Flow frame assembly of flow battery

Abstract

The utility model relates to the technical field of flow battery structures, and discloses a flow frame assembly of a flow battery. The flow cell flow frame assembly comprises a hexagonal flow frame, the hexagonal flow frame is of a flat-plate-shaped structure, a hexagonal stepped hole is formed in the middle of the hexagonal flow frame, diffusion grooves distributed in a hexagonal mode are formed in the front side of the hexagonal flow frame, the opposite sides of the diffusion grooves are communicated with the hexagonal stepped hole, and the hexagonal stepped hole is communicated with the hexagonal stepped hole. The device has the advantages that the liquid flow frame supplies liquid to the polar plate, the contact area of the supplied liquid and the edge of the polar plate is large, then the flow and the flow velocity of electrolyte can be improved, and heating of the polar plate can be reduced, and solves the problems that in the prior art, rectangular polar plates are generally embedded in the liquid flow frame, a flow channel in the liquid flow frame supplies liquid to the polar plate, but the liquid flow frame supplies liquid to the polar plate; and only one rectangular edge of the rectangular polar plate is supplied with liquid, and the contact area of the supplied liquid and the edge of the rectangular polar plate is small, so that the flow and the flow velocity of the electrolyte are reduced, and the polar plate is heated.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid flow battery structure technical field, concretely is a kind of liquid flow battery liquid flow frame assembly. BACKGROUND

[0002] The liquid flow frame in liquid flow battery is also called fluid cavity or reaction chamber, which functions to separate cathode and anode, provide flow channel for electrolyte and provide structural support.

[0003] In the prior art, rectangular polar plates are generally embedded in the liquid flow frame, and the flow channel in the liquid flow frame supplies liquid to the polar plates. However, the liquid flow frame supplies liquid to the polar plates only along one side of the rectangular polar plates, and the liquid supply contacts a small area of the edge of the rectangular polar plates, thereby reducing the flow rate and flow velocity of the electrolyte and causing the polar plates to heat up. Therefore, a liquid flow battery liquid flow frame assembly is proposed to solve the above problems. SUMMARY

[0004] (I) Technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a liquid flow battery liquid flow frame assembly, which has the advantages of supplying liquid to polar plates, contacting a large area of the edge of the polar plates, thereby improving the flow rate and flow velocity of the electrolyte and reducing the heating of the polar plates. The utility model solves the problem of the prior art, in which rectangular polar plates are generally embedded in the liquid flow frame, and the flow channel in the liquid flow frame supplies liquid to the polar plates. However, the liquid flow frame supplies liquid to the polar plates only along one side of the rectangular polar plates, and the liquid supply contacts a small area of the edge of the rectangular polar plates, thereby reducing the flow rate and flow velocity of the electrolyte and causing the polar plates to heat up.

[0006] (II) Technical solution

[0007] The technical solution of the utility model to solve the above technical problems is as follows: a liquid flow battery liquid flow frame assembly, comprising a hexagonal liquid flow frame, the hexagonal liquid flow frame is a flat plate structure, a hexagonal stepped hole is formed in the middle of the hexagonal liquid flow frame, diffusion grooves in a hexagonal distribution are formed on the front side of the hexagonal liquid flow frame, the opposite sides of the diffusion grooves are in communication with the hexagonal stepped hole, a flow dividing column is fixedly connected to the middle of the groove bottom of each diffusion groove, an equalizing column in an equal distance distribution and located on both sides of the flow dividing column is fixedly connected to the groove bottom of each diffusion groove, flow holes in an upper-lower symmetrical distribution are formed on the front side of the hexagonal liquid flow frame, flow dividing grooves in an upper-lower symmetrical distribution and in communication with the flow holes and the diffusion grooves are formed on the front side of the hexagonal liquid flow frame, and a flow intercepting column is fixedly connected to the inside of each flow dividing groove and located between the flow hole and the adjacent flow dividing column.

[0008] The utility model has the advantages of:

[0009] The liquid flow battery liquid flow frame assembly, electrolyte flows into through the flow liquid hole on the upper side, then flows into the diffusion groove on the upper half of the hexagonal liquid flow frame through the shunt groove, the diffusion groove on the upper half of the hexagonal liquid flow frame is closest to the flow liquid hole, so that the shutoff column is arranged between the flow liquid hole and the adjacent shunt column, so that the electrolyte uniformly flows into the diffusion groove on the upper half of the hexagonal liquid flow frame, the electrolyte flows into the diffusion groove on the upper half, the electrolyte is shunted by the shunt column, then uniformly flows into the hexagonal ladder hole through the gap between the flow equalizing columns and contacts the polar plate, then flows out through the diffusion groove on the lower half of the hexagonal liquid flow frame, the electrolyte is collected through the lower shunt groove, and finally flows out from the lower flow liquid hole, so that the hexagonal liquid flow frame supplies liquid to the polar plate, the liquid supply contacts the edge area of the polar plate, so that the flow rate and flow speed of the electrolyte can be improved, and the heat generation of the polar plate is reduced.

[0010] Based on the above technical scheme, the utility model further can make improvement as follows.

[0011] Further, the shunt column is matched with the shunt groove.

[0012] The beneficial effect of the above further scheme is that the electrolyte flows into the diffusion groove through the shunt groove, the shunt column shunts the electrolyte, and the electrolyte uniformly and smoothly flows into the hexagonal ladder hole through the gap between the flow equalizing columns and contacts the polar plate.

[0013] Further, the front side of the hexagonal liquid flow frame is provided with circular holes in a hexagonal distribution.

[0014] The beneficial effect of the above further scheme is that the circular holes are used for the installation of the connecting piece when the hexagonal liquid flow frame is connected in parallel.

[0015] Further, the front side of the hexagonal liquid flow frame is fixedly connected with a hexagonal rubber gasket matched therewith.

[0016] The beneficial effect of the above further scheme is that the hexagonal rubber gasket prevents liquid leakage between adjacent hexagonal liquid flow frames.

[0017] Further, the hexagonal ladder hole is matched with the polar plate and the ion conductive film.

[0018] The beneficial effect of the above further scheme is that the hexagonal ladder hole is used for installing the polar plate and the ion conductive film. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is a structural schematic view of the utility model;

[0020] Fig. 2 It is a top view and sectional view of the hexagonal liquid flow frame of the utility model;

[0021] Fig. 3 It is an enlarged schematic view of the structure at a.

[0022] In the figure: 1, hexagonal liquid flow frame; 2, hexagonal stepped hole; 3, diffusion groove; 4, flow dividing column; 5, flow equalizing column; 6, flow liquid hole; 7, flow dividing groove; 8, intercepting column; 9, round hole; 10, hexagonal rubber gasket. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] In the embodiments, the hexagonal liquid flow frame 1 is provided with a plurality of diffusion grooves 3, flow dividing columns 4 and flow equalizing columns 5. Figs. 1-3 Provided is a kind of liquid flow battery liquid flow frame assembly, the utility model includes hexagonal liquid flow frame 1, the hexagonal liquid flow frame 1 is flat plate structure, the middle part of the hexagonal liquid flow frame 1 is equipped with hexagonal stepped hole 2, the front side of the hexagonal liquid flow frame 1 is equipped with diffusion groove 3 in hexagonal distribution, the opposite side of the diffusion groove 3 is all communicated with hexagonal stepped hole 2, the middle part of the groove bottom of the diffusion groove 3 is all fixedly connected with flow dividing column 4, the groove bottom of the diffusion groove 3 is fixedly connected with flow equalizing column 5 in equidistance distribution and located flow dividing column 4 two sides, the front side of the hexagonal liquid flow frame 1 is equipped with flow liquid hole 6 in upper and lower symmetry distribution, the front side of the hexagonal liquid flow frame 1 is equipped with flow dividing groove 7 in upper and lower symmetry distribution and respectively communicated with flow liquid hole 6 and diffusion groove 3, the inside of the flow dividing groove 7 is all fixedly connected with intercepting column 8 located between flow liquid hole 6 and adjacent flow dividing column 4;

[0025] Flow dividing column 4 and flow dividing groove 7 are matched;

[0026] Electrolyte flows into diffusion groove 3 through flow dividing groove 7, and flow dividing column 4 divides the electrolyte, so that the electrolyte flows into hexagonal stepped hole 2 through the gap between flow equalizing columns 5 and contacts with the polar plate evenly and stably;

[0027] The front side of the hexagonal liquid flow frame 1 is equipped with round hole 9 in hexagonal distribution;

[0028] Round hole 9 is used for installing connecting piece when the hexagonal liquid flow frame 1 is connected in parallel;

[0029] The front side of the hexagonal liquid flow frame 1 is fixedly connected with hexagonal rubber gasket 10 matched therewith;

[0030] Hexagonal rubber gasket 10 prevents liquid leakage between adjacent hexagonal liquid flow frames 1;

[0031] Hexagonal stepped hole 2 is matched with the polar plate and ion conductive membrane.

[0032] The hexagonal stepped hole 2 is used for mounting the polar plate and the ion conducting film.

[0033] Working principle:

[0034] First step: the electrolyte flows into the upper flow hole 6, and then flows into the diffusion groove 3 of the upper half of the hexagonal flow frame 1 through the flow distribution groove 7. The uppermost diffusion groove 3 is closest to the flow hole 6, so a flow blocking column 8 is arranged between the flow hole 6 and the adjacent flow distribution column 4, so that the electrolyte uniformly flows into the diffusion groove 3 of the upper half of the hexagonal flow frame 1.

[0035] Second step: the electrolyte flows into the diffusion groove 3 of the upper half, and the electrolyte is distributed by the flow distribution column 4, and then uniformly flows into the hexagonal stepped hole 2 through the gap between the flow distribution columns 5 and contacts the polar plate, so that the electrolyte flows out through the diffusion groove 3 of the lower half of the hexagonal flow frame 1.

[0036] Third step: the electrolyte is collected through the lower flow distribution groove 7, and finally discharged from the lower flow hole 6. The hexagonal flow frame 1 supplies liquid to the polar plate, the contact edge area of the polar plate is large, and then the electrolyte flow and flow rate can be improved, and the heating of the polar plate can be reduced.

[0037] It should be noted that the relational terms such as first and second and the like in the present text are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

[0038] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A flow battery flow frame assembly comprising a hexagonal flow frame (1) in a flat plate configuration, characterized in that: The middle of the hexagonal liquid flow frame (1) is provided with a hexagonal stepped hole (2), the front side of the hexagonal liquid flow frame (1) is provided with diffusion grooves (3) distributed in a hexagonal shape, opposite sides of the diffusion grooves (3) are communicated with the hexagonal stepped hole (2), the middle of the groove bottom of the diffusion grooves (3) is fixedly connected with a shunt column (4), the groove bottom of the diffusion grooves (3) is fixedly connected with a flow column (5) which is distributed at equal distances and located on both sides of the shunt column (4), the front side of the hexagonal liquid flow frame (1) is provided with flow liquid holes (6) which are symmetrically distributed in an up-down direction, the front side of the hexagonal liquid flow frame (1) is provided with shunt grooves (7) which are symmetrically distributed in an up-down direction and communicated with the flow liquid holes (6) and the diffusion grooves (3) respectively, the inside of the shunt grooves (7) is fixedly connected with a cut-off column (8) which is located between the flow liquid hole (6) and the adjacent shunt column (4).

2. A liquid flow battery liquid flow frame assembly according to claim 1, wherein: The shunt column (4) is matched with the shunt groove (7).

3. A liquid flow battery liquid flow frame assembly according to claim 1, wherein: The front side of the hexagonal liquid flow frame (1) is provided with circular holes (9) which are distributed in a hexagonal shape.

4. The liquid flow battery liquid flow frame assembly of claim 1, wherein: The front side of the hexagonal liquid flow frame (1) is fixedly connected with a hexagonal rubber gasket (10) matched therewith.

5. The liquid flow battery liquid flow frame assembly of claim 1, wherein: The hexagonal stepped hole (2) is matched with the polar plate and the ion-conducting membrane. The hexagonal stepped hole (2) is matched with the polar plate and the ion-conducting membrane.

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