. In addition to the construction method shown in this embodiment, methods other than directly applying the insulation material to the heat storage type heat exchangers 13 can be used.

[0046] The wiring 70 connects the heating module 24 to the multiple regenerative heat exchangers 13. The wiring 70 sends the power supplied from the heating module 24 to the multiple regenerative heat exchangers 13.

[0047] The heat dissipation medium supply unit 80 connects the end of the heat dissipation circuit 20 to the multiple regenerative heat exchangers 13. The heat dissipation medium supply unit 80 acts as a header for the multiple regenerative heat exchangers 13, supplying the heating medium from the heat dissipation circuit 20 to the multiple regenerative heat exchangers 13. The heat dissipation medium discharge unit 82 connects the end of the heat dissipation circuit 20 to the multiple regenerative heat exchangers 13. The heat dissipation medium discharge unit 82 acts as a header for the multiple regenerative heat exchangers 13, discharging the heat dissipation medium that has passed through the multiple regenerative heat exchangers 13 to the heat dissipation circuit 20.

[0048] Furthermore, the regenerative heat exchanger 13 can be easily transported by providing a support beam 120 and having a structure that allows it to be suspended. In this embodiment, the case in which the holding container 102 is suspended from above is described, but the holding container 102 may be supported on its bottom surface or on its sides. The support beam 120 is the contact surface with the holding mechanism 60 and serves as a positioning member. The support beam 120 also has a connection part for the suspension rod 130 used when moving with a work crane. The regenerative heat exchanger 13 is moved by being suspended via the suspension rod 130.

[0049] The thermal storage heat exchange system 12 has a structure that provides multiple compartments 40, so that even when the thermal storage heat exchanger 13 in one compartment 40 is being maintained, heat storage and heat release can be performed in other compartments. This makes it possible to increase the operating efficiency. In addition, as in this embodiment, by arranging the thermal storage heat exchangers 13 in parallel horizontally with their axial direction (longitudinal direction) being vertical, the thermal storage heat exchangers 13 can be easily removed and installed.

[0050] In section 40 of this embodiment, the regenerative heat exchangers 13 are arranged in a single vertical row and a horizontal row in the holding mechanism 60, but the arrangement method is not particularly limited. They may be arranged in a staggered horizontal pattern. The regenerative heat exchangers 13 may also be arranged in two vertical rows in the holding mechanism 60. Furthermore, the axial direction of the regenerative heat exchangers 13 is not limited to the vertical direction; they may also be arranged in an inclined direction relative to the vertical or horizontally.

[0051] Furthermore, the power generation system 10 may be installed in conjunction with a power generation facility using a boiler. In this case, the turbine 14 can be the turbine of the power generation facility using a boiler. The power generation system 10 can use the waste heat from the boiler of the power generation facility using a boiler, or the surplus electricity generated by the power generation facility using a boiler, as a heat source (heat source) for the regenerative heat exchanger. Also, if power generation is required but cannot be done with the regenerative heat exchanger, power can be generated using the boiler.

[0052] Furthermore, if the power generation system 10 uses a heat transfer medium for heating and heat dissipation of the regenerative heat exchanger, it may be structured so that the heating medium and the heat dissipation medium flow through the same heat transfer tube. For example, a three-way valve may be provided to connect the piping of the regenerative heat exchange system 12 to the heating circuit 18 and the heat dissipation circuit 20, and the heat storage and heat dissipation of the regenerative heat exchange system 12 may be switched by switching the three-way valve.

[0053] Furthermore, although the thermal storage heat exchanger 13 of this embodiment has been described as a case where stored heat is released to generate electricity, it may also be used as a heat source for purposes other than power generation. For example, the heat stored in the thermal storage heat exchanger 13 may be used for heating or as energy for a steam generation source. [Explanation of Symbols]

[0054] 10, 10a, 10b, 10c power generation system 12. Thermal storage heat exchange system 13 Regenerative heat exchanger 14 Turbine 16, 24 Heating Modules 18 Heating circuit 20 Heat dissipation circuit 22 Heat Transfer Unit Routes 30 and 32 40 plots 42. Work Cranes 44 Maintenance Department 50 Regenerative heat exchanger 60 Retention mechanism 62 Insulation 64 Horizontal support 70 Wiring 80 Heat dissipation medium supply section 82 Heat dissipation medium discharge part 100 Heat storage section 102 Holding container 104 Heat transfer tubes for heat dissipation 106 Heating heater 108, 110, 112 protective layer 120 Support beam 130 Hanging rod

Claims

1. At least one heat transfer tube for heat dissipation, A heat storage section is arranged around the heat transfer tubes, is capable of exchanging heat with the heat transfer tubes, and is filled with a metallic latent heat storage material. A protective layer is disposed at the interface between the heat storage section and other components, A holding container is arranged around the heat storage unit and holds the heat storage unit, A plurality of regenerative heat exchangers comprising a heating unit that is capable of exchanging heat with the heat storage unit and heats the heat storage unit, A holding mechanism for holding the aforementioned regenerative heat exchangers in parallel, A storage compartment for housing multiple heat storage type heat exchangers, The system comprises a heat dissipation header that connects to the heat dissipation tubes of a plurality of the aforementioned heat storage type heat exchangers, The regenerative heat exchanger is a regenerative heat exchange system comprising a support beam that protrudes horizontally from the holding container and whose vertically lower surface is in contact with the holding mechanism.

2. The regenerative heat exchanger system according to claim 1, wherein the heating unit is a heater that generates heat when electricity is supplied to it.

3. The regenerative heat exchanger system according to claim 1, wherein the heating section is a pipe through which the heated heat transfer medium passes.

4. The regenerative heat exchanger system according to claim 3, wherein the heating section is a pipe through which the heated heat medium passes, and is the same piping as at least one of the heat transfer tubes for heat dissipation.

5. The regenerative heat exchanger is detachable from the holding mechanism, The regenerative heat exchange system according to any one of claims 1 to 4, wherein the support beam is provided with a connection portion for equipment that transports the regenerative heat exchanger.

6. A thermal storage heat exchange system according to any one of claims 1 to 5, The heat transfer tubes for heat dissipation of the aforementioned regenerative heat exchanger are supplied to a turbine, A generator connected to the turbine, A power generation system comprising a heat source that supplies heat to the heating section.

7. The power generation system according to claim 6, wherein the heat source is supplied from a generator having a boiler.

8. A method for operating a thermal energy storage heat exchange system according to any one of claims 1 to 5, The aforementioned storage compartments are provided in multiple locations. A method for operating a thermal energy storage heat exchange system, which involves identifying a storage compartment to be maintained from among multiple storage compartments and performing maintenance on the target compartment while operating the other compartments.

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