Electrolyte reservoir

Abstract

The application provides an electrolyte storage tank, comprising: a tank cover, the tank cover comprising a cover main body and a plurality of connecting pieces, the cover main body comprising opposite first and second surfaces, and the cover main body comprising a plurality of connecting holes; the connecting pieces are located on the first surface, each connecting piece comprising a connecting pipeline, the connecting pipeline being in communication with the connecting hole, and the inner diameters of the connecting pipelines of each connecting piece can be the same or different; a plurality of matching pieces, the matching pieces being located on the side of the connecting pieces away from the first surface, each matching piece comprising a matching pipeline, the matching pipeline being in communication with the connecting pipeline, wherein the storage tank is adapted to inject and / or discharge a working medium through the matching pieces and the connecting pipelines; or the matching pieces are adapted to detect the internal working condition of the storage tank. The electrolyte storage tank provided by the application can significantly improve the work efficiency of replacing the tank cover of the storage tank, further reduce the construction difficulty and cost, and reduce the risk of cracking and liquid leakage of the storage tank.

Description

Technical Field

[0001] This application mainly relates to the field of flow battery energy storage, and in particular to an electrolyte storage tank. Background Technology

[0002] Flow batteries circulate electrolyte between the storage tank and the stack through a circulation system. As battery systems become larger, more complex, and more intelligent, the required functions of electrolyte storage tanks are no longer limited to storing liquid. Therefore, integrating more functions within a limited space has become an inevitable direction for the development of storage tanks.

[0003] To ensure the normal and stable operation of the vanadium redox flow battery system, the electrolyte storage tank (hereinafter referred to as the storage tank) is a sealed tank with acid and corrosion resistance and a certain strength. Currently, in addition to the electrolyte inlet and outlet, the storage tank needs to have more functional openings depending on the product's function. However, when additional functional openings are needed in the future, drilling and opening holes in the tank cover are required according to actual application needs, which is time-consuming. This method of modifying the tank cover according to application requirements places high demands on process control and strength control. Furthermore, during drilling and opening, additional reinforcing ribs need to be added to the edges of the newly drilled holes; otherwise, problems such as interface cracking and breakage can easily occur, leading to leakage at the interface or even insufficient strength of the entire tank. Moreover, once the connection joints on the storage tank are welded, there is no possibility of modifying their position or diameter, resulting in poor substitutability.

[0004] In addition, during the normal operation of a flow battery, if the electrolyte comes into contact with air, a redox reaction will occur, causing changes in the ion valence state and resulting in an imbalance of vanadium ion valence state in the positive and negative electrode electrolytes. Therefore, if the equipment and pipelines connected to the storage tank need to be repaired or replaced, the conventional practice is to first completely discharge the stored charge in the battery system, or to mix and neutralize the positive and negative electrode electrolytes before disconnecting the various pipelines and equipment connected to the storage tank. This process generates a lot of heat and usually takes a very long time, requiring the cooling system and circulation pump to be kept running throughout, thus wasting a lot of energy and time. Utility Model Content

[0005] The technical problem to be solved by this application is to provide an electrolyte storage tank that can significantly improve the work efficiency of replacing the tank cover, further reduce the construction difficulty and cost, and reduce the risk of cracking and leakage of the storage tank.

[0006] To address the aforementioned technical problems, this application provides an electrolyte storage tank, comprising: a tank cover, the tank cover including a cover body and multiple connectors, the cover body including opposing first and second surfaces, and multiple connecting holes; the connectors located on the first surface, each connector including a connecting pipe communicating with the connecting holes, the inner diameter of the connecting pipe of each connector being the same or different; and multiple mating parts located on the side of the connector away from the first surface, each mating part including a mating pipe communicating with the connecting pipe, wherein the storage tank is adapted to inject and / or discharge working fluid through the mating parts and the connecting pipes; or, the mating parts are adapted to detect the internal working condition of the storage tank.

[0007] Optionally, the fittings include nitrogen filling fittings, hydrogen venting fittings, temperature sensing fittings, liquid injection fittings, gas phase equilibrium fittings, and / or liquid level sensing fittings.

[0008] Optionally, the connector includes an upper flange located on the outer circumferential surface of the connecting pipe, the upper flange including a plurality of upper flange fastening holes; the mating component includes a mating flange located on the outer circumferential surface of the mating pipe, the mating flange including a plurality of mating fastening holes spatially corresponding to the upper flange fastening holes.

[0009] Optionally, the electrolyte storage tank further includes flange fasteners, which pass sequentially through the mating fastening hole and the upper flange fastening hole to fix the mating part and the connecting part.

[0010] Optionally, the upper flange is located at one end of the connecting pipe away from the first surface of the tank cover body, and there is a first distance between the upper flange and the first surface, the first distance being greater than or equal to 38 mm.

[0011] Optionally, the connector further includes a lower flange located on the outer circumferential surface of the connecting pipe, with one side of the lower flange in close contact with the first surface.

[0012] Optionally, the upper flange and the lower flange include a plurality of side wings, one end of each side wing being fixedly connected to the upper flange and the other end of each side wing being fixedly connected to the lower flange.

[0013] Optionally, the electrolyte storage tank further includes a tank body, the tank body including a lid hole that mates with the tank lid, the edge of the lid hole including a plurality of lid fastening holes, the lid body including a lid groove and a lid side cover surrounding the groove, a plurality of the connecting members being located within the lid groove, the lid side cover including a plurality of side cover fastening holes, the side cover fastening holes corresponding one-to-one with the lid fastening holes in space.

[0014] Optionally, the electrolyte storage tank also includes a tank cover fastener, which passes sequentially through the side cover fastening hole and the tank cover fastening hole to fix the tank cover to the tank body.

[0015] Optionally, the electrolyte storage tank further includes a plurality of elastic plates located on the edge of each of the connection holes near the second surface. The elastic plates are adapted to seal the connection holes, to open when the mating member injects and / or discharges working fluid into the storage tank, and to open when the mating member is adapted to detect the internal operating conditions of the storage tank.

[0016] Optionally, when the connector is not engaged with the mating member, adjacent elastic pieces are pressed against each other to seal the connection hole; when the connector is engaged with the mating member, at least some of the elastic pieces are not pressed against adjacent elastic pieces.

[0017] Compared to existing technologies, this application pre-installs multiple connectors on the electrolyte storage tank lid, anticipating multiple functional openings the storage tank needs to connect to. The inner diameter of the connecting pipes for at least some of the connectors is pre-set according to the connection structure of the mating parts for different functional openings. This allows the storage tank lid to meet the connection requirements of different external functional parts when a new functional opening is needed. Furthermore, the elastic sheet can seal the connection hole when it does not mate with the mating part, preventing leakage or isolating air. The electrolyte storage tank provided by this application eliminates the need for drilling or opening new holes in the existing lid when a new functional opening is needed, and also eliminates the need to completely discharge the stored charge in the battery system. This significantly improves the efficiency of replacing the storage tank lid, further reduces construction difficulty and cost, and lowers the risk of cracking and leakage in the storage tank. Attached Figure Description

[0018] The accompanying drawings are included to provide a further understanding of this application; they are incorporated into and constitute a part of this application. The drawings illustrate embodiments of this application and, together with this specification, serve to explain the principles of this application. In the drawings:

[0019] Figure 1This is a front structural diagram of the tank cover of an electrolyte storage tank according to one embodiment of this application;

[0020] Figure 2 This is a schematic diagram of the back structure of the tank cover of an electrolyte storage tank according to one embodiment of this application;

[0021] Figure 3 This is a cross-sectional schematic diagram of the connector of the tank cover of an electrolyte storage tank according to one embodiment of this application;

[0022] Figure 4 This is a schematic diagram of the overall structure of an electrolyte storage tank according to an embodiment of this application;

[0023] Figure 5 This is a partial structural diagram of an electrolyte storage tank according to one embodiment of this application. Detailed Implementation

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this application. For those skilled in the art, these drawings can be applied to other similar scenarios without creative effort. Unless obvious from the context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0025] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" are not specifically singular and may include plural forms. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0026] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0027] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0028] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0029] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. In addition, although the terminology used in this application is selected from commonly known and used terms, some terms mentioned in this application's specification may have been chosen by the applicant according to his or her judgment, and their detailed meanings are explained in the relevant sections of this description. Moreover, this application should be understood not only through the actual terms used, but also through the meaning implied by each term.

[0030] This application refers to Figures 1-5 An electrolyte storage tank 10 (hereinafter referred to as "storage tank 10") is proposed, wherein, Figure 1 A schematic diagram of the front structure of the liquid storage tank 10's tank cover 11 is shown (here, "front" refers only to the state when the tank cover 11 is placed on the liquid storage tank 10, such as...). Figure 1 The tank cover 11 shown is the front. Figure 2A schematic diagram of the rear structure of the liquid storage tank cover 11 is shown (here, "rear" refers only to the situation when the liquid storage tank cover 11 is placed on the liquid storage tank 10, such as...). Figure 2 The tank cover 11 shown is the back side. Figure 3 A cross-sectional schematic diagram of the connector 22 on the tank cover 11 of the liquid storage tank is shown. Figure 4 A schematic diagram of the overall structure of the storage tank 10 is shown. Figure 5 A partial structural schematic diagram of the liquid storage tank 10 is shown.

[0031] First refer to Figure 1 , Figure 2 and Figure 5 The liquid storage tank 10 mainly includes a tank cover 11 and mating parts 12. The tank cover 11 includes a cover body 21 and multiple connecting parts 22. The cover body 21 includes opposing first surfaces S1 (in this embodiment, i.e., as shown in the figure). Figure 1 The front surface shown) and the second surface S2 (in this embodiment, i.e., as shown) Figure 2 (As shown on the back side). Specifically, the can lid body 21 includes a plurality of connecting holes 23; connectors 22 are located on the first surface S1, each connector 22 including a connecting pipe 24 communicating with the connecting hole 23, and the inner diameter of the connecting pipe 24 of each connector 22 may be the same or different. See more details. Figure 5 The storage tank 10 also includes a plurality of mating parts 12, which are located on the side of the connector 22 away from the first surface S1. Each mating part 12 includes a mating pipe 25, which is connected to the connecting pipe 24. The storage tank 10 is adapted to inject and / or discharge working fluid through the mating parts 12 and the connecting pipe 24, or the mating parts 12 are adapted to detect the internal working condition of the storage tank 10.

[0032] Furthermore, refer to Figure 1 and Figure 5 The tank lid 11 of the liquid storage tank includes six connectors 22, which can be matched with six different matching parts 12, such as nitrogen filling matching part 31, hydrogen venting matching part (not shown), temperature sensing matching part 32, liquid filling matching part 33, gas phase equilibrium matching part (not shown), and liquid level sensing matching part (not shown). In other embodiments of this application, only one or more of the above-mentioned matching parts 12 may be selected according to the actual situation, or further expansion may be made. This application does not impose any limitations on this.

[0033] For example, the connecting component in the tank cover 11 of the liquid storage tank proposed in this application can be a connecting flange. The specifications of the connecting flange can refer to the national standard parameters and can be arbitrarily selected from the specifications of DN15 to DN150, such as DN15, DN25, DN50, DN100, DN125 and DN150. This application does not impose any restrictions on this.

[0034] This application pre-plans multiple connectors 22 on the tank cover 11 of the storage tank 10, that is, it pre-considers multiple functional openings that the storage tank needs to connect to externally, and pre-sets the inner diameter of the connecting pipes 24 of at least some of the connectors according to the connection structure of the mating parts 12 of different functional openings. For example, when the storage tank 10 needs to know the liquid level of the internal electrolyte, the connecting plug 26 set on the connector 221 can be opened (e.g., Figure 5 As shown, connector 221 has the same structure and function as connector 22 described above (the same reference numerals are used only to better illustrate the function of connector 221). This allows the liquid level sensing component to cooperate with connector 221, thereby sensing the liquid level information inside the storage tank 10. This enables the storage tank cover to meet the connection requirements of different external functional components in advance when a new functional opening is needed, without the need for additional drilling or opening of the original tank cover, and without the need to completely discharge the stored electricity in the battery system when a new external functional opening is needed. This significantly improves the work efficiency of replacing the storage tank cover 11, further reduces the construction difficulty and cost, and reduces the risk of cracking and leakage of the storage tank.

[0035] In this embodiment, reference is made more clearly. Figure 1 The connector 22 includes an upper flange 41, which is located on the outer circumferential surface of the connecting pipe 24. The upper flange 41 includes a plurality of upper flange fastening holes 42, further referring to... Figure 5 The mating component 12 includes a mating flange 43, which is located on the outer circumferential surface of the mating pipe 25. The mating flange 43 includes a plurality of mating fastening holes 45 that spatially correspond one-to-one with the fastening holes 42 of the upper flange. Furthermore, the liquid storage tank 10 also includes flange fasteners (not shown). In this embodiment, the flange fasteners include fastening bolts (not shown) and bolt fixing members (not shown). The fastening bolts pass sequentially through the mating fastening holes 45 and the upper flange fastening holes 42. The bolt fixing members are located on the side of the upper flange 41 near the first surface S1 and engage with the threads on the fastening bolts, thereby fixing the mating component 12 and the connecting component 22. The arrangement of the upper flange 41 and the mating flange 43 better fixes the connecting component 22 and the mating component 12, further improving the connection stability of the liquid storage tank 10 and ensuring the operational safety of the liquid storage tank 10.

[0036] Furthermore, if different mating parts 12 are to be replaced, the original mating parts 12 can be removed and replaced with new mating parts 12 with different functions. The replacement time is fast, which can significantly improve the work efficiency of replacing the tank cover of the liquid storage tank, further reducing the construction difficulty and cost, as well as reducing the risk of cracking and leakage of the liquid storage tank.

[0037] Further, clearer reference Figure 3The upper flange 41 is located at the end of the connecting pipe 24 away from the first surface S1 of the tank cover body 21. A first distance h1 exists between the upper flange 41 and the first surface S1, which is equal to 38 mm. In other embodiments of this application, the first distance h1 can be greater than 38 mm, and this application does not impose any limitation on this. In this embodiment, the fastening bolt typically extends approximately 23 mm beyond the upper flange fastening hole 42. Furthermore, approximately 15 mm of installation space needs to be reserved between the fastening bolt and the bolt fastener. Therefore, setting the first distance between the upper flange 41 and the first surface S1 to 38 mm provides sufficient space for the installation of the bolt fastener and the fastening bolt, further facilitating the fixing of the mating part 12 and the connecting part 22, and further improving the connection stability of the mating part 12 and the connecting part 22.

[0038] On the other hand, refer to Figure 1 and Figure 3 The connector 22 also includes a lower flange 46, which is located on the outer circumferential surface of the connecting pipe 24. One side of the lower flange 46 is in close contact with the first surface S1. Preferably, a plurality of side wings 47 are included between the upper flange 41 and the lower flange 46. One end of each side wing 47 is fixedly connected to the upper flange 41, and the other end of each side wing 47 is fixedly connected to the lower flange 46. The lower flange 46 and the side wings 47 further improve the overall connection stability of the connector 22. The side wings 47 provide stronger support to the upper flange 41 when the connector 22 and the mating part 12 are fixedly connected, further preventing the upper flange 41 from bending and deforming when fasteners are used to connect the connector 22 and the mating part 12.

[0039] In this embodiment, reference is made more clearly. Figure 2 and Figure 3 The storage tank 10 also includes a plurality of elastic tabs 51, which are located on the edge of each connection hole 23 near the second surface S2, and are adapted to seal the connection hole 23. (See more details) Figure 2 When the connector 22 is not connected to the mating part 12, adjacent elastic pieces 51 are pressed tightly against each other to seal the connection hole 23 (see reference). Figure 2 The multiple elastic pieces 511 (different numbers are used for the elastic pieces 511 only for the convenience of describing different states of the elastic pieces 51) are such that when the connector 22 mates with the mating piece 12, at least some of the elastic pieces 522 are not in close contact with adjacent elastic pieces 522 (see reference). Figure 2The elastic sheet 522 in the container is labeled differently only for ease of describing the different states of the elastic sheet 51; otherwise, it is the same as the elastic sheet 511. In this embodiment, the elastic sheet can be opened when the mating member 12 injects and / or discharges the working medium into the liquid storage tank 10, and the elastic sheet 51 can also be opened when the mating member 12 detects the internal working condition of the liquid storage tank 10.

[0040] Specifically, refer to Figure 5 As shown, when the fitting part 12 is a nitrogen-filling fitting part 31, nitrogen gas can be filled into the liquid storage tank 10 through the fixed connection between the nitrogen-filling fitting part 31 and the connecting part 22. The nitrogen-filling fitting part 31 can be connected to the outlet of the nitrogen generator. When filling the liquid storage tank 10 with nitrogen gas, the nitrogen generator is turned on. At this time, the nitrogen pressure in the fitting pipe 35 inside the nitrogen-filling fitting part 31 and the connecting pipe 24 of the connecting part 12 gradually rises to nearly 2 atmospheres, thereby filling the multiple tightly pressed elastic sheets 51 (refer to) Figure 2 The elastic sheet 511 (as shown) is opened using gas pressure, allowing nitrogen to smoothly enter the storage tank 10. At this time, the elastic sheet 51 is in the following state: Figure 2 As shown in the medium elastic sheet 522.

[0041] Furthermore, during the nitrogen filling process, the gas pressure above the electrolyte surface in the storage tank 10 also increases. When the gas is sufficient to push open the elastic sheet 51, the gas (a mixture of nitrogen and other gases such as air) in the storage tank 10 will be discharged through the connector 12 (refer to connector 221), which is not yet connected to the mating part 12. This ensures that no overpressure occurs in the storage tank 10, thus preventing damage to the tank body 61 (refer to...). Figure 4 When nitrogen filling is completed, the nitrogen pressure in the mating pipe 35 inside the nitrogen filling mating part 31 and the connecting pipe 24 of the connector 12 decreases. At this time, the elastic sheet 51 automatically closes and returns to a tightly pressed state, thereby achieving the effect of maintaining the sealing of the liquid storage tank 10.

[0042] On the other hand, continue to refer to Figure 5 When the injection fitting 33 and the connector 22 are fixedly connected, the fitting pipe 25 in the injection fitting 33 and the connecting pipe 24 in the connector 22 are connected. The injection fitting 33 is connected to an external injection pump. During injection, the injection pump is first started to draw electrolyte from the electrolyte pool or container. At this time, there is liquid pressure in the fitting pipe 25 in the injection fitting 33 and the connecting pipe 24 in the connector 22, which pushes open the tightly pressed elastic sheet 51, allowing the electrolyte to smoothly enter the storage tank. When the injection is completed, the liquid pressure in the fitting pipe 25 in the injection fitting 33 and the connecting pipe 24 in the connector 22 decreases, and the elastic sheet 51 automatically closes, thereby further maintaining the seal of the storage tank.

[0043] In this embodiment, the elastic sheet 51 can seal the connection hole 23 when it is not engaged with the mating part 12, preventing leakage and further improving the sealing performance of the storage tank 10 and ensuring its operational safety. For example, the elastic sheet 51 is made of corrosion-resistant soft plastic material, ensuring its stability within the storage tank 10 and thus better achieving sealing and leak-proof effects.

[0044] On the other hand, further reference Figure 5 The temperature sensor fitting 32 includes a temperature sensor 52. The probe 53 of the temperature sensor 52 passes through the fitting pipe 25 of the temperature sensor fitting 32 and the connecting pipe 24 of the connector 22. At this time, the temperature sensor 52 is stuck inside the fitting pipe 25. The probe 53 of the temperature sensor 52 pushes open the tightly attached elastic sheet 51 to penetrate below the liquid surface inside the storage tank 10 to accurately measure the temperature of the electrolyte. Other sensors, such as liquid level sensors, can also be inserted into the storage tank 10 through the above connection method to measure the liquid level, etc., which will not be described in detail here.

[0045] In this embodiment, refer to Figure 4 The storage tank 10 also includes a tank body 61, which includes a lid hole 62 that mates with the tank lid 11. The edge of the lid hole 62 includes a plurality of lid fastening holes 63. The tank body 61 of the storage tank 10 stores vanadium electrolyte. (See more details...) Figure 1 The can lid body 21 includes a can lid groove 67 and a can lid side cover 64 surrounding the groove. Multiple connectors 22 are located within the can lid groove 67. The can lid side cover 64 includes multiple side cover fastening holes 65, which correspond one-to-one with the can lid fastening holes 63 in spatial position. The can lid body 21 and the tank body 61 are fixedly connected by can lid fasteners (not shown). For example, the can lid fasteners pass sequentially through the side cover fastening holes 65 and the can lid fastening holes 63 to fix the can lid body 21 and the tank body 61, further improving the connection stability of the liquid storage tank 10 and ensuring the operational safety of the liquid storage tank 10.

[0046] In this embodiment, tank lids 11 with different inner diameters of connecting pipes 24 can be pre-processed as spares. If the inner diameter of the mating pipe 25 of the mating part 12 to be replaced does not match the inner diameter of the connecting pipe 24 in the existing connecting part 22, the tank lid 11 can be completely removed and replaced with a spare tank lid with a connecting part 22 that matches the inner diameter of the mating pipe 25 of the mating part 12. If there is a problem or dirt inside the tank 10 that requires personnel to enter for maintenance, the tank lid 11 can be completely removed. Because the diameter of the tank lid 11 is large enough (generally greater than 600mm), the lid hole 62 can be directly used as a maintenance manhole, making it convenient for adults to directly enter the interior for maintenance.

[0047] This application pre-installs multiple connectors on the tank cover of the electrolyte storage tank, thus anticipating multiple functional openings that the storage tank needs to connect to externally. The inner diameter of the connecting pipes for at least some of the connectors is pre-set according to the connection structure of the mating parts for different functional openings. This allows the tank cover to meet the connection requirements of different external functional parts when a new functional opening is needed. The electrolyte storage tank provided by this application eliminates the need for additional drilling or opening of the existing tank cover when a new functional opening is needed, and also eliminates the need to completely discharge the stored electricity in the battery system. This significantly improves the efficiency of replacing the tank cover, further reduces construction difficulty and cost, and lowers the risk of tank cracking and leakage.

[0048] Furthermore, the elastic plate design allows for sealing of the connection hole when it does not mate with the mating component. This helps maintain the internal seal of the storage tank 10 during component replacement, eliminating cumbersome operations and reducing energy waste. It also further prevents the charged vanadium electrolyte inside the storage tank 10 from oxidizing and deteriorating due to contact with air, thus preventing leaks. The electrolyte storage tank provided in this application is suitable for convenient testing of different types of equipment and sensors during product development, as well as for rapid replacement of vulnerable equipment and sensors during the operation and maintenance phase of commercial projects, reducing system downtime and generating greater economic value.

[0049] The basic concepts have been described above. Obviously, for those skilled in the art, the above disclosure is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore remain within the spirit and scope of the exemplary embodiments of this application.

[0050] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic related to at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0051] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the present application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0052] In some embodiments, numbers describing the quantity of components and attributes are used. It should be understood that such numbers used in the description of embodiments are modified in some examples with the terms "approximately," "approximately," or "generally." Unless otherwise stated, "approximately," "approximately," or "generally" indicates that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may be changed depending on the characteristics required by individual embodiments. In some embodiments, numerical parameters should take into account specified significant digits and employ a general method of digit reservation. Although the numerical ranges and parameters used to confirm their breadth of scope in some embodiments of this application are approximate values, in specific embodiments, such values ​​are set as precisely as feasible.

[0053] Although this application has been described with reference to specific embodiments, those skilled in the art should recognize that the above embodiments are only used to illustrate this application, and various equivalent changes or substitutions can be made without departing from the spirit of this application. Therefore, any changes or modifications to the above embodiments within the essential spirit of this application will fall within the scope of the claims of this application.

Claims

1. An electrolyte reservoir, characterized by include: A liquid storage tank lid, comprising a lid body and multiple connectors, wherein the lid body includes a first surface and a second surface opposite to each other, and the lid body includes multiple connecting holes; the connectors are located on the first surface, each connector includes a connecting pipe communicating with the connecting hole, and the inner diameter of the connecting pipe of each connector may be the same or different; Multiple mating parts are located on the side of the connector away from the first surface. Each mating part includes a mating conduit that communicates with the connecting conduit. The liquid storage tank is adapted to inject and / or discharge working fluid through the fitting and the connecting pipe; or, the fitting is adapted to detect the internal working condition of the liquid storage tank.

2. The electrolyte reservoir of claim 1, wherein, The fitting components include nitrogen filling fitting components, hydrogen venting fitting components, temperature sensing fitting components, liquid injection fitting components, gas phase equilibrium fitting components, and / or liquid level sensing fitting components.

3. The electrolyte reservoir of claim 1, wherein, The connector includes an upper flange located on the outer circumferential surface of the connecting pipe, and the upper flange includes a plurality of upper flange fastening holes. The mating component includes a mating flange located on the outer circumferential surface of the mating pipe, and the mating flange includes a plurality of mating fastening holes that correspond one-to-one with the upper flange fastening holes in spatial position.

4. The electrolyte reservoir of claim 3, wherein, It also includes flange fasteners, which pass sequentially through the mating fastening holes and the upper flange fastening holes to secure the mating parts and the connecting parts.

5. The electrolyte storage tank as described in claim 3, characterized in that, The upper flange is located at one end of the connecting pipe away from the first surface of the can cover body, and there is a first distance between the upper flange and the first surface, the first distance being greater than or equal to 38 mm.

6. The electrolyte storage tank as described in claim 3, characterized in that, The connector further includes a lower flange, which is located on the outer circumferential surface of the connecting pipe, and one side of the lower flange is in close contact with the first surface; wherein... The upper flange and the lower flange include multiple side wings, one end of each side wing is fixedly connected to the upper flange, and the other end of each side wing is fixedly connected to the lower flange.

7. The electrolyte storage tank as described in claim 1, characterized in that, It also includes a tank body, which includes a lid hole that mates with the lid of the storage tank. The edge of the lid hole includes a plurality of lid fastening holes. The lid body includes a lid groove and a lid side cover surrounding the groove. A plurality of the connectors are located in the lid groove. The lid side cover includes a plurality of side cover fastening holes, and the side cover fastening holes correspond one-to-one with the lid fastening holes in space.

8. The electrolyte storage tank as described in claim 7, characterized in that, It also includes a can lid fastener, which passes through the side cover fastening hole and the can lid fastening hole in sequence to fix the liquid storage tank lid to the tank body.

9. The electrolyte storage tank as described in claim 1, characterized in that, It also includes a plurality of elastic tabs located on the edge of each of the connecting holes near the second surface. The elastic tabs are adapted to seal the connecting holes and are adapted to open when the mating member injects and / or discharges working fluid into the reservoir. The elastic tabs are also adapted to open when the mating member is adapted to detect the internal working condition of the reservoir.

10. The electrolyte storage tank as described in claim 9, characterized in that, When the connector is not engaged with the mating member, adjacent elastic pieces are pressed against each other to seal the connection hole. When the connector is engaged with the mating member, at least some of the elastic pieces are not pressed against adjacent elastic pieces.

Images