A kind of all-vanadium liquid flow energy storage equipment and its processing tooling

Abstract

The invention discloses an all-vanadium liquid flow energy storage device and a processing tool thereof, comprising a support frame, which is a rectangular frame, a first electrolyte storage tank being arranged on the support frame, a second electrolyte storage tank being arranged on the support frame, the first electrolyte storage tank and the second electrolyte storage tank being arranged in a concentric ring shape, and a liquid flow battery stack structure being arranged between the first electrolyte storage tank and the second electrolyte storage tank; the invention relates to the technical field of energy storage equipment, the all-vanadium liquid flow energy storage device and the processing tool thereof, aiming at the shortcomings of the current liquid flow battery stack stacking method, adopt an integrally designed battery stack structure, support and install the liquid flow battery stack structure thereon through a concentric ring frame formed by the first electrolyte storage tank and the second electrolyte storage tank, the liquid flow battery stack structure adopts a fan-shaped partitioning form to install multiple groups of single battery groups, the structure is compact and has higher integrity, and at the same time, the single battery groups do not need to be stacked during processing, and the operation is convenient and fast.

Description

Technical Field

[0001] The invention relates to the technical field of energy storage equipment, in particular to an all-vanadium liquid flow energy storage equipment and a processing tool thereof. Background Art

[0002] All-vanadium liquid flow batteries are the most technologically mature and safest liquid flow batteries at this stage. Compared with lithium batteries and lead-acid batteries, all-vanadium liquid flow batteries have better safety characteristics, flexible expansion, longer life cycle and greater durability, and have become the main development direction of liquid flow batteries.

[0003] The all-vanadium liquid flow battery uses the change in the valence of vanadium ions to achieve the conversion between electrical energy and chemical energy. The all-vanadium liquid flow battery is mainly composed of three parts: the stack structure, the electrolyte circulation unit and the management and control unit.

[0004] In the application process of all-vanadium liquid flow batteries, the battery stack structure realizes the charging and discharging process of the energy storage device by realizing the oxidation and reduction of the positive and negative electrolytes. Therefore, it is the core module of the all-vanadium liquid flow battery.

[0005] At present, the stack structure of all-vanadium liquid flow batteries is mainly composed of end plates, current collecting plates and multiple single cell assemblies. The single cell assembly is composed of bipolar plates, electrodes, ion membranes and external seals. In order to ensure the power density of the liquid flow battery stack, it is necessary to stack a lot of single cell groups, and then charge and discharge through the current collecting effect of the current collecting plates. However, this stacked liquid flow battery stack structure, in order to store energy density, not only increases the overall structural weight of the battery stack through the stacked single cell groups, but also in order to keep the single cell groups tightly arranged, it is necessary to pull the end plates to make the single cell groups tightly arranged. Therefore, when the single cell group is damaged and needs to be disassembled, the end plates also need to be disassembled to separate the single cell group, so the operation is very cumbersome.

[0006] At the same time, in order to contain the electrolyte, the current liquid flow battery often needs to be equipped with a tank containing positive electrolyte and negative electrolyte, and cooperate with the circulation system to control the flow of electrolyte to provide electrolyte for the reaction to the battery stack. However, the structure of this liquid flow battery requires the management and maintenance of the electrolyte storage tank. The storage tank and the battery stack are mostly controlled separately. Not only is the structural integration poor and not conducive to transportation and use, but the overall volume of the all-vanadium liquid flow battery cannot be reduced, which limits the application scenarios of the all-vanadium liquid flow battery.

[0007] As for the stack structure of the above-mentioned all-vanadium liquid flow battery, the current all-vanadium liquid flow energy storage equipment needs to stack and combine the single battery groups of the all-vanadium liquid flow battery during production. Therefore, during the installation process, the stack combination of the all-vanadium liquid flow battery needs to use a high-precision robot to composite and assemble multiple single batteries together, and then assemble them through the pulling action of bolts. During the processing, not only is it necessary to ensure the high-precision overlap of the battery arrangement, but the stacking process also relies on the cooperation of multiple robots. Not only is the processing efficiency limited, but the extra equipment also causes heavy management and maintenance work. In view of this, in-depth research was conducted on the above-mentioned problems, which led to the creation of this case. Summary of the invention

[0008] In view of the deficiencies of the prior art, the present invention provides an all-vanadium liquid flow energy storage device and a processing tooling thereof, which solves the existing background technology problems.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions: an all-vanadium liquid flow energy storage device, comprising a support frame, the support frame is a rectangular frame, a first electrolyte storage tank is arranged on the support frame, a second electrolyte storage tank is arranged on the support frame, the first electrolyte storage tank and the second electrolyte storage tank are arranged in a concentric ring, and a liquid flow stack structure is arranged between the first electrolyte storage tank and the second electrolyte storage tank;

[0010] The liquid flow stack structure is connected to a first electrolyte storage tank and a second electrolyte storage tank through a pair of circulation control systems, respectively. The first electrolyte storage tank or the second electrolyte storage tank stores positive electrode electrolyte or negative electrode electrolyte, and the two are not connected.

[0011] The liquid flow battery stack structure comprises a rolling frame, a rotating seat is arranged on the support frame, the rolling frame is mounted on the rotating seat, the rolling frame is divided into a plurality of independent installation positions, the plurality of installation positions are a plurality of independent sectors, a plurality of single battery groups are arranged in the installation positions, and a graduated rotating assembly is arranged on the support frame;

[0012] The first electrolyte storage tank and the second electrolyte storage tank are fixedly arranged, the indexing rotation assembly is connected to the rotating seat, the indexing rotation assembly controls the rotating seat to drive the rolling frame to rotate, and the rolling frame is used to install multiple single battery groups;

[0013] The first electrolyte storage tank is a cylindrical storage tank, the second electrolyte storage tank is a cavity shell with a missing arc ring structure, and the missing arc sector of the second electrolyte storage tank has the same angle as the sector of a single installation position;

[0014] The installation position is vertically divided into a plurality of partitions by a plurality of partitions, a plurality of the single battery packs are inserted into the plurality of the partitions, and a plurality of the partitions are bipolar plates;

[0015] The single cell group is composed of a pair of sealing frames, a pair of electrodes and an ion exchange membrane, and the pair of electrodes are correspondingly engraved with electrolyte flow channels;

[0016] The rolling frame is provided with a shunt flow channel connected to the electrolyte flow channel of the electrode and the circulation control system respectively, and the shunt flow channel supplies positive electrode electrolyte and negative electrode electrolyte to a pair of positive and negative electrodes respectively according to the positive and negative polarities of the electrolyte;

[0017] A pair of current collecting plates is arranged on the support frame, and the pair of current collecting plates are respectively connected to the two poles of the bipolar plate.

[0018] The installation position is a rectangular groove, a plurality of partitions in the installation position are in contact with the side surfaces of a plurality of single battery groups, a plurality of partitions are provided with shunt liquid inlets, and the shunt liquid inlets are connected to the electrolyte flow channel.

[0019] The ion exchange membrane is assembled between a pair of electrodes, a pair of sealing frames are wrapped around the outside of the pair of electrodes, and the pair of electrodes are respectively in contact with the separators on both sides.

[0020] The indexing rotation assembly includes an indexing motor, which is mounted on a support frame. A indexing turntable is connected to the lower portion of the mounting position, and an indexing gear is integrally provided below the indexing turntable. A driving gear is provided on the driving end of the indexing motor, and the driving gear is meshed with the indexing gear.

[0021] A pair of circulation control systems are independently connected to the first electrolyte storage tank or the second electrolyte storage tank, respectively, and the pair of circulation control systems do not interfere with each other. The circulation control system includes a circulation control pump, which is installed on a support frame, and the circulation control pump is connected to a liquid inlet pipe connected to the first electrolyte storage tank or the second electrolyte storage tank, and the circulation control pump is connected to a liquid outlet pipe;

[0022] The liquid outlet pipe is connected with a flow divider, the flow divider is connected with the rolling frame, and the support frame is provided with a flow confluence corresponding to the flow divider, the flow confluence is connected with the rolling frame;

[0023] A pair of butt-joint ring pipes are arranged on both sides of the rolling frame. The butt-joint ring pipes connected to the flow diverter are connected to the liquid inlet of the diverter flow channel, and the butt-joint ring pipes connected to the flow converging device are connected to the liquid outlet of the diverter flow channel.

[0024] The flow divider is a disc cavity structure, the outer circumference of the flow divider is star-shaped and has a plurality of docking ports, the flow divider is provided with a master control pipe, the master control pipe is connected to the liquid outlet pipe, the docking ring pipe is provided with a plurality of joints corresponding to the number of mounting positions, the plurality of joints are connected to the plurality of docking ports, the number of the flow diversion channels corresponds to the number of the plurality of mounting positions, the flow diversion channels corresponding to the mounting positions are divided into a positive electrode flow diversion channel and a negative electrode flow diversion channel, and further the positive electrode flow diversion channel and the negative electrode flow diversion channel are both divided into an upstream flow channel and a downstream flow channel;

[0025] The concentrator has the same structure as the diverter. The diverter is connected to the upstream flow channel through a docking ring pipe, and one side of the diverter is connected to a circulation control pump different from the side of the concentrator. The concentrator is connected to the downstream flow channel.

[0026] A processing tool for an all-vanadium liquid flow energy storage device comprises an assembly seat, the assembly seat is a rectangular frame, a rotating frame is arranged on the assembly seat, an assembly tool is arranged on one side of the rotating frame, and the rolling frame is assembled on the rotating frame;

[0027] The assembly tool comprises a guide rail frame, the guide rail frame is mounted on one side of the assembly seat, a sliding seat is arranged on the guide rail frame, a track is arranged on the sliding seat to cooperate with the guide rail frame, and a telescopic plug-in component is arranged on the guide rail frame to be linked with the sliding seat;

[0028] The telescopic plug-in assembly includes a fixed groove, the guide rail frame is provided with a fixed groove, a telescopic push rod is installed in the fixed groove, a guide rail seat is connected to the telescopic end of the telescopic push rod, the guide rail seat matches the fixed groove, and the guide rail seat is connected to the bottom surface of the sliding seat;

[0029] The sliding seat is provided with a push structure, and the sliding seat is provided with a plurality of slots, the push structure corresponds to the plurality of slots, a plurality of single battery packs are placed in the plurality of slots, and the push structure is used to push the single battery pack to move;

[0030] A rotation control assembly is connected between the rotating frame and the assembly seat to control the rotation of the rotating frame;

[0031] The rotation control assembly comprises a rotation gear, and the rotation gear is installed below the rotating frame. A gear set is arranged on the assembly seat and is linked with the rotation gear.

[0032] The bottom surface of the rolling frame is provided with a plurality of back-pull threaded holes arranged in a ring array, and the rotating frame is provided with a plurality of movable back-pull screw rods corresponding to the plurality of back-pull threaded holes.

[0033] A pair of sliding blocks are symmetrically arranged on the bottom surface of the sliding seat, and a pair of sliding rails matching the pair of sliding blocks are arranged on the guide rail frame.

[0034] The pushing structure includes a pushing seat, which is installed on one side of the sliding seat. A pushing rod is arranged on the pushing seat. A pushing plate is arranged at the telescopic end of the pushing rod. A plurality of pushing blocks are arranged on the pushing plate. The plurality of pushing blocks match the width of a plurality of slots.

[0035] Beneficial Effects

[0036] The present invention provides an all-vanadium liquid flow energy storage device and its processing tooling. It has the following beneficial effects: the all-vanadium liquid flow energy storage device and its processing tooling adopt an integrally designed stack structure to address the shortcomings of the current liquid flow battery stack stacking method, and the liquid flow stack structure on it is supported and installed by a concentric annular frame formed by a first electrolyte storage tank and a second electrolyte storage tank. The liquid flow stack structure adopts a fan-shaped partitioning form to install multiple groups of single battery groups, which has a compact structure and higher integrity. At the same time, the single battery groups do not need to be stacked during processing, and the operation is convenient and fast. It has the following specific advantages;

[0037] 1. The integrity of the flow battery is improved by arranging the first electrolyte storage tank and the second electrolyte storage tank in a concentric ring shape. The two together constitute the supporting structure of the battery. The first electrolyte storage tank and the second electrolyte storage tank are used to install the flow battery stack structure in the middle, which plays a supporting role and has a compact structure. The appearance structure of the energy storage device is unified and has good structural strength;

[0038] 2. The liquid flow battery stack structure is divided into different sectors in a ring array. The installation positions on the sectors are used to assemble multiple groups of single battery packs, which not only improves the energy density of the battery, but also divides the battery pack into regions by the design of the sector structure, so that the equipment can be operated in different regions. When a single sector is not working, the electrolyte does not need to be injected into the sector;

[0039] 3. An indexing rotation assembly is provided in the liquid flow battery stack structure, and the indexing rotation assembly can be used to control the rotation of the rolling frame according to the angle of the sector, so that the sector where the battery group to be repaired is located corresponds to the arc-deficient area of ​​the second electrolyte storage tank. At the same time, the single battery group is installed on the rolling frame using a plug-in structure, which is convenient for subsequent disassembly, maintenance and use of the single battery group;

[0040] 4. A circulation control system is provided between the liquid flow battery stack structure and the first electrolyte storage tank and the second electrolyte storage tank. The circulation control system provides power for the circulation of the electrolyte. Under the action of the diverter and the concentrator, the circulation control system can independently supply electrolyte to different sectors, making it more flexible to use.

[0041] 5. Due to the installation structure and composition of the single cell group of the above-mentioned liquid flow battery stack, during the assembly process of the battery stack, there is no need to stack and pull the single cell groups. Instead, the liquid flow battery stack is fixed in a fixed manner, which greatly saves time. At the same time, through the overall assembly of the processing tooling, multiple single cell groups are installed together on one side of the installation position of the battery stack, which further simplifies the operation process, simplifies the equipment composition, and has a higher degree of assembly uniformity, thereby ensuring the structural consistency and matching precision of the liquid flow battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a first stereoscopic structural schematic diagram of an all-vanadium liquid flow energy storage device described in the present invention.

[0043] Figure 2 This is a schematic diagram of the main structure of an all-vanadium liquid flow energy storage device described in the present invention.

[0044] Figure 3 This is a second stereoscopic structural schematic diagram of an all-vanadium liquid flow energy storage device described in the present invention.

[0045] Figure 4 This is a third stereoscopic structural schematic diagram of an all-vanadium liquid flow energy storage device described in the present invention.

[0046] Figure 5 This is a fourth three-dimensional structural schematic diagram of an all-vanadium liquid flow energy storage device described in the present invention.

[0047] Figure 6 This is a schematic diagram of the electrolyte flow channel of the all-vanadium liquid flow energy storage device described in the present invention.

[0048] Figure 7 This is a schematic diagram of the structure of a single battery pack of an all-vanadium liquid flow energy storage device described in the present invention.

[0049] Figure 8 This is a fifth stereoscopic structural schematic diagram of an all-vanadium liquid flow energy storage device described in the present invention.

[0050] Fig. 9 This is a sixth stereoscopic structural schematic diagram of an all-vanadium liquid flow energy storage device described in the present invention.

[0051] Fig.10 This is a seventh three-dimensional structural schematic diagram of an all-vanadium liquid flow energy storage device described in the present invention.

[0052] Fig.11 This is a first three-dimensional structural schematic diagram of a processing tooling for an all-vanadium liquid flow energy storage device according to the present invention.

[0053] Fig.12 This is a second three-dimensional structural schematic diagram of a processing tool for an all-vanadium liquid flow energy storage device described in the present invention.

[0054] Fig.13 This is a third stereoscopic structural schematic diagram of a processing tooling for an all-vanadium liquid flow energy storage device according to the present invention.

[0055] In the figure: 1. All-vanadium liquid flow energy storage device; 11. Support frame; 12. First electrolyte storage tank; 13. Second electrolyte storage tank; 14. Liquid flow stack structure; 15. Circulation control system; 141. Roll frame; 142. Rotating seat; 143. Indexing rotation assembly; 144. Partition plate; 145. Blocking plate; 146. Mounting position; 147. Diverter channel; 148. Electrolyte channel; 149. Collector plate; 151. Circulation control pump; 152. Liquid inlet pipe; 153. Liquid outlet pipe; 154. Diverter; 155. Converger; 156. Docking ring pipe; 157. Docking port; 158. Reflux pipe; 1431. Indexing Motor; 1432, indexing turntable; 1433, indexing gear; 1434, driving gear; 2, single battery pack; 21, sealing frame; 22, electrode; 23, ion exchange membrane; 3, processing tooling; 31, assembly seat; 32, rotating frame; 33, guide frame; 34, sliding seat; 35, telescopic plug-in assembly; 36, push structure; 37, rotation control assembly; 341, slot; 342, sliding block; 351, fixed slot; 352, telescopic push rod; 353, guide seat; 361, push seat; 362, push rod; 363, push plate; 364, push block; 371, rotating gear; 372, gear set. DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0057] See also Figure 1-10 The present invention provides an implementation scheme 1: In the application process of modern all-vanadium liquid flow batteries, the battery stack composed of a multi-layer single battery group 2 is the core component of the battery. The single battery group 2 is mainly composed of an ion exchange membrane 23, an electrode 22, a sealing frame 21 and a bipolar plate. However, in the application process, the battery of this battery stack structure also needs to be equipped with an electrolyte circulation control system 15 and an electrolyte storage tank. The composition of the above-mentioned liquid flow battery unit is divided into several parts. During use, not only is the composition complex but also the structure is heavy. In addition, the screw needs to be removed during maintenance, which is not convenient for replacement and maintenance.

[0058] According to the instruction manual Figure 1 -Attached Figure 3It can be seen that the present application discloses an all-vanadium liquid flow energy storage device 1, including a support frame 11, specifically a rectangular frame, the support frame 11 as an external frame, which plays a role in wrapping the liquid flow battery in the support frame 11, so that the liquid flow battery is used as a unit, which is convenient for lifting and transportation, and then a first electrolyte storage tank 12 and a second electrolyte storage tank 13 are arranged on the support frame 11, which are used to store anolyte and cathode electrolyte respectively, and the first electrolyte storage tank 12 and the second electrolyte storage tank 13 are arranged in a concentric ring shape, and a liquid flow stack structure 14 is arranged between the first electrolyte storage tank 12 and the second electrolyte storage tank, and the liquid flow stack structure 14 is used as the reaction core of the all-vanadium liquid flow battery;

[0059] According to the instruction manual Figure 1 -Attached Figure 4 It can be known that the liquid flow stack structure 14 is connected to the first electrolyte storage tank 12 and the second electrolyte storage tank 13 through a pair of circulation control systems 15, respectively. The positive electrode electrolyte or the negative electrode electrolyte is stored in the first electrolyte storage tank 12 or the second electrolyte storage tank 13, and the two are not connected. In the specific implementation process, taking the first electrolyte storage tank 12 storing the anolyte and the second electrolyte storage tank 13 storing the catholyte as an example, the anolyte is extracted from the first electrolyte storage tank 12 and passed to the anode reaction side of the liquid flow stack structure 14 through the circulation control system 15, and the cathode electrolyte is extracted from the second electrolyte storage tank 13 and passed to the cathode reaction side of the liquid flow electrolyte structure by another circulation control system 15, and the charging and discharging is realized by the ion exchange in the positive and negative electrolytes of the liquid flow electrolyte structure;

[0060] According to the instruction manual Figure 1 -Attached Figure 4 It can be seen that the above-mentioned liquid flow battery stack structure 14 includes a rolling frame 141, a rotating seat 142 is arranged on the support frame 11, the rolling frame 141 is assembled on the rotating seat 142, the rolling frame 141 is divided into a plurality of independent mounting positions 146, the plurality of mounting positions 146 are a plurality of independent sectors, a plurality of single battery groups 2 are arranged in the mounting positions 146, and a graduated rotating assembly 143 is arranged on the support frame 11;

[0061] In the specific implementation process, the first electrolyte storage tank 12 and the second electrolyte storage tank 13 are fixedly arranged, and the indexing rotation assembly 143 is connected to the rotating seat 142. The rotating seat 142 is a ring structure. The indexing rotation assembly 143 controls the rotating seat 142 to drive the rolling frame to rotate, so that the rolling frame 141 can be rotated according to demand, and the several mounting positions 146 on the rolling frame 141 are used as several independent sectors to independently install multiple single battery groups 2. The multiple single battery groups 2 are installed through the rolling frame 141, and the single battery groups 2 are partitioned and managed for easy inspection and maintenance;

[0062] According to the instruction manual Figure 1 -Attached Figure 4 It can be known that the first electrolyte storage tank 12 is a cylindrical storage tank, and the second electrolyte storage tank 13 is a cavity shell of a missing arc annular structure. The missing arc sector of the second electrolyte storage tank 13 has the same angle as the sector of a single mounting position 146. In this way, during the disassembly and overhaul process, the rolling frame 141 can be driven to rotate by the rolling frame 141, so that the mounting position 146 to be overhauled is rotated to the missing arc sector of the second electrolyte tank, and the mounting position 146 is replaced by the sector of the second electrolyte tank. A blocking plate 145 is provided on the outer side of the mounting position 146 of the corresponding sector. The blocking plate 145 blocks the opening side of the sector of the mounting position 146 by means of plug-in limiting to ensure the sealing during the operation of the equipment;

[0063] According to the instruction manual Figure 5 -Attached Figure 6 It can be seen that a plurality of partitions 144 are vertically separated in the installation position 146 to form a plurality of compartments, a plurality of single battery groups 2 are inserted in the plurality of compartments, a plurality of partitions 144 are bipolar plates, the single battery group 2 is assembled in the compartment and on both sides of the partitions 144, the partitions 144 are bipolar plates, the electrodes 22 of the single battery group 2 are in contact with the bipolar plates, a pair of current collecting plates 149 are arranged on the support frame 11, the pair of current collecting plates 149 are respectively connected to the two poles of the bipolar plates, the charges generated by the reaction of the single battery group 2 are conducted through the bipolar plates and then collected through the current collecting plates 149, the pair of current collecting plates 149 are respectively a positive current collecting plate 149 and a negative current collecting plate 149, and are electrically connected to the outside through a pair of current collecting plates 149 to realize charging and discharging, the single battery group 2 and the compartment adopt a plug-in structure, which is convenient for disassembling and replacing the single battery group 2;

[0064] According to the instruction manual Figure 6 It can be seen that in order to circulate the cathode electrolyte and the anode electrolyte, a shunt flow channel 147 is provided on the rolling frame 141 and is connected to the electrolyte flow channel 148 of the electrode 22 and the circulation control system 15 respectively. The shunt flow channel 147 supplies the positive electrode electrolyte and the negative electrode electrolyte to a pair of positive and negative electrodes 22 respectively according to the positive and negative polarities of the electrolyte.

[0065] In the specific implementation process, the above-mentioned installation position 146 is a groove of a rectangular structure. Several partitions 144 in the installation position 146 are in contact with the sides of several single battery groups 2. Several partitions are provided with shunt inlets, which are connected to the electrolyte flow channel 148. The shunt channel is connected to the liquid outlet end of the circulation control system 15. The shunt channel is connected to the circulation control system 15. Under the shunt effect of the shunt channel, the electrolyte enters the partition from the shunt inlet, and then passes into the single battery group 2 through the shunt inlet, and then flows into the electrolyte channel of the electrode 22. While the electrolyte channel plays a circulation role, the circulation and contact area of ​​the electrolyte are increased, and the charging and discharging operations are completed faster and more efficiently.

[0066] According to the instruction manual Figure 7 It can be seen that the above-mentioned single cell group 2 is composed of a pair of sealing frames 21, a pair of electrodes 22 and an ion exchange membrane 23, and the pair of electrodes 22 are correspondingly engraved with electrolyte flow channels 148;

[0067] During the specific implementation process, the above-mentioned ion exchange membrane 23 is assembled between a pair of electrodes 22, and a pair of sealing frames 21 are wrapped around the outside of the pair of electrodes 22. The sealing frames 21 wrap the electrodes 22 and the ion exchange membrane 23, and the sealing frames 21 are connected to the shunt inlet. The electrolyte enters the sealing frame 21 from the shunt inlet and then flows into the electrolyte flow channel 148 of the electrode 22, which plays a guiding role for the electrolyte. The electrolytes on both sides of the ion exchange membrane 23 undergo ion exchange, thereby realizing the charging and discharging of the single battery group 2.

[0068] According to the instruction manual Figure 8 It can be known that the above-mentioned indexing rotation assembly 143 includes an indexing motor 1431, which is installed on the support frame 11. The lower part of the mounting position 146 is connected to a indexing turntable 1432, and a indexing gear 1433 is integrally arranged below the indexing turntable 1432. A driving gear 1434 is arranged on the driving end of the indexing motor 1431, and the driving gear 1434 is meshed with the indexing gear 1433.

[0069] According to the instruction manual Fig. 9 -Attached Fig.10It can be seen that a pair of circulation control systems 15 are independently connected to the first electrolyte storage tank 12 or the second electrolyte storage tank 13 respectively, and the pair of circulation control systems 15 do not interfere with each other. The specific circulation control system 15 includes a circulation control pump 151, and the circulation control pump 151 is installed on the support frame 11. The circulation control pump 151 is connected to a liquid inlet pipe 152 connected to the first electrolyte storage tank 12 or the second electrolyte storage tank 13, and the circulation control pump 151 is connected to a liquid outlet pipe 153, and the liquid outlet pipe 153 is connected to a diverter 154, and the diverter 154 is connected to the rolling frame 141. A confluence 155 is provided on the support frame 11 corresponding to the diverter 154, and the confluence 155 is connected to the rolling frame 141.

[0070] In the specific implementation process, the circulation control pump 151 is used as the main power device for circulating the electrolyte. Under the action of the circulation control pump 151, the electrolyte is drawn out from the liquid inlet pipe 152 and pumped into the diverter 154. The diverter 154 is used to divert the electrolyte and cooperate with the diverter channel 147 to supply the electrolyte to the single battery group 2 in the installation position 146. After the electrolyte enters the installation position 146 and completes the reaction, the diverter channel 147 on the other side of the rolling frame 141 is used to divert the electrolyte to the single battery group 2 in the installation position 146. The electrolyte flows into the flow channel 147 for confluence, flows into the flow confluence device 155, and returns to the first electrolyte storage tank 12 or the second electrolyte storage tank 13 to complete the circulation process of the electrolyte. In order to better realize the circulation of the electrolyte, a pair of docking ring pipes 156 are provided on both sides of the rolling frame 141. The docking ring pipe 156 connected to the flow diverter 154 is connected to the liquid inlet of the diverting flow channel 147, and the docking ring pipe 156 connected to the flow confluence device 155 is connected to the liquid outlet of the diverting flow channel 147.

[0071] According to the instruction manual 1- Figure 4 And attached Fig.10 It can be seen that the above-mentioned diverter 154 is a disc cavity structure, and the outer circumference of the diverter 154 is arranged in a star-shaped ring with a plurality of docking ports 157. The diverter 154 is provided with a main control pipe, which is connected to the liquid outlet pipe 153. The docking ring pipe 156 is provided with a plurality of joints corresponding to the number of mounting positions 146, and the plurality of joints are connected to the plurality of docking ports 157. The number of diverter channels 147 corresponds to the number of mounting positions 146. The diverter channels 147 corresponding to the mounting positions 146 are divided into a positive diverter channel 147 and a negative diverter channel 147. Further, the positive diverter channel 147 and the negative diverter channel 147 are both divided into an upstream channel and a downstream channel.

[0072] In the specific implementation process, in order to improve the versatility of the equipment and the interchangeability between parts, the structure of the concentrator 155 and the diverter 154 is the same, but they are connected to the upper and lower liquid ends of the electrolyte circulation through different docking ring tubes 156, wherein the diverter 154 is connected to the upstream flow channel through the docking ring tube 156, and the joint on the docking ring tube 156 and the docking port 157 of the diverter 154 form a threaded connection structure, which is convenient for removing and replacing the joint of the diverter 154, and one side of the diverter 154 is connected to the circulation control pump 151, which is different from the side of the concentrator 155. The concentrator 155 is connected to the downstream flow channel through the docking ring tube 156, and then the concentrator 155 is connected to the first electrolyte storage tank 12 or the second electrolyte storage tank 13 through the reflux pipe 158.

[0073] In order to seal the electrolyte during maintenance of a single sector, the flow of the sector is cut off and a valve is set at the connection head of the diverter 154 to switch and seal the electrolyte flow path. The flow of the electrolyte in a single sector can be controlled, which is convenient for maintenance and does not affect the working status of the single battery group 2 in other sectors.

[0074] Example 2: In the production process of the above-mentioned all-vanadium liquid flow energy storage device 1, unlike the single battery group 2 that is tightly arranged and pulled together, the present application adopts a plug-in installation method to install the liquid flow battery single battery group 2. However, in order to increase the input and output power of the battery group and increase the number of single battery groups 2, a multi-faceted installation storage structure arranged in a ring array is adopted in the present application.

[0075] See also Figure 11-13 The present invention provides an implementation scheme 2: according to the attached description Figure 11-13 It can be known that the present application also discloses a processing tool 3 of an all-vanadium liquid flow energy storage device, wherein the specific assembly seat 31 is the supporting body of the tool, the assembly seat 31 is a frame of a rectangular structure, a rotating frame 32 is arranged on the assembly seat 31, and the rotating frame 32 can be rotated on the assembly seat 31 by rotating the frame 32, and then the rotating frame 32 plays the role of installing and supporting the rolling frame 141 as the liquid flow battery frame, and then an assembly tool is arranged on one side of the rotating frame 32, and the single battery group 2 is assembled to the rolling frame 141 by the assembly tool to complete the assembly, and the bottom surface of the rolling frame 141 is arranged in a ring array with a plurality of reverse-pull threaded holes, and a plurality of movable reverse-pull screws are arranged on the rotating frame 32 corresponding to the plurality of reverse-pull threaded holes, and the plurality of movable reverse-pull screws are correspondingly threadedly connected in the plurality of reverse-pull threaded holes to realize the reverse-pull effect on the rolling frame 141;

[0076] Specifically, according to the instructions Figure 11-13The above-mentioned assembly tooling includes a guide rail frame 33, which is installed on one side of the assembly seat 31. A sliding seat 34 is arranged on the guide rail frame 33, and a track is arranged on the sliding seat 34 to cooperate with the guide rail frame 33. A telescopic plug-in component 35 is arranged on the guide rail frame 33 to link with the sliding seat 34, and the sliding seat 34 is supported by the guide rail frame 33, and it plays a role in limiting the sliding seat 34, so that the sliding seat 34 can only move along the track structure on the guide rail frame 33. A pair of sliding blocks 342 are symmetrically arranged on the bottom surface of the sliding seat 34, and a pair of sliding rails are arranged on the guide rail frame 33 to match the pair of sliding blocks 342, which play a stabilizing role in the movement of the sliding seat 34, and then a telescopic plug-in component 35 is arranged on the sliding seat 34, and the telescopic plug-in component 35 is used to control the movement direction and distance of the sliding seat 34, so that the sliding seat 34 contacts the side of the rolling frame 141;

[0077] Specifically, the telescopic plug-in assembly 35 comprises a fixing slot 351. The guide rail frame 33 is provided with a fixing slot 351. A telescopic push rod 352 is installed in the fixing slot 351. The fixing slot 351 is axially parallel to the movement direction of the sliding seat 34. The telescopic push rod 352 is controlled to move telescopically, and then a guide rail seat 353 is connected to the telescopic end of the telescopic push rod 352. The guide rail seat 353 is connected to the bottom surface of the sliding seat 34. The movement of the guide rail seat 353 drives the sliding seat 34 to move, and then drives the push structure 36 placed on the sliding seat 34 to move. The guide rail seat 353 matches the fixing slot 351 to play a stabilizing role, making the movement of the sliding seat 34 more stable. When in use, the sliding seat 34 is first pushed to one side of the assembly seat 31 by the telescopic plug-in assembly 35, so that the sliding block 342 corresponds to the side of the mounting position 146 of the rolling frame 141.

[0078] When assembling the single battery group 2, the single battery group 2 needs to be arranged in a matrix structure to facilitate installation. A push structure 36 is provided on the sliding seat 34. The sliding seat 34 is provided with a plurality of slots 341. The push structure 36 corresponds to the plurality of slots 341. A plurality of single battery groups 2 are placed in the plurality of slots 341. The push structure 36 is used to push the single battery group 2 to move. The push structure 36 pushes the plurality of single battery groups 2 out of the slots 341 synchronously, so as to enter the installation position 146 of the rolling frame 141.

[0079] A rotation control assembly 37 is connected between the rotating frame 32 and the assembly seat 31 to control the rotation of the rotating frame 32. After the single battery pack 2 in the installation position 146 on one side of the rolling frame 141 is assembled, the rotating frame 32 is rotated to the installation position 146 on the other side by controlling the rotation control assembly 37.

[0080] Specifically, the rotation control assembly 37 includes a rotation gear 371 . The rotation gear 371 is installed below the rotating frame 32 . A gear set 372 is provided on the assembly seat 31 to be linked with the rotation gear 371 .

[0081] In the specific implementation process, the gear set 372 is controlled to rotate so that the gear set 372 is engaged with the rotating gear 371, and then the rotating frame 32 is driven to rotate horizontally on the assembly seat 31 under the driving action of the rotating gear 371, so as to adjust the front side of the different installation positions 146 of the rolling frame 141 to correspond to the sliding seat 34.

[0082] According to the instruction manual Fig.13 It can be known that the push structure 36 includes a push seat 361, which is installed on one side of the sliding seat 34, and a push rod 362 is provided on the push seat 361, and a push plate 363 is provided at the telescopic end of the push rod 362, and a plurality of push blocks 364 are provided on the push plate 363, and the plurality of push blocks 364 match the width of the plurality of slots 341;

[0083] In the specific implementation process, the push seat 361 is fixedly connected to the sliding seat 34, which plays a supporting role for the push rod 362, and then the push plate 363 on the telescopic end of the push rod 362 and the several push blocks 364 arranged in a comb shape match the several slots 341. When the sliding seat 34 corresponds to the side of the installation position 146, the push rod 362 drives the push plate 363 and the several push blocks 364 to push out the single battery group 2 placed in the slot 341, so that the single battery group 2 is pushed into different compartments of the installation position 146.

[0084] From the above, it can be generally known that the all-vanadium liquid flow energy storage device 1 and its processing tooling 3, in view of the shortcomings of the current liquid flow battery stacking method, adopt an integrally designed stack structure, and support and install the liquid flow battery stack structure 14 thereon through a concentric annular frame formed by the first electrolyte storage tank 12 and the second electrolyte storage tank 13. The liquid flow battery stack structure 14 adopts a fan-shaped partitioning form to install multiple groups of single battery groups 2, and the structure is compact and has higher integrity. At the same time, there is no need to stack the single battery groups 2 during processing, and they can be quickly installed through tooling, which is convenient and fast to operate.

[0085] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An all-vanadium liquid flow energy storage device, comprising a support frame (11), the support frame (11) being a rectangular frame, a first electrolyte storage tank (12) being arranged on the support frame (11), and a second electrolyte storage tank (13) being arranged on the support frame (11), characterized in that: The first electrolyte storage tank (12) and the second electrolyte storage tank (13) are arranged in a concentric ring shape, and a liquid flow stack structure (14) is provided between the first electrolyte storage tank (12) and the second electrolyte storage tank; The liquid flow stack structure (14) is connected to the first electrolyte storage tank (12) and the second electrolyte storage tank (13) respectively through a pair of circulation control systems (15); The liquid flow battery stack structure (14) comprises a rolling frame (141), a rotating seat (142) is arranged on the support frame (11), the rolling frame (141) is mounted on the rotating seat (142), the rolling frame (141) is divided into a plurality of independent installation positions (146), the plurality of installation positions (146) are a plurality of independent sectors, a plurality of single battery groups (2) are arranged in the installation positions (146), and a graduated rotation assembly (143) is arranged on the support frame (11); The first electrolyte storage tank (12) and the second electrolyte storage tank (13) are fixedly arranged, the indexing rotation assembly (143) is connected to the rotating seat (142), the indexing rotation assembly (143) controls the rotating seat (142) to drive the rolling frame to rotate, and the rolling frame (141) is used to install a plurality of single battery groups (2); The first electrolyte storage tank (12) is a cylindrical storage tank, the second electrolyte storage tank (13) is a cavity shell with a missing arc ring structure, and the missing arc sector of the second electrolyte storage tank (13) has the same angle as the sector of the single installation position (146); A plurality of partitions (144) are vertically separated in the installation position (146), a plurality of single battery groups (2) are inserted into the plurality of partitions, and a plurality of the partitions (144) are bipolar plates; The single cell group (2) is composed of a pair of sealing frames (21), a pair of electrodes (22), and an ion exchange membrane (23), and the pair of electrodes (22) are respectively engraved with electrolyte flow channels (148); The rolling frame (141) is provided with a branch flow channel (147) respectively connected to the electrolyte flow channel (148) of the electrode (22) and the circulation control system (15); A pair of current collecting plates (149) are provided on the support frame (11), and the pair of current collecting plates (149) are respectively connected to the two poles of the bipolar plate.

2. The all-vanadium liquid flow energy storage device according to claim 1, characterized in that: The mounting position (146) is a rectangular groove, a plurality of partitions (144) in the mounting position (146) are in contact with the side surfaces of a plurality of single battery groups (2), a plurality of partitions are provided with shunt liquid inlets, and the shunt liquid inlets are in communication with the electrolyte flow channel (148).

3. The all-vanadium liquid flow energy storage device according to claim 2, characterized in that: The ion exchange membrane (23) is assembled between a pair of electrodes (22), a pair of sealing frames (21) is wrapped around the outside of the pair of electrodes (22), and the pair of electrodes (22) are respectively in contact with the separators (144) on both sides.

4. The all-vanadium liquid flow energy storage device according to claim 3, characterized in that: The indexing rotation assembly (143) comprises an indexing motor (1431), the indexing motor (1431) being mounted on a support frame (11), the lower portion of the mounting position (146) being connected to an indexing turntable (1432), an indexing gear (1433) being integrally arranged below the indexing turntable (1432), a driving gear (1434) being arranged on a driving end of the indexing motor (1431), the driving gear (1434) being meshed with the indexing gear (1433).

5. The all-vanadium liquid flow energy storage device according to claim 4, characterized in that: A pair of circulation control systems (15) are independently connected to the first electrolyte storage tank (12) or the second electrolyte storage tank (13), respectively, and the pair of circulation control systems (15) do not interfere with each other. The circulation control system (15) comprises a circulation control pump (151), the circulation control pump (151) is installed on the support frame (11), the circulation control pump (151) is connected to a liquid inlet pipe (152) connected to the first electrolyte storage tank (12) or the second electrolyte storage tank (13), and the circulation control pump (151) is connected to a liquid outlet pipe (153); The liquid outlet pipe (153) is connected to a flow divider (154), the flow divider (154) is connected to the rolling frame (141), and a flow concentrator (155) is provided on the support frame (11) corresponding to the flow divider (154), the flow concentrator (155) is connected to the rolling frame (141).

6. The all-vanadium liquid flow energy storage device according to claim 5, characterized in that: A pair of docking ring tubes (156) are provided on both sides of the rolling frame (141); the docking ring tube (156) connected to the flow divider (154) is connected to a liquid inlet of the flow divider channel (147); and the docking ring tube (156) connected to the flow combiner (155) is connected to a liquid outlet of the flow divider channel (147).

7. A processing tool for an all-vanadium liquid flow energy storage device, applied to an all-vanadium liquid flow energy storage device as claimed in any one of claims 1 to 6, characterized in that: The assembly seat (31) is a frame with a rectangular structure, a rotating frame (32) is arranged on the assembly seat (31), an assembly tool is arranged on one side of the rotating frame (32), and the rolling frame (141) is assembled on the rotating frame (32); The assembly tool comprises a guide rail frame (33), the guide rail frame (33) being mounted on one side of an assembly seat (31), a sliding seat (34) being arranged on the guide rail frame (33), a track being arranged on the sliding seat (34) cooperating with the guide rail frame (33), and a telescopic plug-in assembly (35) being arranged on the guide rail frame (33) and being linked with the sliding seat (34); The sliding seat (34) is provided with a push structure (36), the sliding seat (34) is provided with a plurality of slots (341), the push structure (36) corresponds to the plurality of slots (341), a plurality of single battery packs (2) are placed in the plurality of slots (341), and the push structure (36) is used to push the single battery packs (2) to move; A rotation control assembly (37) is connected between the rotating frame (32) and the assembly seat (31) and is used to control the rotation of the rotating frame (32).

8. The processing tooling of the all-vanadium liquid flow energy storage device according to claim 7 is characterized in that: The bottom surface of the rolling frame (141) is provided with a plurality of back-pull threaded holes arranged in a ring array, and the rotating frame (32) is provided with a plurality of movable back-pull screw rods corresponding to the plurality of back-pull threaded holes.

9. The processing tooling of the all-vanadium liquid flow energy storage device according to claim 8 is characterized in that: A pair of sliding blocks (342) are symmetrically arranged on the bottom surface of the sliding seat (34), and a pair of sliding rails matching the pair of sliding blocks (342) are arranged on the guide rail frame (33).

10. A processing tool for an all-vanadium liquid flow energy storage device according to claim 9, characterized in that: The pushing structure (36) comprises a pushing seat (361), the pushing seat (361) being mounted on one side of the sliding seat (34), the pushing seat (361) being provided with a pushing rod (362), the telescopic end of the pushing rod (362) being provided with a pushing plate (363), the pushing plate (363) being provided with a plurality of pushing blocks (364), the plurality of pushing blocks (364) matching the width of a plurality of slots (341).

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