Positive electrode electrolyte filtering device of all-vanadium redox flow battery

Abstract

The utility model relates to the technical field of all-vanadium redox flow battery positive electrode electrolyte filtering devices, in particular to an all-vanadium redox flow battery positive electrode electrolyte filtering device which comprises an all-vanadium redox flow battery positive electrode tank and a straight pipe. A top cover is inserted into the top of the all-vanadium redox flow battery positive electrode tank, and a control structure is connected to the lower part of the right side of the inner wall of the all-vanadium redox flow battery positive electrode tank. A handle in a control structure drives a screw rod to rotate, the rotating screw rod enables a vertical plate to rotate, and due to the fact that the top of the vertical plate is in sliding connection with a notch of a straight plate, when the screw rod rotates, the vertical plate moves leftwards, the moving vertical plate drives a circular ring to move leftwards on the surface of a net cylinder, and the circular ring pushes precipitates on the surface of the net cylinder away; the protection effect of the positive electrode electrolyte filtering device of the all-vanadium redox flow battery is improved, and the normal use of the positive electrode electrolyte filtering device of the all-vanadium redox flow battery is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of all-vanadium redox flow battery positive electrode electrolyte filtering devices, in particular to an all-vanadium redox flow battery positive electrode electrolyte filtering device. Background Art

[0002] The positive electrode electrolyte filtration device of the all-vanadium redox flow battery can effectively alleviate the blockage of the pipeline caused by positive electrode precipitates and ensure the operation and maintenance frequency of the positive electrode electrolyte filtration device of the all-vanadium redox flow battery.

[0003] For example, an electrolysis device for an all-vanadium liquid flow battery electrolyte with the authorization announcement number "CN204668400U" has a battery stack connected to a negative electrode liquid storage tank through a pipeline, a second cooling device is provided between the battery stack and the negative electrode liquid storage tank through a pipeline, a negative electrode pump is provided between the battery stack and the negative electrode storage pump through a pipeline, and a second filtering device is provided between the battery stack and the negative electrode pump through a pipeline. It has the advantages of good electrolysis effect, simple structure, easy control, simple operation and safety. However, in the use of the positive electrode electrolyte filtering device of the all-vanadium liquid flow battery, the filter is placed in the pipeline position and has no cleaning structure. Although it can prevent precipitates from entering the pipeline, it will cause the precipitates to adhere to the surface of the filter. When the surface of the filter is full of precipitates, blockage will still occur, which reduces the protective effect of the positive electrode electrolyte filtering device of the all-vanadium liquid flow battery and affects the normal use of the positive electrode electrolyte filtering device of the all-vanadium liquid flow battery. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the protective effect of the positive electrode electrolyte filtering device of the all-vanadium redox flow battery is reduced and the normal use of the positive electrode electrolyte filtering device of the all-vanadium redox flow battery is affected, and a positive electrode electrolyte filtering device of the all-vanadium redox flow battery is proposed.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A vanadium liquid flow battery cathode electrolyte filtration device is designed, comprising an all-vanadium liquid flow battery cathode tank and a straight pipe, wherein the lower right side of the all-vanadium liquid flow battery cathode tank is connected to the left side of the straight pipe, a top cover is inserted into the top of the all-vanadium liquid flow battery cathode tank, a control structure is connected to the lower right side of the inner wall of the all-vanadium liquid flow battery cathode tank, and a support structure is connected to the bottom of the all-vanadium liquid flow battery cathode tank.

[0007] Preferably, the control structure includes a straight plate and a vertical plate, the right side of the straight plate is fixedly connected to the lower right side of the inner wall of the all-vanadium liquid flow battery positive electrode tank, the bottom notch of the straight plate is slidingly connected to the top of the outer wall of the vertical plate, the inner wall of the vertical plate is threadedly connected to a screw, the right side of the screw is fixed with a handle, the bottom of the vertical plate is fixed with a circular ring, and the inner wall of the circular ring is fitted with a mesh tube.

[0008] Preferably, the right side of the outer wall of the screw is rotatably connected to the lower right side of the positive electrode tank of the all-vanadium liquid flow battery.

[0009] Preferably, the right side of the inner wall of the mesh cylinder is fixedly connected to the left side of the outer wall of the straight tube.

[0010] Preferably, the top of the top cover is connected to a curved pipe.

[0011] Preferably, the support structure includes a base plate and a bracket, the top of the base plate is fixedly connected to the bottom of the positive electrode tank of the all-vanadium liquid flow battery, the left and right sides of the bottom of the base plate are respectively fixedly connected to the top of the bracket, and the inner wall of the bracket is processed with a through hole.

[0012] The utility model proposes a positive electrode electrolyte filtering device for an all-vanadium liquid flow battery, which has the following beneficial effects: a handle in a control structure drives a screw to rotate, and the rotating screw causes the vertical plate to rotate. Since the top of the vertical plate is slidingly connected to the notch of the straight plate, when the screw rotates, the vertical plate moves to the left, and the moving vertical plate drives the circular ring to move to the left on the surface of the mesh cylinder, so that the circular ring pushes away the precipitates on the surface of the mesh cylinder, thereby improving the protective effect of the positive electrode electrolyte filtering device for the all-vanadium liquid flow battery and ensuring the normal use of the positive electrode electrolyte filtering device for the all-vanadium liquid flow battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model;

[0014] Figure 2 for Figure 1 Schematic diagram of the connection relationship between the central straight tube, net tube and ring;

[0015] Figure 3 for Figure 1 Schematic diagram of the connection relationship between the central straight plate, vertical plate and circular ring;

[0016] Figure 4 for Figure 2 Schematic diagram of the structure of A;

[0017] Figure 5 for Figure 1 Schematic diagram of the connection structure between the middle top cover and the elbow.

[0018] In the figure: 1. All-vanadium liquid flow battery cathode tank, 2. Control structure, 201. Straight plate, 202. Vertical plate, 203. Screw, 204. Handle, 205. Ring, 206. Mesh tube, 3. Support structure, 301. Bottom plate, 302. Bracket, 303. Through hole, 4. Straight tube, 5. Top cover, 6. Bend tube, 7. Vertical plate. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] Example 1:

[0021] See also Figure 1-5 : In this embodiment, a positive electrode electrolyte filtration device for an all-vanadium liquid flow battery includes an all-vanadium liquid flow battery positive electrode tank 1 and a straight pipe 4. The lower right side of the all-vanadium liquid flow battery positive electrode tank 1 is connected to the left side of the straight pipe 4. How to operate and use the all-vanadium liquid flow battery positive electrode tank 1 is already existing technology, and no further explanation will be given. The model is selected according to usage requirements. A top cover 5 is inserted on the top of the all-vanadium liquid flow battery positive electrode tank 1. The top cover 5 can be pulled upward to detach from the top of the all-vanadium liquid flow battery positive electrode tank 1. An annular sealing gasket is provided at the bottom of the top cover 5 to ensure the connection seal. A control structure 2 is connected to the lower right side of the inner wall of the all-vanadium liquid flow battery positive electrode tank 1, and a support structure 3 is connected to the bottom of the all-vanadium liquid flow battery positive electrode tank 1.

[0022] The control structure 2 includes a straight plate 201 and a vertical plate 202. The right side of the straight plate 201 is fixedly connected to the lower right side of the inner wall of the positive electrode tank 1 of the all-vanadium liquid flow battery. The bottom notch of the straight plate 201 is slidably connected to the top of the outer wall of the vertical plate 202. The vertical plate 202 is subjected to force and slides left and right through the bottom notch of the straight plate 201. The inner wall of the vertical plate 202 is threadedly connected to a screw 203. The right side of the screw 203 is fixedly connected to a handle 204. The handle 204 is convenient for driving the screw 203 to rotate. The vertical plate 202 A circular ring 205 is fixed to the bottom, and a mesh tube 206 is attached to the inner wall of the circular ring 205. The aperture of the mesh tube 206 is not sufficient for the passage of precipitates. The right side of the outer wall of the screw 203 is rotatably connected to the lower right side of the positive electrode tank 1 of the all-vanadium redox flow battery. The screw 203 is rotated by the bearing at the lower right side of the positive electrode tank 1 of the all-vanadium redox flow battery. The right side of the inner wall of the mesh tube 206 is fixed to the left side of the outer wall of the straight tube 4. The structure in the control structure 2 is made of stainless steel to avoid corrosion by vanadium liquid.

[0023] By controlling the handle 204 in the structure 2 to rotate the screw 203, the rotating screw 203 causes the vertical plate 202 to rotate. Since the top of the vertical plate 202 is slidably connected to the notch of the straight plate 201, when the screw 203 rotates, the vertical plate 202 moves to the left. The moving vertical plate 202 moves the ring 205 to the left on the surface of the mesh cylinder 206, so that the ring 205 pushes away the precipitates on the surface of the mesh cylinder 206, thereby improving the protective effect of the positive electrode electrolyte filtration device of the all-vanadium redox flow battery and ensuring the normal use of the positive electrode electrolyte filtration device of the all-vanadium redox flow battery.

[0024] The top of the top cover 5 is connected to a curved pipe 6. The support structure 3 includes a bottom plate 301 and a bracket 302. The top of the bottom plate 301 is fixedly connected to the bottom of the positive electrode tank 1 of the all-vanadium liquid flow battery. The left and right sides of the bottom of the bottom plate 301 are respectively fixedly connected to the top of the bracket 302. The inner wall of the bracket 302 is processed with a through hole 303, which facilitates the insertion of a forklift plate.

[0025] Working principle:

[0026] Transportation and installation of cathode electrolyte filtration device for all-vanadium redox flow battery:

[0027] The forklift's plug-in plate can be inserted into the through-hole 303 on the inner wall of the bracket 302, and then the plug-in plate is moved up, so that the bracket 302 cooperates with the through-hole 303 to move the bottom plate 301 and the all-vanadium liquid flow battery positive electrode tank 1. After the position is moved, the bottom of the bracket 302 is aligned with the ground and the plug-in plate is pulled out of the through-hole 303. Then the straight pipe 4 is connected to the circulating delivery pump, and the other end of the circulating delivery pump is connected to the electrode, and the bent pipe 6 is connected to the electrode. The circulating delivery pump works by extracting the internal vanadium liquid through the straight pipe 4 and sending it into the electrode. When the vanadium liquid inside the electrode is filled, it returns to the all-vanadium liquid flow battery positive electrode tank 1 through the bent pipe 6.

[0028] Anti-clogging operation of the cathode electrolyte filtration device of all-vanadium redox flow battery:

[0029] When the connected circulating delivery pump shakes violently, it indicates that the surface of the mesh cylinder 206 is covered with precipitates. At this time, the handle 204 rotates with the screw 203, and the rotating screw 203 rotates the vertical plate 202. Since the top of the vertical plate 202 is slidingly connected to the groove of the straight plate 201, when the screw 203 rotates, the vertical plate 202 moves to the left. The moving vertical plate 202 moves the ring 205 to the left on the surface of the mesh cylinder 206, so that the ring 205 pushes the precipitates on the surface of the mesh cylinder 206 clear. The screw 203 is rotated in the opposite direction to make the vertical plate 202 and the ring 205 return to their original position.

[0030] Example 2:

[0031] See also Figure 1-5 In this embodiment, a positive electrode electrolyte filtration device for an all-vanadium liquid flow battery further includes a vertical plate 7, the bottom of which is fixedly connected to the top right side of the positive electrode tank 1 of the all-vanadium liquid flow battery, and the inner wall of the vertical plate 7 is fixedly connected to the outer wall of the bend 6.

[0032] Working principle:

[0033] Since the curved pipe 6 is located at a high place, the vertical plate 7 can support the curved pipe 6, thereby improving the stability of the curved pipe 6 at a high place.

[0034] While the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A vanadium redox flow battery cathode electrolyte filtration device, comprising an all-vanadium redox flow battery cathode tank (1) and a straight pipe (4), wherein the lower right side of the all-vanadium redox flow battery cathode tank (1) is connected to the left side of the straight pipe (4), characterized in that: A top cover (5) is inserted into the top of the all-vanadium liquid flow battery cathode tank (1), a control structure (2) is connected to the lower right side of the inner wall of the all-vanadium liquid flow battery cathode tank (1), and a support structure (3) is connected to the bottom of the all-vanadium liquid flow battery cathode tank (1).

2. The positive electrode electrolyte filtration device for an all-vanadium redox flow battery according to claim 1, characterized in that: The control structure (2) comprises a straight plate (201) and a vertical plate (202); the right side of the straight plate (201) is fixedly connected to the lower right side of the inner wall of the all-vanadium liquid flow battery positive electrode tank (1); the bottom notch of the straight plate (201) is slidably connected to the top of the outer wall of the vertical plate (202); the inner wall of the vertical plate (202) is threadedly connected to a screw rod (203); the right side of the screw rod (203) is fixedly connected to a handle (204); the bottom of the vertical plate (202) is fixedly connected to a circular ring (205); the inner wall of the circular ring (205) is affixed to a mesh tube (206).

3. The positive electrode electrolyte filtering device of an all-vanadium redox flow battery according to claim 2, characterized in that: The right side of the outer wall of the screw (203) is rotatably connected to the lower right side of the positive electrode tank (1) of the all-vanadium liquid flow battery.

4. The positive electrode electrolyte filtration device for an all-vanadium redox flow battery according to claim 2, characterized in that: The right side of the inner wall of the net cylinder (206) is fixedly connected to the left side of the outer wall of the straight tube (4).

5. The positive electrode electrolyte filtration device for an all-vanadium redox flow battery according to claim 1, characterized in that: The top of the top cover (5) is connected to a curved pipe (6).

6. The positive electrode electrolyte filtration device for an all-vanadium redox flow battery according to claim 1, characterized in that: The support structure (3) comprises a bottom plate (301) and a bracket (302), the top of the bottom plate (301) is fixedly connected to the bottom of the positive electrode tank (1) of the all-vanadium liquid flow battery, the left and right sides of the bottom of the bottom plate (301) are respectively fixedly connected to the top of the bracket (302), and the inner wall of the bracket (302) is processed with a through hole (303).

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