Energy-saving photovoltaic power generation energy storage equipment

Abstract

The utility model discloses an energy-saving photovoltaic power generation energy storage device which comprises an energy storage cabinet and a cabinet door hinged to the energy storage cabinet, an energy storage bin and an equipment bin are sequentially arranged in the energy storage cabinet from top to bottom, a plurality of evenly-distributed partition frame assemblies are fixedly installed in the middle of the energy storage bin, and energy storage batteries are installed on the partition frame assemblies. According to the energy-saving photovoltaic power generation energy storage equipment, the water pump is installed in the energy storage box, and the water filtering mechanism and the water pumping mechanism are additionally arranged, so that the underground water can be continuously pumped and filtered when the temperature in the energy storage box rises, and the energy is saved. The natural low-temperature characteristic of underground water is utilized, circulation and heat exchange are conducted in the energy storage box, so that the energy storage box is assisted in heat dissipation, the cooling speed is high, heat dissipation is stable, the defect that traditional energy storage equipment needs to be provided with compression refrigeration equipment for cooling is overcome, more energy is saved, the environment is protected, and the energy storage efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power generation and energy storage, in particular to an energy-saving photovoltaic power generation and energy storage device. Background Art

[0002] Photovoltaic power generation is a relatively popular way of utilizing clean energy in recent years. Since electric energy has the characteristic of being generated and used immediately, the power generation increases when there is sufficient sunlight during the day. In order to make full and reasonable use of the electricity generated by photovoltaic equipment, photovoltaic power stations will install energy storage equipment. The common photovoltaic energy storage equipment on the market at present is mainly an energy storage box, in which multiple groups of batteries are installed, and the energy storage of electricity is achieved through the batteries. For example, a photovoltaic power generation and energy storage device with application number CN202322002440.8 includes a chassis and a water cooling component. A heat dissipation component is arranged inside the chassis. The heat dissipation component includes two fans. The two fans are symmetrically connected to the inner wall of the chassis. The two ends of the chassis are symmetrically connected to a mounting seat. A filter plate is inserted inside the mounting seat, and a connecting frame is symmetrically connected to the inner wall of the chassis. The above common types of photovoltaic energy storage equipment have the following shortcomings in actual applications:

[0003] When storing energy, the battery pack works in the energy storage box. Due to the thermal effect of the current, the temperature inside the energy storage box will rise rapidly. This temperature rise phenomenon is particularly obvious in summer. Excessive temperature not only affects the energy storage efficiency, but also poses a safety hazard. Traditionally, fans and water cooling systems are installed to dissipate heat in the energy storage box. The circulating heat dissipation of the water cooling system requires power equipment such as pumps, compressors and fans, which undoubtedly increases power consumption and is not energy-saving and environmentally friendly. Utility Model Content

[0004] The purpose of the utility model is to provide an energy-saving photovoltaic power generation and energy storage device to solve the problem that the existing photovoltaic energy storage device mentioned in the above background technology has high power consumption and is not energy-saving and environmentally friendly.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an energy-saving photovoltaic power generation and energy storage device, comprising an energy storage cabinet and a cabinet door hinged on the energy storage cabinet, wherein the interior of the energy storage cabinet is provided with an energy storage bin and an equipment bin in sequence from top to bottom, a plurality of evenly distributed shelf assemblies are fixedly installed in the middle of the energy storage bin, an energy storage battery is installed on the shelf assembly, a water pump is fixedly installed at the bottom of the equipment bin, a water filter mechanism for groundwater filtering is fixedly installed at the water inlet of the water pump, a water pumping assembly is fixedly installed on one side of the water filter mechanism, a water supply pipe is fixedly connected to the water outlet of the water pump, a drainage pipe is fixedly installed at the bottom of the energy storage bin, the bottom of the drainage pipe is fixedly connected to an external drainage pipe, a solar controller and an inverter are fixedly installed on the inner side wall of the equipment bin, the water supply pipe and the drainage pipe are both fixedly connected to the shelf assembly, and the shelf assembly is used for supporting and exchanging heat of the energy storage battery.

[0006] Preferably, the partition assembly includes a partition frame and a serpentine heat exchange flat tube fixedly arranged in the middle of the partition frame, one end of the serpentine heat exchange flat tube is fixedly connected to a water inlet flat tube, the water inlet flat tube is fixedly connected to a water supply main pipe, the other end of the serpentine heat exchange flat tube is fixedly connected to a drainage flat tube, and the bottom end of the drainage flat tube is fixedly connected to a drainage main pipe; the partition design allows groundwater to flow between adjacent layers, which can improve the heat dissipation efficiency.

[0007] Preferably, an insulating pad is fixedly provided on the top of the partition frame, a T-shaped heat-conducting partition is fixedly provided in the middle of the insulating pad, the bottom of the T-shaped heat-conducting partition is provided on the serpentine heat exchange flat tube, and the energy storage battery is installed on the insulating pad; the temperature control of the energy storage battery is stable and efficient.

[0008] Preferably, the water filtering mechanism includes a water filtering storage tank and a sealing cover fixedly arranged on the water filtering storage tank, the inner wall of the water filtering storage tank is fixedly provided with a clamping step, a filter mesh cylinder is clamped on the clamping step, the bottom of the water filtering storage tank is fixedly connected to a drainage joint, the drainage joint is fixedly connected to the water inlet of a water pump, and the top of one side of the water filtering storage tank is fixedly connected to a water inlet joint, which is convenient for cleaning and maintenance and prevents groundwater debris from clogging the pipeline.

[0009] Preferably, the pumping assembly includes a pumping pipe and a water filter cover fixedly connected to the bottom end of the pumping pipe, and the top end of the pumping pipe is fixedly connected to the water inlet joint; it can filter groundwater and use the groundwater to cool the energy storage cabinet.

[0010] Preferably, a temperature switch is fixedly installed on the inner wall of the energy storage bin, and the water pump is electrically connected to the energy storage battery through the temperature switch; the temperature control is stable and efficient.

[0011] Preferably, both sides of the energy storage cabinet are provided with evenly distributed heat dissipation grille holes; ventilation and heat dissipation process.

[0012] Preferably, a mechanical lock is fixedly installed in the middle of the cabinet door, which is used to increase the anti-theft capability of the energy storage cabinet and has good sealing performance.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The photovoltaic power generation energy storage device is equipped with a water pump in the energy storage box, and additional water filtering and pumping mechanisms are provided. When the temperature in the energy storage box rises, groundwater can be continuously filtered, and the natural low temperature characteristics of groundwater are utilized to circulate and exchange heat in the energy storage box, thereby assisting the energy storage box in heat dissipation. The cooling speed is fast and the heat dissipation is stable, avoiding the disadvantage of traditional energy storage equipment that needs to install compression refrigeration equipment for cooling. It is more energy-saving and environmentally friendly, and the energy storage efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the photovoltaic power generation and energy storage device of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the partition frame assembly of the utility model;

[0017] Figure 3 This is a front cross-sectional view of the energy storage cabinet of the utility model;

[0018] Figure 4 It is a schematic cross-sectional view of the water filtering mechanism of the utility model.

[0019] In the figure: 1. energy storage cabinet; 2. cabinet door; 3. partition assembly; 31. partition frame; 32. insulation pad; 33. T-shaped heat conductive partition; 34. serpentine heat exchange flat tube; 35. water inlet flat tube; 36. discharge flat tube; 4. energy storage battery; 5. water pump; 6. solar controller; 7. inverter; 8. water pump; 9. water filter cover; 10. external discharge pipe; 11. mechanical lock; 12. heat dissipation grid hole; 13. energy storage bin; 14. equipment bin; 15. water supply main; 16. temperature switch; 17. drainage main; 18. water filtering mechanism; 181. water filtering tank; 182. sealing cover; 183. card step; 184. filter cylinder; 185. water inlet joint; 186. drainage joint. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] See also Figure 1-4 The utility model provides an energy-saving photovoltaic power generation and energy storage device, including an energy storage cabinet 1 and a cabinet door 2 hinged on the energy storage cabinet 1. The interior of the energy storage cabinet 1 is provided with an energy storage bin 13 and an equipment bin 14 from top to bottom. A plurality of evenly distributed partition assemblies 3 are fixedly installed in the middle of the energy storage bin 13. Energy storage batteries 4 are installed on the partition assemblies 3. A water pump 5 is fixedly installed at the bottom of the equipment bin 14. A water filter mechanism 18 for groundwater filtration is fixedly installed at the water inlet of the water pump 5. A water pump assembly is fixedly installed on one side of the water filter mechanism 18. The water outlet of the water pump 5 is fixedly connected to a water supply pipe 15, a drainage pipe 17 is fixedly installed at the bottom of the energy storage bin 13, and the bottom of the drainage pipe 17 is fixedly connected to an external discharge pipe 10. The water supply pipe 15 and the drainage pipe 17 are fixedly connected to the partition assembly 3, and the partition assembly 3 is used for supporting and exchanging heat for the energy storage battery 4. The inner wall of the equipment bin 14 is fixedly installed with a solar controller 6 and an inverter 7, and the inner wall of the energy storage bin 13 is fixedly installed with a temperature switch 16. The water pump 5 is electrically connected to the energy storage battery 4 through the temperature switch 16;

[0022] During use, the electricity generated by the photovoltaic panels during the day is regulated by the solar controller 6 and stored in the energy storage battery 4. At night, the electric energy in the energy storage battery 4 is converted by the inverter 7 and then connected to the power grid through the transformer to realize the supply and output of electric energy.

[0023] See also Figure 1 and Figure 2 Further, the partition frame assembly 3 includes a partition frame 31 and a serpentine heat exchange flat tube 34 fixedly arranged in the middle of the partition frame 31, one end of the serpentine heat exchange flat tube 34 is fixedly connected to a water inlet flat tube 35, the water inlet flat tube 35 is fixedly connected to the water supply main pipe 15, the other end of the serpentine heat exchange flat tube 34 is fixedly connected to a drainage flat tube 36, the bottom end of the drainage flat tube 36 is fixedly connected to the drainage main pipe 17, an insulating pad 32 is fixedly arranged at the top of the partition frame 31, a T-shaped heat conductive partition 33 is fixedly arranged in the middle of the insulating pad 32, the bottom of the T-shaped heat conductive partition 33 is arranged on the serpentine heat exchange flat tube 34, and the energy storage battery 4 is installed on the insulating pad 32;

[0024] When in use, groundwater penetrates into the serpentine heat exchange flat tube 34 through the water inlet flat tube 35, circulates in the serpentine heat exchange flat tube 34, and absorbs the heat in the energy storage cabinet 1. A part of the heat generated by the energy storage battery 4 is directly transferred to the serpentine heat exchange flat tube 34 through the T-shaped heat conductive partition 33 in the form of heat transfer. The circulating groundwater carries the heat and flows into the drainage main pipe 17 through the discharge flat tube 36, thereby realizing rapid heat dissipation and cooling inside the energy storage cabinet 1.

[0025] See also Figure 3 and Figure 4 Further, the water filtering mechanism 18 includes a water filtering tank 181 and a sealing cover 182 fixedly arranged on the water filtering tank 181, a clamping step 183 is fixedly arranged on the inner wall of the water filtering tank 181, a filter screen cylinder 184 is clamped on the clamping step 183, a drainage joint 186 is fixedly connected to the bottom of the water filtering tank 181, the drainage joint 186 is fixedly connected to the water inlet of the water pump 5, and a water inlet joint 185 is fixedly connected to the top of one side of the water filtering tank 181;

[0026] When in use, groundwater will enter the filtered water storage tank 181 through the pumping pipe 8 via the water inlet joint 185, and after the impurities are intercepted by the filter screen cylinder 184, it will enter the water supply main 15, thereby reducing the impurities in the groundwater and making the circulation of groundwater smoother. The staff can regularly shut down the equipment, open the sealing cover 182, take out the filter screen cylinder 184, and clean up the impurities, which is convenient for maintenance and management.

[0027] See also Figure 1 and Figure 3 Further, the water pumping assembly includes a water pumping pipe 8 and a water filter cover 9 fixedly connected to the bottom end of the water pumping pipe 8, and the top end of the water pumping pipe 8 is fixedly connected to the water inlet joint 185;

[0028] When in use, the bottom end of the water pumping pipe 8 goes deep into the ground, and the large volume of debris in the groundwater is intercepted by the water filter cover 9 during water pumping to prevent the pipeline from being blocked.

[0029] See also Figure 1 Furthermore, evenly distributed heat dissipation grille holes 12 are provided on both sides of the energy storage cabinet 1, and a mechanical lock 11 is fixedly installed in the middle of the cabinet door 2;

[0030] When in use, external air can penetrate into the energy storage cabinet 1 through the heat dissipation grid holes 12, and the air can circulate, thereby improving the heat dissipation effect of the energy storage device.

[0031] When the embodiment of the present application is in use: when the temperature switch 16 detects that the temperature in the energy storage cabinet 1 is higher than the set value, the water pump 5 will work and generate negative pressure in the filtered water storage tank 181. At this time, the groundwater will enter the filtered water storage tank 181 through the water pumping pipe 8 via the water inlet joint 185, intercept impurities through the filter screen 184, enter the water supply main pipe 15, and then be diverted into the water inlet flat pipe 35, circulate in the serpentine heat exchange flat pipe 34, absorb the heat in the energy storage cabinet 1, and part of the heat generated by the energy storage battery 4 is directly transferred to the serpentine heat exchange flat pipe 34 through the T-shaped heat conductive partition 33 in the form of heat transfer. The circulating groundwater carries the heat and flows into the drainage main pipe 17 through the drainage flat pipe 36, and finally is discharged back to the underground well through the external discharge pipe 10 or the pumped groundwater is collected and stored, making full use of the low temperature of the groundwater to achieve temperature control of the energy storage equipment.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An energy-saving photovoltaic power generation and energy storage device, comprising an energy storage cabinet (1) and a cabinet door (2) hinged on the energy storage cabinet (1), characterized in that: The energy storage cabinet (1) is provided with an energy storage bin (13) and an equipment bin (14) in order from top to bottom. A plurality of evenly distributed shelf assemblies (3) are fixedly installed in the middle of the energy storage bin (13). Energy storage batteries (4) are installed on the shelf assemblies (3). A water pump (5) is fixedly installed at the bottom of the equipment bin (14). A water filter mechanism (18) for groundwater filtration is fixedly installed at the water inlet of the water pump (5). A water pumping assembly is fixedly installed on one side of the water filter mechanism (18). The water outlet of the water pump (5) is fixedly connected to a water supply pipe (15), the bottom of the energy storage bin (13) is fixedly installed with a drainage pipe (17), the bottom of the drainage pipe (17) is fixedly connected to an external drainage pipe (10), the inner wall of the equipment bin (14) is fixedly installed with a solar controller (6) and an inverter (7), the water supply pipe (15) and the drainage pipe (17) are both fixedly connected to a partition assembly (3), and the partition assembly (3) is used for supporting and exchanging heat with the energy storage battery (4).

2. An energy-saving photovoltaic power generation and energy storage device according to claim 1, characterized in that: The partition frame assembly (3) comprises a partition frame (31) and a serpentine heat exchange flat tube (34) fixedly arranged in the middle of the partition frame (31); one end of the serpentine heat exchange flat tube (34) is fixedly connected to a water inlet flat tube (35), and the water inlet flat tube (35) is fixedly connected to a water supply main pipe (15); the other end of the serpentine heat exchange flat tube (34) is fixedly connected to a drainage flat tube (36), and the bottom end of the drainage flat tube (36) is fixedly connected to a drainage main pipe (17).

3. An energy-saving photovoltaic power generation and energy storage device according to claim 2, characterized in that: An insulating pad (32) is fixedly arranged at the top of the partition frame (31), a T-shaped heat-conducting partition (33) is fixedly arranged in the middle of the insulating pad (32), the bottom of the T-shaped heat-conducting partition (33) is arranged on the serpentine heat exchange flat tube (34), and the energy storage battery (4) is mounted on the insulating pad (32).

4. The energy-saving photovoltaic power generation and energy storage device according to claim 1, characterized in that: The water filtering mechanism (18) comprises a water filtering storage tank (181) and a sealing cover (182) fixedly arranged on the water filtering storage tank (181); a clamping step (183) is fixedly arranged on the inner side wall of the water filtering storage tank (181); a filter screen cylinder (184) is clamped on the clamping step (183); a drainage joint (186) is fixedly connected to the bottom of the water filtering storage tank (181); the drainage joint (186) is fixedly connected to the water inlet of a water pump (5); and a water inlet joint (185) is fixedly connected to the top of one side of the water filtering storage tank (181).

5. The energy-saving photovoltaic power generation and energy storage device according to claim 4, characterized in that: The water pumping assembly comprises a water pumping pipe (8) and a water filter cover (9) fixedly connected to the bottom end of the water pumping pipe (8); the top end of the water pumping pipe (8) is fixedly connected to the water inlet joint (185).

6. The energy-saving photovoltaic power generation and energy storage device according to claim 1, characterized in that: A temperature switch (16) is fixedly mounted on the inner wall of the energy storage bin (13), and the water pump (5) is electrically connected to the energy storage battery (4) via the temperature switch (16).

7. The energy-saving photovoltaic power generation and energy storage device according to claim 1, characterized in that: Both sides of the energy storage cabinet (1) are provided with evenly distributed heat dissipation grille holes (12).

8. The energy-saving photovoltaic power generation and energy storage device according to claim 1, characterized in that: A mechanical lock (11) is fixedly installed in the middle of the cabinet door (2).

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