Heating device combined with magnetic field particle lifting

Abstract

The invention discloses a heating device combined with magnetic field particle lifting, which comprises a shell, a high-temperature solid particle storage bin and a low-temperature solid particle storage bin, and the high-temperature solid particle storage bin and the low-temperature solid particle storage bin are separated by a switchable insulation board; a gap is reserved between the top of the high-temperature solid particle storage bin and the inner wall of the shell and forms a channel for solid particles to enter the high-temperature solid particle storage bin, and the two ends of the gap communicate with the particle lifting pipelines on the two sides correspondingly. The particle lifting pipelines are vertically arranged on the two sides in the shell, the bottom ends of the particle lifting pipelines are connected with the lower side of the low-temperature solid particle storage bin through a sieve plate, and the top ends of the particle lifting pipelines communicate with a gap between the top of the high-temperature solid particle storage bin and the inner wall of the shell; the magnetic field particle lifting device surrounds the outside of the particle lifting pipeline; the heating devices are respectively arranged on the outer sides of the particle lifting pipelines; and the heat exchange tube bundle is arranged in the high-temperature solid particle storage bin.

Description

Technical Field

[0001] This invention belongs to the field of renewable energy power generation technology, specifically relating to a heating device that combines magnetic field particle lifting. Background Technology

[0002] Due to the severe situation caused by climate issues such as global warming, the installed capacity of renewable energy power generation worldwide has been increasing year by year. However, the intermittency and volatility of renewable energy pose challenges to the stability of the power grid. Coupled renewable energy power generation with thermal storage technology can achieve peak shaving and valley filling, thereby increasing the installed capacity of renewable energy power generation.

[0003] Currently used thermal storage materials, such as molten salts, possess high energy storage density; however, their corrosiveness increases the operational risks of the system. Molten salts must be stored above their melting point to prevent solidification, necessitating electric heating to supplement power consumption and equipment maintenance costs. In contrast, solid thermal storage materials eliminate these safety hazards and improve overall safety. Furthermore, solid thermal storage materials are inexpensive, widely available, and highly economical. Therefore, solid sensible heat storage is a promising technology for expanding the application of renewable energy power generation.

[0004] Chinese invention patent CN111735332A discloses a high-temperature solid particle heat exchange system. High-temperature particles heated by solar energy are driven by gravity to fall and heat gas. The gas acts as an intermediate medium for heat exchange with the working fluid in a power circulation system, reducing wear on the heat exchange surface. Pneumatic conveying is used to recover leaked particles during the lifting process, effectively reducing particle heat loss. A positive-pressure cryogenic particle storage tank is designed to prevent backflow of the heat exchange gas.

[0005] Chinese invention patent CN116717918A discloses a solid particle heat absorption, storage, and exchange device based on secondary reflection concentrating technology. The device features a concentrator at the top to refocus sunlight focused by a secondary reflector, heating the solid particles. The heat-absorbing wall is inclined and includes flow-blocking devices to improve the adjustability of the particle's descent speed. This integrated device has a relatively compact structure and reduces photothermal loss through the refocusing of secondary light.

[0006] Chinese invention patent CN115854758A discloses a phase change heat exchange system for solid particles and a solar thermal power generation system. The system incorporates multiple heat exchangers. High-temperature solid particles first heat the phase change medium through direct contact, and the heat from the gaseous phase change medium is transferred to the circulating working fluid of the power generation system. This contact heat exchange method avoids the need for heat exchange surfaces, significantly reducing the cost of the heat exchange system. A counter-current bypass is provided to the particle feeding device to supply positive pressure and prevent backflow of the phase change material, which could cause heat loss.

[0007] Chinese invention patent CN114777545A discloses a solid particle thermal storage device integrating heat storage and exchange. An electric heating zone is located at the bottom of the device, where the thermal storage material is fixedly stored, and heat exchange tubes are inserted into the storage area of ​​the thermal storage material. When the system releases heat, the heat exchange medium directly exchanges heat with the thermal storage material, without any intermediate heat transfer medium; the heat exchange tubes are directly placed within the solid particle material, resulting in a compact system structure.

[0008] Chinese invention patent CN116242180A discloses a fixed high-temperature solid particle heat exchanger. This heat exchanger is divided into several chambers by an insulating plate. Each chamber contains a tube bundle through which gas is introduced for heat exchange, and the inlet and outlet tube bundles at both ends of each chamber are connected. During the charging and discharging process, the temperature of the solid particles in the chambers still decreases in a stepped manner from top to bottom. This design, in which the solid particles are fixedly packed in the chambers, improves the safety and stability of the heat exchanger's operation and reduces the system power consumption.

[0009] Chinese invention patent CN118602836A discloses an electromagnetic induction heating fluidized bed, a thermal energy storage system, and a heat exchange method for the fluidized bed. The fluidized bed's inner cavity serves as a solid particle storage chamber. An electromagnetic induction heating coil is wound around the fluidized bed body. The coil generates an alternating current, which cuts through changing magnetic field lines on the inner wall of the fluidized bed, thus generating heat and transferring it to the solid particles stored within the inner cavity. A cooling air duct connected to the inner cavity is designed to cool the coil and recover Joule heat, improving thermal efficiency.

[0010] However, due to the high hardness of solid particles, fluidized bed heat exchange is prone to causing wear and tear on the device, reducing its service life. Gravity-driven heat exchange involves complex equipment, requiring a certain height to ensure sufficient heat transfer, which presents the following drawbacks: 1. Low space utilization efficiency, large footprint, and high construction costs; particle flow is difficult to control; 2. The particle lifting process requires additional power; 3. Ordinary fixed solid particle heat exchangers are limited by the stacking method and thermal conductivity, making it difficult to heat solid particles quickly and uniformly, thus affecting heat exchange efficiency. It should also be noted that current solid particle thermal storage device designs struggle to handle high-voltage power during peak and off-peak periods, which is a practical application problem that needs to be addressed.

[0011] In view of the above shortcomings, there is an urgent need to design a solid particle heating and heat storage device that can absorb high voltage electricity, so as to solve the technical problems of low particle heat transfer efficiency, large equipment footprint, and difficulty in controlling particle flow in the existing technology. Summary of the Invention

[0012] To address the aforementioned technical problems in the prior art, this invention provides a heating device that combines magnetic field particle lifting, thereby solving the technical problems of low particle heat transfer efficiency, large equipment footprint, and difficulty in controlling particle flow in the prior art.

[0013] The technical solution adopted in this invention is:

[0014] A heating device combining magnetic field particle lifting is characterized by comprising an outer shell, within which are disposed a high-temperature solid particle storage chamber and a low-temperature solid particle storage chamber, the low-temperature solid particle storage chamber being located below the high-temperature solid particle storage chamber, and the high-temperature and low-temperature solid particle storage chambers being separated by a switchable insulation plate; particle lifting pipes are disposed between the inner wall of the outer shell and the outer walls of both the high-temperature and low-temperature solid particle storage chambers; a gap is left between the top of the high-temperature solid particle storage chamber and the inner wall of the outer shell, the gap forming a channel for solid particles to enter the high-temperature solid particle storage chamber, and both ends of the gap being connected to the particle lifting pipes on both sides respectively; wherein:

[0015] A high-temperature solid particle storage chamber is used to store heated high-temperature solid particles; the top of the high-temperature solid particle storage chamber has an opening, and the opening is equipped with a liftable heat-insulating baffle.

[0016] Low-temperature solid particle storage chamber, used to store solid particles that have released all their thermal energy.

[0017] The particle lifting pipes are arranged vertically on both sides inside the shell, with the bottom end connected to the lower side of the low-temperature solid particle storage chamber through a sieve plate, and the top end connected to the gap between the top of the high-temperature solid particle storage chamber and the inner wall of the shell.

[0018] A magnetic field particle lifting device surrounds the outside of a particle lifting pipe and is used to provide upward force to the solid particles inside the particle lifting pipe.

[0019] Laser heating devices are installed on the outside of the particle lifting pipe to heat the solid particles inside the particle lifting pipe.

[0020] The heat exchange tube bundle is installed inside the high-temperature solid particle storage chamber, with its upper end connected to the steam inlet and outlet and its lower end connected to the cold water inlet and outlet.

[0021] The coil cooling air passage is located on the outer wall of the particle lifting pipe, and the outlet of the cooling air passage is connected to the air port at the bottom of the particle lifting pipe.

[0022] Furthermore, the laser heating device includes multiple laser heaters, which are arranged at intervals from top to bottom on a fixed support, and the laser emitting end of the laser heater is positioned opposite to the particle lifting pipe.

[0023] Furthermore, the side of the particle lifting pipe facing the laser heater is transparent; the side away from the laser heater is a heat-collecting surface used to absorb excess light and heat.

[0024] Furthermore, the magnetic field particle lifting device includes multiple coils that are spaced around the particle lifting pipe, and the multiple coils are interconnected.

[0025] Furthermore, the lifting and insulating baffle includes an insulating baffle and a lifting rod. One end of the lifting rod is vertically installed on the top of the insulating baffle, and the other end is connected to a motor drive to realize the vertical movement of the insulating baffle.

[0026] Furthermore, the bottom of the low-temperature solid particle storage chamber is provided with a first inclined surface and a second inclined surface. The solid particles on the first and second inclined surfaces enter the particle lifting pipe through the sieve plate under the action of gravity. The first and second inclined surfaces are symmetrically arranged with respect to the central axis of the low-temperature solid particle storage chamber. The first and second inclined surfaces have a first end and a second end, respectively. The first end is located obliquely above the second end and the first end of the first inclined surface is connected to the first end of the second inclined surface. The second end of the first inclined surface and the second end of the second inclined surface are respectively connected to the bottom end of the sieve plate.

[0027] Furthermore, the outer shells of the high-temperature solid particle storage chamber and the low-temperature solid particle storage chamber are covered with an insulation layer.

[0028] Furthermore, the transparent surface of the particle lifting pipe is made of quartz or transparent ceramic material, which can withstand high temperatures above 300°C.

[0029] Furthermore, the heat exchange tube bundle is arranged in a serpentine pattern from bottom to top along the inner cavity of the high-temperature solid particle storage chamber, with the upper and lower ends being the heat exchange medium inlet / outlet, respectively.

[0030] Furthermore, the solid particle material is magnetite, the particle size is related to the coil current, and the average particle mass is adapted to the magnitude of the magnetic field that the coil can provide.

[0031] Furthermore, the insulation board has a two-layer telescopic structure. The upper insulation board is fixed and has an opening in the middle. The lower insulation board includes left and right opening and closing plates. The outer sides of the left and right opening and closing plates are connected to the inner wall of the low-temperature solid particle storage chamber through electric telescopic brackets. During the heat storage and release process, the opening and closing of the middle opening of the upper insulation board is realized by the telescopic movement of the lower insulation board.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] (1) The particle lifting device of the present invention, combined with the coil magnetic field generator, enhances the controllability of particle flow rate during particle heating.

[0034] (2) The present invention uses a laser heater to improve the device’s ability to absorb high voltage electricity and improve the temperature uniformity of stored high-temperature solid particles.

[0035] (3) The present invention solves the problems of low particle heat transfer efficiency, large equipment footprint, and difficulty in controlling particle flow in the prior art. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the heating device structure of the present invention, which combines magnetic field particle lifting.

[0037] Figure 2 Schematic diagram of the main body of the thermal storage process device.

[0038] In the attached diagram: 1. High-temperature solid particle storage chamber; 2. Low-temperature solid particle storage chamber; 3. Electric telescopic support; 4. Bottom slope; 5. Sieve plate; 6. Particle lifting pipe; 7. Heat collection surface; 8. Outer shell; 9. Lifting insulation baffle; 10. Coil cooling air path; 11. Bottom air port; 12. Heat exchange pipeline; 13. Laser heater; 14. Upper insulation board; 15. Lower insulation board. Detailed Implementation

[0039] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0040] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0041] The present invention will now be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0042] refer to Figure 1 and Figure 2 A heating device combining magnetic field particle lifting includes a housing 8, within which a high-temperature solid particle storage chamber 1 and a low-temperature solid particle storage chamber 2 are disposed. The low-temperature solid particle storage chamber 2 is located below the high-temperature solid particle storage chamber 1, and the high-temperature solid particle storage chamber 1 and the low-temperature solid particle storage chamber 2 are separated by a switchable insulation plate. Particle lifting pipes 6 are provided between the inner wall of the housing 8 and the outer walls of both the high-temperature solid particle storage chamber 1 and the low-temperature solid particle storage chamber 2. A gap is left between the top of the high-temperature solid particle storage chamber 1 and the inner wall of the housing 8, forming a channel for solid particles to enter the high-temperature solid particle storage chamber, and the two ends of the gap are respectively connected to the particle lifting pipes 6 on both sides.

[0043] High-temperature solid particle storage chamber 1 is used to store heated high-temperature solid particles; the top of the high-temperature solid particle storage chamber 1 has an opening, and a liftable heat-insulating baffle 9 is provided at the opening.

[0044] Low-temperature solid particle storage chamber 2 is used to store solid particles that have released all their thermal energy.

[0045] The particle lifting pipe 6 is vertically arranged on both sides inside the outer shell 8, and its bottom end is connected to the lower side of the low temperature solid particle storage chamber 2 through a sieve plate, and its top end is connected to the gap between the top of the high temperature solid particle storage chamber 1 and the inner wall of the outer shell 8.

[0046] A magnetic field particle lifting device surrounds the outside of the particle lifting pipe 6 and is used to provide lifting force to the solid particles inside the particle lifting pipe.

[0047] Laser heating devices 13 are respectively installed on the outside of particle lifting pipe 6 and are used to heat solid particles located inside particle lifting pipe;

[0048] The heat exchange tube bundle 12 is installed inside the high-temperature solid particle storage chamber 1, with its upper end connected to the steam inlet and outlet and its lower end connected to the cold water inlet and outlet.

[0049] The coil cooling air passage 10 is installed on the outer wall of the particle lifting pipe 6, and the outlet of the cooling air passage is connected to the air port 11 at the bottom of the particle lifting pipe.

[0050] In one embodiment, the laser heating device 13 includes a plurality of laser heaters, which are arranged at intervals from top to bottom on a fixed support, and the laser emitting ends of the laser heaters are arranged opposite to the particle lifting pipe.

[0051] In one embodiment, the side of the particle lifting pipe 6 facing the laser heater is a transparent side; the side away from the laser heater is a heat-collecting surface 7, used to absorb excess photothermal energy.

[0052] In one embodiment, the magnetic field particle lifting device includes multiple coils that are spaced around the particle lifting pipe 6 and are interconnected.

[0053] In one embodiment, the lifting heat insulation baffle 9 includes a heat insulation baffle 91 and a lifting rod 92. One end of the lifting rod 92 is vertically installed on the top of the heat insulation baffle 91, and the other end is connected to a motor drive to realize the vertical movement of the heat insulation baffle 91.

[0054] In one embodiment, the bottom of the low-temperature solid particle storage chamber 2 is provided with a first inclined surface 41 and a second inclined surface 42. The solid particles on the first and second inclined surfaces enter the particle lifting pipe through the sieve plate under the action of gravity. The first inclined surface 41 and the second inclined surface 42 are arranged symmetrically with respect to the central axis of the low-temperature solid particle storage chamber. The first inclined surface 41 and the second inclined surface 42 have a first end and a second end, respectively. The first end is located obliquely above the second end and the first end of the first inclined surface is connected to the first end of the second inclined surface. The second end of the first inclined surface and the second end of the second inclined surface are respectively connected to the bottom end of the sieve plate 5.

[0055] In one embodiment, the outer shells of the high-temperature solid particle storage chamber 1 and the low-temperature solid particle storage chamber 2 are covered with an insulation layer.

[0056] In one embodiment, the transparent surface of the particle lifting pipe 6 is made of quartz or transparent ceramic material, which can withstand high temperatures above 300°C.

[0057] In one embodiment, the heat exchange tube bundle is arranged in a serpentine pattern from bottom to top along the inner cavity of the high-temperature solid particle storage chamber, with the upper and lower ends being the heat exchange medium inlet / outlet, respectively.

[0058] In one embodiment, the solid particulate material is magnetite, the particle size is related to the coil current, and the average particle mass is adapted to the magnitude of the magnetic field that the coil can provide.

[0059] In one embodiment, the insulation board has a two-layer telescopic structure. The upper insulation board 14 is fixed and has an opening in the middle. The lower insulation board 15 includes left and right opening and closing plates. The outer sides of the left and right opening and closing plates are respectively connected to the inner wall of the low-temperature solid particle storage chamber through electric telescopic brackets. During the heat storage and release process, the opening and closing of the middle opening of the upper insulation board 14 is realized by the telescopic movement of the lower insulation board 15.

[0060] The heating device of the present invention solves the following practical problems:

[0061] In the initial state, all equipment, as well as the lifting and insulated baffles and the lower insulation board 15, are in the closed state, and the low-temperature solid particles are stored in the low-temperature solid particle storage chamber 2. The solid particles are magnetite solid particles with uniform particle size.

[0062] The heat storage process begins, and the coil of the magnetic field particle lifting device is energized. Simultaneously, cooling gas is introduced into the coil cooling gas path 10, and the high-temperature gas at the outlet is introduced into the bottom air port 11 of the particle lifting pipe. The sieve plate 5 opens, and the low-temperature particles on the bottom inclined surface 4 pass through the sieve plate 5 under the action of gravity. The particles disperse and enter the particle lifting pipe. When flowing through the bottom air port 11, they come into direct contact with the high-temperature airflow for heat exchange and are blown upward. The magnetite solid particles, preheated by the high-temperature airflow, rise at a controllable speed in the particle lifting pipe under the action of the magnetic field generated by the coil 8 of the magnetic field particle lifting device.

[0063] When the laser heater 13 is turned on, the laser beam passes through the transparent surface 6 of the particle lifting pipe and heats the magnetite particles. The unabsorbed laser beam irradiates the heat collecting surface 7 of the particle lifting pipe, where the heat is absorbed by the heat collecting plate and reheats the solid particles, thus improving the utilization efficiency of the laser energy. In this embodiment, the laser heater is equipped with a fan for cooling.

[0064] The lifting-type heat-insulating baffle 9 rises to the top of the device, and the heated solid particles enter the high-temperature solid particle storage chamber 1 for storage. After all particles have been heated, the lifting-type heat-insulating baffle 9 descends to the top of the accumulated particles. The heat storage process ends, and the relevant equipment is shut down.

[0065] The heat release process begins when chilled water from the unit enters the heat exchange pipe 12 and is heated and evaporated by the high-temperature solid particles to produce steam. The outlet steam can be used for unit heating or to replace turbine extraction steam to increase the unit's power supply during peak hours. After all the heat from the high-temperature solid particles has been released, no more steam is produced. The heat exchange pipe 12 is closed, the switchable insulation plate 3 is opened, and the cooled solid particles fall into the low-temperature solid particle storage chamber 2 for storage. The switchable insulation plate 3 is then closed, the heat release process ends, and the unit awaits the start of the next cycle.

[0066] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0067] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0068] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0069] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0070] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0071] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A heating device combining magnetic field particle lifting, characterized in that, The application relates to a high-temperature solid particle storage device. The high-temperature solid particle storage device comprises a shell, a high-temperature solid particle storage bin and a low-temperature solid particle storage bin arranged in the shell, the low-temperature solid particle storage bin being arranged below the high-temperature solid particle storage bin, and the high-temperature solid particle storage bin and the low-temperature solid particle storage bin being separated by an openable heat preservation plate; particle lifting pipes are arranged between the inner side wall of the shell and the outer side walls of the high-temperature solid particle storage bin and the low-temperature solid particle storage bin; a gap is left between the top of the high-temperature solid particle storage bin and the inner wall of the shell, the gap forms a channel for solid particles to enter the high-temperature solid particle storage bin, and the two ends of the gap are communicated with the particle lifting pipes on the two sides; wherein: The high-temperature solid particle storage bin is used for storing high-temperature solid particles after heating; the top of the high-temperature solid particle storage bin is provided with an opening, and a heat preservation baffle capable of lifting is arranged at the opening; The low-temperature solid particle storage bin is used for storing solid particles after releasing heat energy, The particle lifting pipes are vertically arranged on the two sides inside the shell, the bottom ends of the particle lifting pipes are connected with the lower side of the low-temperature solid particle storage bin through sieve plates, and the top ends of the particle lifting pipes are communicated with the gap between the top of the high-temperature solid particle storage bin and the inner wall of the shell; A magnetic field particle lifting device is arranged outside the particle lifting pipes and is used for providing an upward force for the solid particles inside the particle lifting pipes; Laser heating devices are arranged outside the particle lifting pipes and are used for heating the solid particles inside the particle lifting pipes; A heat exchange pipe bundle is arranged inside the high-temperature solid particle storage bin, the upper end of the heat exchange pipe bundle is communicated with a steam inlet and outlet, and the lower end of the heat exchange pipe bundle is communicated with a cold water inlet and outlet; 2. A heating device in combination with a magnetic field particle lift according to claim 1, characterized in that, A coil cooling gas path is arranged on the outer wall of the particle lifting pipe, and the outlet of the coil cooling gas path is communicated with the bottom gas port of the particle lifting pipe.

3. A heating device in combination with a magnetic field particle lift according to claim 2, characterised in that, The laser heating device comprises a plurality of laser heaters, the plurality of laser heaters are arranged on a fixed support in a spaced manner from top to bottom, and the laser emission end of the laser heater is arranged opposite to the particle lifting pipe.

4. A heating device in combination with magnetic field particle lift according to claim 1, characterized by, The side of the particle lifting pipe opposite to the laser heater is a transparent side; the side of the particle lifting pipe away from the laser heater is a heat collecting side and is used for absorbing excess light heat.

5. A heating device in combination with magnetic field particle lift according to claim 1, characterized by, The magnetic field particle lifting device comprises a plurality of stage coils which are arranged on the particle lifting pipe in a spaced manner and are communicated with each other.

6. A heating device in combination with magnetic field particle lift according to claim 1, characterized by, The lifting heat preservation baffle comprises a heat preservation baffle and a lifting rod, one end of the lifting rod is vertically arranged on the top of the heat preservation baffle, the other end of the lifting rod is connected with a motor in a driving mode, and the vertical movement of the heat preservation baffle is realized.

7. A heating device in combination with a magnetic field particle lift according to claim 1, characterized by, The bottom of the low-temperature solid particle storage bin is provided with a first inclined surface and a second inclined surface, the solid particles on the first and second inclined surfaces enter the particle lifting pipes through the sieve plates under the action of gravity; the first and second inclined surfaces are symmetrically arranged relative to the central axis of the low-temperature solid particle storage bin, the first and second inclined surfaces respectively have first ends and second ends, the first end of the first inclined surface is located obliquely above the second end of the first inclined surface, the first end of the first inclined surface is connected with the first end of the second inclined surface, and the second end of the first inclined surface is connected with the second end of the second inclined surface.

8. The heating device of claim 1, wherein, The shell of the high-temperature solid particle storage bin and the low-temperature solid particle storage bin is wrapped with a heat preservation layer. The transparent side of the particle lifting pipe is made of quartz or transparent ceramic material and can resist high temperature above 300 DEG C.

9. A heating device in combination with a magnetic field particle lift according to claim 1, characterized by, The heat exchange tube bundle is arranged in a serpentine shape from bottom to top along the inner cavity of the high-temperature solid particle storage bin, and the upper and lower ends are respectively the heat exchange medium outlet / inlet.

10. The heating device of claim 1, wherein, The solid particle material is selected from magnetite, the solid particle size is related to the coil current, and the average mass of the particles is adapted to the size of the magnetic field provided by the coil.

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