CN217988610U - Filter device suitable for flow battery and flow battery - Google Patents

Abstract

The utility model provides a filter equipment and redox flow battery suitable for redox flow battery. The filtering device is suitable for being connected to at least two sections of pipelines in the flow battery, and the filtering device specifically comprises: a filter section including a filter element; and the pipeline joint is suitable for fixing the at least two sections of pipelines and the filtering part so as to enable the at least two sections of pipelines and the filtering part to be mutually connected through the pipeline joint. The utility model discloses a filter equipment and redox flow battery that is suitable for thereof, the inside space that can the rational utilization redox flow battery is in order to realize the filter effect of electrolyte.

Description

Filter device suitable for flow battery and flow battery

Technical Field

The utility model mainly relates to a redox flow battery field especially relates to a filter equipment and redox flow battery suitable for redox flow battery.

Background

In the mixing and flowing process of the electrolyte of the conventional flow battery, impurities are often doped in a chemical solution, a pump, a liquid mixing part and a pipeline. Meanwhile, in the continuous charging and discharging process of the flow battery, some metal compounds can be precipitated due to the change of temperature. The presence of these impurities and compounds can clog the flow channels of the cell, affecting the function of the cell.

The conventional flow battery filtering device is usually provided with a filter externally connected to a pipeline of a fluid pipeline, so that electrolyte passes through a filter element in the filter, and the filter element is of a mesh structure and is made of a specific material according to the components of fluid, so that impurities in the solution can be filtered, and the whole flow battery system is protected. However, the size of the filter is large, the whole system of the flow battery is usually arranged in a container, more important space can be occupied if more filters are arranged, structural arrangement of other parts is not facilitated, and the flow speed can be reduced after the solution passes through the filter element of the whole large filter, so that the operation efficiency of the whole system can be influenced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a filter equipment and redox flow battery that is suitable for thereof, the inside space that can the rational utilization redox flow battery is in order to realize the filter effect of electrolyte.

In order to solve the technical problem, the utility model provides a filter equipment suitable for redox flow battery, filter equipment is suitable for and is connected to two at least sections pipelines in redox flow battery, two at least sections pipelines are including coming from two sections or multistage pipelines in different way pipeline among the redox flow battery and/or the pipeline of the same way, filter equipment includes: a filter section including a filter element; and a pipe joint adapted to fix the at least two lengths of pipe and the filter portion such that the at least two lengths of pipe and the filter portion are connected to each other by the pipe joint.

In an embodiment of the present invention, the pipe joint comprises at least two interfaces, and the interfaces are adapted to connect the pipes.

In an embodiment of the present invention, the filter element includes a filter screen and a support frame.

In an embodiment of the present invention, the filter part further includes a filter element housing, and the filter element housing is adapted to accommodate the filter screen and the support frame.

In an embodiment of the invention, the cartridge housing includes a projection, and the pipe joint includes a cavity, the projection being adapted to be inserted into the cavity so that the pipe joint secures the filter portion.

In an embodiment of the present invention, the filter further includes a sealing portion, the sealing portion is located at one end of the filtering portion, and the sealing portion is suitable for passing through the filter element housing to seal the filtering portion and the pipe joint.

In an embodiment of the invention, the sealing portion includes a cover and a sealing ring.

In an embodiment of the present invention, the filter element housing has a T-shaped structure, and the sealing portion seals the filtering portion and the pipe joint through the T-shaped structure.

In an embodiment of the present invention, the included angle between at least two of the at least two sections of pipelines is an acute angle, a right angle, an obtuse angle and/or a straight angle.

The present invention also provides a flow battery, which comprises at least two sections of pipelines and at least one filtering device as described above, wherein the at least two sections of pipelines include two or more sections of pipelines from different pipelines and/or the same pipeline in the flow battery.

Compared with the prior art, the utility model has the advantages of it is following: the electrolyte filtering device provided by the utility model has the advantages of compact structure, convenient disassembly and replacement of the filtering structure, low production cost, less influence on the flow of the electrolyte and saving the structural size arrangement of the pipeline space; insert in redox flow battery the utility model discloses a filter equipment can filter the impurity that the diameter is greater than 9 mu m in the electrolyte and the metallic compound who deposits, prevents that this type of material from blockking up redox flow battery's runner or getting into the function that the galvanic pile influences redox flow battery, guarantees redox flow battery's health, improves the life of battery.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the principle of the invention. In the drawings:

fig. 1 is a schematic cross-sectional view of a filter device suitable for a flow battery according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view, partially in cross-section, of the filter apparatus suitable for use in a flow battery, as shown in FIG. 1;

fig. 3 is a schematic cross-sectional view of a filter device suitable for a flow battery according to another embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of a filter device suitable for a flow battery according to another embodiment of the present invention;

fig. 5 is a schematic cross-sectional view of a filter device suitable for use in a flow battery according to another embodiment of the present invention; and

fig. 6 is a schematic cross-sectional view of a filter device suitable for a flow battery according to another embodiment of the present invention.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only examples or embodiments of the application, from which the application can also be applied to other similar scenarios without inventive effort for a person skilled in the art. Unless otherwise apparent from the context, or otherwise indicated, like reference numbers in the figures refer to the same structure or operation.

As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

For ease of description, spatially relative terms such as "over … …", "over … …", "over … …", "over", etc. may be used herein to describe the spatial positional relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited. Further, although the terms used in the present application are selected from publicly known and used terms, some of the terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein. Further, it is required that the present application is understood not only by the actual terms used but also by the meaning of each term lying within.

It will be understood that when an element is referred to as being "on," "connected to" or "contacting" another element, it can be directly on, connected or coupled to, or contacting the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly on," "directly connected to" or "directly in contact with" another element, there are no intervening elements present.

Referring to fig. 1, an embodiment of the present invention provides a filtering device 10 (hereinafter referred to as "filtering device 10") suitable for a flow battery. The filter device 10 is adapted to be connected to at least two sections of tubing, tubing 101 and tubing 102 being shown separately in fig. 1, in a flow battery. According to fig. 1, the filter device 10 comprises a filter house 11 and a pipe connection 12. Specifically, in the embodiment shown in fig. 1, the filter portion 11 includes a filter element, and the filter element is composed of a filter mesh 111 and a support frame 112. In the embodiment shown in fig. 1, the pipe joint 12 is adapted to fix the pipes 101 and 102 and the filter house 11 such that the two lengths of pipes 101 and 102 and the filter house 11 are connected to each other by the pipe joint 12. In practical applications, the electrolyte can flow into the filtering device 10 from the pipe 101, and after being filtered by the filter element, the electrolyte can flow continuously in the pipe 102, so that the electrolyte can be filtered during the flowing process.

In the embodiments of the present invention including fig. 1, the pipes 101 and 102 and other sections of pipes that may be connected to the pipe joint 12 may be from different pipelines in the flow battery, or any one or more sections of the same pipeline, or a combination of the above two. Therefore, the pipe joint 12 can be located at the joint of different pipelines or at the bending part of two pipelines in the same pipeline. The utility model discloses do not make the restriction to whether the multistage pipeline that pipe joint 12 is connected comes from the same way pipeline or different way pipelines of redox flow battery.

As can be seen in fig. 1, the pipe joint 12 comprises two interfaces 121 and 122, the interfaces 121 and 122 connecting the pipe 101 and the pipe 102, respectively. However, the present invention is not limited to this, and in the embodiment that needs to connect more pipelines, the pipe joint may determine the number and size of the interface according to the number and size of the pipelines that need to be connected.

Preferably, in the embodiment shown in fig. 1, the filter portion 11 further comprises a cartridge housing 113, and the cartridge housing 113 accommodates the filter mesh 111 and the support frame 112. Illustratively, the cartridge housing 113 may be configured as a mesh structure that primarily serves to allow electrolyte to pass through and support the internal structure. In the different embodiments of the present invention, the filter element housing 113 can be fixed in the pipe joint 12 more firmly by different designs in the shape besides the function of holding the filter screen 111 and the supporting frame 112. An exemplary description of these different designs will be provided separately below. Before this, the sealing portion 13 included in the filter device 10 in fig. 1 will be explained.

In fig. 1, the filter device 10 further includes a sealing portion 13 on the basis of the filter portion 11 and the pipe joint 12, and the sealing portion 13 is located at one end of the filter portion 11 (which can be understood as an upper end of the filter portion 11 in fig. 1). The sealing portion 13 functions to seal the filter portion 11 from the pipe joint 12 in the structure shown in fig. 1. Specifically, in the embodiment shown in fig. 1, the sealing portion 13 includes a cap 131 and a packing 132. Based on the structure of the sealing part 13, the filter cartridge housing 113 has a T-shaped structure in the embodiment shown in fig. 1, and the sealing part 13 seals the filter part 11 and the pipe joint 12 by the T-shaped structure. According to the section shown in fig. 1, the T-shaped structure is constituted by a vertical rectangle bounded by a support frame 112 and by two laterally extending portions 113' at the upper end of the filter house 11. Reference may be made more clearly to the enlarged partial view of the T-shaped structure shown in figure 2. The two laterally extending portions 113' are vertically engaged with the sealing ring 132 and fall on the main structure of the pipe joint 12, so that the filter screen 111 and the support frame 112 are more firmly fixed in the pipe joint 12 and do not fall off in the vertical direction while ensuring sealing. Also, with such a structure, the filter screen 111 in the T-shaped structure is supported at the outer edge of the joint of the cover 131, the entire filter portion 11 is fixed when the cover 131 is closed, and the filter cartridge housing 113 or the filter cartridge (e.g., the filter screen 111 and/or the support frame 112) therein can be replaced when the cover 131 is opened.

In addition to this, the filter house 11 can be fixed in the pipe joint 12 in other ways. For example, in the filter device 30 shown in fig. 3, the filter element housing 113 is designed with the structure of the protrusion 1130, and the pipe joint 12 further includes a cavity 1120 in the present embodiment, and the insertion of the protrusion 1130 into the cavity 1120 can also achieve the effect that the filter part 11 does not fall off in the vertical direction. Similarly, the protrusion 1130 does not interfere with the removal of the filter portion 11 from the pipe joint 12 as a whole while performing the fixing function. It is understood that the structure similar to the protrusion 1130 may be specifically designed according to the number of pipes, the included angle between the pipes, the diameter of the pipes, and other parameters, and the present invention is not limited to the form shown in fig. 3.

On this basis, fig. 4 shows another filter device 40, the filter device 40 being a variant based on the filter device 10. In the embodiment shown in fig. 4, the T-shaped structure shown in fig. 1 and 2 and the protrusion shown in fig. 3 are not provided, but the cartridge housing 113 and the cover 131 are directly connected and seal ring 132 is provided to complete the seal. In the embodiment shown in fig. 4, the cartridge housing 113 may be designed with a separate connecting portion 1131, or the connecting portion 1131 may be understood as being integrally formed with the cartridge housing 113, and the present invention is not limited to the specific manner in which the cartridge housing 113 is directly connected to the sealing portion 13. With the structure shown in fig. 4, for example, the filter part 11 can be taken out of the pipe joint 12 together with the cover 131, and then the filter element (such as the filter screen 111 and/or the support frame 112) therein can be replaced, and the cover 131 is closed and sealed after the replacement is completed.

In the structure of the filtering apparatus described with reference to fig. 1 to 4, the pipe 101 and the pipe 102 in the two sections of pipes are perpendicular to each other, but the present invention is not limited thereto. In practical application, the pipelines which are mutually acute angles, right angles, obtuse angles and/or straight angles can be specifically connected according to the trend of the specific pipelines. Illustratively, fig. 5 shows a filter assembly 50 in which two sections of tubing 101 and 102 are at an obtuse angle to each other, and since the other structures (including the T-shaped structure of the cartridge housing 113) are the same as the embodiment shown in fig. 1, the same reference numerals have been applied to the same parts, except that the tubing connector 12' in fig. 5 is also adjusted in shape as compared to the tubing connector 12 in order to accommodate the obtuse angle relationship between the tubing 101 and the tubing 102. In fact, as for fig. 1 or fig. 5, the same two sections of pipes 101 and 102, according to the variation of their positional relationship, adopt the pipe joint 12 and the pipe joint 12', respectively, to match the positional relationship of the pipes at right and obtuse angles. In a plurality of embodiments of the present invention, the specific shape, size and angle of the pipe joint, etc. can be set according to the position and size of the multi-channel pipes, and the various modifications about the pipe joint aimed at connecting the filtering portion and the multi-channel pipes all belong to the spirit and scope of the present invention.

Finally, in each embodiment of the filtering device described above with reference to fig. 1 to 5, two sections of pipes are shown, but the present invention is not limited thereto, and in other embodiments of the present invention, the number of pipes may be 3 or more. Exemplarily, fig. 6 shows a schematic view of an implementation with three-way piping, and the filter device 60 shown in fig. 6 can be understood as a further variant of the filter device 10 shown in fig. 1, and therefore the same reference numerals are used for the same parts as for the filter device 10 shown in fig. 1. The pipe connection 12 "adds an interface 123 to the filter apparatus 10 to allow for the reconnection of the pipe 103 to the base of the pipe 101 and the pipe 102. It can be seen that in fig. 6, the pipe 102 is at right angles to the pipes 101 and 103, respectively, while the pipes 101 and 103 are at a right angle to each other.

Of course, the specific implementation of the filter unit 11 in the filter device 50 shown in fig. 5 and the filter device 60 shown in fig. 6 is not limited to the filter cartridge housing 113 having the T-shaped structure shown in fig. 1. Illustratively, the obtuse angular relationship of the two-piece duct and the three-way duct connections shown in fig. 5 and 6 may be modified based on the filter assembly 30 shown in fig. 3 or the filter assembly 40 shown in fig. 4, respectively. In summary, the present invention provides a filtering device for flow battery in multiple embodiments, which can be combined with the structure of the bending point of multiple pipelines to filter the electrolyte flowing in two or multiple pipelines with any position relationship on the basis of the filtering structures with three different types of T-shaped structure connection, protrusion connection and direct connection as shown in fig. 1-4. And the filter part therein all can convenient dismantlement in order to realize the regular replacement of filter core to realize that the pipeline of different position relations can realize the filtration of electrolyte when interconnect in the redox flow battery, the effectual inner space that has utilized the redox flow battery realizes the filter effect.

It should be noted that, in a plurality of embodiments of the present invention, a pipe joint dedicated for realizing the technical effects of the present invention is adopted. In order to reduce development costs, the pipe joint may in some cases be modified by design according to the joints most commonly used in the art. Illustratively, the most commonly used pipe joints are, for example, tee joints and angle joints, the pipe joints set in the present invention are slightly thicker than the commonly used joints, and the inner diameter of the pipe inside the pipe joints of the present invention is designed to be consistent with the inner diameter of the pipe needing to be connected with each other in the flow battery, so that the filtering parts (such as the filtering net and the supporting frame) can be very conveniently replaced. If directly use ordinary joint, because the pipeline internal diameter that ordinary joint is greater than the pipeline internal diameter among the redox flow battery, then can make the pipeline outstanding one section, be unfavorable for changing filtration and make the joint overlength of filtration undersize or design, consequently the utility model discloses further improved the design on the basis that ordinary joint was in prior art. The utility model discloses the size of each structure in pipe joint and the filter portion in the different embodiments is according to the size of pipeline and corresponding design, and the cost is lower, and the universality is stronger.

The utility model provides a pipe joint in each embodiment can place foretell filter house among them at least all the way, and the filter house is deepened certain part of pipeline (for example be the pipeline 102 mentioned in each above-mentioned embodiment), can change length and size according to the difference of the velocity of flow, pipe diameter and the pressure of pipeline to combine pipe joint's structure can tear filtration open at any time and trade. Combine the utility model discloses a different filter equipment has been constituteed to pipe joint and filter house, and filter equipment reunion flow battery is inside concrete pipeline structure to reach filterable effect under the prerequisite of rational utilization battery inner space.

The utility model discloses an on the other hand has still provided a flow battery, including the pipeline that two at least ways are suitable for to make the electrolyte circulation among this flow battery, and at least one the utility model discloses the filter equipment that any embodiment provided. When having a plurality of filter equipment among the redox flow battery, combine all pipeline position's in the redox flow battery whole to arrange, will the utility model discloses a two or above series connection are carried out to filter equipment in redox flow battery, can further increase the filter effect. The utility model discloses each embodiment can combine pipe joint to combine the department of bending or long pipeline part of pipeline, with the reasonable distribution of a plurality of filter equipment and arranging, the spatial arrangement rate of saving redox flow battery interior conduit that can be fine to still can vacate the space for other equipment or structure when playing the filter effect.

Having thus described the basic concept, it will be apparent to those skilled in the art that the foregoing disclosure is by way of example only, and is not intended to limit the present application. Various modifications, improvements and adaptations to the present application may occur to those skilled in the art, although not explicitly described herein. Such modifications, improvements and adaptations are proposed in the present application and thus fall within the spirit and scope of the exemplary embodiments of the present application.

Also, this application uses specific language to describe embodiments of the application. Reference throughout this specification to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with at least one embodiment of the present application is included in at least one embodiment of the present application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, certain features, structures, or characteristics may be combined as suitable in one or more embodiments of the application.

Similarly, it should be noted that in the preceding description of embodiments of the present application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to require more features than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single embodiment disclosed above.

Numerals describing the number of components, attributes, etc. are used in some embodiments, it being understood that such numerals used in the description of the embodiments are modified in some instances by the use of the modifier "about", "approximately" or "substantially". Unless otherwise indicated, "about", "approximately" or "substantially" indicates that the number allows a variation of ± 20%. Accordingly, in some embodiments, the numerical parameters set forth in the specification and claims are approximations that may vary depending upon the desired properties sought to be obtained by a particular embodiment. In some embodiments, the numerical parameter should take into account the specified significant digits and employ a general digit preserving approach. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the range are approximations, in the specific examples, such numerical values are set forth as precisely as possible within the scope of the application.

Although the present application has been described with reference to the present specific embodiments, it will be recognized by those skilled in the art that the foregoing embodiments are merely illustrative of the present application and that various changes and substitutions of equivalents may be made without departing from the spirit of the application, and therefore, it is intended that all changes and modifications to the above-described embodiments that come within the spirit of the application fall within the scope of the claims of the application.

Claims (10)

1. A filtration device suitable for use in a flow battery, the filtration device adapted to be connected to at least two segments of tubing in a flow battery, the at least two segments of tubing comprising two or more segments of tubing from different lines and/or a same line in the flow battery, the filtration device comprising:

a filter section including a filter element; and

a pipe joint adapted to secure the at least two lengths of pipe and the filter portion such that the at least two lengths of pipe and the filter portion are interconnected by the pipe joint.

2. The filtration apparatus of claim 1, wherein the conduit coupler comprises at least two interfaces adapted to couple to the conduit.

3. The filtration apparatus of claim 1, wherein the filter element comprises a filter screen and a support frame.

4. The filtration apparatus of claim 3, wherein the filter portion further comprises a cartridge housing adapted to receive the filter screen and the support frame.

5. The filter apparatus of claim 4, wherein the cartridge housing includes a projection and the conduit coupler includes a cavity, the projection adapted to be inserted into the cavity to secure the conduit coupler to the filter cartridge.

6. The filter apparatus of claim 4, further comprising a seal portion located at one end of the filter portion and adapted to seal the filter portion to the pipe connection through the cartridge housing.

7. The filtration apparatus of claim 6, wherein the seal comprises a cap and a gasket.

8. The filter apparatus of claim 6, wherein the cartridge housing has a T-configuration, the seal sealing the filter portion to the pipe joint via the T-configuration.

9. The filtration apparatus of any one of claims 1 to 8, wherein the included angle between at least two of the at least two lengths of pipe is an acute angle, a right angle, an obtuse angle, or a straight angle.

10. A flow battery comprising at least two segments of piping and at least one filtration device of any one of claims 1-9, wherein the at least two segments of piping comprise two or more segments from different and/or the same line in the flow battery.

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