Testing methods for raw and auxiliary materials of vanadium redox flow batteries

Abstract

This invention relates to the field of testing equipment technology, specifically a testing method for raw and auxiliary materials of vanadium redox flow batteries. The method includes the following steps: SS001, Pre-setting: A section of the vanadium redox flow battery to be tested is cut from the entire battery tank. After cutting, the section is placed in the testing device. SS002, Testing: After step SS001, various tests are performed on the cut section of the vanadium redox flow battery to be tested according to the program. The testing device includes a frame, and a pressurizing mechanism is fixedly installed on the back of the frame. The beneficial effects of this invention are: During testing, this device can comprehensively complete static pressure testing, instantaneous pressure impact testing, external pressure testing, friction testing, internal pressure testing, thermal insulation performance monitoring, external pressure testing, and surface strength testing of the raw and auxiliary materials of vanadium redox flow batteries.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, specifically to a testing method for raw and auxiliary materials of vanadium redox flow batteries. Background Technology

[0002] Vanadium redox flow batteries (VRBs) are a novel, green electrochemical energy storage battery. Their positive and negative electrolytes are stored in two separate tanks. A circulating pump propels the electrolyte into the battery stack, where the active materials undergo electrochemical reactions on porous electrodes across the ion-conducting membrane. The energy storage power depends on the power and number of batteries in the stack, while the energy storage capacity depends on the volume of the electrolyte. VRBs are characterized by high safety, long lifespan, separate power and capacity design, and environmental friendliness, and are poised for widespread application. Major application areas include new energy generation, grid connection, and user side. During the design phase of VRBs, performance testing of the battery tanks is necessary. However, existing technologies lack dedicated performance testing devices and methods for VRB battery tanks. Therefore, this invention provides a testing method for the raw and auxiliary materials of VRBs to address the problems mentioned in the background. Summary of the Invention

[0003] This invention addresses the technical problems existing in the prior art by providing a testing method for the raw and auxiliary materials of vanadium redox flow batteries. This solves the problem of the lack of a dedicated performance testing device and method for the battery tank of vanadium redox flow batteries in the prior art.

[0004] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a method for detecting raw and auxiliary materials of vanadium redox flow batteries, comprising the following steps;

[0005] SS001, Preset: Cut out the vanadium redox flow battery tank to be tested from the whole tank of the vanadium redox flow battery. After the vanadium redox flow battery tank to be tested is cut out, place the vanadium redox flow battery tank to be tested in the testing device.

[0006] After steps SS002 and SS001, various tests are performed on the selected vanadium redox flow battery tank according to the procedure.

[0007] The testing device includes a frame, a pressurizing mechanism fixedly installed on the back of the frame, a set of regularly distributed pressure-applying components all connected to the pressurizing mechanism installed on the upper part of the frame, a pressure-applying platform fixedly connected to the surface of the frame through the set of pressure-applying components, a reciprocating pressure frame slidably connected inside the pressure-applying platform, a transmission module connected to the reciprocating pressure frame for transmission between the inner surfaces of the pressure-applying platform, an actuator installed inside the reciprocating pressure frame, a grinding plate clamped to the bottom surface of the reciprocating pressure frame, a bearing assembly fixedly installed at the lower part of the frame, and a clamping module for clamping the vanadium redox flow battery tank to be tested installed on the top of the bearing assembly.

[0008] The beneficial effects of this invention are:

[0009] By incorporating actuators, transmission modules, grinding plates, load-bearing components, and clamping modules, this device can efficiently perform performance testing on the primary and auxiliary tanks of vanadium redox flow batteries. Furthermore, during testing, this device can comprehensively perform static pressure testing, instantaneous pressure impact testing, external pressure testing, friction testing, internal pressure testing, thermal insulation performance monitoring, and surface strength testing on the primary and auxiliary tanks of vanadium redox flow batteries. Through the realization of these multiple testing functions, the device's testing functionality is effectively improved.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] Furthermore, the pressurizing mechanism includes a first pressurizing pump and a pressure storage tank fixed to the back of the frame. The port of the first pressurizing pump is fixedly connected to the pressure storage tank. A pressure dividing pipe is fixedly connected to the periphery of the pressure storage tank. A pressure relief valve, a first air pressure probe, and a solenoid valve are fixedly installed inside the pressure dividing pipe from front to back. The top of the pressure supply component is fixedly connected to the pressure dividing pipe.

[0012] Furthermore, the pressure-feeding component includes a piston cylinder that is vertically arranged and fixedly connected to the frame. A piston seat is slidably connected to the inner wall of the piston cylinder. A pressure rod is fixedly installed on the bottom surface of the piston seat. The bottom surface of the pressure rod is fixedly connected to the pressure-feeding platform. A return spring is sleeved on the circumferential side of the pressure rod at a position corresponding to the inside of the piston cylinder.

[0013] The beneficial effect of adopting the above-mentioned further solution is that two working modes are set when the pressing part is working;

[0014] The first working mode is static pressure mode. In static pressure mode, the solenoid valve is normally open, and the first pressurizing pump continuously supplies pressure to the inside of the pressure supply component until the monitoring value of the first air pressure probe reaches the preset value. By setting the preset value of the first air pressure probe, the static pressure of the pressure supply component on the pressure supply table can be effectively set.

[0015] The second working mode is the instantaneous pressure impact mode. In this mode, the solenoid valve is closed, and the first pressurizing pump continuously pressurizes the inside of the pressure tank. When the gas pressure inside the pressure tank reaches the preset value, the solenoid valve opens instantaneously, and the high-pressure gas inside the pressure tank rushes into the pressure supply component. When the pressure supply component is instantaneously pressurized, the pressure supply platform forms an instantaneous impact pressure.

[0016] Furthermore, the transmission module includes two guide rods symmetrically arranged and fixed between the inner surfaces of the pressure table and a transmission screw rotatably connected between the inner surfaces of the pressure table. A reciprocating motor is fixedly installed on the side of the pressure table. The output shaft end of the reciprocating motor is fixedly connected to the transmission screw. The peripheral side of the transmission screw is connected to the reciprocating pressure frame. The inner wall of the reciprocating pressure frame is slidably connected to the guide rods.

[0017] The beneficial effect of adopting the above-mentioned further solution is that, during operation, when it is necessary to perform surface strength testing or friction testing on the surface of the vanadium redox flow battery tank to be tested, the reciprocating pressure frame moves back and forth within the set stroke under the action of the reciprocating motor. After the reciprocating pressure frame moves back and forth, it drives the grinding plate to make friction contact with the top surface of the vanadium redox flow battery tank to be tested at a set pressure, thereby enabling the rapid testing of friction items on the surface of the vanadium redox flow battery tank to be tested.

[0018] Furthermore, the actuator includes a first motor and a second motor fixed to the surface of the pressure table, and a rotary table rotatably connected to the inner surface of the pressure table. The rotary table is rotatably connected to a drive shaft at its axial position. The rotary table is driven by the first motor, and the drive shaft is driven by the second motor. The rotary table has four execution surfaces on its circumferential side. A heat-conducting table, a scribing tool, a drill bit assembly, and a pressurizing assembly are fixedly installed on the surfaces of the four execution surfaces, respectively. The heat-conducting table is made of metal, and a first temperature probe is installed inside the heat-conducting table.

[0019] Furthermore, the drill bit assembly includes a drill base rotatably connected to the indexing frame, a driven bevel gear is fixedly installed at the tail of the drill base, a drive bevel gear is fixedly installed on the circumferential side of the drive shaft, the circumferential side of the drive bevel gear meshes with the driven bevel gear, and a drill bit is snapped into the inside of the drill base.

[0020] The beneficial effect of adopting the above-mentioned further solution is that, during use, the specifications and types of drill bits installed in the drill holder can be customized according to actual needs. The function of the drill bit setting is to perform surface hardness testing on the surface of the tank to be tested of the vanadium redox flow battery.

[0021] Furthermore, the pressurization assembly includes a third pressurizing pump fixed to the side of the reciprocating press frame and an air distribution head fixed to the surface of the indexing press frame. One end of the air outlet of the third pressurizing pump is fixedly connected to the air distribution head through a pipe. An air valve and a second air pressure probe are installed sequentially from front to back inside the pipe.

[0022] The beneficial effect of adopting the above-mentioned further scheme is that, during operation, when it is necessary to perform external pressure testing on the vanadium redox flow battery tank under test, the surface of the gas distribution head is in close contact with the vanadium redox flow battery tank under test. After the surface of the gas distribution head is in close contact with the vanadium redox flow battery tank under test, the third pressurizing pump continuously pressurizes the inside of the gas distribution head. After the air pressure data inside the gas distribution head reaches the set value, the central control unit paired with this testing device records the monitoring feedback value of the second air pressure probe. At the same time, the air valve is closed. After the monitoring value of the second air pressure probe is recorded, the vanadium redox flow battery tank under test is placed in a static state. After the vanadium redox flow battery tank under test has been static for a specified time, the monitoring feedback value of the second air pressure probe is recorded again. By recording the data difference between the monitoring feedback value of the second air pressure probe and the initial recorded value of the second air pressure probe, the external pressure resistance and airtightness of the vanadium redox flow battery tank under test can be detected.

[0023] Furthermore, the bearing assembly includes a support frame fixedly connected to the frame, a carrier plate is disposed above the support frame, and a set of pressure sensors are installed between the opposing surfaces of the carrier plate and the support frame.

[0024] Furthermore, the clamping module includes a fixed clamping plate, a set of clamping push rods, and a sealing clamping plate that cooperates with the vanadium redox flow battery tank to be inspected. The bottom surface of the fixed clamping plate and the peripheral side surface of the set of clamping push rods are fixedly connected to the carrier plate. The movable ends of the set of clamping push rods are fixedly connected to the sealing clamping plate. A second temperature probe, a third pressure probe, and a set of heating rods are respectively installed inside the sealing clamping plate. A second pressure pump is fixedly installed on the surface of the frame. The port of the second pressure pump is fixedly connected to the sealing clamping plate through a pressurization pipe.

[0025] The beneficial effect of adopting the above-mentioned further solution is that, during operation, when it is necessary to test the thermal insulation performance of the vanadium redox flow battery tank under test, the surface of the sealing clamp is in close contact with the vanadium redox flow battery tank under test, and the heating rod is inserted into the interior of the vanadium redox flow battery tank under test. During the test, the heating rod generates a heat source at a set temperature. When the heat source is generated, the central control host paired with this device receives data feedback from the first temperature probe and the second temperature probe in real time. The central control host calculates the temperature difference between the first temperature probe and the second temperature probe within a specified time, thereby assisting in the test of the thermal conductivity performance of the vanadium redox flow battery tank under test.

[0026] Furthermore, the testing items in step SS002 include static pressure testing, instantaneous pressure impact testing, external pressure testing, friction testing, internal pressure testing, thermal insulation performance monitoring, external pressure testing, and surface strength testing. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the detection device used in the detection method for raw and auxiliary materials of the vanadium redox flow battery of the present invention.

[0028] Figure 2 For the present invention Figure 1 A front view structural diagram;

[0029] Figure 3 This is a schematic diagram of the pressure feeding component and pressure feeding table of the present invention;

[0030] Figure 4 For the present invention Figure 3 A structural diagram from another perspective;

[0031] Figure 5 This is a schematic diagram of the structure of the heating rod and the second temperature probe of the present invention;

[0032] Figure 6 This is a schematic diagram of the structure of the second motor and the scribing blade of the present invention;

[0033] Figure 7 For the present invention Figure 6 A schematic diagram of the cross-sectional structure.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1. Frame; 2. Pressure feeding component; 3. Pressure feeding table; 4. Reciprocating pressure frame; 5. Transmission module; 6. Grinding plate; 7. First pressure pump; 8. Pressure storage tank; 9. Pressure dividing pipe; 10. First motor; 11. Second motor; 12. Rotating rotating frame; 13. Heat conducting table; 14. Scribing tool; 15. Drill base; 16. Drive shaft; 17. Drill bit; 18. Third pressure pump; 19. Air distribution head; 20. Support frame; 21. Carrier plate; 22. Pressure sensor; 23. Fixed clamping plate; 24. Clamping push rod; 25. Sealing clamping plate; 26. Second temperature probe; 27. Heating rod; 28. Second pressure pump; 29. ​​Vanadium redox flow battery tank to be tested; 30. First temperature probe. Detailed Implementation

[0036] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0037] The present invention provides the following preferred embodiments.

[0038] like Figure 1-7 As shown, the testing method for raw and auxiliary materials of vanadium redox flow batteries includes the following steps;

[0039] SS001, Preset: Cut out the vanadium redox flow battery test tank 29 from the whole tank of the vanadium redox flow battery. After cutting out the vanadium redox flow battery test tank 29, place the vanadium redox flow battery test tank 29 in the testing device.

[0040] After steps SS002 and SS001, various tests are performed on the intercepted vanadium redox flow battery tank 29 according to the procedure.

[0041] The testing items in step SS002 include static pressure testing, instantaneous pressure impact testing, external pressure testing, friction testing, internal pressure testing, thermal insulation performance monitoring, external pressure testing, and surface strength testing.

[0042] The testing device includes a frame 1, and a pressurizing mechanism is fixedly installed on the back of the frame 1. The pressurizing mechanism includes a first pressurizing pump 7 and a pressure tank 8 fixedly installed on the back of the frame 1. The port of the first pressurizing pump 7 is fixedly connected to the pressure tank 8. A pressure dividing pipe 9 is fixedly connected to the periphery of the pressure tank 8. A pressure relief valve, a first air pressure probe and a solenoid valve are fixedly installed in the pressure dividing pipe 9 from front to back. The top of the pressure supply component 2 is fixedly connected to the pressure dividing pipe 9.

[0043] A set of regularly distributed pressure supply components 2, all of which are connected to the pressurization mechanism, are installed on the upper part of the frame 1;

[0044] The surface of the frame 1 is fixedly connected to the pressure table 3 by a set of pressure feeding components 2;

[0045] The pressure-feeding component 2 includes a piston cylinder that is vertically arranged and fixedly connected to the frame 1. A piston seat is slidably connected to the inner wall of the piston cylinder. A pressure rod is fixedly installed on the bottom surface of the piston seat. The bottom surface of the pressure rod is fixedly connected to the pressure-feeding table 3. A return spring is sleeved on the circumferential side of the pressure rod and at the position corresponding to the inside of the piston cylinder.

[0046] There are two working modes for the pressure component 2;

[0047] When static pressure testing of the vanadium redox flow battery tank 29 is required, the pressure supply component 2 enters static pressure mode. In static pressure mode, the solenoid valve is normally open, and the first pressurization pump 7 continuously supplies pressure to the inside of the pressure supply component 2 until the monitoring value of the first air pressure probe reaches the preset value. By setting the preset value of the first air pressure probe, the static pressure of the pressure supply component 2 on the pressure supply platform 3 can be effectively set.

[0048] When it is necessary to perform instantaneous pressure impact testing on the tank 29 of the vanadium redox flow battery, the pressure supply component 2 enters the instantaneous pressure impact mode. In this mode, the solenoid valve is closed, and the first pressurizing pump 7 continuously pressurizes the inside of the pressure tank 8. When the gas pressure inside the pressure tank 8 reaches the preset value, the solenoid valve opens instantaneously, and the high-pressure gas inside the pressure tank 8 rushes into the pressure supply component 2. After the pressure supply component 2 is instantaneously pressurized, the pressure supply platform 3 forms an instantaneous impact pressure.

[0049] A reciprocating pressure frame 4 is slidably connected inside the pressure table 3, and a transmission module 5 that is connected to the reciprocating pressure frame 4 is installed between the inner surfaces of the pressure table 3.

[0050] The transmission module 5 includes two guide rods symmetrically arranged and fixed between the inner surfaces of the pressure table 3 and a transmission screw rotatably connected between the inner surfaces of the pressure table 3. A reciprocating motor is fixedly installed on the side of the pressure table 3. The output shaft end of the reciprocating motor is fixedly connected to the transmission screw. The peripheral side of the transmission screw is connected to the reciprocating pressure frame 4. The inner wall of the reciprocating pressure frame 4 is slidably connected to the guide rod.

[0051] An actuator is installed inside the reciprocating pressure frame 4. A grinding plate 6 is snapped onto the bottom surface of the reciprocating pressure frame 4. A set of regularly distributed positioning slots are opened inside the reciprocating pressure frame 4. A positioning pin that cooperates with the positioning slot is fixedly installed on the top surface of the grinding plate 6 and at the position corresponding to each positioning slot.

[0052] The bottom surface of the grinding plate 6 is fixedly provided with friction patterns for friction testing of the tank 29 of the vanadium redox flow battery under test;

[0053] The type and specifications of the grinding plate 6 can be customized according to actual needs;

[0054] During operation, when friction testing is required on the surface of the vanadium redox flow battery tank 29, the bottom surface of the grinding plate 6 is in contact with the top surface of the vanadium redox flow battery tank 29 under the action of the pressure feeder 2. After the grinding plate 6 has made contact with the top surface of the vanadium redox flow battery tank 29, the reciprocating pressure frame 4 moves back and forth within a set stroke under the action of the reciprocating motor. After the reciprocating pressure frame 4 moves back and forth, it drives the grinding plate 6 to make friction contact with the top surface of the vanadium redox flow battery tank 29 under the set pressure, thereby enabling rapid friction testing of the surface of the vanadium redox flow battery tank 29.

[0055] A load-bearing assembly is fixedly installed on the lower part of the frame 1, and a clamping module for clamping the vanadium redox flow battery tank 29 to be inspected is installed on the top of the load-bearing assembly.

[0056] The actuators include a first motor 10 and a second motor 11 fixed to the surface of the pressure table 3, and a rotary table 12 rotatably connected between the inner surfaces of the pressure table 3. A drive shaft 16 is rotatably connected to the axis of the rotary table 12. The rotary table 12 is driven by the first motor 10, and the drive shaft 16 is driven by the second motor 11. The rotary table 12 has four execution surfaces on its peripheral side. A heat conduction table 13, a scribing tool 14, a drill bit 17 assembly, and a pressurization assembly are fixedly installed on the surfaces of the four execution surfaces, respectively. The heat conduction table 13 is made of metal, and a first temperature probe 30 is installed inside the heat conduction table 13.

[0057] The drill bit 17 assembly includes a drill base 15 rotatably connected to the indexing head 12. A driven bevel gear is fixedly installed at the tail of the drill base 15, and a drive bevel gear is fixedly installed on the circumferential side of the drive shaft 16. The circumferential side of the drive bevel gear meshes with the driven bevel gear. The drill bit 17 is snapped into the inside of the drill base 15.

[0058] When in use, the specifications and type of the drill bit 17 installed in the drill holder 15 can be customized according to actual needs. The purpose of the drill bit 17 is to perform surface hardness testing on the surface of the vanadium redox flow battery tank 29 to be tested.

[0059] When it is necessary to test the surface strength of the vanadium redox flow battery test tank 29, the drill bit 17 assembly can set the pressure to drill the surface of the vanadium redox flow battery test tank 29. By detecting the drilling ease of the vanadium redox flow battery test tank 29, the surface strength of the vanadium redox flow battery test tank 29 can be monitored.

[0060] Furthermore, when it is necessary to perform surface inspection on the vanadium redox flow battery test tank 29, the scrubber 14 can be set to contact the surface of the vanadium redox flow battery test tank 29 with pressure. After contact, the transmission module 5 drives the vanadium redox flow battery test tank 29 to move back and forth within the set stroke. By detecting the surface scratch degree of the vanadium redox flow battery test tank 29, the surface strength of the vanadium redox flow battery test tank 29 can be monitored.

[0061] The pressurization assembly includes a third pressurizing pump 18 fixed to the side of the reciprocating press frame 4 and an air distribution head 19 fixed to the surface of the indexing frame 12. One end of the air outlet of the third pressurizing pump 18 is fixedly connected to the air distribution head 19 through a pipe. An air valve and a second air pressure probe are installed in sequence from front to back inside the pipe.

[0062] During operation, when an external pressure test is required on the vanadium redox flow battery test tank 29, the surface of the gas distribution nozzle 19 is tightly fitted to the vanadium redox flow battery test tank 29. After the surface of the gas distribution nozzle 19 is tightly fitted to the vanadium redox flow battery test tank 29, the third pressurizing pump 18 continuously pressurizes the inside of the gas distribution nozzle 19. Once the air pressure data inside the gas distribution nozzle 19 reaches the set value, the central control unit paired with this testing device monitors the second air pressure probe. The feedback value is recorded, and the air valve is closed. After the monitoring value of the second air pressure probe is recorded, the vanadium redox flow battery test tank 29 is allowed to stand for a specified time. The monitoring feedback value of the second air pressure probe is recorded again. By recording the difference between the monitoring feedback value of the second air pressure probe and the initial recorded value of the second air pressure probe, the external pressure resistance and airtightness of the vanadium redox flow battery test tank 29 can be detected.

[0063] The load-bearing component includes a support frame 20 fixedly connected to the frame 1, a carrier plate 21 is disposed above the support frame 20, and a set of pressure sensors 22 are installed between the opposing surfaces of the carrier plate 21 and the support frame 20.

[0064] The clamping module includes a fixed clamping plate 23, a set of clamping push rods 24, and a sealing clamping plate 25 that cooperates with the vanadium redox flow battery tank 29 to be inspected. The bottom surface of the fixed clamping plate 23 and the peripheral side of the set of clamping push rods 24 are fixedly connected to the carrier plate 21. The movable ends of the set of clamping push rods 24 are fixedly connected to the sealing clamping plate 25. The interior of the sealing clamping plate 25 is equipped with a second temperature probe 26, a third air pressure probe, and a set of heating rods 27. A second pressure pump 28 is fixedly installed on the surface of the frame 1. The port of the second pressure pump 28 is fixedly connected to the sealing clamping plate 25 through a pressurization pipe.

[0065] During operation, when the thermal insulation performance of the vanadium redox flow battery test tank 29 needs to be tested, the surface of the sealing clamp 25 is in close contact with the vanadium redox flow battery test tank 29, and the heating rod 27 is inserted into the interior of the vanadium redox flow battery test tank 29. During the test, the heating rod 27 generates a heat source at a set temperature. When the heat source is generated, the central control host paired with this device receives data feedback from the first temperature probe 30 and the second temperature probe 26 in real time. The central control host calculates the temperature difference between the first temperature probe 30 and the second temperature probe 26 within a specified time, and then assists in testing the thermal conductivity performance of the vanadium redox flow battery test tank 29.

[0066] The first temperature probe 30 and the second temperature probe 26 are both DS18B20.

[0067] The first, second, and third pressure probes are all model QMP6988;

[0068] When it is necessary to perform the internal pressure test on the vanadium redox flow battery test tank 29, the second pressurizing pump 28 pressurizes the vanadium redox flow battery test tank 29 from the inside of the test tank 29 at a set pressure.

[0069] In summary, the beneficial effects of this invention are specifically reflected in:

[0070] During testing, this device can integrate static pressure testing, instantaneous pressure impact testing, external pressure testing, friction testing, internal pressure testing, thermal insulation performance monitoring, and surface strength testing of the primary and auxiliary tanks of vanadium redox flow batteries.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for testing raw and auxiliary materials of vanadium redox flow batteries, characterized in that, Includes the following steps; SS001, Preset, cut out the vanadium redox flow battery test tank (29) from the whole tank of the vanadium redox flow battery, and after the vanadium redox flow battery test tank (29) is cut out, place the cut out vanadium redox flow battery test tank (29) in the testing device. After steps SS002 and SS001, the vanadium redox flow battery tank (29) to be inspected is subjected to various tests in sequence according to the procedure. The various tests include: static pressure test, instantaneous pressure impact test, friction test, internal pressure test, thermal insulation performance monitoring, external pressure test and surface strength test. The testing device includes a frame (1), a pressurizing mechanism is fixedly installed on the back of the frame (1), a set of regularly distributed pressure-feeding components (2) are installed on the upper part of the frame (1) and are all connected to the pressurizing mechanism, a pressure-feeding platform (3) is fixedly connected to the surface of the frame (1) through a set of pressure-feeding components (2), a reciprocating pressure frame (4) is slidably connected inside the pressure-feeding platform (3), a transmission module (5) is installed between the inner surfaces of the pressure-feeding platform (3) and is connected to the reciprocating pressure frame (4), an execution mechanism is installed inside the reciprocating pressure frame (4), a grinding plate (6) is snapped onto the bottom surface of the reciprocating pressure frame (4), a bearing component is fixedly installed on the lower part of the frame (1), and a clamping module for clamping the tank (29) of the vanadium redox flow battery to be tested is installed on the top of the bearing component; The pressure supply component (2) includes a piston cylinder that is vertically arranged and fixedly connected to the frame (1). A piston seat is slidably connected to the inner wall of the piston cylinder. A pressure rod is fixedly installed on the bottom surface of the piston seat. The bottom surface of the pressure rod is fixedly connected to the pressure supply table (3). A return spring is sleeved on the circumferential side of the pressure rod and at the position corresponding to the inside of the piston cylinder. The actuators include a first motor (10) and a second motor (11) fixed to the surface of the pressure table (3), and a rotary table (12) rotatably connected between the inner surfaces of the pressure table (3). A drive shaft (16) is rotatably connected to the axis of the rotary table (12). The rotary table (12) is driven by the first motor (10), and the drive shaft (16) is driven by the second motor (11). The rotary table (12) has four execution surfaces on its peripheral side. A heat conduction table (13), a scribing tool (14), a drill bit (17) assembly, and a pressurization assembly are fixedly installed on the surfaces of the four execution surfaces. The heat conduction table (13) is made of metal, and a first temperature probe (30) is installed inside the heat conduction table (13). The bearing assembly includes a support frame (20) fixedly connected to the frame (1), a carrier plate (21) is provided above the support frame (20), and a set of pressure sensors (22) are installed between the carrier plate (21) and the opposing surfaces of the support frame (20). The clamping module includes a fixed clamping plate (23), a set of clamping push rods (24), and a sealing clamping plate (25) that cooperates with the cut-off vanadium redox flow battery test tank (29). The bottom surface of the fixed clamping plate (23) and the peripheral side surface of the set of clamping push rods (24) are fixedly connected to the carrier plate (21). The movable ends of the set of clamping push rods (24) are fixedly connected to the sealing clamping plate (25). The interior of the sealing clamping plate (25) is equipped with a second temperature probe (26), a third air pressure probe, and a set of heating rods (27). The surface of the frame (1) is fixedly equipped with a second pressurizing pump (28). The port of the second pressurizing pump (28) is fixedly connected to the sealing clamping plate (25) through a pressurizing pipe.

2. The method for detecting raw and auxiliary materials of vanadium redox flow batteries according to claim 1, characterized in that, The pressurizing mechanism includes a first pressurizing pump (7) and a pressure tank (8) fixed to the back of the frame (1). The port of the first pressurizing pump (7) is fixedly connected to the pressure tank (8). A pressure dividing pipe (9) is fixedly connected to the periphery of the pressure tank (8). A pressure relief valve, a first air pressure probe and a solenoid valve are fixedly installed inside the pressure dividing pipe (9) from front to back. The top of the pressure supply component (2) is fixedly connected to the pressure dividing pipe (9).

3. The method for detecting raw and auxiliary materials of vanadium redox flow batteries according to claim 1, characterized in that, The transmission module (5) includes two guide rods symmetrically arranged and fixed between the inner surfaces of the pressure table (3) and a transmission screw rotatably connected between the inner surfaces of the pressure table (3). A reciprocating motor is fixedly installed on the side of the pressure table (3). The output shaft end of the reciprocating motor is fixedly connected to the transmission screw. The circumferential side of the transmission screw is connected to the reciprocating pressure frame (4). The inner wall of the reciprocating pressure frame (4) is slidably connected to the guide rod.

4. The method for detecting raw and auxiliary materials of vanadium redox flow batteries according to claim 1, characterized in that, The drill bit (17) assembly includes a drill base (15) rotatably connected to the indexing frame (12). A driven bevel gear is fixedly installed at the tail of the drill base (15). A transmission bevel gear is fixedly installed on the circumferential side of the transmission shaft (16). The circumferential side of the transmission bevel gear meshes with the driven bevel gear. The drill bit (17) is snapped into the inside of the drill base (15).

5. The method for detecting raw and auxiliary materials of vanadium redox flow batteries according to claim 1, characterized in that, The pressurization assembly includes a third pressurizing pump (18) fixed to the side of the reciprocating press frame (4) and an air distribution head (19) fixed to the surface of the indexing frame (12). One end of the air outlet of the third pressurizing pump (18) is fixedly connected to the air distribution head (19) through a pipe. An air valve and a second air pressure probe are installed in the pipe from front to back.

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