Thermoelectric power generation device based on heat accumulator

Abstract

The utility model discloses a thermoelectric power generation device based on a heat accumulator, which relates to the technical field of thermoelectric power generation and comprises the heat accumulator and a heat exchange tube, the heat exchange tube is arranged in the heat accumulator, one end of the heat exchange tube is a water inlet, and the other end of the heat exchange tube is a water outlet; the heat conduction part is arranged on the heat exchange pipe and used for guiding heat of the heat accumulator into the heat exchange pipe; the power generation part comprises a first heat conduction insulator, a second heat conduction insulator, a first electric conductor, a second electric conductor, a semiconductor temperature difference power generation module, a voltage stabilizer, a transformer and a user side; the heat dissipation part is arranged at the cold water inlet end of the heat exchange tube; the sensor assembly is arranged on the heat conduction part, the heat dissipation part and the water inlet; the control module is connected with the sensor assembly and the heat exchange pipe. Heat energy of waste heat stored by the heat accumulator is directly converted into electric energy through the thermoelectric power generation device, the cost is low, unnecessary energy loss is reduced, the waste heat utilization range is further wider, and the utilization efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of thermoelectric power generation technology, and more specifically, to a thermoelectric power generation device based on a thermal accumulator. Background Technology

[0002] Thermoelectric power generation is based on the Seebeck effect, utilizing the Seebeck effect of thermoelectric materials to generate electricity through the movement of charge carriers within the materials. Semiconductor materials are the most widely used. A PN junction is formed by connecting one end of a P-type material and a FIN-type material (FIN-type material usually refers to a semiconductor structure), placing them at a high temperature and the other end at a low temperature. Due to thermal excitation, the carrier concentration at the high-temperature end of the P(N)-type material is higher than that at the low-temperature end, creating a concentration difference. Charge carriers then diffuse towards the low-temperature end, creating a potential difference at the open-circuit end, thus completing the thermoelectric conversion. Placing the junction of the two semiconductors at a high temperature and the other end at a low temperature yields an electromotive force E: E = αΔT = α(T2 - T1); where α is the Seebeck coefficient, with units of V / K or μV / K, determined by the electronic band structure of the materials themselves; T2 is the temperature of the high-temperature end; and T1 is the temperature of the low-temperature end. A larger temperature difference ΔT results in a higher electromotive force.

[0003] The main factors improving power generation efficiency are twofold: the performance of thermoelectric materials and the amount of heat dissipation at the cold end. The performance of thermoelectric materials: The core of a thermoelectric power generation system lies in the selection of thermoelectric materials. High-performance thermoelectric materials can significantly improve power generation efficiency. Heat dissipation at the cold end: According to the Seebeck effect, the greater the temperature difference between the hot and cold ends, the higher the power generation efficiency. Since the hot end is recovered industrial waste heat, its temperature generally remains constant. Therefore, the key is to reduce the temperature at the cold end; that is, how to better dissipate heat at the cold end is what we need to consider. Currently, the main heat dissipation methods are liquid cooling, air cooling, and phase change cooling. Liquid cooling is more effective than air cooling because the specific heat of liquids is much greater than that of gases, meaning that the same unit volume of liquid can carry away more heat than gas. The convective heat transfer coefficient is related to the flow velocity; the higher the flow velocity, the greater the convective heat transfer coefficient. The cooling and cooled liquids exchange heat through a heat exchanger, with shell-and-tube heat exchangers being commonly used, providing excellent heat dissipation.

[0004] Since the Seebeck effect was discovered in 1821, extensive research and significant achievements have been made abroad regarding thermoelectric power generation. However, research in this area in my country started relatively late, primarily focusing on theoretical studies and the preparation of thermoelectric materials. Early thermoelectric power generation technology was mainly applied in aerospace and military fields, where cost requirements were not high, and even higher costs were acceptable. With the emergence of high-performance thermoelectric materials, the cost of thermoelectric power generation systems has been greatly reduced, allowing for applications in industry and civilian sectors. Although costs have decreased, the technology is still relatively immature, and widespread adoption and use have not yet been achieved; only a small number of enterprises and research institutions have been able to utilize this technology. As early as 1984, Tokyo Electric Power Company in Japan designed and manufactured a thermoelectric generator unit that utilized industrial waste heat. During research in my country, Wang Zuomin concluded through efficiency analysis that thermoelectric power generation technology could improve the overall efficiency of thermal power plants. However, to date, the application of thermoelectric power generation technology in my country's industrial production remains limited.

[0005] Therefore, it is necessary to provide a thermoelectric power generation device based on a thermal storage device to solve the problem of high cost of existing thermoelectric power generation devices. Utility Model Content

[0006] In view of this, the present invention proposes a thermoelectric power generation device based on a thermal storage device, aiming to solve the problem of high cost of existing thermoelectric power generation devices.

[0007] On the one hand, this utility model proposes a thermoelectric power generation device based on a thermal storage device, comprising:

[0008] A heat accumulator and a heat exchange tube, wherein the heat accumulator is equipped with a heat exchange tube, one end of which is a water inlet and the other end is a water outlet;

[0009] A heat-conducting part is provided on the heat exchange tube, and the heat-conducting part is used to introduce the heat of the accumulator into the heat exchange tube;

[0010] The power generation unit includes a first thermally conductive insulator, a second thermally conductive insulator, a first conductive body, a second conductive body, a semiconductor thermoelectric power generation module, a voltage regulator, a transformer, and a user terminal. One side of the first thermally conductive insulator is connected to the thermally conductive part, and the other side of the first thermally conductive insulator is connected to one side of the first conductive body. The side of the first conductive body away from the first thermally conductive insulator is connected to the semiconductor thermoelectric power generation module. The side of the semiconductor thermoelectric power generation module away from the first thermally conductive insulator is connected to the second conductive body. The voltage regulator is connected to the second conductive body. The transformer is connected to the voltage regulator. The user terminal is connected to the voltage regulator. The second thermally conductive insulator is disposed on the side of the second conductive body away from the semiconductor thermoelectric power generation module.

[0011] A heat dissipation section is provided at the cold water inlet end of the heat exchange tube. The heat dissipation section is connected to the side of the second thermally conductive insulator away from the semiconductor thermoelectric power generation module. The heat dissipation section is used to dissipate heat from the cold end of the semiconductor thermoelectric power generation module.

[0012] A sensor assembly is installed on the heat-conducting part, the heat dissipation part, and the water inlet. The sensor assembly is used to monitor the real-time information of the thermoelectric power generation device of the thermal accumulator.

[0013] A control module is connected to both the sensor assembly and the heat exchange tube, and the control module is used to control the operation of the heat exchange tube based on the real-time information.

[0014] Furthermore, the heat-conducting part includes:

[0015] A plurality of heat pipes are provided, and the plurality of heat pipes are respectively disposed in the heat accumulator;

[0016] A heat collection plate is connected to the heat conduction pipe on one side, and the end of the heat collection plate away from the heat conduction pipe is fixedly connected to the heat exchange pipe.

[0017] Furthermore, the heat dissipation unit includes:

[0018] A heat sink is disposed on the heat exchange tube, and one side of the heat sink is connected to the side of the second thermally conductive insulator away from the second electrical conductor.

[0019] A plurality of heat sinks are provided, and the plurality of heat sinks are provided on the side of the heat sink away from the second thermally conductive insulator.

[0020] Furthermore, the sensor assembly includes:

[0021] Two temperature sensors are provided, one on the heat collection plate and the other on the heat dissipation plate. The temperature sensors are used to monitor the heat collection temperature and the heat dissipation temperature.

[0022] A flow meter is installed at the water inlet, and the flow meter is used to monitor the flow information of the heat exchange tube inlet.

[0023] Furthermore, the control module includes:

[0024] The data acquisition unit is used to acquire the heat collection temperature, heat dissipation temperature, flow rate information and power generation monitored by the temperature sensor and the flow meter, and to determine the initial flow rate of the heat exchange tube based on the heat collection temperature and heat dissipation temperature.

[0025] The judgment unit is used to determine whether to adjust the initial flow rate based on the power generation. If the determination is to adjust, the initial flow rate is adjusted according to the heat collection temperature and the heat dissipation temperature to obtain the final flow rate.

[0026] The early warning unit is used to determine whether the thermoelectric generator based on the thermal storage device has malfunctioned based on the temperature difference between the heat collection temperature and the heat dissipation temperature under the final flow rate and the power generation. If a malfunction occurs, an early warning is issued.

[0027] Furthermore, when the acquisition unit determines the initial flow rate of the heat exchange tube based on the heat collection temperature and the heat dissipation temperature, it includes:

[0028] Set the standard deviation between the heat collection temperature and the heat dissipation temperature, and the flow rate value corresponding to the standard deviation;

[0029] Calculate the initial difference between the initial heat collection temperature and the initial heat dissipation temperature. Set the initial flow rate based on the ratio of the initial difference to the standard deviation. Calculate the initial flow rate using the following formula:

[0030] Q0=Q×[(T j -T s ) / ΔT b ];

[0031] In the above formula, Q0 represents the initial flow rate, Q represents the flow rate value corresponding to the standard deviation, and T... j T represents the heat collection temperature. s Indicates the heat dissipation temperature, ΔT b This represents the standard deviation.

[0032] Furthermore, when the determination unit determines whether to adjust the initial flow rate based on the power generation, it includes:

[0033] Set the standard power generation per unit time, obtain the real-time power generation per unit time of the thermal energy storage-based thermoelectric power generation device, and if the real-time power generation is greater than or equal to the standard power generation, then determine that the initial flow rate will not be adjusted and the initial flow rate will be used as the final flow rate.

[0034] If the real-time power generation is less than the standard power generation, then it is determined that the initial flow rate should be adjusted to obtain the final flow rate.

[0035] Furthermore, if the real-time power generation is less than the standard power generation, then when determining to adjust the initial flow rate to obtain the final flow rate, the following steps are taken:

[0036] A first power generation, a second power generation, a first adjustment coefficient, a second adjustment coefficient, and a third adjustment coefficient are preset; wherein, the first power generation is less than the second power generation, the second power generation is less than the standard power generation, the first adjustment coefficient is greater than the second adjustment coefficient, the second adjustment coefficient is greater than the third adjustment coefficient, and the first adjustment coefficient is less than or equal to 1.5, and the third adjustment coefficient is greater than 1.

[0037] If the real-time power generation is less than the first power generation, it is determined that the initial flow rate should be adjusted using the first adjustment coefficient.

[0038] If the real-time power generation is greater than or equal to the first power generation and less than or equal to the second power generation, then it is determined that the initial flow rate is adjusted by the second adjustment coefficient.

[0039] If the real-time power generation is greater than the second power generation, it is determined that the initial flow rate should be adjusted using the third adjustment coefficient.

[0040] Furthermore, the early warning unit is used to determine whether the thermoelectric generator based on the thermal storage unit has malfunctioned based on the temperature difference between the heat collection temperature and the heat dissipation temperature at the final flow rate and the power generation. If a malfunction occurs, an early warning is issued, including:

[0041] Set the standard temperature difference range and minimum power generation value;

[0042] If the temperature difference is within the standard temperature difference range and the power generation is greater than the minimum power generation value, then no fault warning will be issued;

[0043] If the temperature difference is within the standard temperature difference range and the power generation is less than or equal to the minimum power generation value, then it is determined that the temperature difference power generation device based on the thermal storage device has malfunctioned, and a fault warning is issued.

[0044] Compared with existing technologies, the beneficial effects of this invention are as follows: By converting low-grade industrial waste heat from a heat storage device into electrical energy, the device can significantly improve energy utilization, reduce energy waste, and achieve sustainable development goals. Its heat-conducting part effectively guides heat into the heat exchange tubes, ensuring efficient heat transfer; while the power generation part converts temperature difference into electrical energy through a semiconductor thermoelectric power generation module, ensuring the stability and efficiency of the power generation process. Furthermore, sensor components monitor key information such as temperature and flow rate in real time, providing data support to the control module, enabling it to dynamically adjust the operating status of the heat exchange tubes to cope with different operating conditions. This intelligent management not only improves power generation efficiency but also provides timely fault warnings, ensuring the safe and stable operation of the device. In summary, this device not only possesses economic and environmental friendliness but also enhances the level of intelligent energy management, meeting the requirements of modern industry for high efficiency and sustainable development.

[0045] This invention directly converts the thermal energy stored in a thermal accumulator into electrical energy using a thermoelectric generator, reducing unnecessary energy loss and expanding the scope and efficiency of waste heat utilization. The thermoelectric generator is located inside the thermal accumulator at the inlet of the heat exchange tube, adjacent to the inner wall of the accumulator. The heat-conducting part is located inside the accumulator, and the heat-dissipating part is located inside the heat exchange tube. The semiconductor thermoelectric generator module is located between the heat-conducting and heat-dissipating parts and embedded in the heat exchange tube wall. Because the temperature inside the thermal accumulator is relatively stable, the temperature of the cold water entering the accumulator through the heat exchange tube is also relatively stable, ensuring a stable temperature difference between the hot and cold ends of the semiconductor thermoelectric generator module, thus improving the efficiency and stability of thermoelectric power generation. Placing the heat sink and fins at the cold water inlet inside the heat exchange tube eliminates the need for a separate heat sink and effectively recovers dissipated heat, significantly improving energy efficiency.

[0046] On the other hand, this utility model application also provides a thermoelectric power generation method based on a thermal storage device, comprising:

[0047] Sensor components are installed on the heat conduction part, heat dissipation part and water inlet to monitor the real-time information of the thermoelectric power generation device of the thermal accumulator.

[0048] Collect heat collection temperature, heat dissipation temperature, flow rate information and power generation, and determine the initial flow rate of the heat exchange tube based on the heat collection temperature and heat dissipation temperature;

[0049] The initial flow rate is adjusted based on the power generation. If it is determined that it should be adjusted, the initial flow rate is adjusted according to the heat collection temperature and the heat dissipation temperature to obtain the final flow rate.

[0050] Based on the temperature difference between the heat collection temperature and the heat dissipation temperature at the final flow rate and the power generation, it is determined whether the thermoelectric power generation device based on the thermal storage has malfunctioned, and if a malfunction occurs, an early warning is issued.

[0051] It is understood that the thermoelectric power generation device based on a thermal accumulator provided in this utility model application has the same beneficial effects, and will not be described in detail here. Attached Figure Description

[0052] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0053] Figure 1 A schematic diagram of the structure of a thermoelectric power generation device based on a thermal storage device provided in an embodiment of this utility model;

[0054] Figure 2 for Figure 1 Enlarged detail view of point A in the middle;

[0055] Figure 3 A flowchart of a thermoelectric power generation method based on a thermal accumulator provided for an embodiment of this utility model;

[0056] In the diagram, 100 is the heat accumulator; 200 is the heat exchange tube; 210 is the water inlet; 220 is the water outlet; 300 is the heat-conducting part; 310 is the heat-conducting pipe; 320 is the heat collector plate; 400 is the power generation part; 410 is the first thermally conductive insulator; 420 is the second thermally conductive insulator; 430 is the first conductor; 440 is the second conductor; 450 is the semiconductor thermoelectric generator module; 460 is the voltage regulator; 470 is the transformer; 480 is the user terminal; 500 is the heat dissipation part; 510 is the heat dissipation plate; 520 is the heat sink; 600 is the sensor assembly; 610 is the temperature sensor; 620 is the flow meter; and 700 is the control module. Detailed Implementation

[0057] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, embodiments and features of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0058] In some embodiments of this utility model application, see Figure 1-2 As shown, this embodiment provides a thermoelectric power generation device based on a thermal storage device 100, including:

[0059] The heat accumulator 100 and the heat exchange tube 200 are provided inside the heat accumulator 100. One end of the heat exchange tube 200 is the water inlet 210 and the other end is the water outlet 220.

[0060] A heat-conducting part 300 is provided on the heat exchange tube 200. The heat-conducting part 300 is used to conduct heat from the heat accumulator 100 into the heat exchange tube 200.

[0061] The power generation unit 400 includes a first thermally conductive insulator 410, a second thermally conductive insulator 420, a first conductor 430, a second conductor 440, a semiconductor thermoelectric power generation module 450, a voltage regulator 460, a transformer 470, and a user terminal 480. One side of the first thermally conductive insulator 410 is connected to the heat-conducting unit 300, and the other side of the first thermally conductive insulator 410 is connected to one side of the first conductor 430. The side of the first conductor 430 away from the first thermally conductive insulator 410 is connected to the semiconductor thermoelectric power generation module 450. The side of the semiconductor thermoelectric power generation module 450 away from the first thermally conductive insulator 410 is connected to the second conductor 440. The voltage regulator 460 is connected to the second conductor 440. The transformer 470 is connected to the voltage regulator 460. The user terminal 480 is connected to the voltage regulator 460. The second thermally conductive insulator 420 is disposed on the side of the second conductor 440 away from the semiconductor thermoelectric power generation module 450.

[0062] The heat dissipation part 500 is provided at the cold water inlet end of the heat exchange tube 200. The heat dissipation part 500 is connected to the side of the second thermally conductive insulator 420 away from the semiconductor thermoelectric power generation module 450. The heat dissipation part 500 is used to dissipate heat from the cold end of the semiconductor thermoelectric power generation module 450.

[0063] The sensor assembly 600 is disposed on the heat-conducting part 300, the heat dissipation part 500 and the water inlet 210. The sensor assembly 600 is used to monitor the real-time information of the thermoelectric power generation device of the heat storage unit 100.

[0064] The control module 700 is connected to the sensor assembly 600 and the heat exchange tube 200 respectively. The control module 700 is used to control the operation of the heat exchange tube 200 according to real-time information.

[0065] It is understood that this utility model application, by converting the low-grade industrial waste heat of the heat storage device 100 into electrical energy, can significantly improve energy utilization efficiency, reduce energy waste, and achieve sustainable development goals. Its heat-conducting part 300 effectively guides heat into the heat exchange tube 200, ensuring efficient heat transfer; while the power generation part 400 converts the temperature difference into electrical energy through the semiconductor thermoelectric power generation module 450, ensuring the stability and efficiency of the power generation process. Furthermore, the sensor assembly 600 monitors key information such as the device's temperature and flow rate in real time, providing data support to the control module 700, enabling it to dynamically adjust the operating status of the heat exchange tube 200 to cope with different operating conditions. This intelligent management not only improves power generation efficiency but also provides timely fault warnings, ensuring the safe and stable operation of the device. In summary, this device not only possesses economic and environmental friendliness but also enhances the level of intelligent energy management, meeting the requirements of modern industry for high efficiency and sustainable development.

[0066] Specifically, the thermal energy stored in the heat storage tank 100 is directly converted into electrical energy through a thermoelectric generator, reducing unnecessary energy loss and expanding the scope and efficiency of waste heat utilization. The thermoelectric generator is located at the inlet 210 of the heat exchange tube 200 inside the heat storage tank 100, adjacent to the inner wall of the heat storage tank 100. The heat conduction pipe 310 and the heat collection plate 320 are located inside the heat storage tank 100, the heat sink 520 and the heat dissipation plate 510 are located inside the heat exchange tube 200, and the semiconductor thermoelectric generator module 450 is located in the heat conduction section 30. The heat exchanger 500 and the heat sink 500 are embedded in the wall of the heat exchange tube 200. Since the internal temperature of the heat storage unit 100 is relatively stable, the temperature of the cold water entering the heat storage unit 100 through the heat exchange tube 200 is also relatively stable. This ensures a stable temperature difference between the hot and cold ends of the thermoelectric power generation module 450, improving the efficiency and stability of thermoelectric power generation. Placing the heat sink 510 and the heat sink 520 at the cold water inlet end inside the heat exchange tube 200 eliminates the need for a separate heat sink and effectively recovers the dissipated heat, greatly improving energy efficiency.

[0067] In some embodiments of this utility model application, the heat-conducting part 300 includes:

[0068] Several heat pipes 310 are provided, and several heat pipes 310 are respectively installed in the heat accumulator 100;

[0069] The heat collection plate 320 is connected to the heat conduction pipe 310 on one side, and the end of the heat collection plate 320 away from the heat conduction pipe 310 is fixedly connected to the heat exchange pipe 200.

[0070] In some embodiments of this application, the heat dissipation unit 500 includes:

[0071] A heat sink 510 is disposed on the heat exchange tube 200, and one side of the heat sink 510 is connected to the side of the second thermally conductive insulator 420 away from the second conductor 440.

[0072] Several heat sinks 520 are provided, and several heat sinks 520 are provided on the side of heat sink 510 away from the second thermally conductive insulator 420.

[0073] In some embodiments of this utility model application, the sensor assembly 600 includes:

[0074] There are two temperature sensors 610, which are respectively installed on the heat collection plate 320 and the heat dissipation plate 510. The temperature sensors 610 are used to monitor the heat collection temperature and the heat dissipation temperature.

[0075] The flow meter 620 is installed at the inlet 210 and is used to monitor the flow information at the inlet 210 of the heat exchange tube 200.

[0076] Understandably, the heat pipe 310 of this invention enables the effective transfer of heat from the heat storage unit 100 to the heat collector plate 320, ensuring full utilization of heat and improving power generation efficiency. Simultaneously, the tight connection between the heat collector plate 320 and the heat exchange pipe 200 further enhances heat conduction performance. The heat dissipation unit 500, through the heat dissipation plate 510 and multiple heat sinks 520, enhances heat dissipation from the cold end of the thermoelectric power generation module 450, preventing overheating and ensuring stable operation of the device. Furthermore, the introduction of the sensor assembly 600, particularly the temperature sensor 610 and the flow meter 620, makes real-time monitoring possible, enabling precise control of temperature changes and flow rates during heat collection and dissipation, thus providing data support for dynamic adjustments to the device. This combination of efficient thermal management and real-time monitoring not only improves power generation efficiency but also enhances the safety and reliability of the device, meeting the high requirements of modern industry for energy utilization and equipment management.

[0077] In some embodiments of this utility model application, the control module 700 includes:

[0078] The data acquisition unit is used to acquire the heat collection temperature, heat dissipation temperature, flow rate information and power generation information monitored by the temperature sensor 610 and the flow meter 620, and to determine the initial flow rate of the heat exchange tube 200 based on the heat collection temperature and heat dissipation temperature.

[0079] The judgment unit is used to determine whether to adjust the initial flow rate based on the power generation. If the judgment is to adjust, the initial flow rate is adjusted according to the heat collection temperature and the heat dissipation temperature to obtain the final flow rate.

[0080] The early warning unit is used to determine whether the thermoelectric generator based on the thermal storage unit 100 has malfunctioned based on the temperature difference between the heat collection temperature and the heat dissipation temperature under the final flow rate and the power generation. If a malfunction occurs, an early warning will be issued.

[0081] Understandably, the introduction of the data acquisition unit in this invention enables real-time acquisition of monitoring data from the temperature sensor 610 and flow meter 620, thereby accurately grasping the heat collection and dissipation status and ensuring the accurate setting of the initial flow rate of the heat exchange tube 200. This data-driven flow adjustment helps optimize the flow rate based on actual power generation, allowing the device to maintain optimal operating conditions under different operating circumstances. Secondly, the judgment unit can dynamically adjust the flow rate based on real-time power generation, ensuring maximum power generation efficiency while avoiding energy loss due to improper flow. Finally, the early warning unit monitors the final flow rate and temperature difference to promptly detect potential faults and issue warnings, enhancing the system's safety and reliability. Integrated control not only improves the device's performance but also provides assurance for equipment maintenance and management, meeting the high requirements of modern industry for intelligence and safety.

[0082] Specifically, real-time information includes collector temperature, heat dissipation temperature, flow rate, and power generation.

[0083] In some embodiments of this utility model application, when the data acquisition unit determines the initial flow rate of the heat exchange tube 200 based on the heat collection temperature and the heat dissipation temperature, it includes:

[0084] Set the standard deviation between the heat collection temperature and the heat dissipation temperature, and the flow rate value corresponding to the standard deviation;

[0085] Calculate the initial difference between the initial collector temperature and the initial heat dissipation temperature. Set the initial flow rate based on the ratio of the initial difference to the standard deviation. Calculate the initial flow rate using the following formula:

[0086] Q0=Q×[(T j -T s ) / ΔT b ];

[0087] In the above formula, Q0 represents the initial flow rate, Q represents the flow rate value corresponding to the standard deviation, and T... j T represents the heat collection temperature. s Indicates the heat dissipation temperature, ΔT b This represents the standard deviation.

[0088] In some embodiments of this utility model application, when the determining unit is used to determine whether to adjust the initial flow rate based on the power generation, it includes:

[0089] Set the standard power generation per unit time, obtain the real-time power generation per unit time of the thermoelectric power generation device based on the thermal storage device 100, and if the real-time power generation is greater than or equal to the standard power generation, then determine that the initial flow rate will not be adjusted and the initial flow rate will be used as the final flow rate.

[0090] If the real-time power generation is less than the standard power generation, the initial flow rate will be adjusted to obtain the final flow rate.

[0091] In some embodiments of this utility model application, if the real-time power generation is less than the standard power generation, and it is determined that the initial flow rate should be adjusted to obtain the final flow rate, the following steps are included:

[0092] The first power generation, the second power generation, the first adjustment coefficient, the second adjustment coefficient, and the third adjustment coefficient are preset; wherein, the first power generation is less than the second power generation, the second power generation is less than the standard power generation, the first adjustment coefficient is greater than the second adjustment coefficient, the second adjustment coefficient is greater than the third adjustment coefficient, and the first adjustment coefficient is less than or equal to 1.5, and the third adjustment coefficient is greater than 1.

[0093] If the real-time power generation is less than the first power generation, then it is determined that the initial flow rate should be adjusted using the first adjustment coefficient;

[0094] If the real-time power generation is greater than or equal to the first power generation and less than or equal to the second power generation, then it is determined that the initial flow rate should be adjusted by the second adjustment coefficient.

[0095] If the real-time power generation is greater than the second power generation, then the initial flow rate will be adjusted using the third adjustment coefficient.

[0096] Understandably, the acquisition unit of this invention utilizes the standard difference between the heat collection temperature and the heat dissipation temperature, combined with the actual temperature difference, to accurately calculate the initial flow rate. This allows the device to flexibly adjust the flow rate according to real-time heat changes, thereby ensuring optimal heat conversion and power generation efficiency. Secondly, the judgment unit ensures the high efficiency and stability of the device during operation by setting a standard power generation and monitoring the power generation in real time. When the real-time power generation is lower than the standard value, the device can automatically adjust the flow rate dynamically according to a preset adjustment coefficient. This multi-level adjustment allows the device to maintain excellent power generation performance under different loads and environmental conditions. Furthermore, by setting graded adjustment coefficients, the flow rate adjustment strategy can be refined, ensuring that the device can respond and adapt quickly to changes in power generation, reducing energy loss. This intelligent control method not only improves the operating efficiency of the device but also enhances its reliability, meeting the needs of modern energy management.

[0097] In some embodiments of this utility model application, the early warning unit is used to determine whether the thermoelectric power generation device based on the thermal storage 100 has malfunctioned based on the temperature difference between the heat collection temperature and the heat dissipation temperature at the final flow rate and the power generation. If a malfunction occurs, an early warning is issued, including:

[0098] Set the standard temperature difference range and minimum power generation value;

[0099] If the temperature difference is within the standard temperature difference range and the power generation is greater than the minimum power generation value, no fault warning will be issued.

[0100] If the temperature difference is within the standard temperature difference range and the power generation is less than or equal to the minimum power generation value, then it is determined that the thermoelectric power generation device based on the thermal storage device 100 has malfunctioned, and a fault warning is issued.

[0101] Understandably, the early warning unit of this invention can monitor the temperature difference between the heat collection temperature and the heat dissipation temperature in real time, ensuring it remains within the standard range, thereby verifying the normal operation of the device. If the temperature difference is within the standard range and the power generation is greater than the set minimum value, the device can be effectively judged to be normal, without needing to trigger an early warning. This intelligent judgment not only reduces unnecessary alarms and improves the user experience but also reduces operating costs caused by false alarms. On the other hand, if the power generation is lower than the minimum value, even if the temperature difference is normal, the system can still quickly identify potential faults and issue timely warnings, ensuring that users can take timely measures to avoid greater losses. This dual monitoring method makes the thermoelectric generator safer and more reliable during operation, providing strong support for improving the management and maintenance level of the equipment.

[0102] On the other hand, see Figure 3 As shown, this application also provides a thermoelectric power generation method based on a thermal storage device, applied to the aforementioned thermoelectric power generation device based on a thermal storage device, comprising the following steps:

[0103] S100: Sensor components are installed on the heat conduction part, heat dissipation part and water inlet to monitor the real-time information of the thermoelectric generator of the heat storage unit.

[0104] S200: Collects heat collection temperature, heat dissipation temperature, flow rate information and power generation, and determines the initial flow rate of the heat exchange tube based on the heat collection temperature and heat dissipation temperature.

[0105] S300: Determine whether to adjust the initial flow rate based on the power generation. If it is determined to be adjusted, adjust the initial flow rate according to the heat collection temperature and heat dissipation temperature to obtain the final flow rate.

[0106] S400: Based on the temperature difference between the heat collection temperature and the heat dissipation temperature under the final flow rate and the power generation, determine whether the thermoelectric generator based on the thermal storage has malfunctioned, and issue an early warning if a malfunction occurs.

[0107] Understandably, this invention achieves real-time monitoring of equipment information by installing sensor components in the heat-conducting part, heat-dissipating part, and water inlet, providing a foundation for subsequent data acquisition and analysis. Secondly, real-time monitoring of the heat collection temperature, heat dissipation temperature, and flow rate information accurately determines the initial flow rate of the heat exchange tube, thereby optimizing the heat transfer process. Thirdly, continuous monitoring of power generation allows for flexible judgment on whether adjustments to the initial flow rate are needed, and dynamic optimization based on the actual temperature difference; this feedback mechanism ensures maximum power generation efficiency. Finally, early warning systems can promptly identify potential faults, ensuring the safe operation of the equipment. Overall, this invention not only improves the operating efficiency of the thermoelectric power generation device but also enhances its fault monitoring and self-regulation capabilities, laying the foundation for more efficient energy utilization and management.

[0108] Those skilled in the art will understand that embodiments of this utility model application can be provided as methods, systems, or computer program goods. Therefore, this utility model application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this utility model application can take the form of a computer program goods embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0109] This utility model application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, as well as combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0110] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0111] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0112] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.

Claims

1. A thermoelectric power generation device based on a thermal storage device, characterized in that, include: A heat accumulator and a heat exchange tube, wherein the heat accumulator is equipped with a heat exchange tube, one end of which is a water inlet and the other end is a water outlet; A heat-conducting part is disposed on the heat exchange tube. The heat-conducting part is used to introduce the heat of the heat accumulator into the heat exchange tube. The heat-conducting part includes a heat-conducting tube and a heat collection plate. The power generation unit includes a first thermally conductive insulator, a second thermally conductive insulator, a first conductive body, a second conductive body, a semiconductor thermoelectric power generation module, a voltage regulator, a transformer, and a user terminal. One side of the first thermally conductive insulator is connected to the thermally conductive part, and the other side of the first thermally conductive insulator is connected to one side of the first conductive body. The side of the first conductive body away from the first thermally conductive insulator is connected to the semiconductor thermoelectric power generation module. The side of the semiconductor thermoelectric power generation module away from the first thermally conductive insulator is connected to the second conductive body. The voltage regulator is connected to the second conductive body. The transformer is connected to the voltage regulator. The user terminal is connected to the voltage regulator. The second thermally conductive insulator is disposed on the side of the second conductive body away from the semiconductor thermoelectric power generation module. A heat dissipation section is provided at the cold water inlet end of the heat exchange tube. The heat dissipation section is connected to the side of the second thermally conductive insulator away from the semiconductor thermoelectric power generation module. The heat dissipation section is used to dissipate heat from the cold end of the semiconductor thermoelectric power generation module. The heat dissipation section includes a heat dissipation plate and heat dissipation fins. A sensor assembly is installed on the heat-conducting part, the heat dissipation part, and the water inlet. The sensor assembly is used to monitor the real-time information of the thermoelectric power generation device of the thermal accumulator. The sensor assembly includes a temperature sensor and a flow meter. Two temperature sensors are provided, which are respectively installed on the heat collection plate and the heat dissipation plate. The temperature sensor is used to monitor the heat collection temperature and the heat dissipation temperature. The flow meter is installed at the water inlet and is used to monitor the flow information of the heat exchange tube inlet. A control module is connected to the sensor assembly and the heat exchange tube respectively. The control module is used to control the operation of the heat exchange tube according to the real-time information. The control module includes a data acquisition unit, a judgment unit and an early warning unit. The data acquisition unit is used to acquire the heat collection temperature, heat dissipation temperature, flow rate information and power generation information monitored by the temperature sensor and the flow meter, and determine the initial flow rate of the heat exchange tube according to the heat collection temperature and heat dissipation temperature. The judgment unit is used to determine whether to adjust the initial flow rate based on the power generation. If it is determined to adjust, the initial flow rate is adjusted according to the heat collection temperature and the heat dissipation temperature to obtain the final flow rate. The early warning unit is used to determine whether the temperature difference power generation device based on the thermal storage device has malfunctioned based on the temperature difference between the heat collection temperature and the heat dissipation temperature under the final flow rate and the power generation. If a malfunction occurs, an early warning is issued.

2. The thermoelectric power generation device based on a thermal storage device according to claim 1, characterized in that, The heat pipes are provided in a plurality of them, and the plurality of heat pipes are respectively disposed in the heat accumulator; One side of the heat collection plate is connected to the heat conduction pipe, and the end of the heat collection plate away from the heat conduction pipe is fixedly connected to the heat exchange pipe.

3. The thermoelectric power generation device based on a thermal storage device according to claim 2, characterized in that, The heat sink is disposed on the heat exchange tube, and one side of the heat sink is connected to the side of the second thermally conductive insulator away from the second conductor. The heat sink is provided in a plurality of units, and the plurality of heat sinks are provided on the side of the heat sink away from the second thermally conductive insulator.

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