Photovoltaically powered electrically heated vibrating mobile bed reactor, system and method

Abstract

The application discloses a kind of electric heating vibration mobile bed reaction system and method based on photovoltaic energy supply, including reaction cavity, and the heat-conducting load plate of inclination arrangement is movably installed in reaction cavity;The lower surface of heat-conducting load plate is fixedly connected with alternating current heating assembly;Reaction cavity upper portion is provided with feed inlet and exhaust port, bottom is provided with discharge port, the position of reaction cavity inside close to feed inlet is equipped with the fixed support shaft that spans the width of reaction cavity, and both ends of fixed support shaft are fixed to the inner wall of reaction cavity;The feed end of heat-conducting load plate corresponds with feed inlet, and feed end is equipped with shaft sleeve structure, and rotatably set on the fixed support shaft by shaft sleeve structure, form with fixed support shaft as center rotating connection;The discharge end of heat-conducting load plate is free end, and discharge end corresponds with discharge port, and eccentric wheel vibrating mechanism is equipped below it, and heat-conducting load plate is periodically oscillated around the fixed support shaft under the drive of the eccentric wheel vibrating mechanism.

Description

Technical Field

[0001] This invention belongs to the field of solar thermal utilization and chemical equipment technology, and specifically relates to an electrically heated vibrating moving bed reactor, system and method based on photovoltaic power supply. Background Technology

[0002] High-temperature solid-state reactions (such as the thermal decomposition of calcium carbonate) are widely used in the chemical and energy fields. Traditional reaction equipment mostly uses coal or gas for heating, resulting in high carbon emissions and low thermal efficiency. Although using solar energy to drive such reactions is a current trend, existing vibrating moving bed reactors have the following significant drawbacks: 1. Feed splashing and leakage issues: Traditional equipment often uses an integral spring suspension, resulting in large amplitude vibration at the feed end. For lightweight powders, the relative displacement between the feed inlet and the plate surface can cause material to splash during the drop, resulting in raw material waste.

[0003] 2. Discharge blockage at low flow rates: Under conditions of limited photovoltaic power supply (1-2kW thermal power) and low flow rates (approximately 50g / min), the material layer is extremely thin. If a uniform amplitude is used, the power at the end of the board is insufficient to overcome the adhesion force of the high-temperature powder, easily leading to accumulation and blockage at the discharge port.

[0004] 3. Problem of poor energy matching: Photovoltaic power fluctuates with cloud cover. Traditional externally heated reactors have high thermal inertia and cannot respond quickly to such fluctuations, resulting in uneven product quality. Summary of the Invention

[0005] The purpose of this invention is to provide an electrically heated vibrating moving bed reactor, system, and method based on photovoltaic power supply to solve the problems existing in the prior art. This invention effectively reduces material splashing and loss at the feed end by improving the mechanical structure and control logic, and solves the problem of material retention and blockage under small flow rates, thereby achieving source-load matching and stable heating.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A photovoltaic-powered electrically heated vibrating moving bed reactor includes a reaction chamber, in which a heat-conducting material carrier plate arranged at an inclination is movably installed; An AC heating assembly is fixedly connected to the lower surface of the heat-conducting carrier plate; The upper part of the reaction chamber is provided with a feed inlet and an exhaust outlet, and the bottom part is provided with a discharge outlet. A fixed support shaft spanning the width of the reaction chamber is provided inside the reaction chamber near the feed inlet, and the two ends of the fixed support shaft are fixed to the inner wall of the reaction chamber. The feed end of the heat-conducting carrier plate corresponds to the feed port, and the feed end is provided with a bushing structure, which is rotatably sleeved on the fixed support shaft through the bushing structure, forming a rotational connection with the fixed support shaft as the center. The discharge end of the heat-conducting material plate is a free end, and the discharge end corresponds to the discharge port. An eccentric wheel vibration mechanism is provided below it. The heat-conducting material plate oscillates periodically around the fixed support shaft under the drive of the eccentric wheel vibration mechanism.

[0007] Furthermore, the heat-conducting carrier plate has a groove-shaped cross-section and anti-overflow baffles on both sides.

[0008] Furthermore, the feed inlet includes a first cylindrical section that mates with the upper part of the reaction chamber, the lower end of the first cylindrical section is connected to a frustum section, the lower end of the frustum section is connected to a second cylindrical section, and the diameter of the first cylindrical section is larger than the diameter of the second cylindrical section.

[0009] Furthermore, the diameter of the second cylindrical section is smaller than the distance between the anti-overflow baffles on both sides of the heat-conducting material plate.

[0010] Furthermore, the eccentric wheel vibration mechanism includes a rotating eccentric wheel and a roller assembly. The roller assembly is installed at the bottom of the heat-conducting material plate. When the rotating eccentric wheel rotates, it drives the heat-conducting material plate to oscillate periodically by rolling and lifting the wear-resistant rollers on the roller assembly.

[0011] Furthermore, the AC heating assembly includes several parallel-arranged AC resistance heating tubes.

[0012] A photovoltaic-powered electrically heated vibrating moving bed reactor system includes a photovoltaic power supply module, an inverter unit, a transformer regulation module, an intelligent control unit, and an electrically heated vibrating moving bed reactor based on photovoltaic power supply as described in any one of claims 1-6. The photovoltaic power supply module is connected to the inverter unit, the output terminal of the inverter unit is connected to the input terminal of the transformer regulation module, and the output terminal of the transformer regulation module is connected to the AC heating component and the AC speed-regulating motor of the eccentric wheel vibration mechanism. The intelligent control unit is connected to the control terminal signal of the transformer regulation module and is used to regulate the voltage applied across the AC heating assembly.

[0013] Furthermore, the photovoltaic power supply module consists of several photovoltaic panels, and its output DC power is converted into AC power with constant voltage amplitude by an inverter unit.

[0014] Furthermore, it also includes an environmental monitoring module, which includes a total radiometer and a cloud monitoring camera installed outdoors. The intelligent control unit includes a central processing unit and a control signal interface. The central processing unit is used to send commands to the transformer regulation module through the control signal interface to change the output voltage amplitude or conduction angle based on the real-time irradiance data and cloud occlusion prediction data collected by the total radiometer and the cloud monitoring camera, thereby realizing dynamic control of the heat generation power.

[0015] A control method for an electric heating vibrating moving bed reaction system based on photovoltaic power supply: the photovoltaic power supply module collects DC power and performs inverter processing to output constant AC power; the transformer regulation module gradually increases the voltage under the instruction of the intelligent control unit to supply AC heating components for preheating; after the reaction zone reaches the set working temperature, it drives the AC speed regulating motor to run. During the feeding stage, a small flow of calcium carbonate particles falls steadily from the inlet and enters the reaction stage under the combined action of gravity and the oscillation of the heat-conducting carrier plate. They slide downwards and absorb heat to decompose. During operation, if the intelligent control unit predicts a sharp drop in light radiation based on the cloud monitoring camera, it will instruct the transformer regulation module to reduce the output voltage to prioritize maintaining system operation and prevent tripping. It will also reduce the vibration frequency to extend the material's heating reaction time, thus achieving dynamic intelligent control of the heating power. During the discharge stage, as the material moves backward, the amplitude of the heat-conducting carrier plate increases the further away from the fixed support shaft. The products that have completed the reaction are forcibly ejected at the discharge port with the largest amplitude, successfully completing product collection.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects: The vibrating moving bed reactor of the present invention has the following advantages: 1. Significantly reduces feed splashing and loss: The feed end is hinged to the main body of the equipment through a fixed support shaft. Utilizing the principle of controllable support shaft rotation, the angle of the heat-conducting material plate is adjustable, which can stabilize feeding, reduce equipment wear, adapt to multiple working conditions, and improve operational safety. It ensures that the feed inlet and the surface of the heat-conducting material plate remain relatively stationary. Combined with round tube feeding, it effectively reduces the splashing phenomenon of material at the moment of falling, and reduces the risk of raw material waste and thermal stress cracking.

[0017] 2. Effectively prevents material discharge blockage: Using a front-static-rear-dynamic amplitude-variable mode, the inlet end of the heat-conducting material plate is fixed with a fixed support shaft, and the lower part of the outlet section is in contact with it. The amplitude of the material plate is dynamically changed by the rotation of the cam, which can reduce the impact of operation, improve the stability of operation, and accurately adapt to the working conditions. It generates the maximum excitation force at the outlet end, forcibly ejecting high-temperature viscous materials, thus solving the blockage problem under small inclination angle and small flow conditions.

[0018] 3. Improved energy compatibility and extended lifespan: The bottom-mounted heating design of the thermally conductive carrier plate not only improves the thermal response speed to adapt to photovoltaic fluctuations, but also isolates the heating element from material corrosion by the thermally conductive carrier plate, thus extending the service life of the equipment.

[0019] 4. Optimized overflow protection: The overflow protection edges on both sides of the heat-conducting material plate cooperate with the circular tube inlet (the circular tube inlet formed by the cylindrical frustum) to effectively constrain the material flow field under vibration conditions and prevent material leakage.

[0020] Furthermore, the present invention achieves stable hinged positioning through a specific bushing structure and a fixed support shaft, and provides reliable periodic driving force by using a mechanical excitation source.

[0021] Furthermore, the present invention reduces frictional losses during the driving process and ensures stable transmission of excitation force at the discharge end by using the rolling lifting cooperation of the eccentric wheel and the roller assembly.

[0022] Furthermore, the present invention limits the lateral diffusion of materials during the vibration conveying process by using an anti-overflow baffle, thus ensuring the stable flow of thin-layer materials under low flow rates.

[0023] Furthermore, the present invention effectively constrains the material flow field under vibration conditions and prevents material leakage by combining the inlet structure design with the anti-overflow baffle spacing.

[0024] The electrically heated vibrating moving bed reaction system of the present invention has the following advantages: It is suggested that the advantages of the system be further explained.

[0025] By dynamically adjusting the heating power based on measured environmental irradiance data, dynamic source-load matching is achieved, effectively addressing the drawbacks of strong system thermal inertia and inconsistent product quality caused by photovoltaic power fluctuations, and maintaining stable heating operation. Introducing cloud cover prediction information allows for early anticipation of photovoltaic power fluctuations and rapid response, further improving source-load matching accuracy and enhancing system stability. Collecting environmental irradiance data and adjusting the heating power in a closed-loop manner, especially combining cloud cover prediction data to regulate voltage amplitude and conduction angle, ensures real-time matching between heating load and photovoltaic power output, compensating for the shortcomings of traditional externally heated reactors such as high thermal inertia and slow response, and guaranteeing uniform product quality. Attached Figure Description

[0026] The accompanying drawings are provided to further understand the invention and constitute a part of this invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0027] Figure 1 This is a schematic diagram of the structure of the photovoltaic-powered electrically heated vibrating moving bed reaction system of the present invention; Figure 2 This is a flowchart of the operation of the photovoltaic-powered electrically heated vibrating moving bed reaction system of the present invention; Figure 3 This is a schematic diagram of the core structure and mechanical principle of the photovoltaic-powered electrically heated vibrating moving bed reactor of the present invention, wherein (a) is a front view and (b) is a side view.

[0028] Among them, 1-photovoltaic power supply module, 2-intelligent control unit, 3-inverter unit, 4-variable voltage regulation module, 5-total radiometer, 6-cloud monitoring camera, 10-reaction chamber, 11-feed inlet, 12-exhaust port, 13-discharge port, 20-heat-conducting material plate, 21-AC electric heating component, 30-eccentric wheel vibration mechanism, 31-AC speed-regulating motor, 32-rotating eccentric wheel, 33-roller assembly, 34-wear-resistant roller, 40-fixed support shaft. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0030] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0031] Example 1 A photovoltaic-powered electrically heated vibrating moving bed reactor includes a reaction chamber 10, in which a heat-conducting material carrier plate 20 is movably installed at an inclined arrangement. The reaction chamber 10 provides a closed or semi-closed physical space for the material to undergo a high-temperature solid-phase reaction, while the heat-conducting carrier plate 20 serves as the core carrier for the material to slide, spread, and absorb heat during the reaction. The heat-conducting carrier plate 20 is arranged at an angle, allowing the material to slide naturally from high to low along the plate surface under gravity. This angle can be flexibly adjusted according to the friction coefficient and flow characteristics of different materials. For example, in low-flow conditions, a smaller inclination angle can be used to prevent the material from sliding too quickly and causing uneven heating.

[0032] An AC heating assembly 21 is fixedly connected to the lower surface of the heat-conducting carrier plate 20. The AC heating assembly 21 includes several parallel AC resistance heating tubes. The cross-section of the heat-conducting carrier plate 20 is groove-shaped, and anti-overflow baffles are provided on both sides. The reaction chamber 10 is provided with an inlet 11 and an exhaust port 12 at the top and an outlet 13 at the bottom. A fixed support shaft 40 spanning the width of the reaction chamber 10 is provided inside the reaction chamber 10 near the inlet 11. The two ends of the fixed support shaft 40 are fixed to the inner wall of the reaction chamber 10. The inlet 11 includes a first cylindrical section that mates with the upper part of the reaction chamber 10. The lower end of the first cylindrical section is connected to a frustum section, and the lower end of the frustum section is connected to a second cylindrical section. The diameter of the first cylindrical section is larger than the diameter of the second cylindrical section, and the diameter of the second cylindrical section is smaller than the distance between the anti-overflow baffles on both sides of the heat-conducting material plate 20. The feeding end of the heat-conducting material plate 20 corresponds to the feeding port 11, and the feeding end is provided with a bushing structure, which is rotatably sleeved on the fixed support shaft 40 through the bushing structure, forming a rotational connection with the fixed support shaft 40 as the center. The two ends of the fixed support shaft 40 are firmly anchored to the inner wall of the reaction chamber 10, spanning the entire width of the chamber, providing a rigid and spatially stationary rotational reference for the heat-conducting material plate 20. The bushing structure allows the heat-conducting material plate 20 to rotate smoothly around the fixed support shaft 40. This shaft-sleeve fit not only has a strong load-bearing capacity but also can adapt to thermal expansion under high-temperature conditions, ensuring the reliability of the rotational connection.

[0033] The discharge end of the heat-conducting material carrier plate 20 is a free end, and the discharge end corresponds to the discharge port 13. An eccentric wheel vibration mechanism 30 is provided below it. The heat-conducting material carrier plate 20 oscillates periodically around the fixed support shaft 40 under the drive of the eccentric wheel vibration mechanism 30. The eccentric wheel vibration mechanism 30 includes a rotating eccentric wheel 32 and a roller assembly 33. The roller assembly 33 is installed at the bottom of the heat-conducting material carrier plate 20. When the rotating eccentric wheel 32 rotates, it drives the heat-conducting material carrier plate 20 to oscillate periodically by rolling and lifting the wear-resistant rollers 34 on the roller assembly 33.

[0034] The rotating eccentric wheel 32 is driven by an AC speed-regulating motor 31 to rotate continuously. Because its center of gravity is off-center, the trajectory of its outer edge exhibits periodic undulations during rotation. When the highest point of the rotating eccentric wheel 32 rotates upwards, it contacts and lifts the roller assembly 33 mounted at the bottom of the carrier plate, thereby forcing the free end of the heat-conducting carrier plate 20 to rise. When the highest point of the rotating eccentric wheel 32 rotates downwards, the heat-conducting carrier plate 20 falls back under its own weight and the weight of the material, thus completing one periodic up-and-down swing. This eccentric wheel lifting mechanism has a simple structure, reliable operation, and can flexibly change the swing amplitude by adjusting the eccentricity.

[0035] This invention constructs a variable amplitude oscillation mode, fundamentally solving the contradiction between feed splashing and discharge blockage. The feed end of the heat-conducting carrier plate 20 is rotatably sleeved on the fixed support shaft 40 through the bushing structure, forming a rotational connection with the fixed support shaft 40 as the center. Therefore, it is a zero amplitude anchor point, and the drop point remains relatively stationary with the surface of the heat-conducting carrier plate 20, eliminating the root cause of splashing. At the discharge end, due to the amplitude increasing to the maximum value, a strong throwing force is generated, which can forcefully throw out high-temperature viscous materials, completely avoiding discharge blockage.

[0036] Example 2 A photovoltaic-powered electrically heated vibrating moving bed reactor system includes: a photovoltaic power supply module 1, an inverter unit 3, a transformer regulation module 4, an intelligent control unit 2, and a vibrating moving bed reactor.

[0037] The vibrating moving bed reactor includes a reaction chamber 10, in which a heat-conducting material carrier plate 20 arranged at a slight inclination is movably installed.

[0038] An AC heating assembly 21 is fixedly connected to the lower surface of the heat-conducting carrier plate 20. The AC heating assembly 21 includes several parallel AC resistance heating tubes.

[0039] The electric heating component 21 refers to a device capable of converting electrical energy into heat energy. Its specific form is not limited to the AC resistance heating tube mentioned in this invention; it can also be a silicon carbide heating element, an electromagnetic induction heating coil, a thin-film heating sheet, or any other electric heating device capable of adhering to the plate surface to generate heat. The electric heating component 21 and the heat-conducting carrier plate 20 are typically connected by methods such as tight bonding with thermally conductive adhesive, high-temperature welding, bolt tightening, or slot embedding to ensure the continuity and stability of the heat conduction path.

[0040] If traditional external heating is used, i.e., a heating jacket is set outside the reaction chamber 10, the heat needs to penetrate the outer wall of the chamber, the insulation layer, the inner wall of the chamber, and any possible gas gaps to reach the material. This multi-layered series thermal resistance results in extremely high thermal inertia, making the response extremely slow when facing photovoltaic fluctuations at the second level, which can easily cause uneven heating of the material or even local overheating and sintering. If an insert-type internal heating is used, i.e., the heating tube is directly immersed into the material layer, although the thermal response is improved, the outer shell of the heating tube will be directly exposed to the erosion and corrosion of high-temperature corrosive materials. Under the condition of small flow and thin layer, the dual effects of abrasion and chemical corrosion caused by material slippage will cause the heating tube to perforate and be damaged quickly, resulting in high maintenance costs and potential safety accidents. Therefore, fixing the AC heating component 21 to the lower surface of the heat-conducting carrier plate 20 is the optimized method of this invention.

[0041] The photovoltaic power supply module 1 is connected to the inverter unit 3, the output terminal of the inverter unit 3 is connected to the input terminal of the transformer regulation module 4, and the output terminal of the transformer regulation module 4 is connected to the AC heating component 21.

[0042] The intelligent control unit 2 is connected to the control terminal of the transformer regulation module 4 and is used to regulate the voltage applied across the AC heating assembly 21.

[0043] The reaction chamber 10 is provided with a fixed support shaft 40 that spans the width of the chamber near the feed end. Both ends of the fixed support shaft 40 are fixed to the inner wall of the reaction chamber 10.

[0044] The feed end of the heat-conducting material plate 20 is provided with a bushing structure, and is rotatably sleeved on the fixed support shaft 40 through the bushing structure, forming a rotatable connection with the fixed support shaft 40 as the center.

[0045] The discharge end of the heat-conducting material plate 20 is a free end, and an eccentric wheel vibration mechanism 30 is provided below it. The heat-conducting material plate 20 oscillates periodically around the fixed support shaft 40 under the drive of the eccentric wheel vibration mechanism 30.

[0046] The top of the reaction chamber 10 is provided with a feed inlet 11. The feed inlet 11 includes a first cylindrical section that mates with the upper part of the reaction chamber 10. The lower end of the first cylindrical section is connected to a frustum section, and the lower end of the frustum section is connected to a second cylindrical section. The diameter of the first cylindrical section is larger than the diameter of the second cylindrical section. The outlet diameter of the feed inlet 11 (i.e., the diameter of the second cylindrical section) is smaller than the distance between the anti-overflow baffles on both sides of the heat-conducting material carrier plate 20. The axis of the tubular feed channel 11 is aligned with the area near the transverse rotating shaft of the feed end of the heat-conducting material carrier plate 20.

[0047] Structurally, the feed inlet 11 has a smooth inner wall without sharp edges, which guides the material to form a converging columnar flow, avoiding turbulence and scattering caused by the corners of square or irregularly shaped channels. The overflow baffles act like two lateral dams, limiting the lateral diffusion of the material during the vibration conveying process and ensuring the stable flow of thin layers of material at low flow rates. The dimensional constraint that the outlet diameter of the feed inlet 11 (i.e., the diameter of the second cylindrical section) is smaller than the distance between the overflow baffles on both sides of the heat-conducting material carrier plate 20 is a key quantitative defense against splashing and side leakage. If the outlet diameter of the feed inlet 11 is larger than the distance between the overflow baffles, the width of the falling material column will exceed the constraint range of the lateral baffles. After falling, the material will directly overflow into the vibration gaps on both sides of the heat-conducting material carrier plate 20, not only failing to participate in the normal sliding reaction but also accumulating at the bottom of the reaction chamber 10, causing cleaning difficulties and waste. Only when the outlet diameter is smaller than the overflow baffle spacing can the flow column be completely contained within the trough-shaped space formed by the overflow baffle. Combined with the vertically aligned zero-amplitude drop point, a three-dimensional closed flow field is formed, completely eliminating side leakage and turbulent splashing under vibration conditions.

[0048] The system also includes an environmental monitoring module, which includes a total radiometer 5 and a cloud monitoring camera 6 installed outdoors; the intelligent control unit 2 includes a central processing unit and a control signal interface. The central processing unit is used to send commands to the transformer regulation module 4 through the control signal interface to change the output voltage amplitude or conduction angle based on real-time irradiance data and cloud occlusion prediction data, so as to realize dynamic control of the heat generation power.

[0049] Example 3 See Figure 3 The core mechanical structure of this invention lies in replacing traditional overall vibration with fixed-point oscillation. The reactor includes a reaction chamber 10, inside which a fixed support shaft 40 spanning the width of the chamber is located near the feed end. The heat-conducting material plate 20 is arranged at a slight angle, and its feed end is sleeved on the fixed support shaft 40 through a bushing structure, forming a rotational connection with the shaft as the center. The discharge end of the heat-conducting material plate 20 is a free end, and an eccentric wheel vibration mechanism 30 is located below it. In the basic embodiment, when the rotating eccentric wheel 32 in the eccentric wheel vibration mechanism 30 rotates, its outer edge periodically contacts and lifts the bottom of the heat-conducting material plate 20, driving the heat-conducting material plate 20 to oscillate periodically up and down around the fixed support shaft 40 at the feed end. This front-static-back-dynamic structure generates maximum excitation force at the discharge end, effectively overcoming material adhesion and preventing discharge blockage.

[0050] Based on the above core principles Figure 1A preferred embodiment of the invention is illustrated. Regarding the reactor's mechanical main body, the heat-conducting material carrier plate 20 is preferably made of 310S heat-resistant stainless steel, with a groove-shaped cross-section, 8 mm high anti-overflow baffles on both sides, and a flat conveying surface in the middle. The overall width of the heat-conducting material carrier plate 20 is smaller than the inner width of the reaction chamber 10, to create vibration-avoiding gaps on both sides. To further reduce frictional losses and extend equipment life, the eccentric wheel vibration mechanism 30 in the preferred embodiment also includes a roller assembly 33 mounted on the bottom of the heat-conducting material carrier plate 20. The rotating eccentric wheel 32 drives the heat-conducting material carrier plate 20 by rolling and lifting the wear-resistant rollers 34 on the roller assembly 33. Furthermore, an AC heating assembly 21, specifically several parallel-arranged AC resistance heating tubes, is tightly bonded and fixed to the lower surface of the heat-conducting material carrier plate 20 using thermally conductive adhesive. The top of the reaction chamber 10 is provided with a cylindrical feed channel 11. The outlet axis of the channel is vertically aligned with the center of the feed end fixed support shaft 40, and the outlet plane is extremely close to the surface of the heat-conducting material plate 20, ensuring that the material drop point is in a relatively static state. Combined with the anti-overflow baffle, the material flow field is effectively constrained, significantly reducing feed splashing and loss.

[0051] For information on energy and control systems, please refer to [link / reference]. Figure 1 This system adopts a control architecture that separates the inverter and transformer. The photovoltaic power supply module 1 consists of several photovoltaic panels, and its output DC power is converted into AC power with a constant voltage amplitude by the inverter unit 3 as the intermediate bus power supply. The transformer regulation module 4 is connected between the inverter unit 3 and the load, and its output drives the AC speed-regulating motor 31 of the bottom AC heating component 21 and the eccentric wheel vibration mechanism 30. The system is also equipped with an environmental monitoring module, including a total radiometer 5 installed outdoors and a cloud monitoring camera 6. The intelligent control unit 2 receives data from the environmental monitoring module and sends regulation commands to the transformer regulation module 4 to achieve source-load matching.

[0052] Fully automated operation process and logic as follows Figure 2As shown. After the system starts, the photovoltaic system collects DC power and inverts it to output constant AC power. Under the command of the intelligent control unit 2, the transformer regulation module 4 gradually increases the voltage to supply AC heating component 21 for preheating. After the reaction zone reaches the set operating temperature, it drives the AC speed-regulating motor 31 to run. During the feeding stage, a small flow of calcium carbonate particles falls steadily from the feed port 11 and enters the reaction stage under the combined action of gravity and the swing of the heat-conducting material plate 20, sliding downwards and absorbing heat for decomposition. During operation, if the intelligent control unit 2 predicts a sharp drop in solar radiation based on cloud monitoring, it will instruct the transformer regulation module 4 to reduce the output voltage, prioritizing the maintenance of system operation to prevent tripping, and can also reduce the vibration frequency to extend the material's heating reaction time, achieving dynamic intelligent control of the heating power. During the discharge stage, as the material moves backward, the amplitude of the heat-conducting material plate 20 increases the further away from the fixed support shaft 40. The products that have completed the reaction are forcibly thrown out at the discharge port 13 with the largest amplitude, successfully completing product collection.

[0053] Specifically, after the system starts up, the photovoltaic power supply module 1 begins to collect DC power and outputs it to the inverter unit 3, which converts it into constant voltage AC power as the intermediate bus power supply. At this time, the intelligent control unit 2 sends a command to the transformer regulation module 4 to gradually increase the voltage amplitude output to the electric heating component 21 on the lower surface of the carrier plate 20, so that the heating power smoothly rises from zero to the preheating target power. This gradual voltage increase power regulation logic avoids the thermal shock caused by instantaneous full power application during cold start-up and protects the connection structure between the heating component and the carrier plate from thermal stress fatigue.

[0054] Once the internal temperature of the reaction chamber 10 reaches the operating temperature required for calcium carbonate decomposition, the AC speed-regulating motor 31 of the eccentric wheel vibration mechanism 30 is activated, and the feeding is started simultaneously. A tiny flow rate of approximately 50 g / min of calcium carbonate powder falls vertically from the feed inlet 11 at the top of the reaction chamber 10. Because the outlet axis of the feed inlet 11 is aligned with the area directly above the fixed support shaft 40, the drop point is precisely in a near-zero amplitude static zone. At the moment of drop, the powder exhibits almost no relative horizontal displacement with the surface of the heat-conducting carrier plate 20, completely eliminating the splashing and leakage of lightweight powder caused by the violent oscillation of the plate surface at the feed end in traditional uniform amplitude vibrating beds. Simultaneously, the outlet diameter of the feed inlet 11 is smaller than the distance between the anti-overflow baffles on both sides of the heat-conducting carrier plate 20. Combined with the lateral constraint of the anti-overflow baffles, a three-dimensional closed steady-state flow field is formed, ensuring that all powder is contained within the trough-shaped conveying surface without side leakage or turbulence.

[0055] Under the combined effects of gravity and increasing amplitude, the powder forms an extremely thin material layer on the heat-conducting carrier plate 20 and slides down to absorb heat. Since one end of the heat-conducting carrier plate 20 is hinged to the fixed support shaft 40, forming a fixed-axis rotation, while the other end is a free end driven by the eccentric wheel vibration mechanism 30, the heat-conducting carrier plate 20 oscillates periodically around the fixed support shaft 40, with the amplitude increasing linearly from near zero at the feed end to the discharge end. Under low flow conditions, if the extremely thin powder layer is in a conventional uniform micro-amplitude environment, it is very easy for it to adhere to the wall and become stuck. However, in this embodiment, as the powder slides towards the free end, the throwing force it experiences gradually increases, and the thin material layer is continuously tumbled and loosened, greatly improving heat transfer and reaction uniformity. Meanwhile, the bottom-attached electric heating component 21 supplies heat to the powder through only one layer of heat-conducting carrier plate 20 wall thickness, with extremely low thermal resistance, enabling it to respond in seconds and maintain the high-temperature thermal field required for the reaction. Furthermore, the heat-conducting carrier plate 20 physically isolates the electric heating component 21 from direct erosion by corrosive high-temperature materials.

[0056] The reacted calcium oxide product reaches the outlet 13 area at the free end of the heat-conducting carrier plate 20. Here, the amplitude reaches its maximum value. The rotating eccentric wheel 32 in the eccentric wheel vibration mechanism 30 generates the maximum periodic throwing force at the outlet end through the wear-resistant rollers 34 on the rolling lifting roller assembly 33. Under this maximum excitation force, the product, which has a certain degree of adhesion at high temperatures, is forcibly thrown out of the outlet 13, completely avoiding the accumulation and blockage problem caused by insufficient power at the outlet end under low flow rates. The roller assembly 33's design, which converts sliding friction into rolling friction, ensures stable transmission of excitation force and low-wear operation under high-temperature, high-frequency vibration conditions.

[0057] During continuous operation, if the cloud monitoring camera 6 detects the movement trajectory of clouds and calculates the predicted shading of the photovoltaic panels, the intelligent control unit 2 immediately acquires this shading prediction data. Before the actual shading causes a sharp drop in photovoltaic power supply, the intelligent control unit 2 sends a command to the transformer regulation module 4 to reduce the thyristor conduction angle output to the electric heating component 21, smoothly reducing the heating power and allowing the load demand to adapt to the impending source-end attenuation in advance. This completely avoids power outages and interruptions caused by power gaps when relying solely on real-time irradiance for passive response. After the clouds pass and irradiance recovers, the intelligent control unit 2 then commands the transformer regulation module 4 to smoothly increase the conduction angle, utilizing the rapid thermal response characteristics of bottom-mounted heating to quickly restore the reaction temperature, ensuring the macroscopic uniformity of product quality.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit its scope of protection. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that after reading the present invention, they can still make various changes, modifications or equivalent substitutions to the specific implementation of the invention, but these changes, modifications or equivalent substitutions are all within the scope of protection of the pending claims of the invention.

Claims

1. A photovoltaic-powered electrically heated vibrating moving bed reactor, characterized in that, It includes a reaction chamber (10), in which a heat-conducting material plate (20) is movably installed at an angle. An AC heating assembly (21) is fixedly connected to the lower surface of the heat-conducting carrier plate (20). The upper part of the reaction chamber (10) is provided with a feed inlet (11) and an exhaust outlet (12), and the bottom part is provided with a discharge outlet (13). The interior of the reaction chamber (10) near the feed inlet (11) is provided with a fixed support shaft (40) that spans the width of the reaction chamber (10). The two ends of the fixed support shaft (40) are fixed to the inner wall of the reaction chamber (10). The feed end of the heat-conducting carrier plate (20) corresponds to the feed port (11), and the feed end is provided with a bushing structure, which is rotatably sleeved on the fixed support shaft (40) through the bushing structure to form a rotational connection with the fixed support shaft (40) as the center. The discharge end of the heat-conducting material plate (20) is a free end, and the discharge end corresponds to the discharge port (13). An eccentric wheel vibration mechanism (30) is provided below it. The heat-conducting material plate (20) swings periodically around the fixed support shaft (40) under the drive of the eccentric wheel vibration mechanism (30).

2. The photovoltaic-powered electrically heated vibrating moving bed reactor according to claim 1, characterized in that, The heat-conducting material plate (20) has a groove-shaped cross section and anti-overflow baffles on both sides.

3. The photovoltaic-powered electrically heated vibrating moving bed reactor according to claim 2, characterized in that, The feed inlet (11) includes a first cylindrical section that fits into the upper part of the reaction chamber (10). The lower end of the first cylindrical section is connected to a frustum section, and the lower end of the frustum section is connected to a second cylindrical section. The diameter of the first cylindrical section is larger than the diameter of the second cylindrical section.

4. The photovoltaic-powered electrically heated vibrating moving bed reactor according to claim 3, characterized in that, The diameter of the second cylindrical section is smaller than the distance between the anti-overflow baffles on both sides of the heat-conducting material plate (20).

5. A photovoltaic-powered electrically heated vibrating moving bed reactor according to claim 1, characterized in that, The eccentric wheel vibration mechanism (30) includes a rotating eccentric wheel (32) and a roller assembly (33). The roller assembly (33) is installed at the bottom of the heat-conducting material plate (20). When the rotating eccentric wheel (32) rotates, it drives the heat-conducting material plate (20) to oscillate periodically by rolling and lifting the wear-resistant roller (34) on the roller assembly (33).

6. A photovoltaic-powered electrically heated vibrating moving bed reactor according to claim 1, characterized in that, The AC electric heating assembly (21) includes several parallel AC resistance heating tubes.

7. A photovoltaic-powered electrically heated vibrating moving bed reaction system, characterized in that, The reactor includes a photovoltaic power supply module (1), an inverter unit (3), a transformer regulation module (4), an intelligent control unit (2), and an electrically heated vibrating moving bed reactor based on photovoltaic power supply as described in any one of claims 1-6. The photovoltaic power supply module (1) is connected to the inverter unit (3), the output end of the inverter unit (3) is connected to the input end of the transformer regulation module (4), and the output end of the transformer regulation module (4) is connected to the AC speed regulating motor (31) of the AC heating component (21) and the eccentric wheel vibration mechanism (30). The intelligent control unit (2) is connected to the control terminal of the transformer regulation module (4) and is used to regulate the voltage applied across the AC heating assembly (21).

8. A photovoltaic-powered electrically heated vibrating moving bed reaction system according to claim 7, characterized in that, The photovoltaic power supply module (1) is composed of several photovoltaic panels, and its output DC power is converted into AC power with constant voltage amplitude by the inverter unit (3).

9. A photovoltaic-powered electrically heated vibrating moving bed reaction system according to claim 7, characterized in that, It also includes an environmental monitoring module, which includes a total radiometer (5) and a cloud monitoring camera (6) installed outdoors. The intelligent control unit (2) includes a central processing unit and a control signal interface. The central processing unit is used to send instructions to the transformer regulation module (4) through the control signal interface to change the output voltage amplitude or conduction angle based on the real-time irradiance data and cloud occlusion prediction data collected by the total radiometer (5) and the cloud monitoring camera (6), so as to realize dynamic control of the heat generation power.

10. A control method for a photovoltaic-powered electrically heated vibrating moving bed reaction system, based on any one of claims 7-9, characterized in that, The photovoltaic power supply module (1) collects DC power and performs inverter processing to output constant AC power. Under the instruction of the intelligent control unit (2), the transformer regulation module (4) gradually increases the voltage to supply AC heating component (21) for preheating. After the reaction zone reaches the set working temperature, it drives AC speed regulating motor (31) to run. During the feeding stage, a small flow of calcium carbonate particles falls steadily from the feed inlet (11). Under the combined action of gravity and the swing of the heat-conducting carrier plate (20), they enter the reaction stage, slide downwards and absorb heat to decompose. During operation, if the intelligent control unit (2) predicts a sharp drop in light radiation based on the cloud monitoring camera (6), it will instruct the transformer regulation module (4) to reduce the output voltage, prioritize maintaining the system operation without tripping, and coordinate to reduce the vibration frequency to prolong the material's heating reaction time, thereby achieving dynamic intelligent control of the heating power. During the discharge stage, as the material moves backward, the further away from the fixed support shaft (40), the greater the amplitude of the heat-conducting carrier plate (20). The product that has completed the reaction is forcibly thrown out at the discharge port (13) with the largest amplitude, thus successfully completing the product collection.

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