Light heat storage energy comprehensive utilization system

Abstract

The utility model relates to the technical field of energy utilization, and provides a light heat storage energy comprehensive utilization system which comprises a photovoltaic part, a heat storage part and a power utilization part, and the heat utilization part is connected with the heat storage part. The power utilization part is connected with the photovoltaic part; the heat utilization part is connected with the heat storage part; the heat storage part comprises a molten salt furnace, and the molten salt furnace is connected with the photovoltaic part; the rotating shaft is rotationally arranged in the molten salt furnace; the steam group is arranged on one side of the rotating shaft; and the fireproof group is arranged on the other side of the rotating shaft. According to the technical scheme, the problems that in the prior art, the photovoltaic power generation time cannot completely meet the industrial steam requirement, and the steam consumption cost in the non-photovoltaic power generation period is high are solved. And meanwhile, the water inlet temperature can be increased (the water inlet temperature is increased to 50-80 DEG C) through the photo-thermal assembly, so that the energy consumption of steam generated by the steam set is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of energy utilization, and particularly to a comprehensive utilization system for optical storage heat energy. Background Technique

[0002] With the popularization and application of industrial and commercial distributed photovoltaics, a large number of factory roofs in industrial enterprises can be utilized. At the same time, the power consumption of industrial enterprises is relatively large, providing a good application scenario for self-use distributed photovoltaics. Especially for industrial enterprises with steam demand, using natural gas as fuel for steam boilers is costly and difficult to store gas. There is an urgent need to introduce new energy sources such as photovoltaics and wind energy. At present, the more common new energy means is photovoltaic power generation. However, during non-photovoltaic power generation periods, there is still the problem of high steam costs. At the same time, the energy required to directly generate steam from cold water is relatively high, and the obvious temperature rise of photovoltaic modules also reduces the power generation efficiency. Content of the Utility Model

[0003] The utility model provides a comprehensive utilization system for optical storage heat energy, which solves the problem in related technologies that the photovoltaic power generation time cannot fully match the industrial steam demand, and there is a high cost of using steam during non-photovoltaic power generation periods. At the same time, the use of solar heat to increase the inlet water temperature greatly saves steam energy consumption.

[0004] The technical solution of the utility model is as follows:

[0005] A comprehensive utilization system for optical storage heat energy, comprising: a photovoltaic part, a heat storage part, an electricity consumption part, and a heat utilization part. The heat storage part is connected to the photovoltaic part; the electricity consumption part is connected to the photovoltaic part; the heat utilization part is connected to the heat storage part; the heat storage part includes:

[0006] A molten salt furnace, which is connected to the photovoltaic part;

[0007] A rotating shaft, which is rotatably arranged in the molten salt furnace;

[0008] A steam group, which is arranged on one side of the rotating shaft;

[0009] A refractory group, which is arranged on the other side of the rotating shaft.

[0010] Optionally, the photovoltaic part includes a photovoltaic module, a solar heat component, a busbar box, an inverter, and an anti-backflow device connected in sequence.

[0011] Optionally, one end of the steam group is connected to the solar heat component through a pipeline, and the other end is connected to the heat utilization part.

[0012] Optionally, the heat utilization part includes a steam boiler and a pipeline group connected in sequence.

[0013] Optionally, the molten salt furnace includes molten salt and a heating component, and the heating component is connected to the photovoltaic part.

[0014] Optionally, the steam unit has a liquid inlet and a steam outlet.

[0015] Optionally, the photovoltaic part and the heat storage part are connected by both a pipeline and a cable, the photovoltaic part and the power consumption part are connected by a cable, and the heat storage part and the heat consumption part are connected by a pipeline.

[0016] Optionally, it further includes:

[0017] A first bearing, one end of the rotating shaft is rotatably arranged on the molten salt furnace through the first bearing;

[0018] A second bearing, the other end of the rotating shaft is rotatably arranged on the molten salt furnace through the second bearing.

[0019] The working principle and beneficial effects of the present utility model are as follows:

[0020] In the present utility model, in a comprehensive utilization system of solar energy storage and heat, it includes a photovoltaic part, a heat storage part, a power consumption part, and a heat consumption part. The photovoltaic part generates electricity during the day, and part of the generated electric energy is supplied to the power consumption part, and the other part is supplied to the heat consumption part. The heat generated by the photovoltaic part increases the water temperature through a solar thermal component, and the generated hot water is supplied to the steam unit. The heat storage part mainly consists of a molten salt furnace, a rotating shaft, a steam unit, and a refractory group. The molten salt furnace is connected to the photovoltaic part and receives the electric energy from the photovoltaic part to heat the molten salt furnace. The rotating shaft is rotatably arranged in the molten salt furnace. When in use, the steam unit is located facing the molten salt direction. Under the high temperature action of the molten salt furnace, the steam unit converts water into steam and discharges it for practical use. During the non-heat consumption period, the rotating shaft rotates, and the refractory group is located facing the molten salt direction, enabling the molten salt furnace to accumulate and store thermal energy using the surplus electricity of the photovoltaic part.

[0021] The advantages are as follows. First, the comprehensive utilization system of solar energy storage and heat makes full use of the heat generated during the photovoltaic power generation process, improves the comprehensive utilization efficiency of energy, and reduces energy waste. By using solar heat for heating the incoming water, the effective utilization of energy is achieved. Second, the molten salt furnace is used for thermal energy accumulation and storage, and steam can also be generated during the non-photovoltaic power generation period, realizing the time transfer of energy, ensuring that steam energy can be provided for the heat consumption part even in the absence of light, and improving the stability and reliability of energy supply. Third, each part of the system works in coordination, and the photovoltaic part, the heat storage part, the power consumption part, and the heat consumption part cooperate with each other, realizing the all-round efficient utilization of solar energy from power generation to heat storage, heat consumption, and power consumption, reducing the dependence on traditional fossil energy, and reducing environmental pollution. Finally, the setting of the rotating shaft enables the steam unit and the refractory group to be adjusted according to the needs of different periods, improving the flexibility and adaptability of the system. Description of the Drawings

[0022] The above characteristics, technical features, advantages and their implementation manners of the present utility model will be further described below in a clear and understandable manner in conjunction with the accompanying drawings.

[0023] Figure 1 It is a structural connection diagram of the present utility model;

[0024] Figure 2 It is a schematic diagram of a partial structure of the present utility model.

[0025] In the figures: 1, photovoltaic part; 2, heat storage part; 3, power consumption part; 4, heat consumption part; 201, molten salt furnace; 204, rotating shaft; 202, steam group; 203, refractory group; 2011, molten salt; 2012, heating component; 2021, liquid inlet; 2022, steam outlet; 205, first bearing; 206, second bearing. Specific embodiments

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the specific embodiments of the present utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings, and other embodiments can be obtained.

[0027] To make the drawings concise, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some figures, components with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also means "more than one" situation, and "several" includes "two" and "more than two".

[0028] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the connection inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0029] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions, and cannot be understood as indicating or implying relative importance.

[0030] Refer to Figures 1 to 2, which is the first embodiment of the present utility model, proposes a comprehensive utilization system for optical storage and heat energy, including: a photovoltaic section 1, a heat storage section 2, an electricity consumption section 3, and a heat utilization section 4. The heat storage section 2 is connected to the photovoltaic section 1; the electricity consumption section 3 is connected to the photovoltaic section 1; the heat utilization section 4 is connected to the heat storage section 2; the heat storage section 2 includes a molten salt furnace 201, and the molten salt furnace 201 is connected to the photovoltaic section 1; a rotating shaft 204 is rotatably arranged in the molten salt furnace 201; a steam group 202 is arranged on one side of the rotating shaft 204; a refractory group 203 is arranged on the other side of the rotating shaft 204.

[0031] In this embodiment, in a comprehensive utilization system for optical storage and heat energy, it includes a photovoltaic section 1, a heat storage section 2, an electricity consumption section 3, and a heat utilization section 4. The photovoltaic section 1 generates photovoltaic power during the day. A part of the generated electric energy is supplied to the electricity consumption section 3, and the other part is supplied to the heat utilization section 4. The heat generated by the photovoltaic section 1 increases the water temperature through a solar thermal component, and the generated hot water is supplied to the steam group 202. The heat storage section 2 is mainly composed of a molten salt furnace 201, a rotating shaft 204, a steam group 202, and a refractory group 203. The molten salt furnace 201 is connected to the photovoltaic section 1 and receives the electric energy from the photovoltaic section 1 to heat the molten salt furnace 201. The rotating shaft 204 is rotatably arranged in the molten salt furnace 201. When in use, the steam group 202 is located facing the molten salt 2011 direction. Under the high temperature action of the molten salt furnace 201, the steam group 202 converts water into steam and discharges it for practical use. During non-heat-using periods, the rotating shaft 204 rotates, and the refractory group 203 is located facing the molten salt 2011 direction, enabling the molten salt furnace 201 to accumulate and store thermal energy using the surplus electricity of the photovoltaic section 1.

[0032] The advantages are as follows. Firstly, this comprehensive utilization system for optical storage and heat energy makes full use of the heat generated during the photovoltaic power generation process, improves the comprehensive utilization efficiency of energy, and reduces energy waste. By using solar heat for heating the incoming water, the effective utilization of energy is achieved. Secondly, the molten salt furnace 201 is used for thermal energy accumulation and storage, and steam can also be generated during non-photovoltaic power generation periods, realizing the time transfer of energy, ensuring that steam energy can be provided for the heat utilization section 4 even in the absence of light, and improving the stability and reliability of energy supply. Moreover, each part of the system works in coordination, and the photovoltaic section 1, the heat storage section 2, the electricity consumption section 3, and the heat utilization section 4 cooperate with each other to achieve the all-round efficient utilization of solar energy from power generation to heat storage, heat utilization, and electricity consumption, reducing the dependence on traditional fossil energy and reducing environmental pollution. Finally, the setting of the rotating shaft 204 enables the steam group 202 and the refractory group 203 to adjust their positions according to the needs of different periods, improving the flexibility and adaptability of the system.

[0033] Furthermore, the photovoltaic section 1 includes a photovoltaic module, a solar thermal component, a busbar box, an inverter, and an anti-backflow device connected in sequence.

[0034] In this embodiment, the photovoltaic section 1 includes a photovoltaic module, a solar thermal module, a busbar box, an inverter, and an anti-backflow device, which are connected in sequence. The photovoltaic module uses high-efficiency monocrystalline silicon solar panels and is installed on rooftops and open spaces to receive sunlight to the greatest extent. The busbar box has intelligent monitoring and management functions, can monitor the working status of each photovoltaic module in real time, and efficiently converge the direct current generated by multiple groups of photovoltaic modules. The inverter uses advanced power electronics technology and can quickly and stably convert direct current into alternating current that meets the requirements of the power consumption section 3 and the heat storage section 2. The anti-backflow device consists of a high-precision sensor and a fast-response control module, can accurately monitor the current flow direction, and immediately activates a protection mechanism once a backflow occurs to prevent damage to the photovoltaic system.

[0035] The advantages are that it ensures the stable and efficient output of electrical energy by the photovoltaic system, improving the reliability and safety of photovoltaic power generation. The intelligent monitoring function of the busbar box facilitates the timely discovery and solution of faults in the photovoltaic modules. The high-efficiency conversion ability of the inverter meets the requirements of different devices for the form of electrical energy. The anti-backflow device effectively protects the photovoltaic system and extends the service life of the equipment.

[0036] Furthermore, one end of the steam group 202 is connected to the solar thermal module through a pipeline, and the other end is connected to the heat-using section 4.

[0037] In this embodiment, in the integrated solar photovoltaic-thermal energy utilization system, the steam group 202 is connected to the solar thermal module and the heat-using section 4 through specific pipelines. The solar thermal module can be a device composed of multiple condenser mirrors and heat collection pipes. The condenser mirrors focus sunlight on the heat collection pipes. After the heat transfer medium in the heat collection pipes is heated, it transfers heat to the pipeline at one end of the steam group 202 connected to the solar thermal module. There is a heat exchange structure inside the steam group 202. When the heat from the solar thermal module is transferred to the steam group 202, through heat exchange, water or other working liquids inside the steam group 202 are converted into steam. The pipeline at one end of the steam group 202 connected to the heat-using section 4 transports the generated steam to the heat-using section 4, and the heat-using section 4 can be a drying device in industrial production, a radiator in a heating system, etc.

[0038] The advantages are as follows. First, by connecting the steam group 202 to the solar thermal module and the heat-using section 4, the efficient utilization of solar photovoltaic-thermal energy is realized. The solar thermal module converts solar energy into heat energy, and then through the steam group 202, it is converted into steam to provide energy for the heat-using section 4, improving the comprehensive energy utilization efficiency. Second, the reasonable design and material selection of the connecting pipelines ensure the stable transmission of heat and steam. The pipeline material with high temperature and high pressure resistance and good sealing performance reduces the energy loss and leakage risk, improving the safety and reliability of the system.

[0039] Furthermore, the heat-using section 4 includes a steam boiler and a pipeline group connected in sequence.

[0040] In this embodiment, the heat-using part 4 includes a steam boiler and a pipeline group connected in sequence. The steam boiler adopts an energy-efficient boiler with advanced combustion and heat exchange technologies. The pipeline group is composed of high-quality pipelines resistant to high temperature and high pressure, as well as precise valves and instruments. The steam boiler receives the steam generated by the steam group 202 of the heat storage part 2 and transports the steam to different heat-using places through the pipeline group, such as industrial production workshops, residential heating systems, etc. The flow rate and pressure of the steam can be precisely controlled by adjusting the valves to meet different heat-using requirements.

[0041] The advantages are that it provides a stable and reliable steam energy source for heat-using requirements and improves energy utilization efficiency. The energy-efficient steam boiler reduces energy consumption, and the precise control function of the pipeline group ensures the safety and stability of steam transportation.

[0042] Furthermore, the molten salt furnace 201 includes molten salt 2011 and a heating component 2012, and the heating component 2012 is connected to the photovoltaic part 1.

[0043] In this embodiment, the molten salt furnace 201 includes molten salt 2011 and a heating component 2012, and the heating component 2012 is connected to the photovoltaic part 1. The molten salt 2011 is a selected mixture of molten salts 2011 with high heat storage capacity and good thermal stability. The heating component 2012 uses high-efficiency electric heating elements and receives the electric energy provided by the photovoltaic part 1 through cables to heat the molten salt 2011. The outer shell of the molten salt furnace 201 is made of materials resistant to high temperature and corrosion, with good heat insulation performance to reduce heat loss.

[0044] The advantages are that it realizes the efficient conversion and storage of solar energy into heat energy. The molten salt 2011 with high heat storage capacity can store a large amount of heat energy during the day for use during non-photovoltaic power generation periods, improving the stability of energy supply.

[0045] Furthermore, the steam group 202 has a liquid inlet 2021 and a steam outlet 2022.

[0046] In this embodiment, the steam group 202 has a liquid inlet 2021 and a steam outlet 2022. The liquid inlet 2021 is connected to a stable water source supply system, and the water entering the steam group 202 is ensured to be clean and impurity-free through pipelines and filters. The steam outlet 2022 is connected to the steam boiler of the heat-using part 4 or other heat-using equipment. The inside of the steam group 202 is composed of high-efficiency heat exchange pipelines, which can quickly transfer the heat of the molten salt furnace 201 to the liquid to convert it into steam.

[0047] The advantages are that it conveniently realizes the conversion of water into steam and provides steam energy for the heat-using part 4. The filter ensures the steam quality, and the high-efficiency heat exchange pipelines improve the steam generation efficiency.

[0048] Furthermore, the photovoltaic section 1 and the heat storage section 2 are connected both by pipelines and by cables. The photovoltaic section 1 and the electricity-consuming section 3 are connected by cables, and the heat storage section 2 and the heat-using section 4 are connected by pipelines.

[0049] In this embodiment, the photovoltaic section 1 and the heat storage section 2 are connected by high-quality cables and pipelines to ensure stable power transmission. The photovoltaic section 1 and the electricity-consuming section 3 are also connected by cables to meet the power demand of the electricity load. The heat storage section 2 and the heat-using section 4 are connected by sturdy and heat-resistant pipelines. Sealing joints and valves with good sealing performance are used at the pipeline connections to prevent steam leakage and power loss. The cables and pipelines are regularly inspected and maintained to ensure the safe operation of the system.

[0050] The advantage is to ensure the efficiency and stability of energy transmission between various parts. High-quality cables and pipelines reduce energy loss, and sealing joints and valves with good sealing performance improve the safety and reliability of the system. Regular maintenance ensures the long-term stable operation of the system.

[0051] Furthermore, a first bearing 205 is also included. One end of the rotating shaft 204 is rotatably arranged on the molten salt furnace 201 through the first bearing 205; the other end of the rotating shaft 204 is rotatably arranged on the molten salt furnace 201 through the second bearing 206.

[0052] In this embodiment, one end of the rotating shaft 204 is rotatably arranged on the molten salt furnace 201 through the first bearing 205, and the other end is rotatably arranged on the molten salt furnace 201 through the second bearing 206. The first bearing 205 and the second bearing 206 are high-performance heat-resistant bearings with good load-bearing capacity and low friction coefficient. During the day and non-photovoltaic power generation periods, the rotating shaft 204 rotates accurately under the drive of the motor, driving the steam group 202 and the refractory group 203 to switch positions. At the same time, a lubrication system is equipped for the bearings to ensure the long-term stable operation of the bearings.

[0053] The advantage is to improve the rotation stability and reliability of the rotating shaft 204. The heat-resistant bearings adapt to the high-temperature environment of the molten salt furnace 201, the motor drive ensures the accurate switching of positions of the rotating shaft 204, and the lubrication system extends the service life of the bearings.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A comprehensive utilization system for optical energy storage and heat, characterized in that, Comprising: A photovoltaic section (1), a heat storage section (2), an electricity consumption section (3), and a heat consumption section (4). The heat storage section (2) is connected to the photovoltaic section (1); the electricity consumption section (3) is connected to the photovoltaic section (1); the heat consumption section (4) is connected to the heat storage section (2); the heat storage section (2) includes: A molten salt furnace (201), which is connected to the photovoltaic section (1); A rotating shaft (204), which is rotatably arranged inside the molten salt furnace (201); A steam group (202), which is arranged on one side of the rotating shaft (204); A refractory group (203), which is arranged on the other side of the rotating shaft (204).

2. The integrated solar energy storage and thermal energy utilization system according to claim 1, wherein, The photovoltaic section (1) includes a photovoltaic module, a solar thermal module, a busbar box, an inverter, and an anti-backflow device connected in sequence.

3. A comprehensive utilization system for optical energy storage and heat energy as claimed in claim 2, characterized in that One end of the steam group (202) is connected to the solar thermal module through a pipeline, and the other end is connected to the heat consumption section (4).

4. A comprehensive utilization system for optical energy storage and heat energy, according to claim 1, characterized in that, The heat consumption section (4) includes a steam boiler and a pipeline group connected in sequence.

5. A comprehensive utilization system for optical energy storage and heat energy, according to claim 1, characterized in that The molten salt furnace (201) includes molten salt (2011) and a heating component (2012), and the heating component (2012) is connected to the photovoltaic section (1).

6. A comprehensive utilization system for optical energy storage and heat energy, according to claim 1, characterized in that The steam group (202) has a liquid inlet (2021) and a steam outlet (2022).

7. A comprehensive utilization system for optical energy storage and heat energy, according to claim 1, characterized in that The photovoltaic section (1) and the heat storage section (2) are connected both by pipelines and by cables. The photovoltaic section (1) and the electricity consumption section (3) are connected by cables. The heat storage section (2) and the heat consumption section (4) are connected by pipelines.

8. A comprehensive utilization system for optical energy storage and heat energy, according to claim 1, characterized in that Also included: A first bearing (205), one end of the rotating shaft (204) is rotatably arranged on the molten salt furnace (201) through the first bearing (205); A second bearing (206), the other end of the rotating shaft (204) is rotatably arranged on the molten salt furnace (201) through the second bearing (206).

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