Method and device for optimizing thermoelectric power generation of aluminum electrolysis cell through permanent magnet

Abstract

The invention discloses a method and device for optimizing thermoelectric power generation of an aluminum electrolysis cell through permanent magnets, and belongs to the technical field of energy conservation of aluminum electrolysis cells. The thermoelectric power generation device comprises an upper permanent magnet structure, a lower permanent magnet structure, a heat collector, a thermoelectric power generation device and a water-cooling radiator. The thermoelectric power generation device is installed on the side and the top of the aluminum electrolysis cell shell, and the internal magnetic field of the thermoelectric power generation device is regulated by changing the included angle between the upper permanent magnet structure and the lower permanent magnet structure. According to the method, a permanent magnet reverse compensation mode is used, the influence of a groove periphery magnetic field on the power generation performance of the thermoelectric power generation device is reduced, the power generation performance of the thermoelectric power generation device is improved, and the problem that the thermoelectric power generation device is low in energy conversion efficiency in a high-intensity magnetic field environment is solved.

Description

Technical Field

[0001] The invention belongs to the field of energy saving of aluminum electrolytic cells, and relates to a method and a device for permanently optimizing temperature difference power generation of aluminum electrolytic cells. Background Art

[0002] At present, the power consumption of the electrolytic aluminum industry to produce one ton of aluminum is about 13,000-14,000 kWh, which is much greater than the theoretical calculated value of 6,132 kWh, of which more than 50% of the energy is lost in the form of heat. During the production process of electrolytic aluminum, the internal melt temperature will reach above 950°C, and the temperature of the side wall of the tank shell will also reach above 280°C. At present, the main methods for recovering waste heat from the side of aluminum electrolytic cells are heat exchange technology, organic Rankine cycle technology and thermoelectric power generation technology [Wang Tong, Yang Chengliang, Cheng Jiuyuan, et al. Overview of waste heat recovery and utilization of aluminum electrolytic cells [J]. Shanxi Metallurgy, 2024, 47(06): 74-76+79.]. Among them, thermoelectric power generation technology is based on the Seebeck effect, which can directly convert heat energy into electrical energy, and it has no mechanical moving parts inside. Compared with heat exchange technology and organic Rankine technology, it has the advantages of high stability, longer service life, more stable heat dissipation power and higher energy utilization.

[0003] Patent CN116365925A installs the thermoelectric power generation system at the heat dissipation hole on the side wall of the aluminum electrolytic cell, and uses water cooling to cool the cold end of the thermoelectric power generation system. This solution can recover part of the waste heat, but ignores the weakening effect of the high magnetic field in the electrolysis workshop on the thermoelectric effect. Under the action of the magnetic field, the carriers inside the thermoelectric semiconductor material are affected by the Lorentz force and move to produce a deviation, resulting in a significant reduction in the output power of the power generation system. Patent CN118573052A discloses a thermoelectric power generation device for an aluminum electrolytic cell with a magnetic field shielding effect, which is equipped with a magnetic field shielding cover on the outside of the thermoelectric power generation device. The shielding cover made of iron alloy can well reduce the influence of the magnetic field, and can also shield magnetic fields of different intensities by adjusting the fastening parts. The invention improves the thermoelectric performance of semiconductor thermoelectric power generation devices, but because the heat dissipation fins at the hot end of the power generation device are also shielded by the shielding cover, the air convection heat exchange at the hot end is weakened, resulting in a reduction in the output power of the thermoelectric power generation system. Taking all factors into consideration, the actual waste heat conversion efficiency is low.

[0004] Through the above analysis, the problems and defects of the prior art are: the magnetic field intensity around the aluminum electrolysis cell is relatively high, which affects the movement of carriers and the transmission of current inside the thermoelectric power generation device, resulting in poor power generation performance and low energy utilization of the aluminum electrolysis cell thermoelectric power generation device. Summary of the invention

[0005] In view of the problems existing in the prior art, the present invention provides a method and device for thermoelectric power generation of aluminum electrolysis tanks with permanent magnet optimization. The magnetic field generated by the upper and lower permanent magnet structures of the device can compensate for the magnetic field generated by aluminum electrolysis at the position of the thermoelectric power generation device, reduce the influence of the magnetic field on the thermoelectric power generation device, and improve its power generation performance. At the same time, the adjustable angle between the upper and lower permanent magnet structures can change the intensity of the compensation magnetic field to achieve the effect of dynamic compensation.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A method and device for optimizing temperature difference power generation of an aluminum electrolytic cell with permanent magnets, wherein the collector, the temperature difference power generation device and the water-cooled radiator are connected by fastening components; the permanent magnets are respectively installed in the upper and lower structure frames in a square matrix arrangement; the upper permanent magnet structure, the lower permanent magnet structure, the collector and the water-cooled radiator are connected by a rotating support structure and a telescopic rod; the upper permanent magnet structure and the lower permanent magnet structure in the temperature difference power generation device generate a directional magnetic field through angle regulation, optimize the magnetic field in the temperature difference power generation device, and reduce the influence of the magnetic field around the slot on the power generation performance of the temperature difference power generation device.

[0008] Furthermore, the permanent magnet type is alloy permanent magnet material, ferrite permanent magnet material or rare earth permanent magnet material, the alloy permanent magnet material is one of aluminum nickel cobalt alloy and iron chromium cobalt alloy or a combination of two; the ferrite permanent magnet material is one of sintered ferrite, bonded ferrite and injection molded ferrite or a combination of at least two; the rare earth permanent magnet material is one of neodymium iron boron and samarium cobalt or a combination of two. Because ferromagnetic materials will interfere with the magnetic field generated by the permanent magnet, greatly reduce the surface magnetic induction intensity of the permanent magnet structure, and reduce the compensation effect of the permanent magnet structure;

[0009] Furthermore, the magnetic field strength of the permanent magnet ranges from 1000 to 20000 Gs;

[0010] Furthermore, both ends of the telescopic rod have positioning holes. In addition, the angle between the upper and lower permanent magnetic structures can be changed by adjusting the length of the telescopic rod to achieve the effect of shielding magnetic fields of different strengths. The adjustable angle between the upper and lower permanent magnetic structures is any angle between 0-180°.

[0011] Furthermore, the thermoelectric material in the temperature difference power generation device is one or a combination of two or more of bismuth telluride material, magnesium bismuth material, bismuth copper selenium oxygen material;

[0012] Furthermore, the material of the structural frame is one of nickel-chromium alloy, aluminum alloy, copper alloy, austenitic stainless steel, iron-manganese alloy, manganese-copper alloy, manganese-nickel alloy, and iron-chromium alloy, or a combination of two or more thereof;

[0013] Furthermore, the device is installed in the high-temperature area on the side and top of the aluminum electrolysis cell shell, and the waste heat utilization area of ​​the side shell of the aluminum electrolysis cell is in the range of 10-20m 2 .

[0014] Furthermore, the material of the water-cooled radiator is a high thermal conductivity material, and the internal cooling water flow rate can be adjusted to increase the power generation of the temperature difference power generation device. The material of the water-cooled radiator is aluminum alloy or copper alloy; the internal cooling water flow range of the water-cooled radiator is 0.12m 3 / h~0.6m 3 / h. The greater the cooling water flow rate, the higher the heat transfer efficiency between the water-cooled radiator and the thermoelectric power generation device, and the better the cooling effect on the thermoelectric power generation device.

[0015] Furthermore, the device is installed on the side shell of the aluminum electrolytic cell, the thermoelectric power generation device recovers the waste heat of the shell and converts the thermal energy into electrical energy, the upper and lower permanent magnetic structures sandwich the thermoelectric power generation device in the middle, and the magnetic field generated by the permanent magnetic structure reversely compensates the magnetic field at the position of the thermoelectric power generation device, reducing the influence of the magnetic field on the performance of the thermoelectric power generation and increasing the power generation of the thermoelectric power generation device.

[0016] The method and device for optimizing temperature difference power generation of aluminum electrolytic cell by permanent magnet of the present invention have the following advantages:

[0017] 1. The present invention is a method and device for optimizing the temperature difference power generation of aluminum electrolytic cells with permanent magnets. The device is installed on the side and top of the aluminum electrolytic cell shell, and the upper permanent magnet structure and the lower permanent magnet structure sandwich the temperature difference power generation device in the middle. When in use, the magnetic field generated by the upper and lower permanent magnet structures can compensate for the magnetic field at the position of the middle temperature difference power generation device, reduce the influence of the magnetic field on the power generation performance of the temperature difference power generation device, and increase the power generation of the temperature difference power generation device.

[0018] 2. The present invention is a method and device for optimizing temperature difference power generation of aluminum electrolytic cells with permanent magnets. The angle between the upper and lower permanent magnet structures can be changed by adjusting the length of the telescopic rod structure to achieve the effect of the permanent magnet structure compensating for magnetic fields of different intensities. The material of the permanent magnet in the permanent magnet structure can be replaced and selected from alloy permanent magnet materials, ferrite permanent magnet materials or rare earth permanent magnet materials to meet the temperature resistance requirements of different working environments. The magnetic field strength of the permanent magnet can be selected from 1000-12000Gs to regulate magnetic fields of different intensities.

[0019] 3 The present invention is a method and device for optimizing the temperature difference power generation of aluminum electrolytic cells with permanent magnets. The cooling water flow of the water-cooled radiator can be adjusted according to the different cooling requirements of the actual site to achieve different cooling effects. The adjustment range of the cooling water flow is 0.12m 3 / h~0.6m 3 / h.

[0020] The present invention is a method and device for optimizing the temperature difference power generation of aluminum electrolytic cells by permanent magnets. Compared with the existing aluminum electrolytic cell temperature difference power generation technology, the present invention has the following beneficial effects:

[0021] The present invention discloses a method and device for optimizing temperature difference power generation of an aluminum electrolytic cell with permanent magnets. The upper and lower permanent magnet structures composed of permanent magnets and a structural frame compensate for the magnetic field, which can effectively reduce the interference of the magnetic field of the aluminum electrolytic cell on the temperature difference power generation device and improve the power generation performance of the temperature difference power generation device of the aluminum electrolytic cell. In addition, the angle between the upper and lower permanent magnet structures can be changed by adjusting the length of the telescopic rod to achieve the effect of the permanent magnet structure compensating for magnetic fields of different intensities, and the permanent magnets in the permanent magnet structure can be replaced and selected from ferrite, neodymium iron boron and samarium cobalt to meet the requirements of different compensation strengths and the temperature resistance requirements of different working environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of a method and device for permanently optimizing temperature difference power generation in an aluminum electrolytic cell according to the present invention.

[0024] Figure 2 The front view and side view of a method and device for permanently optimizing temperature difference power generation in an aluminum electrolytic cell according to the present invention.

[0025] Figure 3 This is an explosion diagram of a method and device for permanently optimizing temperature difference power generation in an aluminum electrolytic cell according to the present invention.

[0026] Figure 4 This is a side view of a method and device for optimizing temperature difference power generation of aluminum electrolytic cells using permanent magnets in an embodiment of the present invention, wherein the angle between the upper and lower permanent magnet structures is 60°.

[0027] Figure 5 This is a side view of a method and device for optimizing temperature difference power generation of aluminum electrolytic cells using permanent magnets in an embodiment of the present invention, wherein the angle between the upper and lower permanent magnet structures is 90°.

[0028] Figure 6 This is a side view of a method and device for optimizing temperature difference power generation of aluminum electrolytic cells using permanent magnets in an embodiment of the present invention, wherein the angle between the upper and lower permanent magnet structures is 120°.

[0029] Description of reference numerals:

[0030] 1. Collector; 2. Thermal grease sheet; 3. Temperature difference power generation device; 4. Telescopic rod structure; 5. Upper permanent magnet structure; 51. Upper structure frame; 52. Upper permanent magnet; 6. Fastening components; 7. Water cooling radiator; 8. Lower permanent magnet structure; 81. Lower structure frame; 82. Lower permanent magnet. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] The present invention provides a method and device for optimizing the temperature difference power generation of aluminum electrolytic cells with permanent magnets. Figure 1 , Figure 2 as well as Figure 3 As shown, it includes a heat collector 1, a thermal grease sheet 2; a temperature difference power generation device 3; a telescopic rod structure 4; an upper permanent magnet structure 5; a fastening component 6; a water-cooled radiator 7; and a lower permanent magnet structure 8. The upper permanent magnet structure 5 includes an upper structure frame 51 and an upper permanent magnet 51; the lower permanent magnet structure 8 includes a lower structure frame 81 and a lower permanent magnet 82. The connection method of the device of the present invention is that the heat collector 1, the thermal grease sheet 2, the temperature difference power generation device 3 and the water-cooled radiator 7 are connected by a fastening component 6; the permanent magnets are respectively installed in the upper structure frame 51 and the lower structure frame 81 in a square matrix arrangement; the upper permanent magnet structure 5, the lower permanent magnet structure 8, the heat collector 1 and the water-cooled radiator 7 are connected by a telescopic rod structure 4. The device is installed on the side and top of the aluminum electrolytic cell shell. The thermoelectric power generation device recovers the waste heat of the cell shell and converts the thermal energy into electrical energy. The upper and lower permanent magnetic structures sandwich the thermoelectric power generation device in the middle. The magnetic field generated by the permanent magnetic structure reversely compensates for the magnetic field at the location of the thermoelectric power generation device, reducing the impact of the magnetic field on the performance of the thermoelectric power generation and increasing the power generation of the thermoelectric power generation device.

[0033] Example 1

[0034] The present invention provides a method and device for optimizing the temperature difference power generation of aluminum electrolytic cells with permanent magnets. The side view of the device is as follows: Figure 4The thermoelectric power generation device includes an upper permanent magnet structure, a lower permanent magnet structure, a collector, a thermoelectric power generation device and a water-cooled radiator; the permanent magnets in the upper permanent magnet structure and the lower permanent magnet structure are neodymium iron boron permanent magnets; the strength of the permanent magnets in the upper permanent magnet structure and the lower permanent magnet structure is 1000Gs; the angle between the upper permanent magnet structure and the lower permanent magnet structure is 60°; the thermoelectric material in the thermoelectric power generation device in the thermoelectric power generation device is bismuth telluride material; the frame structure material in the upper permanent magnet structure and the lower permanent magnet structure is aluminum alloy material; the installation position of the thermoelectric power generation device is the side and top of the aluminum electrolytic cell shell; the installation area of ​​the thermoelectric power generation device is 10m 2 ; The material of the water-cooled radiator is adjustable; The cooling water flow rate inside the water-cooled radiator is 0.12m 3 / h;

[0035] In this embodiment, the waste heat recovery target is a 400kA aluminum electrolytic cell of a certain enterprise. The waste heat utilization area of ​​the side and top of the electrolytic cell shell is 18m 2 The theoretical power generation capacity of conventional temperature difference power generation device is 4.2kW / m 2 The power generation obtained from the experimental test is only 0.8kW / m 2 The power generation capacity of the thermoelectric power generation device using the method described in the present invention is 2.3kW / m 2 Compared with conventional temperature difference power generation devices, the output power is increased by 187.5%.

[0036] Example 2

[0037] The present invention provides a method and device for optimizing the temperature difference power generation of aluminum electrolytic cells with permanent magnets. The side view of the device is as follows: Figure 5 The thermoelectric power generation device includes an upper permanent magnet structure, a lower permanent magnet structure, a collector, a thermoelectric power generation device and a water-cooled radiator; the permanent magnets in the upper permanent magnet structure and the lower permanent magnet structure are samarium cobalt permanent magnets; the strength of the permanent magnets in the upper permanent magnet structure and the lower permanent magnet structure is 20000Gs; the angle between the upper permanent magnet structure and the lower permanent magnet structure is 90°; the thermoelectric material in the thermoelectric power generation device in the thermoelectric power generation device is magnesium bismuth material; the frame structure material in the upper permanent magnet structure and the lower permanent magnet structure is aluminum alloy material; the installation position of the thermoelectric power generation device is the side and top of the aluminum electrolytic cell shell; the installation area of ​​the thermoelectric power generation device is 15m 2 ; The material of the water-cooled radiator is adjustable; The cooling water flow rate inside the water-cooled radiator is 0.3m 3 / h;

[0038] In this embodiment, the waste heat recovery target is a 400kA aluminum electrolytic cell of a certain enterprise. The waste heat utilization area of ​​the side and top of the electrolytic cell shell is 15m 2The theoretical power generation capacity of conventional temperature difference power generation device is 3.9kW / m 2 The power generation obtained from the experimental test is only 0.76kW / m 2 The power generation capacity of the thermoelectric power generation device using the method described in the present invention is 2.1kW / m 2 Compared with conventional temperature difference power generation devices, the output power is increased by 176.3%.

[0039] Example 3

[0040] The present invention provides a method and device for optimizing the temperature difference power generation of aluminum electrolytic cells with permanent magnets. The side view of the device is as follows: Figure 6 The thermoelectric power generation device includes an upper permanent magnet structure, a lower permanent magnet structure, a collector, a thermoelectric power generation device and a water-cooled radiator; the permanent magnets in the upper permanent magnet structure and the lower permanent magnet structure are neodymium iron boron permanent magnets; the strength of the permanent magnets in the upper permanent magnet structure and the lower permanent magnet structure is 8000Gs; the angle between the upper permanent magnet structure and the lower permanent magnet structure is 90°; the thermoelectric material in the thermoelectric power generation device in the thermoelectric power generation device is bismuth telluride material; the frame structure material in the upper permanent magnet structure and the lower permanent magnet structure is aluminum alloy material; the installation position of the thermoelectric power generation device is the side and top of the aluminum electrolytic cell shell; the installation area of ​​the thermoelectric power generation device is 15m 2 ; The material of the water-cooled radiator is adjustable; The cooling water flow rate inside the water-cooled radiator is 0.6m3 / h.

[0041] In this embodiment, the waste heat recovery target is a 400kA aluminum electrolytic cell of a certain enterprise. The waste heat utilization area of ​​the side and top of the electrolytic cell shell is 20m 2 The theoretical power generation capacity of conventional temperature difference power generation device is 4.3kW / m 2 The power generation obtained from the experimental test is only 0.91kW / m 2 The power generation capacity of the thermoelectric power generation device using the method described in the present invention is 2.9kW / m 2 Compared with conventional temperature difference power generation devices, the output power is increased by 218%.

[0042] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection: it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0043] The above contents are further detailed descriptions of the present invention in combination with specific implementation methods, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention.

Claims

1. A method and device for optimizing temperature difference power generation in aluminum electrolytic cells using permanent magnets, characterized in that: The thermoelectric power generation device comprises an upper permanent magnet structure, a lower permanent magnet structure, a heat collector, a thermoelectric power generation device and a water-cooled radiator; the permanent magnets in the upper permanent magnet structure and the lower permanent magnet structure are adjustable; the strength of the permanent magnets in the upper permanent magnet structure and the lower permanent magnet structure is adjustable; the angle between the upper permanent magnet structure and the lower permanent magnet structure is adjustable; the thermoelectric material in the thermoelectric power generation device in the thermoelectric power generation device is adjustable; the frame structure material in the upper permanent magnet structure and the lower permanent magnet structure is adjustable; the installation position of the thermoelectric power generation device is the side and top of the aluminum electrolytic cell shell; the installation area of ​​the thermoelectric power generation device is adjustable; the material of the water-cooled radiator is adjustable; the cooling water flow inside the water-cooled radiator is adjustable; The collector, the thermoelectric power generation device and the water-cooled radiator are connected by fastening components; the permanent magnets are respectively installed in the upper and lower structure frames in a square matrix arrangement; the upper permanent magnet structure, the lower permanent magnet structure, the collector and the water-cooled radiator are connected by a rotating support structure and a telescopic rod; the upper permanent magnet structure and the lower permanent magnet structure in the thermoelectric power generation device generate a directional magnetic field by adjusting the angle, optimize the magnetic field inside the thermoelectric power generation device, and reduce the influence of the magnetic field around the slot on the power generation performance of the thermoelectric power generation device.

2. A method and device for thermoelectric power generation by permanent magnet optimization of aluminum electrolysis cell according to claim 1, characterized in that: The permanent magnet is of alloy permanent magnet material, ferrite permanent magnet material or rare earth permanent magnet material. Preferably, the alloy permanent magnet material is one of aluminum-nickel-cobalt alloy and iron-chromium-cobalt alloy, or a combination of the two; Preferably, the ferrite permanent magnet material is one of sintered ferrite, bonded ferrite, injection molded ferrite, or a combination of at least two thereof; Preferably, the rare earth permanent magnet material is one of neodymium iron boron and samarium cobalt, or a combination of the two.

3. According to the method and device for optimizing temperature difference power generation of aluminum electrolytic cell with permanent magnets as described in claims 1 and 2, the magnetic field strength of the permanent magnets ranges from 1000 to 20000 Gs.

4. A method and device for optimizing temperature difference power generation of aluminum electrolytic cell by permanent magnet according to claims 1 to 3, characterized in that: The two ends of the telescopic rod are provided with positioning holes. In addition, the angle between the upper and lower permanent magnetic structures can be changed by adjusting the length of the telescopic rod to achieve the effect of shielding magnetic fields of different strengths. Preferably, the adjustable angle between the upper and lower permanent magnetic structures is any angle between 0 and 180 degrees.

5. A method and device for optimizing temperature difference power generation of aluminum electrolytic cell by permanent magnet according to claims 1 to 4, characterized in that: The thermoelectric material in the temperature difference power generation device is one of bismuth telluride material, magnesium bismuth material, bismuth copper selenium oxygen material, or a combination of two or more thereof.

6. A method and device for optimizing temperature difference power generation of aluminum electrolytic cell by permanent magnet according to claims 1 to 5, characterized in that: The structural frame is made of non-ferromagnetic material. Preferably, the material of the structural frame is one of nickel-chromium alloy, aluminum alloy, copper alloy, austenitic stainless steel, iron-manganese alloy, manganese-copper alloy, manganese-nickel alloy, and iron-chromium alloy, or a combination of two or more thereof.

7. A method and device for optimizing temperature difference power generation of aluminum electrolytic cell by permanent magnet according to claims 1 to 6, characterized in that: The device is installed in the high-temperature areas on the side and top of the aluminum electrolysis cell shell. Preferably, the waste heat utilization area of ​​the side shell of the aluminum electrolysis cell is in the range of 10-20m 2 .

8. A method and device for optimizing temperature difference power generation of aluminum electrolytic cell by permanent magnet according to claims 1 to 7, characterized in that: The water-cooled radiator is made of a high thermal conductivity material, and the flow rate of the cooling water inside it can be adjusted to increase the power generation of the temperature difference power generation device. Preferably, the water-cooling radiator is made of aluminum alloy or copper alloy; Preferably, the cooling water flow rate range of the water-cooled radiator is 0.12m 3 / h~0.6m 3 / h.

9. A method and device for optimizing temperature difference power generation of aluminum electrolytic cell by permanent magnet according to claims 1 to 8, characterized in that: The device is installed on the side shell of the aluminum electrolytic cell. The thermoelectric power generation device recovers waste heat from the shell and converts thermal energy into electrical energy. The upper and lower permanent magnetic structures sandwich the thermoelectric power generation device in the middle. The magnetic field generated by the permanent magnetic structure reversely compensates for the magnetic field at the position of the thermoelectric power generation device, reducing the influence of the magnetic field on the performance of the thermoelectric power generation and increasing the power generation of the thermoelectric power generation device.

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