Solar photovoltaic power generation and heating device based on solid heat storage

Abstract

The utility model relates to photovoltaic power generation technical field, concretely for a kind of solar photovoltaic power generation heating device based on solid heat storage, including heat storage box, its top is directly above and is provided with energy storage mechanism;Mounting pipe, its equidistance and integrally formed in the bottom end inside of heat storage box, the inside of the mounting pipe is provided with heating mechanism;The heating mechanism is matched with energy storage mechanism.The utility model reaches the effect that when electric heating pipe is damaged, it can be independently quickly overhauled and replaced from the bottom of heat storage box by the cooperation of the quick detachable heating mechanism and energy storage mechanism, without removing heat storage structure and interrupting system operation, greatly reduce maintenance cost and time, solve the problem of maintenance difficulty and high cost caused by that electric heating wire is deeply buried in heat storage layer in prior art.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic power generation technology, specifically to a solar photovoltaic power generation heating device based on solid thermal storage. Background Technology

[0002] As a renewable energy source with unlimited reserves, wide distribution, and clean and pollution-free characteristics, solar energy has enormous application potential and market demand in the heating sector due to its efficient utilization technology.

[0003] As disclosed in CN219735441U, a solar photovoltaic power generation heating device based on solid thermal storage includes a heat storage shell, multiple sets of heating wires connected inside the heat storage shell, a heat storage layer sleeved on the heating wires, and an industrial fan connected to the heat storage shell. The industrial fan has an inlet pipe and an outlet pipe connected to its inlet and outlet ends, respectively, and the outlet pipe penetrates the heat storage shell. The beneficial effects of this invention are as follows: by combining solid thermal storage equipment with photovoltaic power generation for heating, the shortcomings of photovoltaic power generation can be effectively addressed, improving the utilization rate of power generation. The solid thermal storage device can absorb photovoltaic power during the day, convert it into heat energy for storage, and release heat at night, ensuring heating.

[0004] Although the aforementioned patent has several electric heating wires and a heat storage layer inside the heat storage shell, if the electric heating wires are damaged, because they are deeply buried inside the heat storage layer, the inspection and replacement process will be extremely cumbersome and time-consuming, requiring shutdown and removal of most of the heat storage structure, resulting in high system maintenance costs. Utility Model Content

[0005] The purpose of this invention is to provide a solar photovoltaic power generation and heating device based on solid thermal storage to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A solar photovoltaic power generation and heating device based on solid thermal storage, comprising: The thermal storage box has an energy storage mechanism installed at its top. The mounting tubes are integrally formed at equal intervals inside the bottom of the heat storage box, and a heating mechanism is provided inside the mounting tubes. The heating mechanism works in conjunction with the energy storage mechanism.

[0007] Preferably, the energy storage mechanism includes a mounting frame fixedly connected to the top of the heat storage box, and a photovoltaic panel fixedly connected to the top of the mounting frame. A photovoltaic control box is fixedly connected to the middle of the top right side of the heat storage box, and electrical components are installed inside the photovoltaic control box. Preferably, a heating mechanism is provided at both the upper and lower ends of the inner middle of the heat storage box. The heating mechanism consists of several horizontal pipes one and several horizontal pipes two. The several horizontal pipes one and several horizontal pipes two are crisscrossed and interconnected. Both ends of the horizontal pipe one in the middle are fixedly connected to pipe joints, and the two pipe joints extend to the outside of the heat storage box respectively. Preferably, the heating mechanism includes a heat-conducting sleeve fixedly connected inside the mounting tube, and a threaded head fixedly connected to one end of the heat-conducting sleeve. A rotating sleeve is threadedly connected to the outside of the threaded head. A fixed seat is rotatably connected to the end of the rotating sleeve away from the threaded head. An electric connector is fixedly connected to the middle of the fixed seat. An electric heating tube is fixedly connected to the end of the electric connector near the heat-conducting sleeve. The electric heating tube is movably disposed in the heat-conducting sleeve. Preferably, the electrical components include a photovoltaic controller, a battery pack, and a temperature controller. The input terminal of the photovoltaic controller is electrically connected to the photovoltaic panel, and its output terminal is electrically connected to the temperature controller and the battery pack, respectively. The temperature controller is electrically connected to an electrical connector. The control signal input terminal of the temperature controller is connected to a temperature sensor installed inside the heat storage tank. Preferably, the electrical components further include an inverter, and the output of the temperature controller is electrically connected to an electrical connector via the inverter.

[0008] Compared with the prior art, the beneficial effects of this utility model are: This solar photovoltaic power generation and heating device based on solid thermal storage achieves the effect of rapid repair and replacement of damaged electric heating tubes by using a combination of a quickly detachable heating mechanism and an energy storage mechanism. This eliminates the need to dismantle the thermal storage structure and interrupt system operation, greatly reducing maintenance costs and time. It also solves the problems of difficult and costly maintenance caused by the electric heating wires being deeply buried inside the thermal storage layer in existing technologies.

[0009] This solar photovoltaic power generation and heating device based on solid thermal storage achieves energy management by intelligently coordinating the use of a photovoltaic controller, a battery pack, and a temperature controller to prioritize the allocation of photovoltaic power according to the internal temperature of the thermal storage box. This ensures stable and reliable heating temperature while maximizing the direct utilization rate of solar energy and the efficiency of energy storage backup. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall main structure of this utility model; Figure 2 This is a schematic diagram of the mounting pipe installation structure of this utility model; Figure 3 This is a schematic diagram of the electric heating tube installation structure of this utility model; Figure 4 This is a schematic diagram of the horizontal tube installation structure of this utility model; Figure 5 This is a connection block diagram of the electrical control system of this utility model.

[0011] In the diagram: 1. Heat storage box; 2. Installation pipe; 3. Mounting frame; 4. Photovoltaic panel; 5. Photovoltaic control box; 6. Horizontal pipe one; 7. Horizontal pipe two; 8. Pipe joint; 9. Heat-conducting sleeve; 10. Threaded head; 11. Rotating sleeve; 12. Fixed base; 13. Electrical connector; 14. Electric heating tube. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] like Figure 1-5 As shown, this utility model provides a technical solution: A solar photovoltaic power generation and heating device based on solid-state thermal storage includes a thermal storage box 1 with an energy storage mechanism mounted on its top and an insulation layer on its inner wall. The energy storage mechanism includes a mounting frame 3 fixedly connected to the top of the thermal storage box 1 and a photovoltaic panel 4 fixedly connected to the top of the mounting frame 3. A photovoltaic control box 5 is fixedly connected to the middle of the top right side of the thermal storage box 1. The photovoltaic control box 5 contains electrical components, including a photovoltaic controller, a battery pack, and a temperature controller. The input terminal of the photovoltaic controller is electrically connected to the photovoltaic panel 4, and its output terminal is electrically connected to the temperature controller and the battery pack, respectively. The temperature controller is electrically connected to an electrical connector 13. The control signal input terminal of the temperature controller is connected to a temperature sensor located inside the thermal storage box 1. The electrical components also include an inverter, and the output terminal of the temperature controller is electrically connected to the electrical connector 13 through the inverter. Mounting pipes 2 are equidistant and integrated. The heating mechanism is installed inside the bottom of the heat storage tank 1 and the installation tube 2. The heating mechanism includes a heat-conducting sleeve 9 fixedly connected inside the installation tube 2 and a threaded head 10 fixedly connected to one end of the heat-conducting sleeve 9. The threaded head 10 is threadedly connected to a rotating sleeve 11. The end of the rotating sleeve 11 away from the threaded head 10 is rotatably connected to a fixed seat 12. The middle part of the fixed seat 12 is fixedly connected to an electric connector 13. The end of the electric connector 13 near the heat-conducting sleeve 9 is fixedly connected to an electric heating tube 14. The electric heating tube 14 is movably installed in the heat-conducting sleeve 9. The heating mechanism cooperates with the energy storage mechanism. The upper and lower ends of the middle part of the inner side of the heat storage tank 1 are provided with a heating mechanism. The heating mechanism is composed of several horizontal pipes 6 and several horizontal pipes 7. The several horizontal pipes 6 and several horizontal pipes 7 are crisscrossed and interconnected. The two ends of the middle horizontal pipe 6 are fixedly connected to pipe joints 8. The two pipe joints 8 extend to the outside of the heat storage tank 1 respectively. In this embodiment, by using the heating mechanism and the energy storage mechanism in combination, the electric heating tube 14 can be quickly inspected and replaced independently from the bottom of the heat storage box 1 when it is damaged. This eliminates the need to remove the heat storage structure and interrupt the system operation, greatly reducing maintenance costs and time. It also solves the problems of difficult maintenance and high costs caused by the electric heating wire being deeply buried inside the heat storage layer in the prior art.

[0014] Furthermore, through the intelligent collaborative use of the photovoltaic controller, battery pack, and temperature controller, the energy management effect of intelligently allocating photovoltaic power priority according to the internal temperature of the heat storage box 1 is achieved, which not only ensures the stability and reliability of the heating temperature, but also maximizes the direct utilization rate of solar energy and the energy storage backup efficiency.

[0015] Working principle: During the day, when sunlight shines, the photovoltaic panel 4 converts light energy into electrical energy. The generated electricity is delivered to the photovoltaic controller inside the photovoltaic control box 5. The photovoltaic controller prioritizes directing the electrical energy to the temperature controller. Simultaneously, a temperature sensor located inside the heat storage tank 1 monitors the temperature of the heat storage medium in real time and feeds the signal back to the temperature controller. If the temperature is lower than the set value, the temperature controller activates the circuit. The electrical energy, after being converted by the inverter, is supplied to the electric heating element 14 through the electrical connector 13. The heat generated by the electric heating element 14 directly heats the liquid phase heat storage medium in the heat storage tank 1 through the heat-conducting sleeve 9. When the temperature reaches the set upper limit, the temperature controller cuts off the power supply to the electric heating element 14, and heating stops. At this time, the photovoltaic controller redirects the light... Excess electrical energy generated by photovoltaic panel 4 is redirected to charge and store the battery pack. At night or when there is insufficient sunlight, the photovoltaic controller automatically switches the power supply to the battery pack. The electrical energy is also controlled by the temperature controller according to the temperature monitoring results, so as to continue to maintain the temperature inside the heat storage box 1 through the electric heating tube 14 and ensure continuous heating. The heat energy stored in the heat storage box 1 is conducted outward through the two sets of heating mechanisms formed by the crisscrossing and interconnected horizontal pipes 6 and 7 in the upper and lower layers. The pipe joint 8 of the upper heating mechanism is connected to the external gas phase pipeline, and the pipe joint 8 of the lower heating mechanism is connected to the external liquid phase pipeline. Finally, the heat is transported to the space that needs to be heated through the gas phase and liquid phase respectively.

[0016] When any electric heating element 14 malfunctions and needs replacement, maintenance personnel do not need to shut down the machine or operate the main structure of the heat storage tank 1; they only need to perform localized operations on the faulty point. The specific disassembly process is as follows: The operator first disconnects the power supply to the faulty electric heating element 14, and then, from outside the heat storage tank 1, manually rotates the rotating sleeve 11 connected to the target heat-conducting sleeve 9 counterclockwise. Since the rotating sleeve 11 is threadedly connected to the threaded head 10 fixed at one end of the heat-conducting sleeve 9, the rotation causes the rotating sleeve 11 to move backward along the thread axis, thereby driving the fixed seat 12, which is rotatably connected to its other end, to retract as well. When the fixed seat 12 retracts, the electrical connector 13 fixedly connected to its middle part and the electric heating element 14 fixedly connected to the front end of the electrical connector 13 are smoothly pulled out of the inner cavity of the heat-conducting sleeve 9 as a whole, until they are completely separated from the heat storage tank 1, completing the disassembly.

[0017] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A solar photovoltaic power generation and heating device based on solid-state thermal storage, characterized in that: include The heat storage box (1) has an energy storage mechanism installed directly above its top; The mounting tube (2) is integrally formed at equal intervals inside the bottom end of the heat storage box (1), and a heating mechanism is provided inside the mounting tube (2); The heating mechanism works in conjunction with the energy storage mechanism.

2. The solar photovoltaic power generation and heating device based on solid thermal storage according to claim 1, characterized in that: The energy storage mechanism includes a mounting frame (3) fixedly connected to the top of the heat storage box (1) and a photovoltaic panel (4) fixedly connected to the top of the mounting frame (3). A photovoltaic control box (5) is fixedly connected to the middle of the top right side of the heat storage box (1). Electrical components are installed inside the photovoltaic control box (5).

3. The solar photovoltaic power generation and heating device based on solid thermal storage according to claim 1, characterized in that: The inner middle of the heat storage box (1) is provided with a heating mechanism at both the upper and lower ends. The heating mechanism consists of several horizontal pipes (6) and several horizontal pipes (7). The horizontal pipes (6) and the horizontal pipes (7) are interwoven and interconnected. Both ends of the horizontal pipes (6) in the middle are fixedly connected with pipe joints (8). The two pipe joints (8) extend to the outside of the heat storage box (1).

4. A solar photovoltaic power generation and heating device based on solid thermal storage according to claim 1, characterized in that: The heating mechanism includes a heat-conducting sleeve (9) fixedly connected inside the mounting tube (2), and a threaded head (10) fixedly connected to one end of the heat-conducting sleeve (9). A rotating sleeve (11) is threadedly connected to the outside of the threaded head (10). A fixed seat (12) is rotatably connected to the end of the rotating sleeve (11) away from the threaded head (10). An electric connector (13) is fixedly connected to the middle of the fixed seat (12). An electric heating tube (14) is fixedly connected to the end of the electric connector (13) near the heat-conducting sleeve (9). The electric heating tube (14) is movably disposed in the heat-conducting sleeve (9).

5. A solar photovoltaic power generation and heating device based on solid thermal storage according to claim 2, characterized in that: The electrical components include a photovoltaic controller, a battery pack and a temperature controller. The input terminal of the photovoltaic controller is electrically connected to the photovoltaic panel (4), and its output terminal is electrically connected to the temperature controller and the battery pack respectively. The temperature controller is electrically connected to the electrical connector (13). The control signal input terminal of the temperature controller is connected to a temperature sensor installed inside the heat storage box (1).

6. A solar photovoltaic power generation and heating device based on solid thermal storage according to claim 5, characterized in that: The electrical components also include an inverter, and the output of the temperature controller is electrically connected to the electrical connector (13) via the inverter.

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