Mixing device for vanadium battery electrolyte production

Abstract

The utility model belongs to the field of mixing devices, and particularly relates to a mixing device for vanadium battery electrolyte production, which comprises a stirring tank, the top end of the stirring tank is fixedly connected with a supporting frame, and a stirring mechanism is arranged on the supporting frame; the stirring mechanism comprises a fluted disc, the fluted disc is fixedly connected to the bottom face of the top end of the supporting frame, a driving rod is arranged at the bottom end of the fluted disc, the top end of the driving rod is fixedly connected with an output shaft of a motor, and one side of the driving rod is rotationally connected with the position, close to the top end, of a connecting rod. The top end of the connecting rod is fixedly connected with a driven gear, the driven gear is meshed with the fluted disc, the bottom end of the connecting rod is provided with a stirring blade, and a connecting assembly is arranged between the connecting rod and the stirring blade; and through the structural design of the stirring mechanism, a connecting rod and a stirring blade can rotate and revolve at the same time, and then the electrolyte can be rapidly and uniformly blended.

Description

Technical Field

[0001] The utility model relates to the field of mixing devices, in particular to a mixing device for producing vanadium battery electrolyte. Background Art

[0002] Vanadium battery is all-vanadium liquid flow battery. All-vanadium liquid flow battery is a redox battery with vanadium as active material in a circulating liquid state. It stores chemical energy in a sulfuric acid electrolyte of vanadium ions of different valence states. The electrolyte is pressed into the battery stack by an external pump. Under the action of mechanical power, it circulates in a closed loop of different liquid storage tanks and half-cells. A proton exchange membrane is used as the diaphragm of the battery pack. The electrolyte solution flows in parallel over the electrode surface and an electrochemical reaction occurs. The current is collected and conducted through the double electrode plates, thereby converting the chemical energy stored in the solution into electrical energy. The electrolyte is an indispensable and important component of the vanadium battery system, and a mixing device needs to be used for mixing during its processing.

[0003] The existing mixing device for vanadium battery electrolyte production can specifically refer to the Chinese utility model patent with application number: CN202121995710.4, which discloses in detail a mixing device for vanadium battery electrolyte production, which relates to the field of battery production technology, including a base mechanism, a mixing tank mechanism and a stirring mechanism, wherein the stirring mechanism includes a shell fixed on the mixing tank, a first motor is installed on the top of the shell, the output shaft of the first motor is inserted into the interior of the shell and connected to a rotating shaft, a stirring frame is installed on the rotating shaft, a movable sleeve is rotatably connected to the rotating shaft, and a stirring blade is installed on the movable sleeve. Compared with the prior art, the utility model effectively avoids the problem of poor stirring effect and large vibration caused by single-direction stirring by setting a stirring mechanism and using a stirring frame and stirring blades with opposite stirring directions to mix the electrolyte. At the same time, the base mechanism is used to support the device, and the first spring, hydraulic shock absorber and second spring are used to reduce the vibration generated when the device is used, which can effectively improve the stability of the device and reduce the noise during use.

[0004] Although the above-mentioned mixing device for vanadium battery electrolyte production can effectively reduce the noise during stirring, the effect on electrolyte stirring is relatively limited and the electrolyte cannot be quickly and evenly mixed; therefore, a mixing device for vanadium battery electrolyte production is proposed to address the above-mentioned problem. Utility Model Content

[0005] In order to make up for the shortcomings of the existing technology, although the existing mixing device for vanadium battery electrolyte production can effectively reduce the noise during stirring, the effect on electrolyte stirring is relatively limited and the electrolyte cannot be quickly and evenly mixed. The utility model proposes a mixing device for vanadium battery electrolyte production.

[0006] The technical solution adopted by the utility model to solve the technical problem is: the utility model is a mixing device for producing vanadium battery electrolyte, comprising a stirring tank; the top of the stirring tank is fixedly connected to a support frame, and the support frame is provided with a stirring mechanism;

[0007] The stirring mechanism includes a toothed disc, which is fixedly connected to the bottom surface of the top end of the support frame, an active rod is provided at the bottom end of the toothed disc, the top end of the active rod is fixedly connected to the output shaft of the motor, one side of the active rod is rotatably connected to a connecting rod at a position close to the top end, a passive gear is fixedly connected to the top end of the connecting rod, the passive gear is meshed with the toothed disc, a stirring blade is provided at the bottom end of the connecting rod, and a connecting component is provided between the connecting rod and the stirring blade.

[0008] Preferably, the connecting component includes an insert block, which is fixedly connected to both sides of the inner wall of the stirring blade near the top position, and the insert block is inserted into the inside of a slot, and the slot is opened on both sides of the bottom end of the connecting rod. A fixing groove is opened on one side of the insert block, and the fixing groove is engaged with the fixed block. The fixed block is sleeved inside a fixed cavity, and the fixed cavity is opened inside the bottom end of the connecting rod. A first spring is arranged inside the fixed cavity, and an extrusion assembly is arranged at the top of the fixed block.

[0009] Preferably, two groups of the first springs are provided, and the sides of the two groups of the first springs close to the fixed block are fixedly connected to the fixed block, and the sides of the first springs away from the fixed block are fixedly connected to the inside of the fixed cavity.

[0010] Preferably, both upper and lower ends of the fixed block close to the first spring are fixedly connected with sliders, the slider is slidably connected inside the slide groove, and the slide groove is provided at upper and lower ends inside the fixed cavity.

[0011] Preferably, the extrusion assembly includes a push groove, which is opened at the top of the fixed block, and the push groove is matched with the bottom end of the push block, the push block is sleeved inside the movable cavity, the movable cavity is opened at the top of the fixed cavity, and a second spring is arranged inside the movable cavity, the bottom end of the second spring is fixedly connected to the push block, and the top end of the second spring is fixedly connected to the top of the inner wall of the movable cavity, a push ring is fixedly connected to one side of the push block, the push ring is annular in design, and an anti-slip sleeve is glued to the outer side of the push ring, and the anti-slip sleeve is made of rubber.

[0012] Preferably, a sliding groove is provided on a side of the top block away from the push ring, a sliding block is slidably connected inside the sliding groove, and the sliding block is fixedly connected to the inner wall of the movable cavity.

[0013] The utility model is beneficial in that:

[0014] 1. The utility model realizes the function of making the connecting rod and the stirring blade rotate and revolve simultaneously through the structural design of the stirring mechanism, thereby quickly and evenly mixing the electrolyte, solving the problem that the existing mixing device for vanadium battery electrolyte production can effectively reduce the noise during stirring, but the effect of stirring the electrolyte is relatively limited and the electrolyte cannot be quickly and evenly mixed, thereby improving the efficiency of mixing the electrolyte;

[0015] 2. The utility model realizes the function of quickly adjusting the stirring blades through the structural design of the connecting components, so that suitable stirring blades can be selected for stirring according to the amount and model of the electrolyte to be prepared. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the front cross-sectional three-dimensional structure of the utility model;

[0019] Figure 3 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0020] Figure 4 It is a schematic diagram of a partial three-dimensional structure of the utility model.

[0021] In the figure: 1, stirring tank; 2, support frame; 3, motor; 41, gear plate; 42, active rod; 43, connecting rod; 44, passive gear; 45, stirring blade; 46, plug block; 47, slot; 48, fixed groove; 49, fixed block; 50, fixed cavity; 51, first spring; 52, slider; 53, slide groove; 54, push groove; 55, push block; 56, movable cavity; 57, second spring; 58, push ring; 59, anti-slip sleeve; 60, sliding block; 61, sliding groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 4 As shown, a mixing device for producing vanadium battery electrolyte comprises a stirring tank 1; a support frame 2 is fixedly connected to the top of the stirring tank 1, and a stirring mechanism is arranged on the support frame 2;

[0024] The stirring mechanism includes a toothed disc 41, which is fixedly connected to the bottom surface of the top of the support frame 2, and an active rod 42 is provided at the bottom end of the toothed disc 41. The top of the active rod 42 is fixedly connected to the output shaft of the motor 3, and one side of the active rod 42 is rotatably connected to a connecting rod 43 near the top. The top of the connecting rod 43 is fixedly connected to a passive gear 44, and the passive gear 44 is meshed with the toothed disc 41. A stirring blade 45 is provided at the bottom end of the connecting rod 43, and a connecting component is provided between the connecting rod 43 and the stirring blade 45.

[0025] During operation, when the electrolyte needs to be stirred, the motor 3 is started, and the motor 3 starts to drive the active rod 42 to rotate, so that the connecting rod 43 rotatably connected to the active rod 42 rotates with the connection point between the active rod 42 and the output shaft of the motor 3 as the center of the circle, and then the passive gear 44 connected to the top of the connecting rod 43 rotates through the cooperation with the toothed disc 41, and drives the connecting rod 43 and the stirring blade 45 to rotate synchronously, so that the stirring blade 45 stirs the electrolyte in the stirring tank 1 from two directions.

[0026] Further, the connecting assembly includes an insert block 46, the insert block 46 is fixedly connected to both sides of the inner wall of the stirring blade 45 near the top position, and the insert block 46 is inserted into the inside of the slot 47, the slot 47 is opened on both sides of the bottom end of the connecting rod 43, one side of the insert block 46 is opened with a fixing groove 48, the fixing groove 48 is engaged with a fixing block 49, the fixing block 49 is sleeved inside the fixing cavity 50, the fixing cavity 50 is opened inside the bottom end of the connecting rod 43, and the inside of the fixing cavity 50 is provided with a first spring 51, and the top of the fixing block 49 is provided with an extrusion assembly; the first spring 51 is provided with two groups, and the sides of the two groups of the first springs 51 close to the fixing block 49 are fixedly connected to the fixing block 49, and the side of the first spring 51 away from the fixing block 49 is fixedly connected to the inside of the fixing cavity 50;

[0027] During operation, when the stirring blade 45 is to be connected to the connecting rod 43, the stirring blade 45 is first aligned with the bottom end of the connecting rod 43, and then the connecting rod 43 is inserted into the inside of the stirring blade 45, so that the plug block 46 is inserted into the inside of the slot 47. When the plug block 46 is inserted into the inside of the slot 47, the top of the plug block 46 squeezes the inclined surface opened on the fixed block 49, so that the fixed block 49 moves toward the inside of the fixed cavity 50 under the action of the squeezing force, and squeezes the first spring 51, so that the first spring 51 is elastically deformed. When the plug block 46 is completely inserted into the inside of the slot 47, the squeezing force of the plug block 46 on the fixed block 49 disappears. At this time, the fixed block 49 returns to its original position under the action of the restoring force of the first spring 51, and is inserted into the inside of the fixing groove 48 and engages with the fixing groove 48, thereby fixing the stirring blade 45 and connecting the stirring blade 45 to the connecting rod 43.

[0028] Furthermore, the upper and lower ends of the fixed block 49 close to the first spring 51 are fixedly connected with sliders 52, and the sliders 52 are slidably connected inside the slide grooves 53, and the slide grooves 53 are provided at the upper and lower ends inside the fixed cavity 50;

[0029] During operation, when the fixed block 49 moves, the slider 52 fixedly connected to the fixed block 49 moves synchronously inside the slide groove 53. The combination of the slider 52 and the slide groove 53 enables the fixed block 49 to move more smoothly inside the fixed cavity 50.

[0030] Further, the extrusion assembly includes a push groove 54, which is provided at the top of the fixed block 49, and the push groove 54 is matched with the bottom end of the push block 55, the push block 55 is sleeved inside the movable cavity 56, the movable cavity 56 is provided at the top of the fixed cavity 50, and a second spring 57 is provided inside the movable cavity 56, the bottom end of the second spring 57 is fixedly connected to the push block 55, and the top end of the second spring 57 is fixedly connected to the top end of the inner wall of the movable cavity 56, and a push ring 58 is fixedly connected to one side of the push ring 55, the push ring 58 is annular, and an anti-slip sleeve 59 is glued to the outside of the push ring 58, and the anti-slip sleeve 59 is made of rubber;

[0031] During operation, when the connection between the stirring blade 45 and the connecting rod 43 is to be released and the stirring blade 45 is to be replaced, the push ring 58 is first pushed downward to drive the fixedly connected top block 55 to move downward synchronously, so that the top block 55 is inserted into the inside of the push groove 54, and the fixed block 49 is pushed to move so that the fixed block 49 enters the inside of the fixed cavity 50 to release the state of engagement with the fixed groove 48. At this time, the stirring blade 45 is pulled away from the connecting rod 43, so that the insert block 46 is removed from the slot 44. The top block 55 and the push ring 58 are then released from the outer side of the connecting rod 43, and the stirring blade 45 is removed from the inner side of the connecting rod 43. The disassembly of the stirring blade 45 is completed. The top block 55 pulls the second spring 57 to produce elastic deformation when moving downward. After the disassembly of the stirring blade 45 is completed, the push ring 58 is released. At this time, the top block 55 and the push ring 58 are restored to their original positions under the action of the restoring force of the second spring 57. The restoring force of the second spring 57 plays an effect of automatically resetting the top block 55 and the push ring 58, thereby avoiding obstruction when the stirring blade 45 is installed next time.

[0032] Furthermore, a sliding groove 61 is formed on one side of the top block 55 away from the push ring 58, and a sliding block 60 is slidably connected inside the sliding groove 61, and the sliding block 60 is fixedly connected to the inner wall of the active cavity 56;

[0033] During operation, when the top block 55 moves inside the active cavity 56, the sliding block 60 also moves inside the sliding groove 61 at the same time. The combination of the sliding block 60 and the sliding groove 61 can make the top block 55 move more smoothly, thereby preventing the top block 55 from being stuck and unable to move due to excessive friction between the top block 55 and the inner wall of the active cavity 56.

[0034] Working principle: when the electrolyte needs to be stirred, the motor 3 is started, and the motor 3 starts to drive the active rod 42 to rotate, so that the connecting rod 43 rotatably connected to the active rod 42 rotates with the connection point between the active rod 42 and the output shaft of the motor 3 as the center of the circle, and then the passive gear 44 connected to the top of the connecting rod 43 rotates through the cooperation with the toothed disc 41, and drives the connecting rod 43 and the stirring blade 45 to rotate synchronously, so that the stirring blade 45 stirs the electrolyte in the stirring tank 1 from two directions.

[0035] When the stirring blade 45 is to be connected to the connecting rod 43, the stirring blade 45 is first aligned with the bottom end of the connecting rod 43, and then the connecting rod 43 is inserted into the inside of the stirring blade 45, so that the plug block 46 is inserted into the inside of the slot 47. When the plug block 46 is inserted into the inside of the slot 47, the top of the plug block 46 squeezes the inclined surface opened on the fixed block 49, so that the fixed block 49 moves toward the inside of the fixed cavity 50 under the action of the squeezing force, and squeezes the first spring 51, so that the first spring 51 is elastically deformed. When the plug block 46 is completely inserted into the inside of the slot 47, the squeezing force of the plug block 46 on the fixed block 49 disappears. At this time, the fixed block 49 returns to its original position under the action of the restoring force of the first spring 51, and is inserted into the inside of the fixing groove 48 and engages with the fixing groove 48 to fix the stirring blade 45, so that the stirring blade 45 and the connecting rod 43 are connected.

[0036] When the fixed block 49 moves, the slider 52 fixedly connected to the fixed block 49 moves synchronously inside the slide groove 53. The combination of the slider 52 and the slide groove 53 enables the fixed block 49 to move more smoothly inside the fixed cavity 50.

[0037] When the connection between the stirring blade 45 and the connecting rod 43 is to be released and the stirring blade 45 is to be replaced, the push ring 58 is first pushed downward to make the push ring 58 drive the fixedly connected top block 55 to move downward synchronously, so that the top block 55 is inserted into the inside of the push groove 54, and the fixed block 49 is pushed to move so that the fixed block 49 enters the inside of the fixed cavity 50 to release the state of being engaged with the fixed groove 48. At this time, the stirring blade 45 is pulled away from the connecting rod 43, so that the insert block 46 is removed from the slot 47. The inner part is disengaged, and the stirring blade 45 can be removed from the outer side of the connecting rod 43, thereby completing the disassembly of the stirring blade 45. The top block 55 pulls the second spring 57 to produce elastic deformation when moving downward. After completing the disassembly of the stirring blade 45, the push ring 58 is loosened. At this time, the top block 55 and the push ring 58 are restored to their original positions under the action of the restoring force of the second spring 57. The restoring force of the second spring 57 plays an effect of automatically resetting the top block 55 and the push ring 58, thereby avoiding obstruction when the stirring blade 45 is installed next time.

[0038] When the top block 55 moves inside the active cavity 56, the sliding block 60 also moves inside the sliding groove 61 at the same time. The combination of the sliding block 60 and the sliding groove 61 makes the top block 55 move more smoothly, avoiding the top block 55 being stuck and unable to move due to excessive friction between the top block 55 and the inner wall of the active cavity 56.

[0039] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, similar improvement, etc. made within the theoretical and principle content of the utility model shall be included in the protection scope of the utility model.

Claims

1. A mixing device for producing vanadium battery electrolyte, characterized in that: It comprises a stirring tank (1); a support frame (2) is fixedly connected to the top of the stirring tank (1), and a stirring mechanism is arranged on the support frame (2); The stirring mechanism comprises a toothed disc (41), the toothed disc (41) being fixedly connected to the bottom surface of the top end of the support frame (2), an active rod (42) being arranged at the bottom end of the toothed disc (41), the top end of the active rod (42) being fixedly connected to the output shaft of the motor (3), one side of the active rod (42) being rotatably connected to a connecting rod (43) at a position close to the top end, a passive gear (44) being fixedly connected to the top end of the connecting rod (43), the passive gear (44) being meshed with the toothed disc (41), a stirring blade (45) being arranged at the bottom end of the connecting rod (43), and a connecting assembly being arranged between the connecting rod (43) and the stirring blade (45).

2. A mixing device for producing vanadium battery electrolyte according to claim 1, characterized in that: The connecting assembly comprises an insert block (46), wherein the insert block (46) is fixedly connected to both sides of the inner wall of the stirring blade (45) near the top position, and the insert block (46) is inserted into the interior of a slot (47), and the slot (47) is provided on both sides of the bottom end of the connecting rod (43), and a fixing groove (48) is provided on one side of the insert block (46), and the fixing groove (48) is engaged with a fixing block (49), and the fixing block (49) is sleeved into the interior of a fixing cavity (50), and the fixing cavity (50) is provided inside the bottom end of the connecting rod (43), and a first spring (51) is provided inside the fixing cavity (50), and an extrusion assembly is provided at the top end of the fixing block (49).

3. A mixing device for producing vanadium battery electrolyte according to claim 2, characterized in that: Two groups of the first springs (51) are provided, and the sides of the two groups of the first springs (51) close to the fixed block (49) are fixedly connected to the fixed block (49), and the sides of the first springs (51) away from the fixed block (49) are fixedly connected to the inside of the fixed cavity (50).

4. A mixing device for producing vanadium battery electrolyte according to claim 3, characterized in that: The upper and lower ends of the fixed block (49) close to the first spring (51) are fixedly connected with a slider (52), and the slider (52) is slidably connected inside a slide groove (53), and the slide groove (53) is opened at the upper and lower ends inside the fixed cavity (50).

5. A mixing device for producing vanadium battery electrolyte according to claim 4, characterized in that: The extrusion assembly comprises a push groove (54), the push groove (54) is arranged at the top end of the fixed block (49), and the push groove (54) is matched with the bottom end of the push block (55), the push block (55) is sleeved inside the movable cavity (56), the movable cavity (56) is arranged at the top end of the fixed cavity (50), and a second spring (57) is arranged inside the movable cavity (56), the bottom end of the second spring (57) is fixedly connected to the push block (55), and the top end of the second spring (57) is fixedly connected to the top end of the inner wall of the movable cavity (56), and a push ring (58) is fixedly connected to one side of the push ring (58), the push ring (58) is designed to be annular, and an anti-slip sleeve (59) is glued to the outer side of the push ring (58), and the anti-slip sleeve (59) is made of rubber material.

6. A mixing device for producing vanadium battery electrolyte according to claim 5, characterized in that: A sliding groove (61) is provided on one side of the top block (55) away from the push ring (58), a sliding block (60) is slidably connected inside the sliding groove (61), and the sliding block (60) is fixedly connected to the inner wall of the active cavity (56).

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