A kind of lead-acid battery gel electrolyte gel degree detection device and its detection method

Abstract

A device and method for detecting the gel content of lead-acid battery gel electrolyte, belonging to the technical field of lead-acid batteries and their testing, is disclosed. The device includes a measuring container with a dispensing mechanism at its upper end. The measuring container includes a cylindrical body with a first lead wire I and a first lead wire II at its lower end. A lead ball is movably disposed inside the cylindrical body. The dispensing mechanism includes a top cover on the upper end of the cylindrical body, with a second lead wire I and a second lead wire II disposed on the top cover. The first lead wire I is connected to a DC power supply, the first lead wire II is connected to a voltage data recorder, the second lead wire I is connected to the DC power supply, and the second lead wire II is connected to the voltage data recorder. The method uses this device to detect the gel content of the gel electrolyte. This invention improves the accuracy of gel content testing by using a voltage data recorder to adjust the voltage of the test circuit according to the position of the lead ball, thereby determining the movement time of the lead ball.

Description

Technical Field

[0001] This invention relates to the field of lead-acid batteries and their testing technology, and in particular to a device and method for testing the gel content of lead-acid battery gel electrolyte. Background Technology

[0002] Currently, the gelation degree of lead-acid battery gel electrolyte is often tested using the drop tube method. This method uses a vertical glass tube as an acceleration channel, a lead ball as the test sample, and a test container containing the gel electrolyte. The glass tube is fitted over the upper end of the test container. The method involves freely releasing the lead ball from the top of the glass tube, allowing it to fall with a certain initial velocity into the gel electrolyte in the test container below. The lead ball moves within the gel due to the combined effects of gravity, buoyancy, and electrolyte resistance. The time it takes for the lead ball to move within the test container is used as the test time. Then, the time it takes for the lead ball to move within an equal volume and concentration of sulfuric acid is measured again, and the ratio of the two measurements yields the corresponding gelation degree.

[0003] This testing method has the following problems: First, the recording of the lead ball's movement time is done by visual observation. This method has two main drawbacks: a large error in recording the starting point of the time, and difficulty in determining whether the lead ball has actually landed in the correct position. Second, the lead ball's path often deviates during the test, causing it to come into contact with the inner wall of the test container or glass tube. This results in resistance to the lead ball being greater than the ideal resistance, leading to lower accuracy in the gelation degree measurement. Specifically, when the lead ball moves within the test container's colloidal electrolyte, if it comes into contact with the inner wall, the electrolyte acts as an adhesive, further increasing the resistance. Third, the uncontrollable movement path of the lead ball can cause it to collide with the glass tube, potentially leading to breakage. Fourth, the test has poor safety, with the risk of the colloidal electrolyte splashing or spilling out. Summary of the Invention

[0004] This invention provides a device and method for detecting the gelation degree of lead-acid battery gel electrolyte, which overcomes the shortcomings of the prior art and solves the problems existing in the gelation degree testing of gel electrolyte.

[0005] In order to achieve the objectives of this invention, the following technologies are proposed:

[0006] One aspect is the provision of a gel degree testing device for lead-acid battery gel electrolyte, including a measuring container with a dispensing mechanism at the top.

[0007] The measuring container includes a cylinder, with a first wire I and a first wire II at the lower end of the cylinder. A lead ball is movable inside the cylinder, and colloidal electrolyte is contained in the cylinder. The lead ball has a circular groove, and an annular groove is formed on the inner circumference of the circular groove.

[0008] The dispensing mechanism includes an upper cover installed on the upper end of the cylinder, and the upper cover is provided with a second wire I and a second wire II;

[0009] The first wire I is connected to a DC power supply, the first wire II is connected to a voltage data recorder, the second wire I is connected to the DC power supply, and the second wire II is connected to the voltage data recorder.

[0010] Before the shot ball moves, the shot ball is connected to the top cover, and the shot ball is connected to the second wire I and the second wire II;

[0011] After the lead ball moves, it moves to the lower end of the cylinder in the colloidal electrolyte and connects to the first wire I and the first wire II.

[0012] Furthermore, a buffer pad is provided at the lower end of the cylinder, and a concave arc groove is formed at the upper end of the buffer pad. A pair of embedded grooves are provided on the arc surface of the concave arc groove, and a conductive plate is fixed in the embedded groove. The first wire I and the first wire II are respectively welded to the outer wall of the conductive plate. A pair of lower extension tubes are formed on the buffer pad, and the first wire I and the first wire II pass through the lower extension tubes. A pair of connecting holes are symmetrically opened at the lower end of the cylinder, and the lower extension tubes pass through the connecting holes.

[0013] Furthermore, the lower end of the connecting hole is connected to a connecting protrusion, and the inner circumference of the connecting protrusion is formed with a tapered hole, the diameter of the upper end of the tapered hole being smaller than the diameter of its lower end.

[0014] The lower end of the extension tube extends out of the connecting convex tube. The lower end of the connecting convex tube abuts against an end ring. The upper end of the end ring is formed with a sealing cone ring. The outer circumference of the sealing cone ring abuts against the inner circumference of the tapered hole. A sealing sleeve is embedded in the inner circumference of the sealing cone ring. The end ring and the sealing sleeve are fitted onto the extension tube. The inner circumference of the sealing sleeve abuts against the outer circumference of the extension tube. A sealing cap is connected to the outer circumference of the connecting convex tube. The extension tube passes through the bottom of the sealing cap. The inner wall of the lower end of the extension tube abuts against the lower end of the end ring.

[0015] Furthermore, the inner wall of the conductive plate is formed with multiple hemispherical protrusions.

[0016] Furthermore, an inner column is formed inside the top cover, and there is an annular gap between the outer periphery of the inner column and the inner periphery of the top cover. The upper end of the cylinder passes through the annular gap, and an arc-shaped groove is formed at the lower end of the inner column. A connecting hole is opened on the arc-shaped groove. An upper protruding connecting tube is formed on the top cover. A pair of embedding grooves are opened on the arc surface of the arc-shaped groove. An external connecting hole is opened at the bottom of the embedding groove. The upper end of the external connecting hole passes through the top cover. A contact piece is fixed in the embedding groove. The second wire I and the second wire II are respectively welded to the contact piece and pass out from the external connecting hole.

[0017] Furthermore, an insert tube is fixed inside the upper connecting tube, and a lower plate is provided at the bottom of the insert tube. At least one pair of windows are opened on the outer periphery of the lower end of the insert tube. At least two pairs of constraint holes are opened on the lower plate, and a moving rod is movably installed in the constraint holes. The upper end of each pair of moving rods is connected to a moving inner plate. Limiting protrusions are formed on the outer wall of the moving inner plate. The limiting protrusions and windows are in a one-to-one correspondence, and the limiting protrusions pass through their corresponding windows. An outer connecting vertical plate is welded to the inner wall of the moving inner plate. The upper and lower ends of the outer connecting vertical plate are respectively connected to two pairs of connecting plates through a sixth axis. The other end of each pair of connecting plates is connected to an inner vertical plate via a seventh shaft. The inner end of the inner vertical plate is formed with a connecting sleeve. A lower connecting rod is connected inside the connecting sleeve. A middle connecting rod is formed at the upper end of the lower connecting rod. An upper connecting rod is provided at the upper end of the middle connecting rod. A movable disc is sleeved on the upper connecting rod. The movable disc is located inside the insertion tube. A pull tube is connected to the upper connecting rod. The lower end of the pull tube abuts against the upper wall of the movable disc. An end cap is connected to the inner circumference of the upper end of the insertion tube. The pull tube is coaxially inserted through the end cap. A second spring is sleeved on the pull tube. The second spring is located between the movable disc and the end cap.

[0018] Furthermore, a connecting seat is fixed to the upper end of the insertion tube, and an upper protrusion is fixed to the connecting seat. Swinging side plates are provided on both sides of the upper protrusion via an eighth axis. A sixth hole is opened on the swinging side plate, and a ninth axis is movably provided in the sixth hole. A connecting end is connected to the ninth axis, and the lower end of the connecting end is connected to the upper end of the pull-out tube. A push handle is formed on the outer end of the swinging side plate, and a fixed handle is fixed on the upper protrusion. The fixed handle is located directly below the push handle.

[0019] Furthermore, a pointed conical groove is formed at the bottom of the circular groove, and the diameter of the upper end of the pointed conical groove is smaller than the diameter of its lower end;

[0020] The lower plate is formed with an internally threaded tube, which is connected to a connecting column. The lower end of the connecting column is formed with a base plate, and the lower end of the base plate is formed with a pointed cone. The diameter of the lower end of the pointed cone is smaller than the diameter of its upper end, and the pointed cone is inserted into the pointed cone groove.

[0021] Furthermore, multiple fan-shaped holes are arranged in a circumferential array on the arc surface of the arc groove. An oblique hole is formed at the bottom of the fan-shaped hole. The axis of the oblique hole intersects with the center of the arc groove. An inner pressure rod is inserted through the oblique hole. The inner end of the inner pressure rod is connected to a top plate. The top plate is located inside the fan-shaped hole. A first spring is sleeved on the inner pressure rod. One end of the first spring abuts against the outer wall of the top plate, and the other end of the first spring abuts against the bottom of the fan-shaped hole. The outer end of the inner pressure rod extends out of the top cover.

[0022] On the other hand, a method for detecting the gelation degree of lead-acid battery gel electrolyte is provided. This method uses a lead-acid battery gel electrolyte gelation degree detection device to detect the gelation degree of the electrolyte. The detection steps include:

[0023] Step 1: Connect the lead ball to the top cover so that the lead ball is connected to the second wire I and the second wire II;

[0024] Step 2: Inject the colloidal electrolyte to be tested into the cylinder;

[0025] Step 3: Place the top cover containing the lead ball onto the top of the cylinder;

[0026] Step 4: Disconnect the lead ball from the top cover. When disconnected, the voltage data logger records the time T1 when the voltage changes.

[0027] Step 5: The lead ball moves downwards in the colloidal electrolyte to be tested to the bottom of the cylinder. Upon contact, the voltage data recorder records the time T2 of the voltage change.

[0028] Step 6: Calculate the time t taken for the lead ball to move within the colloidal electrolyte by using the difference between time T1 and time T2. 测 ;

[0029] Step 7: Pour out the lead ball and the colloidal electrolyte to be tested from the cylinder, clean the cylinder and lead ball, and then inject sulfuric acid of the same amount and concentration as the colloidal electrolyte to be tested into the cylinder.

[0030] Step 8: Continue with steps 1 to 6, and calculate the time t it takes for the lead ball to move in equal amounts and concentrations of sulfuric acid. 对 ;

[0031] Step 9, via t 测 and t 对 The ratio is used to determine the gelation degree of the colloidal electrolyte to be tested.

[0032] The advantages of the above technical solution are:

[0033] One aspect of this invention is that the voltage of the test circuit changes according to the different positions of the lead ball using a voltage data recorder. The movement time of the lead ball is obtained by recording the voltage change time points by the voltage data recorder. This method replaces visual observation and improves the accuracy of gelation test.

[0034] Secondly, by constraining the direction of the resultant force when the shot put falls and ensuring that the shot put is positioned axially above the cylinder during placement, the resistance experienced by the shot put can be reduced when it moves, and the shot put can be prevented from impacting the cylinder.

[0035] Thirdly, by setting up components such as the top cover, the splashing of the colloidal electrolyte can be avoided during testing, thereby improving safety. Attached Figure Description

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will now be described in further detail with reference to the accompanying drawings.

[0037] Figure 1 A three-dimensional structural diagram of the first lead-acid battery gel electrolyte gelation degree detection device is shown.

[0038] Figure 2 A three-dimensional structural diagram of the cylinder is shown.

[0039] Figure 3 A cross-sectional structural diagram of the cylinder is shown.

[0040] Figure 4 A three-dimensional structural diagram of the shot put is shown.

[0041] Figure 5 A three-dimensional structural diagram of the top cover is shown.

[0042] Figure 6 A three-dimensional structural diagram of the inner column is shown.

[0043] Figure 7 A first structural diagram showing the connection between the launching mechanism and the shot put is shown.

[0044] Figure 8 A second structural diagram is shown when the launching mechanism and the shot put are connected.

[0045] Figure 9 A schematic diagram of the cross-sectional structure when the launching mechanism and the shot put are connected is shown.

[0046] Figure 10 The first three-dimensional structural diagram of the delivery mechanism is shown.

[0047] Figure 11 A second three-dimensional structural diagram of the internal structure of the delivery mechanism is shown.

[0048] Figure 12 The diagram shows a three-dimensional structure of the second and third lead-acid battery gel electrolyte gel degree detection devices.

[0049] Figure 13 The diagram shows the structure when the support leg and the base plate are connected.

[0050] Figure 14 A three-dimensional structural diagram of the constraint mechanism and measuring container connected from a first-view perspective is shown.

[0051] Figure 15 A three-dimensional structural diagram of the constraint mechanism and measuring container connected from a second perspective is shown.

[0052] Figure 16 The circuit connection diagram used in the method for detecting the gelation degree of lead-acid battery gel electrolyte is shown.

[0053] Explanation of reference numerals in the attached figures:

[0054] Base plate 1, guide hole 10, through hole 11, support leg 2, lower convex plate 200, first shaft 201, concave support 202, second shaft 203, support head 204, support plate 205, first slot 206, movable rod 207, moving head 208, lead screw 209, limit nut 210, first end cap 211, constraint mechanism 3, connecting rod 300, movable upper plate 301, constraint vertical member 302, circumferential arc plate 303, constraint hook 304, guide rod 305, push-pull frame 306, push-pull vertical plate 30 7. Second hole 308, third shaft 309, rotating arm 310, fourth shaft 311, third hole 312, lower extension arm 314, fifth shaft 315, limit screw 316, pull plate 317, fourth hole 318, outer strip 319, pin 320, push-pull arm 321, measuring container 4, cylinder 400, connecting protrusion 401, connecting hole 402, tapered hole 403, buffer pad 404, concave arc groove 405, conductive plate 406, protrusion 407, first wire 408, first wire I 4080, First Conductor II; 4081, Sealing Cone Ring; 409, Sealing Sleeve Ring; 410, End Ring; 411, Sealing Cap; 412, Lower Extension Tube; 413, Lead Ball; 414, Circular Groove; 415, Ring Groove; 416, Pointed Cone Groove; 417, Dispensing Mechanism; 500, Upper Cover; 501, Protrusion; 502, Insertion Tube; 503, End Cap; 504, Connecting Seat; 505, Upper Protrusion; 506, Eighth Shaft; 507, Swinging Side Plate; 508, Sixth Hole; 509, Push Handle; 510, Fixed Handle; 511, Inner Pressure Rod; 512, Second Conductor I; 5120, Second Conductor II 5121, Inner column 513, Annular gap 514, Arc groove 515, Connecting hole 516, Upper protruding connecting tube 517, Contact piece 518, Top plate 519, First spring 520, Fan-shaped hole 521, Inclined hole 522, Embedded groove 523, External connecting hole 524, Pressure cap 525, Connecting end 526, Ninth shaft 527, Pull-out tube 528, Abutting ring 529, Upper connecting rod 530, Middle connecting rod 531, Limiting upper ring 532, Lower connecting rod 533, Movable Moving plate 534, second spring 535, lower plate 536, internal threaded tube 537, connecting column 538, base plate 539, pointed cone 540, window 541, constraint hole 542, moving rod 543, fifth hole 544, connecting sleeve 545, inner connecting vertical plate 546, seventh shaft 547, connecting plate 548, moving inner plate 549, limiting protrusion 550, outer connecting vertical plate 551, sixth shaft 552, DC power supply 60, voltage data recorder 61. Detailed Implementation

[0055] Example 1

[0056] like Figure 1 As shown, the first lead-acid battery gel electrolyte gel degree detection device includes a measuring container 4, and a dispensing mechanism 5 is provided at the upper end of the measuring container 4.

[0057] like Figures 2 to 4 As shown, the measuring container 4 includes a cylindrical body 400, which is open at the top and closed at the bottom. The cylindrical body 400 is made of polytetrafluoroethylene. A pair of connecting holes 402 are symmetrically provided at the bottom of the cylindrical body 400. A connecting protrusion 401 is coaxially connected to the bottom of the cylindrical body 400 and the connecting holes 402. A conical hole 403 is formed on the inner circumference of the connecting protrusion 401. The diameter of the upper end of the conical hole 403 is smaller than the diameter of its lower end.

[0058] A buffer pad 404 is attached to the lower end of the cylinder 400. The upper end of the buffer pad 404 has an open concave arc groove 405. A pair of symmetrically arranged recessed grooves are formed on the arc surface of the concave arc groove 405. A conductive plate 406 is fixed within the recessed grooves. Multiple hemispherical protrusions 407 are formed on the inner wall of the conductive plate 406. A first wire 408 is welded to the outer wall of the conductive plate 406. The first wire 408 passes through the buffer pad 404. A pair of symmetrically arranged lower extension tubes 413 are formed at the lower end of the buffer pad 404. The first wire 408 passes through the lower extension tubes 413. The extension tube 413 passes through the connecting hole 402, and the lower end of the extension tube 413 extends out of the connecting protrusion tube 401. The lower end of the connecting protrusion tube 401 abuts against the end ring 411. The upper end of the end ring 411 is formed with a sealing cone ring 409. The outer circumference of the sealing cone ring 409 abuts against the inner circumference of the cone hole 403. A sealing sleeve 410 is embedded in the inner circumference of the sealing cone ring 409. The end ring 411 and the sealing sleeve 410 are fitted onto the extension tube 413. The sealing effect of the extension tube 413 is improved by setting the sealing sleeve 410 and the sealing cone ring 409 to prevent the problem of colloidal electrolyte leakage. The inner circumference of the sealing ring 410 abuts against the outer circumference of the lower extension tube 413. The outer circumference of the connecting convex tube 401 is connected to the sealing cap 412 by threads. The lower extension tube 413 passes through the bottom of the sealing cap 412, and the lower inner wall of the lower end of the lower extension tube 413 abuts against the lower end of the end ring 411.

[0059] like Figure 4 As shown, a lead ball 414 is movably disposed inside the cylinder 400. The lead ball 414 has a circular groove 415. An annular groove 416 is formed on the inner circumference of the circular groove 415. A pointed conical groove 417 is formed at the bottom of the circular groove 415. The diameter of the upper end of the pointed conical groove 417 is smaller than the diameter of its lower end.

[0060] When the lead ball 414 falls to the bottom of the cylinder 400, the buffer pad 404 can prevent it from directly impacting the bottom of the cylinder 400, and the concave arc groove 405 can also constrain the lead ball 414, so that the lead ball 414 can contact the protrusion 407. The protrusion 407 is provided on the conductive plate 406 to allow the colloidal electrolyte between the lead ball 414 and the conductive plate 406 to drain, thereby ensuring the connection effect between the lead ball 414 and the test circuit.

[0061] like Figure 4 and Figures 5 to 11 As shown, the dispensing mechanism 5 includes an upper cover 500 covering the upper end of the cylinder 400. The upper cover 500 is made of polytetrafluoroethylene (PTFE). Four protrusions 501 are formed on the outer periphery of the upper cover 500. An inner post 513 is formed inside the upper cover 500. An annular gap 514 exists between the outer periphery of the inner post 513 and the inner periphery of the upper cover 500. The upper end of the cylinder 400 passes through the annular gap 514. An arc-shaped groove 515 is formed at the lower end of the inner post 513. A connecting hole 516 is opened on the arc-shaped groove 515. The connecting hole 516 is coaxial with the inner post 513. The upper cover 500 has an upper protruding connecting tube 517 formed on the upper cover 500, which is coaxial with and connected to the connecting hole 516. Multiple fan-shaped holes 521 are arranged in a circumferential array on the arc surface of the arc groove 515. An oblique hole 522 is provided at the bottom of the fan-shaped hole 521. The axial direction of the oblique hole 522 intersects the center of the arc groove 515 and the oblique hole 522 passes through the upper cover 500. A pair of embedding grooves 523 are symmetrically provided on the arc surface of the arc groove 515. An external connecting hole 524 is provided at the bottom of the embedding groove 523. The upper end of the external connecting hole 524 passes through the upper cover 500.

[0062] like Figures 5 to 7 As shown, an inner pressure rod 511 is inserted into the oblique hole 522. The inner end of the inner pressure rod 511 is threadedly connected to a top plate 519. The top plate 519 is located inside the fan-shaped hole 521. A first spring 520 is sleeved on the inner pressure rod 511. One end of the first spring 520 abuts against the outer wall of the top plate 519, and the other end of the first spring 520 abuts against the bottom of the fan-shaped hole 521. The outer end of the inner pressure rod 511 extends out of the upper cover 500, and the end cap of the inner pressure rod 511 is located above the upper cover 500. When the shot put 41... When connected to the dispensing mechanism 5, the top plate 519 made of insulating material will act on the outer periphery of the lead ball 414. At the same time, the axis of the inner pressure rod 511 intersects with the center of the lead ball 414. When the first springs 520 with equal elastic coefficients are compressed, the resultant force formed by the elastic force generated by these first springs 520 will be along the vertical direction. Thus, when the connection of the dispensing mechanism 5 is removed, the lead ball 414 can have a certain initial downward velocity so that the lead ball 414 can move in the colloidal electrolyte.

[0063] like Figures 5 to 7 As shown, a contact piece 518 is attached and fixed in the groove 523. The contact piece 518 is made of lead. A second wire 512 is soldered onto the contact piece 518. The second wire 512 passes through the external connecting hole 524, and the outer end of the second wire 512 extends out of the upper cover 500.

[0064] like Figure 4 and Figures 8 to 11As shown, an insertion tube 502 is inserted into the connecting hole 516 and the upper protruding connecting tube 517. Before the lead ball 414 moves, the insertion tube 502 is inserted into the circular groove 415. An abutment ring 529 is formed on the outer periphery of the insertion tube 502. The lower wall of the abutment ring 529 abuts against the upper end of the upper protruding connecting tube 517. A pressure cap 525 is threadedly connected to the outer periphery of the upper protruding connecting tube 517. The insertion tube 502 passes through the pressure cap 525. The inner wall of the upper end of the pressure cap 525 abuts against the upper wall of the abutment ring 529. A lower plate 536 is provided at the bottom of the insertion tube 502. At least one pair of windows 541 are opened on the outer periphery of the lower end of the insertion tube 502. At least two pairs of windows are arranged in a circular array on the lower plate 536. A constraint hole 542 has a fifth hole 544 formed at its lower end, which has the same shape and structure as the constraint hole 542. A movable rod 543 is movably installed in the constraint hole 542. The end cap of the movable rod 543 is located in the fifth hole 544, and the rod body of the movable rod 543 passes through the constraint hole 542. The upper end of each pair of movable rods 543 is connected to a movable inner plate 549 by threads. The movable inner plate 549 is located in the insertion tube 502. A limiting protrusion 550 is formed on the outer wall of the movable inner plate 549. The limiting protrusion 550 has a one-to-one correspondence with the window 541, and the limiting protrusion 550 passes through the corresponding window 541. When 50 extends, it passes through the annular groove 416. The inner wall of the movable inner plate 549 is welded with an outer connecting vertical plate 551. The upper and lower ends of the outer connecting vertical plate 551 are respectively connected to two pairs of connecting plates 548 through the sixth shaft 552. The other end of each pair of connecting plates 548 is connected to an inner connecting vertical plate 546 through the seventh shaft 547. A connecting sleeve 545 is formed on the inner side of the inner connecting vertical plate 546. The connecting sleeve 545 is coaxially arranged with the insertion tube 502. A lower connecting rod 533 is threadedly connected inside the connecting sleeve 545. A middle connecting rod 531 is formed on the upper end of the lower connecting rod 533. A limit upper ring 532 is formed on the outer periphery of the upper end of the middle connecting rod 531. The upper end of the middle connecting rod 531 is provided with There is an upper connecting rod 530, on which a movable disc 534 is sleeved. The movable disc 534 is located inside the insertion tube 502. A pull tube 528 is threadedly connected to the upper connecting rod 530. The lower end of the pull tube 528 abuts against the upper wall of the movable disc 534. The lower wall of the movable disc 534 abuts against the upper wall of the limiting upper ring 532. An end cap 503 is threadedly connected to the inner circumference of the upper end of the insertion tube 502. The pull tube 528 is coaxially inserted through the end cap 503. A second spring 535 is sleeved on the pull tube 528. The lower end of the second spring 535 abuts against the upper wall of the movable disc 534. The upper end of the second spring 535 abuts against the lower end of the end cap 503.

[0065] like Figure 4 and Figure 9As shown, the lower plate 536 extends upward to form an internally threaded tube 537. A connecting post 538 is threadedly connected inside the internally threaded tube 537. A base plate 539 is formed at the lower end of the connecting post 538. A pointed cone 540 is formed at the lower end of the base plate 539. The diameter of the lower end of the pointed cone 540 is smaller than the diameter of its upper end, and the pointed cone 540 is inserted into the pointed cone groove 417. The pointed cone 540 and the pointed cone groove 417 are provided to make the insertion tube 502 and the circular groove 415 coaxial, so as to connect the lead ball 414 and the insertion tube 502.

[0066] like Figure 8 As shown, a connecting seat 504 is fitted around the upper periphery of the insertion tube 502 and fixed with screws. An upper protrusion 505 is fixed to the connecting seat 504 with screws. Swing side plates 507 are rotatably provided on both sides of the upper protrusion 505 via an eighth axis 506. A sixth hole 508 parallel to its length direction is opened on the swing side plate 507. A ninth axis 527 is movably provided in the sixth hole 508. A connecting end 526 is connected to the ninth axis 527. The lower end of the connecting end 526 is threaded to the upper end of the pull tube 528. A push handle 509 with a concave cross-section is integrally formed on the outer end of the swing side plate 507. The length direction of the push handle 509 and the length direction of the swing side plate 507 form an obtuse angle. A fixed handle 510 is fixed to the upper protrusion 505 with screws. The fixed handle 510 is located directly below the push handle 509.

[0067] In this embodiment, the gelation degree of the colloidal electrolyte is tested in the following manner.

[0068] First, fill the cylinder 400 with the colloidal electrolyte.

[0069] Next, hold the push handle 509 and the fixed handle 510 so that the push handle 509 rotates downward about the eighth axis 506. During the rotation, the sixth hole 508 acts on the ninth axis 527, so that the ninth axis 527 and the pull tube 528 move upward. During the movement, the second spring 535 will be compressed, and the connecting sleeve 545 will also move upward. During the movement, the inner end of the connecting plate 548 rotates upward, and at the same time pulls the various moving inner plates 549 on its outer end to move inward. When the moving inner plates 549 move inward, the limiting protrusion 550 will be submerged in the window 541.

[0070] Next, hold the lead ball 414 so that the insertion tube 502 is inserted into the circular groove 415.

[0071] Next, release the push handle 509 and the fixed handle 510. Then, the lower end of the second spring 535 pushes the movable plate 534 downward. During the movement, the connecting sleeve 545 moves downward until the lower end of the connecting sleeve 545 abuts against the upper end of the internal threaded tube 537. At this time, the inner end of the connecting plate 548 rotates downward, and during the rotation, the limiting protrusion 550 extends out from the window 541, and its outer end is locked in the annular groove 416. At this time, the lead ball 414 is connected to the insertion tube 502. After insertion, the other components also have the following connection relationships: First, the periphery of the lead ball 414 abuts against the periphery of the arc groove 515; second, the top plate 519 abuts against the periphery of the lead ball 414, and the first spring 520 is in a compressed state.

[0072] Next, the top cover 500 is placed on the top of the cylinder 400.

[0073] Then, hold the push handle 509 and the fixed handle 510 again to move the limiting protrusion 550 inward, thereby moving the lead ball 414 downward into the colloidal electrolyte. When the lead ball 414 moves downward, since the second wire 512 is in a disconnected state, the starting point of the movement of the lead ball 414 can be determined by detecting the voltage change.

[0074] Finally, the shot ball 414 will move into the concave groove 405 of the buffer pad 404 and come into contact with the protrusion 407. At this time, the time endpoint of the shot ball 414 moving onto the buffer pad 404 can be known through the voltage change of the first wire 408.

[0075] like Figure 16 As shown, the first lead-acid battery gel electrolyte gel degree detection device further includes a DC power supply 60, one pole of which is connected to a voltage data recorder 61, and a measuring container 4 as described in Embodiment 1. The measuring container 4 has a dispensing mechanism 5 at its upper end. One of the first wires 408, first wire I 4080, is connected to the other pole of the DC power supply 60, and another first wire II 4081 is connected to the voltage data recorder 61. One of the second wires 512, second wire I 5120, is connected to the other pole of the DC power supply 60, and another second wire II 5121 is connected to the voltage data recorder 61. The voltage data recorder 61 is a QuadVoltV2 voltage data recorder, which has the ability to record voltage changes in a very short time. During the measurement process, a voltage value table changing over time can be displayed on its screen to clearly determine the inflection point of the voltage change, thereby obtaining the difference before and after the voltage change.

[0076] When the shot put 414 is connected to the launching mechanism 5, the shot put 414, the second wire I 5120, the second wire II 5121, the voltage data recorder 61 and the DC power supply 60 form a first series circuit.

[0077] When the lead ball 414 is located at the bottom of the measuring container 4, the lead ball 414, the first wire I 4080, the first wire II 4081, the voltage data recorder 61 and the DC power supply 60 form a second series circuit.

[0078] When the lead ball 414 moves downward in the colloidal electrolyte in the measuring container 4, the lead ball 414, the colloidal electrolyte, the second wire I 5120, the second wire II 5121, the voltage data recorder 61, and the DC power supply 60 form a third series circuit.

[0079] When the lead ball 414 is connected to the delivery mechanism 5, the colloidal electrolyte, the second wire I 5120, the second wire II 5121, the voltage data recorder 61, and the DC power supply 60 located in the measuring container 4 form a fourth series circuit.

[0080] Example 2

[0081] like Figure 12 As shown, the second type of lead-acid battery gel electrolyte gel degree testing device includes a rectangular base plate 1 with support legs 2 at its four corners. The measuring container 4 described in Example 1 is placed on the base plate 1, and the measuring container 4 is equipped with a dispensing mechanism 5 as described in Example 1. This embodiment provides a base plate 1 with support legs 2 on it. The base plate 1 is mainly used to place the measuring container 4. Since the lower end of the measuring container 4 is not flat but has a protrusion, its stability and levelness after placement will affect the test. Furthermore, during the test, the levelness of the base plate 1 and even the measuring container 4 can be adjusted by the support legs 2. Since the method given in Example 1 requires the lead ball 414 to move vertically downwards, ensuring that the movement path of the lead ball 414 is vertical and improving the accuracy of the test can be achieved by adjusting the levelness of the base plate 1 by the support legs 2.

[0082] like Figure 13 As shown, a pair of through holes 11 are provided on the base plate 1. Specifically, the cylinder 400 described in Embodiment 1 is placed on the base plate 1 with its opening facing upwards. (Refer to...) Figure 15 As shown, the first conductor 408 and the components for constraining it are inserted into the perforation 11 so that the lower end of the cylinder 400 abuts against the upper wall of the base plate 1.

[0083] like Figure 13As shown, the support leg 2 includes a lower convex plate 200 mounted on the lower side of the base plate 1 by screws. The lower end of the lower convex plate 200 is rotatably provided with a concave support 202 via a first shaft 201. The lower end of the concave support 202 is rotatably provided with a support head 204 via a second shaft 203. A support plate 205 is welded to the lower end of the support head 204. The concave support 202 has a first hole 206 on each side parallel to its length direction. A movable rod 207 is movably provided in the first hole 206. A moving head 208 is provided on the movable rod 207. A lead screw 209 is threadedly connected to the upper end of the moving head 208. The upper end of the lead screw 209 is rotatably mounted on the base plate 1. A first end cap 211 is fixed to the upper end of the lead screw 209 by a pin. A limit nut 210 is threadedly connected to the lower end of the lead screw 209. The first end cap 211 and the limit nut 210 are located on the upper and lower sides of the base plate 1.

[0084] In this embodiment, when adjusting the level of the base plate 1, the operator rotates the lead screw 209 through the first end cap 211, so that the lead screw 209 drives the moving head 208 to move. As the moving head 208 moves, the movable rod 207 at its lower end will act on the first hole 206, so that the concave support 202 rotates around the axial direction of the first shaft 201. When the concave support 202 rotates, it will adjust the level of the base plate 1.

[0085] Example 3

[0086] like Figure 12 As shown, the third type of lead-acid battery gel electrolyte gel degree detection device has a constraint mechanism 3 on the base plate 1 described in Example 2. Figure 13 and Figure 14 As shown, a plurality of pairs of guide holes 10 are arranged in a circular array around the geometric center of the base plate 1. The measuring container 4 described in Embodiment 1 is placed on the base plate 1, and the measuring container 4 is provided with a dispensing mechanism 5 as described in Embodiment 1. In this embodiment, it is considered that the measuring container 4 contains a corrosive colloidal electrolyte during the test. At the same time, the lead ball 414 will move in the colloidal electrolyte during the test. Therefore, ensuring the safety of the test process is particularly important. In addition, as described in Embodiment 1, the dispensing mechanism 5 is only placed on the measuring container 4. Therefore, this embodiment can also avoid the problem of the colloidal electrolyte splashing out due to the poor sealing when the lead ball 414 falls, which would lead to poor safety.

[0087] like Figure 14 and Figure 15As shown, the constraint mechanism 3 includes connecting rods 300 movably disposed within the guide hole 10. The upper ends of each pair of connecting rods 300 are threadedly connected to a movable upper plate 301. The movable upper plate 301 is located above the base plate 1. A constraint vertical member 302 is welded to the inner end of the movable upper plate 301. A circumferential arc plate 303 is fixed to the inner side of the constraint vertical member 302 by screws. The inner circumference of the circumferential arc plate 303 abuts against the outer circumference of the cylinder 400 described in Embodiment 1. The upper end of the constraint vertical member 302 is bent into an L-shaped constraint structure. Hook 304, the lower wall of the vertical section of the constraint hook 304 abuts against the upper end of the protrusion 501 described in Embodiment 1. The lower end of each pair of connecting rods 300 is threadedly connected to a push-pull vertical plate 307. A second vertically arranged hole 308 is opened on the push-pull vertical plate 307. A third shaft 309 is movably arranged in the second hole 308. Rotating arms 310 with an L-shaped structure are rotatably arranged at both ends of the third shaft 309. A fourth shaft 311 is rotatably arranged at the corner of the rotating arm 310. A lower extension arm 314 is rotatably arranged on the fourth shaft 311. The lower extension arm 314 is fixed to the base plate 1 with screws. The other end of the rotating arm 310 has a third hole 312 parallel to its length. A fifth shaft 315 is movably mounted within the third hole 312. A vertically positioned push-pull arm 321 is rotatably mounted on the fifth shaft 315. A push-pull frame 306 is mounted to the lower end of the push-pull arm 321 with screws. Multiple guide rods 305 pass through the push-pull frame 306, which is vertically positioned, and its upper end is threaded to the base plate 1. The lower side of the push-pull frame 306... A pull-out plate 317 is connected by a limiting screw 316. A pair of fourth holes 318 are provided on the pull-out plate 317. The rod part of the limiting screw 316 passes through the fourth hole 318, and the end cap of the limiting screw 316 is located on the lower side of the pull-out plate 317. An outer strip 319 is welded to the outer end of the pull-out plate 317. The two ends of the outer strip 319 are respectively connected to pins 320 by threads. The pins 320 are inserted into both sides of the push-pull frame 306 and the lower end of the guide rod 305 to lock the position of the push-pull frame 306.

[0088] The first shaft 201, the second shaft 203, the third shaft 309, the fourth shaft 311 and the fifth shaft 315 are axially limited at both ends by cotter pins or by threaded nuts.

[0089] In this embodiment, during operation, the operator places the measuring container 4 on the base plate 1.

[0090] Next, the operator places the dispensing mechanism 5 onto the measuring container 4.

[0091] Then the operator moves the push-pull frame 306 downward. When the push-pull frame 306 moves downward, it will drive the push-pull arm 321 and its fifth shaft 315 to move downward. When the fifth shaft 315 moves, it will act on the third hole 312, thereby causing the rotating arm 310 to rotate around the axial direction of the fourth shaft 311. When the rotating arm 310 rotates, it will abut against the inner wall of the second hole 308 through the third shaft 309, thereby causing the push-pull vertical plate 307 to move inward along the length direction of the guide hole 10, and causing the constraint vertical member 302 and the circumferential arc plate 303 to move inward. During the movement, the circumferential arc plate 303 will abut against the outer wall of the cylinder 400, and the lower wall of the vertical section of the constraint hook 304 will abut against the upper end of the protrusion 501. In this way, not only is the cylinder 400 constrained to prevent it from tipping over and causing a safety accident during the test, but the upper end of the cover 500 is also constrained and limited by the constraint hook 304 to improve the safety of the cover 500 after it is put on.

[0092] Finally, the operator needs to move the outer strip 319 inward so that the pin 320 can be inserted into both sides of the push-pull frame 306 and the lower end of the guide rod 305.

[0093] Example 4

[0094] A method for detecting the gel content of lead-acid battery gel electrolyte, which uses the lead-acid battery gel electrolyte gel content detection device described in the above embodiments, includes the following steps:

[0095] Step 1: Place the lead ball 414, made of lead, onto the insertion tube 502.

[0096] After insertion, the contact piece 518 abuts against the periphery of the lead ball 414 to form the first series circuit.

[0097] Step 2: Inject the colloidal electrolyte to be tested into the cylinder 400 so that the liquid level of the colloidal electrolyte is at the scale line marked on the cylinder 400.

[0098] Step 3: Place the top cover 500, which carries the lead ball 414 after the operation in Step 1, on the upper end of the cylinder 400.

[0099] Step 4: By holding the push handle 509 and the fixed handle 510, the limiting protrusion 550 is moved out of the annular groove 416 and into the window 541. At this time, the lead ball 414 moves downward under its own weight and the pushing force provided by the first springs 520 with equal elastic coefficients. After that, the lead ball 414 will move downward under the combined action of its own weight, the buoyancy provided by the colloidal electrolyte and the resistance provided by the colloidal electrolyte. At this time, since the lead ball 414 and the contact piece 518 are out of contact, the voltage data recorder 61 records the voltage change and the instant of voltage change T1 based on the voltage change at the moment of separation.

[0100] Step 5: Then the lead ball 414 enters the colloidal electrolyte so that the lead ball 414 and the colloidal electrolyte together form a load. Therefore, during this process, the voltage recorded by the voltage data recorder 61 is approximately constant. Although the resistance of the load changes with the different depths of the lead ball 414 in the colloidal electrolyte, the voltage is relatively constant overall.

[0101] Step 6: The lead ball 414 moves into the concave arc groove 405. At the same time, the protrusion 407 on the conductive plate 406 contacts the outer periphery of the lead ball 414. At the moment of contact, since the first wire I 4080 and the first wire II 4081 are directly connected to the lead ball 414, the voltage data recorder 61 records the time T2 of the voltage change based on the voltage change.

[0102] Step 7: By using the difference between time T2 and time T1, the duration t of the lead ball 414 moving within the tested colloidal electrolyte is determined. 测 ;

[0103] Step 8: Pour out the lead ball 414 and colloidal electrolyte from the cylinder 400, clean it, and then inject sulfuric acid of the same amount and concentration as the colloidal electrolyte being tested into the cylinder 400.

[0104] Step 9: Continue with steps 1 to 7, and calculate the time t for lead ball 414 to move in equal volume and concentration of sulfuric acid. 对 ;

[0105] Step 10, via t 测 and t 对 The ratio is used to determine the gelation degree of the colloidal electrolyte being tested.

[0106] This embodiment mainly obtains the optimal ratio of colloidal electrolyte by measuring its gelation degree. In order to explore the gelation degree of the colloidal electrolyte at different stages of charging and its impact on the performance of lead-acid batteries, the method provided in this embodiment is used to conduct multiple experiments.

[0107] During the experiment, colloidal electrolyte was extracted from inside the battery at different stages of charging, resulting in various colloidal electrolyte samples for testing. The sulfuric acid content of each sample was then measured, and corresponding concentrations of sulfuric acid solutions were prepared based on the measured sulfuric acid content. Next, the movement time of the lead ball 414 within each sample and its corresponding sulfuric acid solution was measured. The gelation degree of each sample was calculated, defined as the ratio of the lead ball 414's movement time within the sample to its corresponding sulfuric acid solution. After multiple experiments, it was found that gelation only occurred when the gelation degree was greater than 1.15; when the gelation degree was greater than 1.5, the performance of the tested colloidal electrolyte was deemed unqualified.

[0108] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and variations.

Claims

1. A device for detecting the gelation degree of lead-acid battery gel electrolyte, characterized in that, It includes a measuring container (4), and the upper end of the measuring container (4) is provided with a dispensing mechanism (5); The measuring container (4) includes a cylinder (400), with a first wire I (4080) and a first wire II (4081) at the lower end of the cylinder (400), and a lead ball (414) is movably disposed inside the cylinder (400). The colloidal electrolyte is contained in the cylinder (400). The dispensing mechanism (5) includes an upper cover (500) covering the upper end of the cylinder (400), an upper protruding connecting pipe (517) is formed on the upper cover (500), and a second wire I (5120) and a second wire II (5121) are provided on the upper cover (500). An insert tube (502) is fixed inside the upper connecting tube (517), and a lower plate (536) is provided at its bottom. At least one pair of windows (541) are opened on the outer periphery of the lower end of the insert tube (502). At least two pairs of constraint holes (542) are opened on the lower plate (536), and a moving rod (543) is movably installed inside it. A moving inner plate (549) is connected to the upper end of each pair of moving rods (543). The outer wall of the moving inner plate (549) is formed with a pair of windows (541) that are aligned with each other. A corresponding limiting protrusion (550) is provided, and the limiting protrusion (550) passes through the corresponding window (541); an outer connecting vertical plate (551) is welded to the inner wall of the movable inner plate (549), and two pairs of connecting plates (548) are respectively connected to its upper and lower ends through the sixth shaft (552). The other end of each pair of connecting plates (548) is connected to an inner connecting vertical plate (546) through the seventh shaft (547). A connecting sleeve (545) is formed on the inner side of the inner connecting vertical plate (546). It is internally connected to a lower connecting rod (533), and a middle connecting rod (531) is formed at the upper end of the lower connecting rod (533). An upper connecting rod (530) is provided at the upper end of the middle connecting rod (531). A movable disc (534) is sleeved on the upper connecting rod (530). The movable disc (534) is located inside the insertion tube (502). The upper connecting rod (530) is connected to a pull-out tube (528), the lower end of which abuts against the upper wall of the movable disc (534). The inner circumference of the upper end of the insertion tube (502) is connected to a... The end cap (503) and the pull tube (528) are coaxially inserted through the end cap (503). The pull tube (528) is fitted with a second spring (535). The second spring (535) is located between the movable plate (534) and the end cap (503). Before the lead ball (414) moves, the insertion tube (502) is inserted into the circular groove (415) on the lead ball (414), and the limiting protrusion (550) is stuck in the annular groove (416) opened on the inner circumference of the circular groove (415). The first wire I (4080) is connected to a DC power supply (60), the first wire II (4081) is connected to a voltage data recorder (61), the second wire I (5120) is connected to the DC power supply (60), and the second wire II (5121) is connected to the voltage data recorder (61). Before the lead ball (414) moves, the lead ball (414) is connected to the top cover (500), and the lead ball (414) is connected to the second wire I (5120) and the second wire II (5121); After the lead ball (414) moves, it moves to the lower end of the cylinder (400) in the colloidal electrolyte and is connected to the first wire I (4080) and the first wire II (4081).

2. The lead-acid battery gel electrolyte gel degree detection device according to claim 1, characterized in that, The lower end of the cylinder (400) is provided with a buffer pad (404), the upper end of the buffer pad (404) is formed with an inward concave arc groove (405), a pair of embedded grooves are provided on the arc surface of the inward concave arc groove (405), and a conductive plate (406) is fixed in the embedded groove. The first conductor I (4080) and the first conductor II (4081) are respectively welded to the outer wall of the conductive plate (406). The buffer pad (404) is formed with a pair of lower extension tubes (413). The first conductor I (4080) and the first conductor II (4081) pass through the lower extension tubes (413). The lower end of the cylinder (400) is symmetrically provided with a pair of connecting holes (402), and the lower extension tubes (413) pass through the connecting holes (402).

3. The lead-acid battery gel electrolyte gel degree detection device according to claim 2, characterized in that, The lower end of the connecting hole (402) is connected to the connecting protrusion (401), and the inner circumference of the connecting protrusion (401) is formed with a tapered hole (403), the diameter of the upper end of the tapered hole (403) is smaller than the diameter of its lower end; The lower end of the extension tube (413) extends out of the connecting convex tube (401). The lower end of the connecting convex tube (401) abuts against an end ring (411). The upper end of the end ring (411) is formed with a sealing cone ring (409). The outer circumference of the sealing cone ring (409) abuts against the inner circumference of the tapered hole (403). A sealing sleeve (410) is embedded in the inner circumference of the sealing cone ring (409). The end ring (411) and the sealing sleeve (410) are fitted onto the extension tube (413). The inner circumference of the sealing sleeve (410) abuts against the outer circumference of the extension tube (413). A sealing cap (412) is connected to the outer circumference of the connecting convex tube (401). The extension tube (413) passes through the bottom of the sealing cap (412). The inner wall of the lower end of the extension tube (413) abuts against the lower end of the end ring (411).

4. The lead-acid battery gel electrolyte gel degree detection device according to claim 2, characterized in that, The inner wall of the conductive plate (406) has multiple hemispherical protrusions (407).

5. The lead-acid battery gel electrolyte gel degree detection device according to claim 1, characterized in that, An inner column (513) is formed inside the top cover (500). There is an annular gap (514) between the outer periphery of the inner column (513) and the inner periphery of the top cover (500). The upper end of the cylinder (400) passes through the annular gap (514). An arc groove (515) is formed at the lower end of the inner column (513). A connecting hole (516) is opened on the arc groove (515). A pair of embedding grooves (523) are opened on the arc surface of the arc groove (515). An external connecting hole (524) is opened at the bottom of the embedding groove (523). The upper end of the external connecting hole (524) passes through the top cover (500). A contact piece (518) is fixed in the embedding groove (523). The second wire I (5120) and the second wire II (5121) are respectively welded to the contact piece (518) and pass out from the external connecting hole (524).

6. The lead-acid battery gel electrolyte gel degree detection device according to claim 1, characterized in that, A connecting seat (504) is fixed at the upper end of the insertion tube (502). An upper protrusion (505) is fixed on the connecting seat (504). Swing side plates (507) are provided on both sides of the upper protrusion (505) via the eighth axis (506). A sixth hole (508) is provided on the swing side plate (507). A ninth axis (527) is movably provided in the sixth hole (508). A connecting end (526) is connected to the ninth axis (527). The lower end of the connecting end (526) is connected to the upper end of the pull tube (528). A push handle (509) is formed on the outer end of the swing side plate (507). A fixed handle (510) is fixed on the upper protrusion (505). The fixed handle (510) is located directly below the push handle (509).

7. The lead-acid battery gel electrolyte gel degree detection device according to claim 1, characterized in that, A pointed conical groove (417) is provided at the bottom of the circular groove (415), and the diameter of the upper end of the pointed conical groove (417) is smaller than the diameter of its lower end; The lower plate (536) is formed with an internally threaded tube (537), the internally threaded tube (537) is connected to a connecting post (538), the lower end of the connecting post (538) is formed with a base plate (539), the lower end of the base plate (539) is formed with a pointed cone (540), the diameter of the lower end of the pointed cone (540) is smaller than the diameter of its upper end, and the pointed cone (540) is inserted into the pointed cone groove (417).

8. The lead-acid battery gel electrolyte gel degree detection device according to claim 5, characterized in that, Multiple fan-shaped holes (521) are arranged in a circular array on the arc surface of the arc groove (515). An oblique hole (522) is provided at the bottom of the fan-shaped hole (521). The axial direction of the oblique hole (522) intersects the center of the arc groove (515). An inner pressure rod (511) is inserted in the oblique hole (522). The inner end of the inner pressure rod (511) is connected to a top plate (519). The top plate (519) is located in the fan-shaped hole (521). A first spring (520) is sleeved on the inner pressure rod (511). One end of the first spring (520) abuts against the outer wall of the top plate (519), and the other end abuts against the bottom of the fan-shaped hole (521). The outer end of the inner pressure rod (511) extends out of the top cover (500).

9. A method for detecting the gelation degree of lead-acid battery gel electrolyte, characterized in that, The gel degree of lead-acid battery gel electrolyte is detected using the gel degree detection device as described in any one of claims 1-8, comprising the following steps: Step 1, connect the lead ball (414) to the top cover (500) so that the lead ball (414) is connected to the second wire I (5120) and the second wire II (5121); Step 2: Inject the colloidal electrolyte to be tested into the cylinder (400); Step 3: Place the top cover (500) containing the lead ball (414) on the upper end of the cylinder (400); Step 4: Disconnect the lead ball (414) and the top cover (500). When disconnected, the voltage data recorder (61) records the time T1 when the voltage changes. Step 5, the lead ball (414) moves downward to the bottom of the cylinder (400) in the colloidal electrolyte to be tested. When it makes contact, the voltage data recorder (61) records the time T2 when the voltage changes. Step 6: By using the difference between time T2 and time T1, the duration t of the lead ball (414) moving in the colloidal electrolyte to be tested is obtained. 测 ; Step 7: Pour out the lead ball (414) and the colloidal electrolyte to be tested from the cylinder (400), clean the cylinder (400) and the lead ball (414), and then inject sulfuric acid of the same amount and concentration as the colloidal electrolyte to be tested into the cylinder (400); Step 8: Continue with steps 1 to 6, and calculate the time t for the lead ball (414) to move in equal volume and concentration of sulfuric acid. 对 ; Step 9, via t 测 and t 对 The ratio is used to determine the gelation degree of the colloidal electrolyte to be tested.

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