Thermoelectric power generation device and method based on heat accumulator

Abstract

The invention discloses a thermoelectric power generation device and method based on a heat accumulator, and relates to the technical field of thermoelectric power generation, the device 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] The present invention relates to the technical field of temperature difference power generation, and in particular to a temperature difference power generation device and method based on a heat accumulator. Background Art

[0002] The basis of thermoelectric power generation is the Seebeck effect, which uses the Seebeck effect of thermoelectric materials to generate electricity through the movement of carriers in the material. Among them, semiconductor materials are the most widely used. One end of the P-type material and the FIN-type material (FIN-type material usually refers to a semiconductor structure) are connected to form a PN junction, and it is placed in a high temperature state, and the other end is formed 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, forming a concentration difference, and the carriers begin to diffuse to the low temperature end, thereby forming a potential difference at the low temperature open circuit end, thus completing the thermoelectric conversion. The junction end of the two semiconductors is placed at a high temperature, and the other end in a low temperature environment can obtain the electromotive force E: E = αΔT = α(T2-T1); where α is the Seebeck coefficient, and its unit is V / K or μV / K. The Seebeck coefficient is determined by the electronic band structure of the material itself, T2 is the temperature of the high temperature end, and T1 is the temperature of the low temperature end. The larger the temperature difference ΔT, the higher the electromotive force.

[0003] The main factors for improving power generation efficiency are two aspects: the performance of thermoelectric materials and the heat dissipation at the cold end. The performance of thermoelectric materials: The entire core of the temperature difference power generation system lies in the selection of thermoelectric materials. Thermoelectric materials with excellent performance can greatly improve the power generation efficiency. Heat dissipation at the cold end: According to the Seebeck effect principle, the greater the temperature difference between the hot and cold ends, the higher the power generation efficiency. Since the hot end is recycled industrial waste heat, the temperature generally remains unchanged, so the key to the problem is to reduce the temperature of the cold end, that is, how to better dissipate heat at the cold end is what we need to consider. At present, the main heat dissipation methods are liquid cooling, air cooling and phase change cooling. Liquid cooling is better than air cooling because the specific heat of liquid is much greater than that of gas, that is, the same unit of liquid can take away more heat than gas. The convective heat transfer coefficient is related to the flow rate. The greater the flow rate, the greater the convective heat transfer coefficient. The cooling and cooled liquids exchange heat through a heat exchanger. Shell and tube heat exchangers are generally used, and the heat dissipation effect is good.

[0004] Since the discovery of the Seebeck effect in 1821, foreign countries have conducted a lot of research on thermoelectric power generation and achieved a series of major results. However, research in this area in my country started late, mainly focusing on research on theory and preparation of thermoelectric materials. Early thermoelectric power generation technology was mainly used in aerospace and military fields, which did not require high costs and could accept any high cost. With the emergence of high-performance thermoelectric materials, the cost of thermoelectric power generation systems has been greatly reduced, and they can be used in industry and civilian fields. Although the cost has been reduced, the technology is relatively immature, and large-scale promotion and use have not yet been achieved. Only a small number of enterprises and research institutes can use this technology. As early as 1984, Tokyo Electric Power Company in Japan designed and manufactured a thermoelectric generator set that uses industrial waste heat. In the process of research in my country, Wang Zuomin conducted an efficiency analysis and concluded that the use of thermoelectric power generation technology in thermal power generation can improve the overall efficiency of thermal power plants. However, research has shown that there are still a few applications of thermoelectric power generation technology in industrial production in my country.

[0005] Therefore, it is necessary to provide a thermoelectric power generation device and method based on a heat storage device to solve the problem of high cost of thermoelectric power generation devices in the prior art. Summary of the invention

[0006] In view of this, the present invention proposes a thermoelectric power generation device and method based on a heat storage device, aiming to solve the problem of high cost of thermoelectric power generation devices in the prior art.

[0007] On the one hand, the present invention proposes a temperature difference power generation device based on a heat storage device, comprising:

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

[0009] A heat conducting part, arranged on the heat exchange tube, and used for conducting the heat of the heat accumulator into the heat exchange tube;

[0010] A power generation unit, comprising a first heat-conductive insulator, a second heat-conductive insulator, a first conductor, a second conductor, a semiconductor thermoelectric power generation module, a voltage regulator, a transformer and a user end, wherein one side of the first heat-conductive insulator is connected to the heat-conductive unit, the other side of the first heat-conductive insulator is connected to one side of the first conductor, a side of the first conductor away from the first heat-conductive insulator is connected to the semiconductor thermoelectric power generation module, a side of the semiconductor thermoelectric power generation module away from the first heat-conductive insulator is connected to the second conductor, the voltage regulator is connected to the second conductor, the transformer is connected to the voltage regulator, the user end is connected to the voltage regulator, and the second heat-conductive insulator is arranged on a side of the second conductor away from the semiconductor thermoelectric power generation module;

[0011] a heat dissipation portion, arranged at the cold water inlet end of the heat exchange tube, the heat dissipation portion being connected to a side of the second heat-conducting insulator away from the semiconductor thermoelectric power generation module, and the heat dissipation portion being used to dissipate heat from the cold end of the semiconductor thermoelectric power generation module;

[0012] A sensor assembly is arranged on the heat conducting part, the heat dissipating part and the water inlet, and the sensor assembly is used to monitor the real-time information of the temperature difference power generation device of the heat storage device;

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

[0014] Furthermore, the heat conducting part comprises:

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

[0016] A heat collecting plate, one side of which is connected to the heat conducting pipe, and one end of the heat collecting plate away from the heat conducting pipe is fixedly connected to the heat exchange pipe.

[0017] Furthermore, the heat dissipation unit includes:

[0018] a heat sink, disposed on the heat exchange tube, wherein one side of the heat sink is connected to a side of the second heat-conducting insulator away from the second electrical conductor;

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

[0020] Further, the sensor assembly includes:

[0021] Two temperature sensors are provided, and the two temperature sensors are respectively provided on the heat collecting plate and the heat dissipating plate, and the temperature sensors are used to monitor the heat collecting temperature and the heat dissipating temperature;

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

[0023] Furthermore, the control module includes:

[0024] A collection unit, used to collect the heat collection temperature, heat dissipation temperature, flow information and power generation monitored by the temperature sensor and the flow meter, and determine the initial flow of the heat exchange tube according to the heat collection temperature and the heat dissipation temperature;

[0025] A judging unit, configured to judge whether to adjust the initial flow rate according to the power generation, and if it is judged to be adjusted, adjust the initial flow rate according to the heat collection temperature and the heat dissipation temperature to obtain a final flow rate;

[0026] The early warning unit is used to determine whether the temperature difference power generation device based on the heat storage device fails according to the temperature difference between the heat collection temperature and the heat dissipation temperature at the final flow rate and the power generation, and to issue an early warning if a failure occurs.

[0027] Furthermore, when the acquisition unit is used to determine the initial flow rate of the heat exchange tube according to the heat collection temperature and the heat dissipation temperature, it includes:

[0028] Set the standard deviation of the heat collection temperature and the heat dissipation temperature, as well as the flow value corresponding to the standard deviation;

[0029] The initial difference between the initial heat collection temperature and the initial heat dissipation temperature is calculated, and the initial flow rate is set according to the ratio of the initial difference to the standard deviation. The initial flow rate is calculated by 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 represents the collector temperature, T s Indicates the heat dissipation temperature, ΔT b Indicates the standard deviation value.

[0032] Furthermore, the judging unit is used to judge whether to adjust the initial flow rate according to the power generation, including:

[0033] Setting a standard power generation per unit time, obtaining a real-time power generation per unit time of a temperature difference power generation device based on a heat storage device, and if the real-time power generation is greater than or equal to the standard power generation, determining not to adjust the initial flow rate, and taking the initial flow rate as the final flow rate;

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

[0035] Furthermore, if the real-time power generation is less than the standard power generation, it is determined that the initial flow rate is adjusted to obtain the final flow rate, including:

[0036] A first power generation amount, a second power generation amount, a first adjustment coefficient, a second adjustment coefficient and a third adjustment coefficient are preset; wherein the first power generation amount is less than the second power generation amount, the second power generation amount is less than the standard power generation amount, 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 is adjusted by 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, 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 is adjusted by the third adjustment coefficient.

[0040] Furthermore, the early warning unit is used to judge whether the temperature difference power generation device based on the heat storage device fails according to the temperature difference between the heat collection temperature and the heat dissipation temperature at the final flow rate and the power generation, and to issue an early warning if a failure occurs, 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, no fault warning is 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, it is determined that the temperature difference power generation device based on the heat storage device is faulty and a fault warning is issued.

[0044] Compared with the prior art, the beneficial effects of the present invention are as follows: by converting the low-grade industrial waste heat of the heat accumulator into electrical energy, the present invention can significantly improve energy utilization, reduce energy waste, and achieve sustainable development goals. Its heat conduction part effectively conducts heat into the heat exchange tube to ensure the high efficiency of heat transfer; and the power generation part converts the temperature difference into electrical energy through the semiconductor temperature difference power generation module to ensure the stability and efficiency of the power generation process. In addition, the sensor component monitors the temperature, flow and other key information of the device in real time, and provides data support for the control module, so that it can dynamically adjust the operating status of the heat exchange tube to cope with different operating conditions. This intelligent management not only improves the power generation efficiency, but also can timely warn of faults to ensure the safe and stable operation of the device. In summary, the device is not only economical and environmentally friendly, but also improves the intelligence level of energy management, and adapts to the requirements of modern industry for high efficiency and sustainable development;

[0045] The present invention directly converts the thermal energy of waste heat stored in the heat accumulator into electrical energy through a temperature difference power generation device, thereby reducing unnecessary energy loss, making the waste heat energy further utilized in a wider range and with higher utilization efficiency; the temperature difference power generation device is located at the water inlet end of the heat exchange tube inside the heat accumulator, close to the inner wall of the heat accumulator, the heat conduction part is located inside the heat accumulator, the heat dissipation part is located inside the heat exchange tube, the semiconductor temperature difference power generation module is located between the heat conduction part and the heat dissipation part and is embedded in the wall of the heat exchange tube. Since the temperature inside the heat accumulator is relatively stable, the temperature of the cold water that has just entered the heat accumulator through the heat exchange tube is also relatively stable, which can ensure that there is a stable temperature difference between the hot and cold ends of the semiconductor temperature difference power generation module, thereby improving the efficiency and stability of temperature difference power generation; the heat sink and the heat sink are placed at the cold water inlet end of the heat exchange tube, which, on the one hand, does not require an additional radiator, and on the other hand, effectively recovers the dissipated heat, thereby greatly improving the energy saving efficiency.

[0046] On the other hand, the present invention also provides a method for generating electricity by temperature difference based on a heat storage device, comprising:

[0047] Sensor components are arranged on the heat conducting part, the heat dissipating part and the water inlet to monitor the real-time information of the temperature difference power generation device of the heat storage device;

[0048] Collecting heat collection temperature, heat dissipation temperature, flow information and power generation, and determining the initial flow of the heat exchange tube according to the heat collection temperature and heat dissipation temperature;

[0049] Determine whether to adjust the initial flow rate according to the power generation, and if it is determined to be adjusted, adjust the initial flow rate according to the heat collection temperature and the heat dissipation temperature to obtain a final flow rate;

[0050] According to 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 temperature difference power generation device based on the heat storage device fails, and an early warning is issued if a failure occurs.

[0051] It can be understood that the temperature difference power generation device and method based on the heat storage device provided in the present application have the same beneficial effects, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0053] Figure 1 A schematic diagram of the structure of a thermoelectric power generation device based on a heat storage device provided in an embodiment of the present invention;

[0054] Figure 2 for Figure 1A magnified detail of the center A;

[0055] Figure 3 A flow chart of a method for thermoelectric power generation based on a heat storage device provided in an embodiment of the present invention;

[0056] In the figure, 100, heat accumulator; 200, heat exchange tube; 210, water inlet; 220, water outlet; 300, heat conduction part; 310, heat conduction tube; 320, heat collecting plate; 400, power generation part; 410, first heat conduction insulator; 420, second heat conduction insulator; 430, first conductor; 440, second conductor; 450, semiconductor temperature difference power generation module; 460, voltage stabilizer; 470, transformer; 480, user end; 500, heat dissipation part; 510, heat dissipation plate; 520, heat sink; 600, sensor assembly; 610, temperature sensor; 620, flow meter; 700, control module. DETAILED DESCRIPTION

[0057] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0058] In some embodiments of the present invention, see Figure 1-2 As shown, this embodiment provides a temperature difference power generation device based on a heat storage device 100, comprising:

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

[0060] The heat transfer part 300 is disposed on the heat exchange tube 200 and is used to transfer the heat of the heat accumulator 100 to the heat exchange tube 200;

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

[0062] The heat dissipation part 500 is arranged at the cold water inlet end of the heat exchange tube 200, and the heat dissipation part 500 is connected to the side of the second heat-conducting insulator 420 away from the semiconductor thermoelectric power generation module 450, and the heat dissipation part 500 is used to dissipate the cold end of the semiconductor thermoelectric power generation module 450;

[0063] The sensor assembly 600 is arranged on the heat conducting part 300, the heat dissipating part 500 and the water inlet 210, and the sensor assembly 600 is used to monitor the real-time information of the temperature difference power generation device of the heat storage device 100;

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

[0065] It can be understood that the present invention application converts the low-grade industrial waste heat of the heat accumulator 100 into electrical energy, and the device can significantly improve energy utilization, reduce energy waste, and achieve sustainable development goals. Its heat conduction part 300 effectively introduces heat into the heat exchange tube 200 to ensure the high efficiency of heat transfer; and the power generation part 400 converts the temperature difference into electrical energy through the semiconductor temperature difference power generation module 450 to ensure the stability and efficiency of the power generation process. In addition, the sensor component 600 monitors the temperature, flow and other key information of the device in real time, and provides data support for the control module 700, so that it can dynamically adjust the operating status of the heat exchange tube 200 to cope with different operating conditions. This intelligent management not only improves the power generation efficiency, but also can timely warn of faults to ensure the safe and stable operation of the device. In summary, the device is not only economical and environmentally friendly, but also improves the intelligence level of energy management, and adapts to the requirements of modern industry for high efficiency and sustainable development;

[0066] Specifically, the thermal energy of the waste heat stored in the heat accumulator 100 is directly converted into electrical energy through the thermoelectric power generation device, thereby reducing unnecessary energy loss, making the waste heat energy further utilized in a wider range and with higher utilization efficiency; the thermoelectric power generation device is located at the water inlet 210 end of the heat exchange tube 200 inside the heat accumulator 100, close to the inner wall of the heat accumulator 100, the heat pipe 310 and the heat collecting plate 320 are located inside the heat accumulator 100, the heat sink 520 and the heat plate 510 are located inside the heat exchange tube 200, and the semiconductor thermoelectric power generation module 450 is located at the heat conduction part 30 0 and the heat dissipation part 500 and embedded in the wall of the heat exchange tube 200. Since the internal temperature of the heat accumulator 100 is relatively stable, the temperature of the cold water that has just entered the heat accumulator 100 through the heat exchange tube 200 is also relatively stable, which can ensure that there is a stable temperature difference between the cold and hot ends of the semiconductor temperature difference power generation module 450, thereby improving the efficiency and stability of temperature difference power generation. The heat dissipation plate 510 and the heat sink 520 are placed at the cold water inlet end of the heat exchange tube 200. On the one hand, there is no need to equip a radiator separately. On the other hand, the dissipated heat can be effectively recovered, and the energy saving efficiency is greatly improved.

[0067] In some embodiments of the present invention, the heat conducting portion 300 includes:

[0068] There are a plurality of heat conducting pipes 310, and the plurality of heat conducting pipes 310 are respectively arranged in the heat storage device 100;

[0069] One side of the heat collecting plate 320 is connected to the heat conducting pipe 310 , and one end of the heat collecting plate 320 away from the heat conducting pipe 310 is fixedly connected to the heat exchange pipe 200 .

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

[0071] The heat dissipation plate 510 is disposed on the heat exchange tube 200 , and one side of the heat dissipation plate 510 is connected to a side of the second thermal insulator 420 away from the second conductor 440 ;

[0072] There are a plurality of heat sinks 520 , and the heat sinks 520 are disposed on a side of the heat sink 510 away from the second thermal insulator 420 .

[0073] In some embodiments of the present application, the sensor assembly 600 includes:

[0074] Two temperature sensors 610 are provided. The two temperature sensors 610 are respectively provided on the heat collecting plate 320 and the heat dissipating plate 510. The temperature sensors 610 are used to monitor the heat collecting temperature and the heat dissipating temperature;

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

[0076] It is understandable that the setting of the heat pipe 310 of the present invention enables the heat inside the heat accumulator 100 to be effectively transferred to the heat collecting plate 320, ensuring that the heat is fully utilized and improving the power generation efficiency. At the same time, the close connection between the heat collecting plate 320 and the heat exchange tube 200 further enhances the thermal conductivity. The heat dissipation unit 500 enhances the heat dissipation of the cold end of the semiconductor temperature difference power generation module 450 through the heat dissipation plate 510 and a plurality of heat sinks 520, avoids overheating, and ensures the stable operation of the device. In addition, the introduction of the sensor assembly 600, especially the setting of the temperature sensor 610 and the flow meter 620, makes real-time monitoring possible, and can accurately grasp the temperature changes and flow conditions of heat collection and heat dissipation, thereby providing data support for the dynamic adjustment of the device. This efficient combination of thermal management and real-time monitoring not only improves the power generation efficiency, but also enhances the safety and reliability of the device, which meets the high requirements of modern industry for energy utilization and equipment management.

[0077] In some embodiments of the present invention, the control module 700 includes:

[0078] A collection unit is used to collect the heat collection temperature, heat dissipation temperature, flow information and power generation monitored by the temperature sensor 610 and the flow meter 620, and determine the initial flow of the heat exchange tube 200 according to the heat collection temperature and the heat dissipation temperature;

[0079] A judgment unit, used to judge whether to adjust the initial flow rate according to the power generation, and if it is judged to 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;

[0080] The early warning unit is used to determine whether the temperature difference power generation device based on the heat storage device 100 fails according to the temperature difference between the heat collection temperature and the heat dissipation temperature at the final flow rate and the power generation, and to issue an early warning if a failure occurs.

[0081] It can be understood that the introduction of the acquisition unit of the present invention enables the monitoring data of the temperature sensor 610 and the flow meter 620 to be acquired in real time, so as to accurately grasp the state of heat collection and heat dissipation and ensure the accurate setting of the initial flow of the heat exchange tube 200. This data-driven flow adjustment helps to optimize the flow according to the actual power generation, so that the device can maintain the best working state under different working conditions. Secondly, the judgment unit can dynamically adjust the flow based on the real-time power generation to ensure the maximum power generation efficiency while avoiding energy loss caused by improper flow. Finally, the early warning unit monitors the final flow and temperature difference, detects potential faults in time, and issues early warnings, thereby enhancing the safety and reliability of the system. Comprehensive control not only improves the performance of the device, but also provides guarantees for the maintenance and management of the equipment, which meets the high requirements of modern industry for intelligence and safety.

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

[0083] In some embodiments of the present invention, the acquisition unit is used to determine the initial flow rate of the heat exchange tube 200 according to the heat collection temperature and the heat dissipation temperature, including:

[0084] Set the standard deviation of the heat collection temperature and the heat dissipation temperature, as well as the flow value corresponding to the standard deviation;

[0085] Calculate the initial difference between the initial heat collection temperature and the initial heat dissipation temperature, set the initial flow rate according to the ratio of the initial difference to the standard deviation, and calculate the initial flow rate by 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 represents the collector temperature, T s Indicates the heat dissipation temperature, ΔT b Indicates the standard deviation value.

[0088] In some embodiments of the present invention, the judging unit is used to judge whether to adjust the initial flow rate according to the power generation, including:

[0089] Set the standard power generation per unit time, obtain the real-time power generation per unit time of the temperature difference power generation device based on the heat storage device 100, if the real-time power generation is greater than or equal to the standard power generation, then determine not to adjust the initial flow rate, and use the initial flow rate as the final flow rate;

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

[0091] In some embodiments of the present invention, if the real-time power generation is less than the standard power generation, it is determined that the initial flow rate is adjusted to obtain the final flow rate, including:

[0092] 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;

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

[0095] If the real-time power generation is greater than the second power generation, it is determined that the initial flow rate is adjusted by the third adjustment coefficient.

[0096] It is understandable that the collection unit of the present invention uses the standard deviation of the heat collection temperature and the heat dissipation temperature, combined with the actual temperature difference, to accurately calculate the initial flow rate, so that the device can flexibly adjust the flow rate according to the real-time heat change, thereby ensuring the best heat conversion and power generation efficiency. Secondly, the judgment unit ensures the high efficiency and stability of the device during operation by setting the 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 dynamic flow rate according to the preset adjustment coefficient. This multi-level adjustment enables the device to maintain excellent power generation performance under different load and environmental conditions. In addition, by setting the graded adjustment coefficient, the flow adjustment strategy can be refined to ensure that when the power generation changes, the device can respond and adapt quickly to reduce energy losses. This intelligent control method not only improves the operating efficiency of the device, but also enhances its reliability, which meets the needs of modern energy management.

[0097] In some embodiments of the present application, the early warning unit is used to determine whether the temperature difference power generation device based on the heat storage device 100 fails according to the temperature difference between the heat collection temperature and the heat dissipation temperature at the final flow rate and the power generation, and to issue an early warning if a failure occurs, 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, it is determined that the temperature difference power generation device based on the heat storage device 100 is faulty and a fault warning is issued.

[0101] It is understandable that the early warning unit of the present invention can monitor the temperature difference between the heat collection temperature and the heat dissipation temperature in real time to ensure that it is within the standard range, thereby verifying the normal operating status of the device. If the temperature difference is within the standard range and the power generation is greater than the set minimum value, it can be effectively judged that the equipment is normal and there is no need 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 judge potential faults and issue early warnings in time to ensure that users can take timely measures to avoid greater losses. This dual monitoring method makes the temperature difference power generation device safer and more reliable during operation, and provides strong support for improving the management and maintenance level of equipment.

[0102] On the other hand, see Figure 3 As shown, the present application also provides a method for thermoelectric power generation based on a heat accumulator, which is applied to the above-mentioned thermoelectric power generation device based on a heat accumulator, and includes the following steps:

[0103] S100, installing sensor components on the heat conducting part, the heat dissipating part and the water inlet to monitor the real-time information of the temperature difference power generation device of the heat storage device;

[0104] S200, collecting heat collection temperature, heat dissipation temperature, flow information and power generation, and determining the initial flow of the heat exchange tube according to the heat collection temperature and the heat dissipation temperature;

[0105] S300, judging whether to adjust the initial flow rate according to the power generation, and if it is judged to be adjusted, adjusting the initial flow rate according to the heat collection temperature and the heat dissipation temperature to obtain the final flow rate;

[0106] S400: Determine whether a temperature difference power generation device based on the heat storage device fails based on the temperature difference between the heat collection temperature and the heat dissipation temperature at the final flow rate and the power generation, and issue a warning if a failure occurs.

[0107] It can be understood that the present invention realizes the monitoring of real-time information of the equipment by arranging sensor components in the heat conduction part, the heat dissipation part and the water inlet, providing a basis for subsequent data collection and analysis. Secondly, the real-time monitoring of the heat collection temperature, the heat dissipation temperature and the flow information can accurately determine the initial flow of the heat exchange tube, thereby optimizing the heat transfer process. Thirdly, through the continuous monitoring of the power generation, it is possible to flexibly judge whether the initial flow needs to be adjusted, and dynamically optimize it according to the actual temperature difference. This feedback mechanism ensures the maximization of power generation efficiency. Finally, the early warning can identify potential faults in time and ensure the safe operation of the equipment. Overall, the present invention not only improves the operating efficiency of the temperature difference power generation device, but also enhances its fault monitoring and self-regulation capabilities, laying the foundation for more efficient energy utilization and management.

[0108] It should be understood by those skilled in the art that the embodiments of the present invention application can be provided as methods, systems or computer program products. Therefore, the present invention application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0109] The present invention application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the present embodiments. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0110] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0111] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0112] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A thermoelectric power generation device based on a heat storage device, characterized in that: include: A heat accumulator and a heat exchange tube, wherein the heat accumulator is provided with a heat exchange tube, one end of the heat exchange tube is a water inlet, and the other end is a water outlet; A heat conducting part, arranged on the heat exchange tube, and used for conducting the heat of the heat accumulator into the heat exchange tube; A power generation unit, comprising a first heat-conductive insulator, a second heat-conductive insulator, a first conductor, a second conductor, a semiconductor thermoelectric power generation module, a voltage regulator, a transformer and a user end, wherein one side of the first heat-conductive insulator is connected to the heat-conductive unit, the other side of the first heat-conductive insulator is connected to one side of the first conductor, a side of the first conductor away from the first heat-conductive insulator is connected to the semiconductor thermoelectric power generation module, a side of the semiconductor thermoelectric power generation module away from the first heat-conductive insulator is connected to the second conductor, the voltage regulator is connected to the second conductor, the transformer is connected to the voltage regulator, the user end is connected to the voltage regulator, and the second heat-conductive insulator is arranged on a side of the second conductor away from the semiconductor thermoelectric power generation module; a heat dissipation portion, arranged at the cold water inlet end of the heat exchange tube, the heat dissipation portion being connected to a side of the second heat-conducting insulator away from the semiconductor thermoelectric power generation module, and the heat dissipation portion being used to dissipate heat from the cold end of the semiconductor thermoelectric power generation module; A sensor assembly is arranged on the heat conducting part, the heat dissipating part and the water inlet, and the sensor assembly is used to monitor the real-time information of the temperature difference power generation device of the heat storage device; A control module is connected to the sensor assembly and the heat exchange tube respectively, and the control module is used to control the operation of the heat exchange tube according to the real-time information.

2. The thermoelectric power generation device based on the heat storage device according to claim 1, characterized in that: The heat conducting part comprises: A plurality of heat-conducting pipes are provided, and the plurality of heat-conducting pipes are respectively arranged in the heat accumulator; A heat collecting plate, one side of which is connected to the heat conducting pipe, and one end of the heat collecting plate away from the heat conducting pipe is fixedly connected to the heat exchange pipe.

3. The thermoelectric power generation device based on the heat storage device according to claim 2, characterized in that: The heat dissipation unit comprises: a heat sink, disposed on the heat exchange tube, wherein one side of the heat sink is connected to a side of the second heat-conducting insulator away from the second electrical conductor; A plurality of heat sinks are provided, and the plurality of heat sinks are arranged on a side of the heat sink plate away from the second thermally conductive insulator.

4. The thermoelectric power generation device based on the heat storage device according to claim 3, characterized in that: The sensor components include: Two temperature sensors are provided, and the two temperature sensors are respectively provided on the heat collecting plate and the heat dissipating plate, and the temperature sensors are used to monitor the heat collecting temperature and the heat dissipating temperature; A flow meter is arranged at the water inlet, and the flow meter is used to monitor the flow information of the water inlet of the heat exchange tube.

5. The thermoelectric power generation device based on the heat storage device according to claim 4, characterized in that: The control module comprises: A collection unit, used to collect the heat collection temperature, heat dissipation temperature, flow information and power generation monitored by the temperature sensor and the flow meter, and determine the initial flow of the heat exchange tube according to the heat collection temperature and the heat dissipation temperature; A judging unit, configured to judge whether to adjust the initial flow rate according to the power generation, and if it is judged to be adjusted, adjust the initial flow rate according to the heat collection temperature and the heat dissipation temperature to obtain a final flow rate; The early warning unit is used to judge whether the temperature difference power generation device based on the heat storage device fails according to the temperature difference between the heat collection temperature and the heat dissipation temperature at the final flow rate and the power generation, and to issue an early warning if a failure occurs.

6. The thermoelectric power generation device based on the heat storage device according to claim 5, characterized in that: When the acquisition unit is used to determine the initial flow rate of the heat exchange tube according to the heat collection temperature and the heat dissipation temperature, it includes: Set the standard deviation of the heat collection temperature and the heat dissipation temperature, as well as the flow value corresponding to the standard deviation; The initial difference between the initial heat collection temperature and the initial heat dissipation temperature is calculated, and the initial flow rate is set according to the ratio of the initial difference to the standard deviation. The initial flow rate is calculated by the following formula: Q0=Q×[(T j -T s ) / ΔT b ]; In the above formula, Q0 represents the initial flow rate, Q represents the flow rate value corresponding to the standard deviation, and T j represents the collector temperature, T s Indicates the heat dissipation temperature, ΔT b Indicates the standard deviation value.

7. The thermoelectric power generation device based on the heat storage device according to claim 6, characterized in that: When the judging unit is used to judge whether to adjust the initial flow rate according to the power generation, it includes: Setting a standard power generation per unit time, obtaining a real-time power generation per unit time of a temperature difference power generation device based on a heat storage device, and if the real-time power generation is greater than or equal to the standard power generation, determining not to adjust the initial flow rate, and taking the initial flow rate as the final flow rate; If the real-time power generation is less than the standard power generation, it is determined that the initial flow rate is adjusted to obtain a final flow rate.

8. The thermoelectric power generation device based on the heat storage device according to claim 7, characterized in that: If the real-time power generation is less than the standard power generation, it is determined that the initial flow rate is adjusted to obtain a final flow rate, including: A first power generation amount, a second power generation amount, a first adjustment coefficient, a second adjustment coefficient and a third adjustment coefficient are preset; wherein the first power generation amount is less than the second power generation amount, the second power generation amount is less than the standard power generation amount, 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; If the real-time power generation is less than the first power generation, it is determined that the initial flow rate is adjusted by the first adjustment coefficient; 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, it is determined that the initial flow rate is adjusted by the second adjustment coefficient; If the real-time power generation is greater than the second power generation, it is determined that the initial flow rate is adjusted by the third adjustment coefficient.

9. The thermoelectric power generation device based on the heat storage device according to claim 8, characterized in that: The early warning unit is used to judge whether the temperature difference power generation device based on the heat storage device fails according to the temperature difference between the heat collection temperature and the heat dissipation temperature at the final flow rate and the power generation, and to issue an early warning if a failure occurs, including: Set the standard temperature difference range and minimum power generation value; 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 is issued; 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, it is determined that the temperature difference power generation device based on the heat storage device is faulty and a fault warning is issued.

10. A method for thermoelectric power generation based on a heat accumulator, applied to the thermoelectric power generation device based on a heat accumulator as claimed in any one of claims 1 to 9, characterized in that: include: Sensor components are arranged on the heat conducting part, the heat dissipating part and the water inlet to monitor the real-time information of the temperature difference power generation device of the heat storage device; Collecting heat collection temperature, heat dissipation temperature, flow information and power generation, and determining the initial flow of the heat exchange tube according to the heat collection temperature and heat dissipation temperature; Determine whether to adjust the initial flow rate according to the power generation, and if it is determined to be adjusted, adjust the initial flow rate according to the heat collection temperature and the heat dissipation temperature to obtain a final flow rate; According to 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 temperature difference power generation device based on the heat storage device fails, and an early warning is issued if a failure occurs.

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