Liquid flow energy storage container module

Abstract

A liquid flow energy storage container module comprises a first box body module, a positive electrode electrolyte storage device, a second box body module, a liquid flow battery device and an electric power transmission system. The second box body module is stacked above the first box body module. The anode electrolyte storage device and the cathode electrolyte storage device are arranged in the first box body module. The flow battery device is arranged in the second box body module, the positive electrode of the flow battery device is communicated with the positive electrode electrolyte storage device through a positive electrode pipeline, and the negative electrode of the flow battery device is communicated with the negative electrode electrolyte storage device through a negative electrode pipeline. The power transmission system includes a quick-connect module and a cable. The two quick connection modules are arranged at the two ends of the second box body module respectively and used for being connected with a power grid. And the cable is connected with the quick connection module and the flow battery device. According to the liquid flow energy storage container module, the overall energy storage capacity is high, the liquid flow energy storage container module is suitable for box-type combined transportation, the liquid flow energy storage container module can be rapidly connected with an external power grid, and large-scale grid-connected assembly of the liquid flow energy storage container module is facilitated.

Description

Technical Field

[0001] The present application relates to the field of container technology, and in particular to a liquid flow energy storage container module. Background Art

[0002] With the development of new energy technologies, the demand for energy storage is getting higher and higher. Currently, most energy storage projects on the market use lithium battery energy storage systems, and container-type lithium battery energy storage systems are also designed for multimodal transport of lithium battery energy storage systems.

[0003] However, with the rapid development of lithium battery energy storage projects, the safety and environmental protection issues have gradually emerged. For this reason, liquid flow energy storage batteries came into being, which have many advantages such as safety, environmental protection and low cost.

[0004] However, although container-type liquid flow energy storage batteries are currently available, existing products mostly have many problems such as low energy storage capacity, complex grid connection, and difficulty in equipment transportation and installation.

[0005] Therefore, a liquid flow energy storage container module is needed to at least partially solve the above problems. Summary of the invention

[0006] A series of simplified concepts are introduced in the Summary of the Invention section, which will be further described in detail in the Detailed Description of the Invention section. The Summary of the Invention section of this application does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0007] In order to at least partially solve the above problems, the first aspect of the present application provides a liquid flow energy storage container module, the liquid flow energy storage container module comprising:

[0008] A first box module;

[0009] A positive electrode electrolyte storage device is disposed in the first box module;

[0010] A negative electrode electrolyte storage device is disposed in the first box module;

[0011] A second box module, wherein the second box module is stacked on top of the first box module;

[0012] A liquid flow battery device is arranged in the second box module, wherein the positive electrode of the liquid flow battery device is connected to the positive electrode electrolyte storage device through a positive electrode pipeline, and the negative electrode of the liquid flow battery device is connected to the negative electrode electrolyte storage device through a negative electrode pipeline;

[0013] A power transmission system, the power transmission system comprising:

[0014] A quick-connect module, two of which are respectively arranged at the two ends of the second box module, and the quick-connect module is used to connect to the power grid, and

[0015] A cable is connected to the quick-connect module and the flow battery device.

[0016] According to the liquid flow energy storage container module of the present application, a single container is used to load the electrolyte storage device, so that the overall energy storage capacity is high, and the double-layer box design is also suitable for box-type intermodal transport, and a quick-connect module is arranged on the outside of the upper box, which can be quickly connected to the external power grid, thereby improving the adaptability of the product and facilitating large-scale grid-connected assembly of liquid flow energy storage container modules.

[0017] Optionally, the first box module includes a first corner piece, the second box module includes a second corner piece, and the liquid flow energy storage container module further includes a semi-automatic twist-lock device, and the semi-automatic twist-lock device is connected between the first corner piece and the second corner piece.

[0018] Optionally, the first box module includes a first top side beam;

[0019] The second box module comprises a second bottom side beam, and the second bottom side beam is located above the first top side beam;

[0020] The liquid flow energy storage container module further includes a side beam support, wherein the side beam support is between the first top side beam and the second bottom side beam.

[0021] Optionally, the first top side beam is provided with a positioning pin protruding upward, the side beam support member has a positioning hole, and the side beam support member is sleeved on the positioning pin.

[0022] Optionally, the first box module includes a first top frame, and the first top frame is provided with a first communication port;

[0023] The second box module includes a second bottom frame, the second bottom frame is located above the first top frame, the second top frame is provided with a second communication port, and the position of the second communication port corresponds to the position of the first communication port along the height direction of the liquid flow energy storage container module;

[0024] The liquid flow energy storage container module further includes a sealing member connected between a periphery of the first communication port and a periphery of the second communication port to form a channel.

[0025] Optionally, a first flange portion is disposed around the upper side of the first communication port, a second flange portion is disposed around the bottom side of the second communication port, and a projection of the second flange portion along the height direction is located within the range of the projection of the first flange portion;

[0026] Wherein, the sealing component is located on the inner side of the first flange part and on the outer side of the second flange part.

[0027] Optionally, the liquid flow energy storage container module further includes:

[0028] A positive electrode electrolyte conveying device is provided in the first box module, the positive electrode electrolyte conveying device is in communication with the positive electrode pipeline, and is used to convey the positive electrode electrolyte in the positive electrode pipeline;

[0029] A negative electrode electrolyte transport device is provided in the first box module, and the negative electrode electrolyte transport device is connected to the negative electrode pipeline and is used to transport the negative electrode electrolyte in the negative electrode pipeline.

[0030] Optionally, the power transmission system also includes a transformer, the cable is connected to the transformer, the second box module includes a second top frame, and there is an overhead layer between the top of the liquid flow battery device and the transformer and the second top frame, and the overhead layer is used to set the positive electrode pipeline and the negative electrode pipeline.

[0031] Optionally, the liquid flow energy storage container module has two channels, the two channels are arranged adjacent to each other, and the transformer is at least partially located between the two channels.

[0032] Optionally, both ends of the first box module are provided with box doors; and / or

[0033] The side wall of the first box module and / or the side wall of the second box module are provided with waterproof ventilation shutters.

[0034] Optionally, the side wall of the first box module and / or the side wall of the second box module is provided with an inspection door, and the side wall of the first box module is provided with an inspection port; and / or

[0035] The side wall of the second box module is provided with a plurality of equipment doors.

[0036] Optionally, the liquid flow energy storage container module is constructed as an all-iron liquid flow energy storage container module. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The following drawings of the present application are used as a part of the present application for understanding the present application. The drawings show the embodiments of the present application and their descriptions, which are used to explain the principle of the present application.

[0038] In the attached figure:

[0039] Figure 1 It is a cross-sectional schematic diagram of a liquid flow energy storage container module according to an embodiment of the present application;

[0040] Figure 2 It is a three-dimensional schematic diagram of a liquid flow energy storage container module according to an embodiment of the present application;

[0041] Figure 3 The liquid flow energy storage container module according to one embodiment of the present application is relative to Figure 2 A three-dimensional schematic diagram from the other side perspective;

[0042] Figure 4 for Figure 1 Schematic diagram of the connection between the upper and lower corner fittings at B in the middle;

[0043] Figure 5 for Figure 1 Schematic diagram of the upper and lower passages at A in the middle; and

[0044] Figure 6 for Figure 2 Figure C shows a schematic diagram of the upper and lower side beam supports.

[0045] Description of reference numerals:

[0046] 100: Liquid flow energy storage container module 101: Semi-automatic twist lock device

[0047] 102: Side beam support 103: Positioning hole

[0048] 104: Seal 105: Door

[0049] 106: Inspection door 107: Inspection port

[0050] 108: Waterproof ventilation shutters 109: Passage

[0051] 110: first box module 111: first top frame

[0052] 112: First base frame 113: First corner piece

[0053] 114: first communication port 115: first flange portion

[0054] 116: first top side beam 117: positioning pin

[0055] 120: Second box module 121: Second top frame

[0056] 122: Second base frame 123: Second corner piece

[0057] 124: Second communication port 125: Second flange portion

[0058] 126: overhead layer 127: second bottom side beam

[0059] 128: Equipment door 130: Flow battery device

[0060] 140: Positive electrode electrolyte storage device 141: Positive electrode pipeline

[0061] 142: Positive electrode electrolyte transport device 150: Negative electrode electrolyte storage device

[0062] 151: Negative electrode pipeline 152: Negative electrode electrolyte delivery device

[0063] 160: Quick-connect module 161: Cable

[0064] 162: Transformer DETAILED DESCRIPTION

[0065] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present application. However, it is apparent to those skilled in the art that the present application can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present application, some technical features well known in the art are not described.

[0066] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of the features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0067] Ordinal numbers such as "first" and "second" cited in this application are merely identifiers and do not have any other meaning, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of a "second component", and the term "second component" itself does not imply the existence of a "first component". It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inner", "outer" and similar expressions used in this document are for illustrative purposes only and are not limiting.

[0068] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings.

[0069] refer to Figure 1 , Figure 2 and Figure 3 The present application provides a liquid flow energy storage container module 100, which includes a first box module 110, a positive electrolyte storage device 140, a second box module 120, a liquid flow battery device 130 and a power transmission system.

[0070] The second box module 120 is stacked on top of the first box module 110. The positive electrolyte storage device 140 and the negative electrolyte storage device 150 are arranged in the first box module 110. The flow battery device 130 is arranged in the second box module 120, and the positive electrode of the flow battery device 130 is connected to the positive electrolyte storage device 140 through the positive electrode pipeline 141, and the negative electrode of the flow battery device 130 is connected to the negative electrolyte storage device 150 through the negative electrode pipeline 151. The power transmission system includes a quick-connect module 160 and a cable 161. Two quick-connect modules 160 are respectively arranged at the two ends of the second box module 120, and the quick-connect modules 160 are used to connect to the power grid. The cable 161 is connected to the quick-connect module 160 and the flow battery device 130. The flow battery device 130 has a diaphragm, for example, it can be a proton exchange membrane or an ion exchange membrane.

[0071] According to the liquid flow energy storage container module 100 of the present application, a single container is used to load the electrolyte storage device, so that the overall energy storage capacity is high, and the double-layer box design is also suitable for box-type intermodal transport, and a quick-connect module 160 is arranged on the outside of the upper box, which can be quickly connected to the external power grid, thereby improving the adaptability of the product and facilitating large-scale grid-connected assembly of the liquid flow energy storage container module 100.

[0072] The liquid flow energy storage container module 100 also includes a positive electrolyte delivery device 142 and a negative electrolyte delivery device 152. The positive electrolyte delivery device 142 is disposed in the first box module 110, is communicated with the positive electrode pipeline 141, and is used to deliver the positive electrolyte in the positive electrode pipeline 141. The negative electrolyte delivery device 152 can also be disposed in the first box module 110, is communicated with the negative electrode pipeline 151, and is used to deliver the positive electrolyte in the negative electrode pipeline 151.

[0073] refer to Figure 2 and Figure 3 In order to realize that the positive electrode electrolyte storage device 140 and the negative electrode electrolyte storage device 150 can be installed at the same time, it is preferred to provide box doors 105 at both ends of the first box module 110, and the box doors 105 are designed to be open.

[0074] Inspection doors 106 are provided on the side walls of the first box module 110 and the second box module 120 to facilitate personnel to enter and fix the positive electrolyte storage device 140 and the negative electrolyte storage device 150, lay pipelines and cables, etc. The side wall of the first box module 110 is provided with an inspection port 107, which is used to inspect the internal pipelines when the liquid flow energy storage container module 100 is in working state.

[0075] The higher the power of the liquid flow battery device 130 in the second box module 120, the faster the charging and discharging speed. For example, a large liquid flow battery device 130 can be used, or a plurality of small and medium-sized liquid flow battery devices 130 can be used to form a battery pack. To this end, a plurality of equipment doors 128 can be provided on the side wall of the second box module 120 to facilitate the entry of the liquid flow battery device 130.

[0076] In addition, since the liquid flow energy storage container module 100 generates a lot of heat in operation, the internal space needs to be ventilated. Therefore, the side walls of the first box module 110 and the side walls of the second box module 120 are provided with a plurality of waterproof ventilation shutters 108 .

[0077] The first box module 110 includes a first bottom frame 112, a first top frame 111, and first corner pieces 113 arranged at the four corners of the first bottom frame 112 and the first top frame 111. The second box module 120 includes a second bottom frame 122, a second top frame 121, and second corner pieces 123 arranged at the four corners of the second bottom frame 122 and the second top frame 121. Among them, the positive electrode electrolyte delivery device 142 and the negative electrode electrolyte delivery device 152 are arranged on the first bottom frame 112, and the liquid flow battery device 130 is arranged on the second bottom frame 122. As an optional embodiment, a leakproof layer can be provided on the surface of the first bottom frame 112, preferably an acid-resistant leakproof layer, to prevent the accidental leakage of the electrolyte from corroding the box structure.

[0078] When the first box module 110 and the second box module 120 are stacked, the first top frame 111 of the first box module 110 is connected to the second bottom frame 122 of the second box module 120. The first top frame 111 includes a first top side beam 116, and the second bottom frame 122 includes a second bottom side beam 127. The first top side beam 116 corresponds to the second bottom side beam 127 in the vertical direction. That is, the second bottom side beam 127 is located above the first top side beam 116. And the four corner pieces of the first top frame 111 are butted with the four corner pieces of the second bottom frame 122.

[0079] As a preferred embodiment, refer to Figure 4 The liquid energy storage container module 100 further includes a semi-automatic twist lock device 101, which is connected between the first corner piece 113 and the second corner piece 123. Thus, the first box module 110 and the second box module 120 can be quickly locked and installed.

[0080] When the first box module 110 and the second box module 120 are stacked, the second bottom side beam 127 of the second box module 120 may be bent due to excessive weight of the load. Figure 2 , Figure 3 and Figure 6It is preferred to set the side beam support 102 between the first box module 110 and the second box module 120, or in other words, the side beam support 102 is between the first top side beam 116 and the second bottom side beam 127, so as to transfer the load of the second box module 120 to the first box module 110, and then to the foundation, forming a complete load transfer link. In order to facilitate the installation of the side beam support 102, the first top side beam 116 is provided with a positioning pin 117 protruding upward, and the side beam support 102 has a positioning hole 103. After the first box module 110 and the second box module 120 are stacked, the side beam support 102 is sleeved on the positioning pin 117.

[0081] refer to Figure 1 The power transmission system also includes a transformer 162, a cable 161 connected to the transformer 162, and an overhead layer 126 is provided between the top of the flow battery device 130 and the transformer 162 and the second top frame 121, and the overhead layer 126 is used to set the positive electrode pipeline 141 and the negative electrode pipeline 151, as well as the above-mentioned cable 161.

[0082] refer to Figure 1 and Figure 5 In order to facilitate wiring and piping between the first box module 110 and the second box module 120, it is necessary to connect the first box module 110 with the second box module 120. For example, a first connecting port 114 may be opened in the first top frame 111, and a second connecting port 124 may be opened in the second top frame 121. The position of the second connecting port 124 corresponds to the position of the first connecting port 114 along the height direction of the liquid flow energy storage container module 100. The liquid flow energy storage container module 100 also includes a seal 104, which is connected between the periphery of the first connecting port 114 and the periphery of the second connecting port 124 to form a channel 109. Optionally, the liquid flow energy storage container module 100 has two channels 109, which can be used to arrange the positive electrode pipeline 141 and the negative electrode pipeline 151, and the corresponding cables 161, respectively.

[0083] It is worth mentioning that the two channels 109 are preferably arranged adjacent to each other, and the transformer 162 is at least partially located between the two channels 109. In this way, the wiring operation is more convenient, saving material and labor costs.

[0084] As a preferred embodiment, a first flange portion 115 is provided around the upper side of the first communication port 114, and a second flange portion 125 is provided around the bottom side of the second communication port 124, thereby achieving a certain water blocking function. Preferably, the projection of the second flange portion 125 along the height direction is located within the range of the projection of the first flange portion 115 along the height direction. In addition, the sealing member 104 is located on the inner side of the first flange portion 115 and on the outer side of the second flange portion 125.

[0085] As an implementation form, the liquid flow energy storage container module 100 is constructed as an all-iron liquid flow energy storage container module.

[0086] The processes and steps described in all the above preferred embodiments are only examples. Unless adverse effects occur, various processing operations can be performed in a sequence different from the sequence of the above processes. The sequence of steps in the above processes can also be increased, merged or deleted according to actual needs.

[0087] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present application. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present application. The features described herein in one embodiment may be applied to another embodiment individually or in combination with other features, unless the feature is not applicable or otherwise specified in the other embodiment.

[0088] The present application has been illustrated through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and explanation, and the present application is not limited to the above-mentioned embodiments. According to the teachings of the present application, more variations and modifications can be made, and these variations and modifications all fall within the scope of protection claimed by the present application.

Claims

1. A liquid flow energy storage container module, characterized in that: The liquid flow energy storage container module comprises: A first box module; A positive electrode electrolyte storage device is disposed in the first box module; A negative electrode electrolyte storage device is disposed in the first box module; A second box module, wherein the second box module is stacked on top of the first box module; A liquid flow battery device is arranged in the second box module, wherein the positive electrode of the liquid flow battery device is connected to the positive electrode electrolyte storage device through a positive electrode pipeline, and the negative electrode of the liquid flow battery device is connected to the negative electrode electrolyte storage device through a negative electrode pipeline; A power transmission system, the power transmission system comprising: A quick-connect module, two of which are respectively arranged at the two ends of the second box module, and the quick-connect module is used to connect to the power grid, and A cable is connected to the quick-connect module and the flow battery device.

2. The liquid flow energy storage container module according to claim 1, characterized in that: The first box module includes a first corner piece, the second box module includes a second corner piece, and the liquid flow energy storage container module also includes a semi-automatic twist-lock device, which is connected between the first corner piece and the second corner piece.

3. The liquid flow energy storage container module according to claim 1, characterized in that: The first box module includes a first top side beam; The second box module comprises a second bottom side beam, and the second bottom side beam is located above the first top side beam; The liquid flow energy storage container module further includes a side beam support, wherein the side beam support is between the first top side beam and the second bottom side beam.

4. The liquid flow energy storage container module according to claim 3, characterized in that: The first top side beam is provided with a positioning pin protruding upward, the side beam support member has a positioning hole, and the side beam support member is sleeved on the positioning pin.

5. The liquid flow energy storage container module according to claim 1, characterized in that: The first box module includes a first top frame, and the first top frame is provided with a first communication port; The second box module includes a second bottom frame, the second bottom frame is located above the first top frame, the second top frame is provided with a second communication port, and the position of the second communication port corresponds to the position of the first communication port along the height direction of the liquid flow energy storage container module; The liquid flow energy storage container module further includes a sealing member connected between a periphery of the first communication port and a periphery of the second communication port to form a channel.

6. The liquid flow energy storage container module according to claim 5, characterized in that: A first flange portion is disposed around the upper side of the first communication port, a second flange portion is disposed around the bottom side of the second communication port, and a projection of the second flange portion along the height direction is located within the projection range of the first flange portion; Wherein, the sealing component is located on the inner side of the first flange part and on the outer side of the second flange part.

7. The liquid flow energy storage container module according to claim 1, characterized in that: The liquid flow energy storage container module also includes: A positive electrode electrolyte conveying device is provided in the first box module, the positive electrode electrolyte conveying device is in communication with the positive electrode pipeline, and is used to convey the positive electrode electrolyte in the positive electrode pipeline; A negative electrode electrolyte transport device is provided in the first box module, and the negative electrode electrolyte transport device is connected to the negative electrode pipeline and is used to transport the negative electrode electrolyte in the negative electrode pipeline.

8. The liquid flow energy storage container module according to claim 5, characterized in that: The power transmission system also includes a transformer, the cable is connected to the transformer, the second box module includes a second top frame, and there is an overhead layer between the top of the liquid flow battery device and the transformer and the second top frame, and the overhead layer is used to set the positive electrode pipeline and the negative electrode pipeline.

9. The liquid flow energy storage container module according to claim 8, characterized in that: The liquid flow energy storage container module has two channels, the two channels are arranged adjacent to each other, and the transformer is at least partially located between the two channels.

10. The liquid flow energy storage container module according to any one of claims 1 to 9, characterized in that: Both ends of the first box module are provided with box doors; and / or The side wall of the first box module and / or the side wall of the second box module are provided with waterproof ventilation shutters.

11. The liquid flow energy storage container module according to any one of claims 1 to 9, characterized in that: The side wall of the first box module and / or the side wall of the second box module is provided with an inspection door, and the side wall of the first box module is provided with an inspection opening; and / or The side wall of the second box module is provided with a plurality of equipment doors.

12. The liquid flow energy storage container module according to any one of claims 1 to 9, characterized in that: The liquid flow energy storage container module is constructed as an all-iron liquid flow energy storage container module.

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