Energy storage alternating current all-in-one machine and photovoltaic system

Abstract

The embodiment of the invention provides an energy storage alternating current all-in-one machine and a photovoltaic system, and relates to the technical field of energy storage equipment. The energy storage and communication all-in-one machine comprises a container, an oil pool and an interlayer, and the oil pool is located in the container and arranged at the bottom of the container. The interlayer is arranged in the oil pool, the interlayer is used for dividing an inner cavity of the oil pool into an upper cavity and a lower cavity, the interlayer is provided with at least one through hole, and the through hole is used for communicating the upper cavity with the lower cavity. The oil pool and the container are integrated, that is, the oil pool is contained in the container, so that the oil pool can be prevented from being independently built on site, the cost can be reduced, the construction difficulty can be reduced, and soil is not easily polluted. In addition, the oil pool is designed into the upper chamber and the lower chamber which are separated, so that the oil collecting space can be increased, and a large amount of oil can be collected.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage equipment, and in particular to an energy storage AC integrated machine and a photovoltaic system. Background Art

[0002] Energy storage AC integrated machines are usually used in photovoltaic power generation projects. Some energy storage AC integrated machines installed in photovoltaic systems need to be equipped with oil pools that can store transformer oil. The main function of the oil pool is to collect and store waste oil to prevent environmental pollution. The oil pool can collect waste oil discharged by transformers and other equipment in accident conditions to prevent the waste oil from being directly discharged into the environment and causing pollution.

[0003] As a storage facility, the oil collection tank can temporarily store waste oil to ensure that there is enough time and space to process the waste oil. However, most of the oil pools in the energy storage market are built outside the product through infrastructure, which is complex and costly to build. It is also easy to cause soil pollution when in use. Summary of the invention

[0004] The present invention provides an integrated energy storage AC machine and a photovoltaic system, which can eliminate the need to build a base oil pool, reduce production costs, and can also achieve a larger amount of oil collection.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] An embodiment of the present invention provides an energy storage AC integrated machine, which includes:

[0007] container;

[0008] An oil pool, the oil pool is located in the container and is arranged at the bottom of the container;

[0009] A partition layer is arranged in the oil pool, and the partition layer is used to separate the inner cavity of the oil pool into an upper chamber and a lower chamber. The partition layer is provided with at least one through hole, and the through hole is used to connect the upper chamber and the lower chamber.

[0010] In an optional implementation, the energy storage AC integrated machine further includes a filter element, and the filter element is disposed in the through hole.

[0011] In an optional embodiment, the filter element is a floor drain.

[0012] In an optional embodiment, the energy storage AC integrated machine also includes a plurality of reinforcing ribs, and a plurality of reinforcing ribs are also arranged in the upper chamber, and the plurality of reinforcing ribs are used to divide the upper chamber into a plurality of small chambers; each of the reinforcing ribs is provided with at least one notch to enable the plurality of small chambers to be interconnected.

[0013] In an optional embodiment, a wire groove is opened on the reinforcing rib, and the wire groove is used to place the cable tube.

[0014] In an optional embodiment, a partition wall is provided at the bottom of the container. There are two partition walls, the two partition walls are arranged at intervals, and the two partition walls and the bottom of the container together enclose the oil pool.

[0015] In an optional implementation, the energy storage AC integrated machine further includes a transformer, and the oil pool is disposed below the transformer.

[0016] In an optional embodiment, the oil pool is provided with at least one oil drain hole, and the oil drain hole is used to connect the lower chamber with the external environment.

[0017] In an optional embodiment, the oil drain hole includes a first oil drain hole and a second oil drain hole, the first oil drain hole is provided with an oil drain valve, and the second oil drain hole is provided with an oil-water separator.

[0018] An embodiment of the present invention further provides a photovoltaic system including a photovoltaic module and the energy storage AC integrated machine described in any one of the above embodiments, wherein the photovoltaic module is connected to the energy storage AC integrated machine.

[0019] The beneficial effects of the energy storage AC integrated machine of the embodiment of the present invention include:

[0020] The energy storage AC integrated machine includes a container, an oil pool and a partition. The oil pool is located in the container and is arranged at the bottom of the container. By integrating the oil pool with the container, that is, the oil pool is included in the container, it is possible to avoid the need to build a separate oil pool on site, which can reduce costs, reduce construction difficulty, and is not easy to cause soil pollution. In addition, a partition is arranged in the oil pool, and the partition is used to separate the inner cavity of the oil pool into an upper chamber and a lower chamber. The partition is provided with at least one through hole, and the through hole is used to connect the upper chamber and the lower chamber. By designing the oil pool as two chambers separated by upper and lower parts, the oil collection space can be increased, and a larger amount of oil can be collected. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of a first-viewing angle of view of an energy storage AC integrated machine provided in an embodiment of the present invention;

[0023] Figure 2A schematic diagram of a second viewing angle of an energy storage AC integrated machine provided in an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of an AA section provided in an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of a BB cross section provided in an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of a CC cross section provided in an embodiment of the present invention;

[0027] Figure 6 A schematic diagram of a DD cross section provided in an embodiment of the present invention;

[0028] Figure 7 It is a schematic diagram of an energy storage AC integrated machine including a transformer provided in an embodiment of the present invention.

[0029] Icons: 1000-energy storage AC integrated machine; 100-container; 200-oil pool; 210-upper chamber; 220-lower chamber; 230-oil drain hole; 231-first oil drain hole; 232-second oil drain hole; 240-oil drain valve; 250-oil-water separator; 300-partition; 310-through hole; 400-filter element; 500-reinforcement rib; 510-notch; 520-cable trough; 600-cable pipe; 700-partition wall; 800-transformer. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0035] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0036] Energy storage AC integrated machines are usually used in photovoltaic power generation projects. Some energy storage AC integrated machines installed in photovoltaic systems need to be equipped with oil pools that can store transformer oil. The main function of the oil collection pool is to collect and store waste oil to prevent environmental pollution. The oil collection pool can collect waste oil discharged by transformers and other equipment in accident conditions to prevent these waste oils from being directly discharged into the environment and causing pollution. As a storage facility, the oil collection pool can temporarily store waste oil to ensure that there is enough time and space to handle these waste oils. However, most of the oil pools in the energy storage market are currently built outside the product through infrastructure, which is complex and costly to build. And it is easy to pollute the soil when used.

[0037] Based on this, see Figure 1 , Figure 2 and Figure 3 The energy storage AC integrated machine 1000 and photovoltaic system provided in the embodiments of the present invention can effectively improve the technical problems mentioned above. The energy storage AC integrated machine 1000 does not need to build a base oil pool 200, which reduces production costs and can also achieve a large amount of oil collection. The energy storage AC integrated machine 1000 can be applied to photovoltaic systems, power stations, etc., and photovoltaic systems and other equipment with the energy storage AC integrated machine 1000 also have the same functions as mentioned above, which will not be repeated here.

[0038] The photovoltaic system provided in this embodiment (not shown in the figure) includes a photovoltaic component and an energy storage AC integrated machine 1000, and the photovoltaic component is connected to the energy storage AC integrated machine 1000. The photovoltaic component is electrically connected to the energy storage battery or inverter in the energy storage AC integrated machine 1000. The photovoltaic component can convert solar energy into electrical energy. After the electrical energy passes through the controller and the inverter, a part of the electrical energy is directly supplied to the load for use, and the other part is stored in the energy storage battery. When the electrical energy provided by the solar panel is insufficient, the energy storage battery can release the stored electrical energy in time to supply the load for use. The photovoltaic system is efficient and economical. The photovoltaic system can convert solar energy into electrical energy, and can achieve efficient use of energy, thereby improving the utilization rate of energy. The operating cost of the photovoltaic system is low. In addition, the photovoltaic system provided in this embodiment may also include an inverter and a controller, which is determined according to actual usage requirements and is not limited here.

[0039] The structure of the integrated energy storage AC unit 1000 is described in detail below.

[0040] Figure 1 A schematic diagram of a first-viewing angle of an energy storage AC integrated machine 1000 provided in an embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram from another perspective; Figure 3 is a schematic diagram of the AA section. Figure 1 , Figure 2 and Figure 3 As shown, the energy storage AC integrated machine 1000 provided in this embodiment includes a container 100, an oil pool 200 and a partition 300. The oil pool 200 is located in the container 100 and is arranged at the bottom of the container 100. The entire bottom of the container 100 can be provided with the oil pool 200, or part of the bottom of the container 100 can be provided as the oil pool 200, which is determined according to the specific usage and is not limited here. The partition 300 is arranged in the oil pool 200, and the partition 300 is used to separate the inner cavity of the oil pool 200 into an upper chamber 210 and a lower chamber 220. The partition 300 is provided with at least one through hole 310, and the through hole 310 is used to connect the upper chamber 210 and the lower chamber 220. By integrating the oil pool 200 with the container 100, that is, the oil pool 200 is included in the container 100, it is possible to avoid the separate construction of the oil pool 200 on site, which can reduce costs, reduce construction difficulty, and is not easy to cause soil pollution. In addition, by designing the oil pool 200 as two chambers separated into upper and lower parts, the oil collecting space can be increased, thereby achieving a larger amount of oil collection.

[0041] Specifically, see Figure 1 and Figure 2 , and combined with Figure 3 and Figure 6 , Figure 6The schematic diagram of the DD section provided in the embodiment of the present invention, the bottom of the container 100 in this embodiment is provided with a partition wall 700, the number of the partition walls 700 is two, the two partition walls 700 are arranged at intervals, and the two partition walls 700 and the bottom of the container 100 are enclosed together to form an oil pool 200. In addition to isolating the space in the oil pool 200 from other installation spaces of the container 100, the partition wall 700 can also serve as an oil baffle to reduce the fluctuation of the oil and prevent the oil from splashing and overflowing. In order to further reduce the fluctuation, the partition wall 700 in this embodiment is arranged in a wave shape. Of course, an oil baffle can also be arranged on the side of the partition wall 700 close to the chamber of the oil pool 200 to enhance the anti-leakage performance of the partition wall 700. In addition, an oil tank with an opening at one end can also be arranged at the bottom of the container 100 to form the oil pool 200, and a partition 300 is arranged in the oil pool 200; the opening is upward and arranged below the transformer 800 to receive the oil leakage in the event of an accident of the transformer 800.

[0042] To prevent branches, dust, or small animals from blocking the through hole 310, refer to Figure 2 , the energy storage AC all-in-one machine 1000 in this embodiment also includes a filter element 400, and the filter element 400 is arranged in the through hole 310. Specifically, the filter element 400 in this embodiment is a floor drain. The main set of the floor drain includes a bottom groove, a filter screen and an anti-odor component. The bottom groove is provided with a liquid discharge port, and the bottom groove can temporarily store liquid when the floor drain is draining oil. The filter screen is installed in the bottom groove to isolate debris such as branches and sand. The anti-odor component is connected to the filter screen to play an insect-proof, odor-proof and anti-overflow effect. It is generally a T-shaped metal anti-odor component. Of course, it can also be an anti-odor component of other shapes and materials, which is not limited here. Of course, the filter element 400 can also be a filter screen or other structures, which is not limited here.

[0043] Because the waste oil in the oil pool 200 needs to be discharged, please refer to Figure 2 , and combined with Figure 1The oil pool 200 in this embodiment is provided with at least one oil drain hole 230, which is used to connect the lower chamber 220 with the external environment, and is used to connect the waste oil in the oil pool 200 with other processing devices. In order to facilitate the next step of processing of the waste oil, the oil drain hole 230 in this embodiment includes a first oil drain hole 231 and a second oil drain hole 232, and an oil drain valve 240 is provided at the first oil drain hole 231, and an oil-water separator 250 is provided at the second oil drain hole 232. The main function of the oil-water separator 250 is to separate oil and water to prevent the oil and water from mixing together. In detail, the number of the first oil drain hole 231 and the second oil drain hole 232 are both two, and the two first oil drain holes 231 are respectively provided on the opposite sides of the oil pool 200, and the second oil drain hole 232 is also provided on the opposite sides of the oil pool 200. Of course, the number of the first oil drain hole 231 and the second oil drain hole 232 can also be one, three, four or more, depending on actual usage and cost requirements, and is not limited here.

[0044] In order to enhance the overall strength of the oil pool 200 and to reduce the number of oil-water separation devices configured to save costs, please refer to Figure 2 , and combined with Figure 4 , Figure 4 It is a schematic diagram of the BB section provided in the embodiment of the present invention; the energy storage AC integrated machine 1000 in this embodiment also includes a plurality of reinforcing ribs 500, and a plurality of reinforcing ribs 500 are also arranged in the upper chamber 210, and the plurality of reinforcing ribs 500 are used to separate the upper chamber 210 into a plurality of small chambers; each reinforcing rib 500 is provided with at least one notch 510 so that the plurality of small chambers are interconnected. That is, the notch 510 on each reinforcing rib 500 can connect two adjacent small chambers. By adopting this structural design similar to a communicating vessel, the number of configured oil-water separators 250 can be reduced, saving costs. The plurality of reinforcing ribs 500 in this embodiment are crisscrossed, and of course, the reinforcing ribs 500 can also be arranged at an angle, etc., which is not limited here.

[0045] Please continue reading Figure 2 , and combined with Figure 5 , Figure 5 Schematic diagram of CC section provided in an embodiment of the present invention, a wire groove 520 is provided on the reinforcing rib 500 in this embodiment, and the wire groove 520 is used to place the cable tube 600. The wire groove 520 and the notch 510 are staggered and do not affect each other.

[0046] Figure 7 FIG. 1 is a schematic diagram of an energy storage AC integrated machine 1000 including a transformer 800 provided in an embodiment of the present invention. Figure 7, the energy storage AC integrated machine 1000 in this embodiment also includes a transformer 800, and the oil pool 200 is arranged below the transformer 800. Because the transformer 800 will discharge waste oil in an accident state, which may pollute the environment, the oil pool 200 in this embodiment is arranged below the equipment such as the transformer 800 to receive the waste oil discharged by the transformer 800 in an accident state. Being arranged below the transformer 800, the transformer 800 can also shield the oil pool 200 to avoid the possibility of blockage. In addition, in order to improve efficiency and ensure safety, the length of the oil pool 200 in this embodiment is greater than or equal to the length of the transformer 800, so as to completely wrap the transformer 800 and prevent oil leakage. Of course, the length of the oil pool 200 can also be less than the length of the transformer 800, as long as it can completely receive the waste oil of the transformer 800 in the accident state.

[0047] Of course, the energy storage AC integrated machine 1000 may also include structures such as an energy storage battery box to achieve multiple functions, which is not limited here and is determined based on actual conditions.

[0048] In summary, the energy storage AC integrated machine 1000 includes a container 100, an oil pool 200 and a partition 300. The oil pool 200 is located in the container 100 and is arranged at the bottom of the container 100. The partition 300 is arranged in the oil pool 200. The partition 300 is used to separate the inner cavity of the oil pool 200 into an upper chamber 210 and a lower chamber 220. The partition 300 is provided with at least one through hole 310, and the through hole 310 is used to connect the upper chamber 210 and the lower chamber 220. By integrating the oil pool 200 with the container 100, that is, the oil pool 200 is included in the container 100, it is possible to avoid the separate construction of the oil pool 200 on site, which can reduce costs, reduce construction difficulty, and is not easy to cause soil pollution. In addition, by designing the oil pool 200 as two chambers separated by upper and lower parts, the oil collection space can be increased to achieve a larger amount of oil collection.

[0049] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. An energy storage AC integrated machine, characterized in that: include: Container (100); An oil pool (200), the oil pool (200) is located in the container (100) and is arranged at the bottom of the container (100); A partition (300), wherein the partition (300) is arranged on the oil pool (200), and the partition (300) is used to separate the inner cavity of the oil pool (200) into an upper chamber (210) and a lower chamber (220), and the partition (300) is provided with at least one through hole (310), and the through hole (310) is used to connect the upper chamber (210) and the lower chamber (220).

2. The energy storage AC integrated machine according to claim 1, characterized in that: The energy storage AC integrated machine (1000) further comprises a filter element (400), wherein the filter element (400) is arranged in the through hole (310).

3. The energy storage AC integrated machine according to claim 2, characterized in that: The filter element (400) is a floor drain.

4. The energy storage AC integrated machine according to claim 1, characterized in that: The energy storage AC integrated machine (1000) further comprises a plurality of reinforcing ribs (500), and a plurality of reinforcing ribs (500) are further arranged in the upper chamber (210), wherein the plurality of reinforcing ribs (500) are used to separate the upper chamber (210) into a plurality of small chambers; and at least one notch (510) is provided on each of the reinforcing ribs (500) so that the plurality of small chambers are interconnected.

5. The energy storage AC integrated machine according to claim 4, characterized in that: The reinforcing rib (500) is provided with a wire groove (520), and the wire groove (520) is used for placing a cable tube (600).

6. The energy storage AC integrated machine according to any one of claims 1 to 5, characterized in that: A partition wall (700) is arranged at the bottom of the container (100), the number of the partition walls (700) is two, the two partition walls (700) are arranged at intervals, and the two partition walls (700) and the bottom of the container (100) together enclose the oil pool (200).

7. The energy storage AC integrated machine according to any one of claims 1 to 5, characterized in that: The energy storage AC integrated machine (1000) further comprises a transformer (800), and the oil pool (200) is arranged below the transformer (800).

8. The energy storage AC integrated machine according to any one of claims 1 to 5, characterized in that: The oil pool (200) is provided with at least one oil drain hole (230), and the oil drain hole (230) is used to connect the lower chamber (220) and the external environment.

9. The energy storage AC integrated machine according to claim 8, characterized in that: The oil drain hole (230) comprises a first oil drain hole (231) and a second oil drain hole (232); an oil drain valve (240) is provided at the first oil drain hole (231), and an oil-water separator (250) is provided at the second oil drain hole (232).

10. A photovoltaic system, characterized in that: It comprises a photovoltaic component and the energy storage AC integrated machine (1000) according to any one of claims 1 to 9, wherein the photovoltaic component is connected to the energy storage AC integrated machine (1000).

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