PH gradient adjusting device

Abstract

The utility model relates to the technical field of water electrolysis hydrogen production, and discloses a pH gradient adjusting device which comprises an electrolysis tank, a liquid storage tank and a stirring barrel, the electrolysis tank is communicated with the liquid storage tank through a first water pump and a first water pipe, and the liquid storage tank is communicated with the bottom end of the stirring barrel through a second water pump and a second water pipe. One side of the top of the stirring barrel is communicated with a water inlet pipe, the water inlet pipe is externally connected with water supply equipment, the other side of the top of the stirring barrel is communicated with a feeding pipe, a quantitative discharging mechanism is arranged on one side of the feeding pipe, and a stirring mechanism is arranged in the stirring barrel. The weight of alkaline materials entering the stirring barrel can be controlled by controlling the number of times that the air cylinder drives the quantitative pipe to move back and forth, the amount of water entering the stirring barrel is controlled in cooperation with the liquid level sensor, the concentration of prepared alkaline liquor can be conveniently controlled by workers, and then the PH value in the electrolysis box can be conveniently controlled.

Description

Technical Field

[0001] This utility model relates to the field of water electrolysis for hydrogen production technology, specifically a pH gradient adjustment device. Background Technology

[0002] Because the combustion product of hydrogen is water, which does not pollute the environment, hydrogen is considered an ideal clean energy source. Currently, water electrolysis is widely used as a low-cost method for hydrogen production.

[0003] In the existing technology, when the alkaline solution in the storage tank is insufficient to replenish the electrolysis tank, the staff needs to manually weigh the alkaline materials and water to complete the mixing of the alkaline solution. However, this manual weighing method is prone to errors, which leads to deviations in the concentration of the alkaline solution and thus affects the pH value in the electrolysis tank. Utility Model Content

[0004] The purpose of this invention is to provide a pH gradient adjustment device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A pH gradient adjustment device includes an electrolysis tank, a storage tank, and a stirring drum. The electrolysis tank and the storage tank are connected by a water pump and a water pipe. The storage tank and the bottom of the stirring drum are connected by a water pump and a water pipe. A water inlet pipe is connected to one side of the top of the stirring drum, and the water inlet pipe is connected to a water supply device. A feed pipe is connected to the other side of the top of the stirring drum. A quantitative feeding mechanism is provided on one side of the feed pipe. A stirring mechanism is provided inside the stirring drum. A liquid level sensor is fixedly installed on the top of the stirring drum.

[0006] The feeding mechanism includes a cylinder and a metering tube. The cylinder is fixedly installed on the side wall of the mixing drum. The output end of the cylinder is fixedly connected to the metering tube. The top and bottom of the metering tube are open. A first clamping plate is fixedly connected to the top outer wall of the metering tube. A second clamping plate is fixedly connected to the bottom outer wall of the metering tube. A feeding hopper is provided above the metering tube. The feeding hopper is fixed to the side wall of the mixing drum. A baffle is fixedly connected to the top outer wall of the feeding pipe. The bottom end of the metering tube is in contact with the top of the baffle.

[0007] The stirring mechanism includes a motor and a stirrer. The motor is fixedly installed at the top center of the stirring drum, and the output end of the motor extends into the inner cavity of the stirring drum and is fixedly connected to the stirrer.

[0008] Preferably, a mounting base is fixedly connected to the top of the mixing drum, a second motor is fixedly mounted on the top of the mounting base, a rotating shaft is fixedly connected to the output end of the second motor, a bracket is fixedly connected to the side wall of the mounting base, a lead screw is rotatably connected to the bracket, a threaded sleeve is threadedly connected to the lead screw, a mounting block is rotatably connected to the threaded sleeve, a guide rod is fixedly connected to the bracket, the mounting block and the guide rod are slidably connected, the rotating shaft and the lead screw are driven by a transmission assembly, a pressure plate is provided above the hopper, and the mounting block and the pressure plate are fixedly connected by a connecting rod.

[0009] Preferably, a reciprocating screw is rotatably connected to the bracket, a guide rod two is fixedly connected to the bracket, a mounting block two is slidably connected to the guide rod two, a slider is movably connected to the mounting block two, the slider is slidably connected to the reciprocating thread groove on the reciprocating screw, a pressure plate two is provided above the feed pipe, and the pressure plate two is fixedly connected to the mounting block two through a connecting rod two.

[0010] Preferably, the transmission assembly includes a sleeve, an electromagnet, and a permanent magnet. The sleeve is fixedly connected to the top of the rotating shaft. A first support shaft is provided above the sleeve, and a first spur gear is fixedly connected to the first support shaft. A second support shaft is provided below the sleeve, and a second spur gear is fixedly connected to the second support shaft. Both the first and second support shafts are rotatably connected to the bracket. The rotating shaft passes through the second support shaft. A third spur gear is fixedly connected to the bottom of the lead screw, and the third spur gear meshes with the first spur gear. A fourth spur gear is fixedly connected to the bottom of the reciprocating lead screw, and the fourth spur gear meshes with the second spur gear. Multiple sets of sliding grooves are provided at the top and bottom of the sleeve. An electromagnet is fixedly connected to the bottom of the inner cavity of the sleeve, and a permanent magnet is attached to the electromagnet. Multiple sets of limiting rods are fixedly connected to the top and bottom of the permanent magnet. The end of the limiting rod away from the permanent magnet extends through the sliding groove to the outside of the sleeve. A spring is fixedly connected between the top of the permanent magnet and the top of the inner cavity of the sleeve.

[0011] Preferably, the bottom end of the first support shaft is provided with multiple sets of slots, the top end of the second support shaft is provided with multiple sets of slots, the limiting rod is provided with a locking block, the locking block is adapted to both slots one and slot two, the inner wall of the sleeve is provided with multiple sets of vertical grooves, the outer wall of the permanent magnet is provided with a protrusion, and the protrusion is slidably connected to the vertical groove.

[0012] Preferably, a plurality of top rods are uniformly fixed to the bottom end of the pressure plate two, and the bottom end of the top rods is conical.

[0013] Preferably, a scraper ring is fixedly connected to the bottom of the inner cavity of the hopper, and the cross-section of the scraper ring is triangular.

[0014] Preferably, a scraper ring 2 is fixedly connected to the bottom of the inner cavity of the metering tube, and the cross-section of the scraper ring 2 is triangular.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. By controlling the number of times the cylinder drives the metering tube to move back and forth, the weight of the alkaline material entering the stirring drum can be controlled. In addition, the amount of water entering the stirring drum can be controlled by the liquid level sensor, which makes it easier for the staff to control the concentration of the alkaline solution and thus the pH value in the electrolysis tank.

[0017] 2. The rotating shaft is driven by motor 2 and then the lead screw is driven by the transmission assembly. This causes the lead sleeve to move the mounting block 1 downward along the guide rod 1. This causes the connecting rod 1 to move the pressure plate 1 downward and push the material in the hopper into the metering tube, thus preventing the metering tube from being not filled with material and causing weight deviation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0019] Figure 2 This is a cross-sectional schematic diagram of the stirring cylinder of this utility model;

[0020] Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle;

[0021] Figure 4 This is a schematic diagram of the mounting base of this utility model;

[0022] Figure 5 for Figure 4 Enlarged view of a section at point B in the middle;

[0023] Figure 6 This is an exploded view of the sleeve portion of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Electrolysis tank; 2. Storage tank; 3. Stirring drum; 4. Motor 1; 5. Stirrer; 6. Water inlet pipe; 7. Liquid level sensor; 8. Feed pipe; 9. Hopper; 10. Cylinder; 11. Metering tube; 12. Material clamping plate 1; 13. Material clamping plate 2; 14. Mounting base; 15. Motor 2; 16. Bracket; 17. Rotating shaft; 18. Sleeve; 19. Slide groove; 20. Electromagnet; 21. Permanent magnet; 22. Spring; 23. Limiting rod; 24. Support shaft 1; 25. Spur Gear 1; 26. Slot 1; 27. Support Shaft 2; 28. Spur Gear 2; 29. ​​Slot 2; 30. Spur Gear 3; 31. Lead Screw; 32. Guide Rod 1; 33. Screw Sleeve; 34. Mounting Block 1; 35. Spur Gear 4; 36. Reciprocating Lead Screw; 37. Guide Rod 2; 38. Mounting Block 2; 39. Slider; 40. Connecting Rod 1; 41. Pressure Plate 1; 42. Connecting Rod 2; 43. Pressure Plate 2; 44. Top Rod; 45. Baffle. Detailed Implementation

[0026] To explain in detail the technical content, structural features, objectives, and effects of the technical solution, the following description is provided in conjunction with specific embodiments and accompanying drawings.

[0027] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0028] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0029] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0030] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0031] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0032] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0033] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0034] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0035] Please see Figures 1-6 As shown, a pH gradient adjustment device includes an electrolysis tank 1, a storage tank 2, and a stirring drum 3. The electrolysis tank 1 and the storage tank 2 are connected by a water pump and a water pipe. The storage tank 2 and the bottom of the stirring drum 3 are connected by a water pump and a water pipe. A water inlet pipe 6 is connected to one side of the top of the stirring drum 3, and the water inlet pipe 6 is connected to a water supply device. A feed pipe 8 is connected to the other side of the top of the stirring drum 3. A quantitative feeding mechanism is provided on one side of the feed pipe 8. A stirring mechanism is provided inside the stirring drum 3. A liquid level sensor 7 is fixedly installed on the top of the stirring drum 3.

[0036] The feeding mechanism includes a cylinder 10 and a metering tube 11. The cylinder 10 is fixedly installed on the side wall of the mixing drum 3. The output end of the cylinder 10 is fixedly connected to the metering tube 11. The top and bottom of the metering tube 11 are open. A first clamping plate 12 is fixedly connected to the top outer wall of the metering tube 11. A second clamping plate 13 is fixedly connected to the bottom outer wall of the metering tube 11. A feeding hopper 9 is provided above the metering tube 11. The feeding hopper 9 is fixed on the side wall of the mixing drum 3. A baffle 45 is fixedly connected to the top outer wall of the feeding pipe 8. The bottom end of the metering tube 11 is in contact with the top of the baffle 45.

[0037] The stirring mechanism includes a motor 4 and a stirrer 5. The motor 4 is fixedly installed at the top center of the stirring drum 3. The output end of the motor 4 extends into the inner cavity of the stirring drum 3 and is fixedly connected to the stirrer 5.

[0038] During operation, when the alkali solution in the storage tank 2 is insufficient to replenish the alkali solution in the electrolysis tank 1, the water inlet pipe 6 is connected to an external water supply device to supply water to the stirring drum 3. The water volume in the stirring drum 3 can be controlled by the liquid level sensor 7. The cylinder 10 is activated, which drives the metering tube 11 to move from the bottom of the discharge hopper 9 to the feed pipe 8. At the same time, the first clamping plate 12 and the second clamping plate 13 move accordingly. The first clamping plate 12 can block the discharge hopper 9. When the metering tube 11 is in contact with the feed pipe 8, the alkaline material in the metering tube 11 falls from the feed pipe 8 into the stirring drum 3. Afterward, the cylinder 10 drives the metering tube 11 to slide back to the bottom of the discharge hopper 9, and the second clamping plate 13 no longer blocks the discharge hopper 9. At the same time, the baffle 45 seals the bottom of the metering tube 11, allowing the material in the discharge hopper 9 to re-enter the metering tube 11. When the metering tube 11 is filled with material again... The cylinder 10 then moves the metering tube 11 above the feed pipe 8 to complete the feeding again. This process is repeated. By controlling the number of times the cylinder 10 moves the metering tube 11 back and forth, the weight of the alkaline material entering the mixing drum 3 can be controlled. In conjunction with the liquid level sensor 7, the amount of water entering the mixing drum 3 can be controlled, making it easier for the operator to control the concentration of the alkaline solution and thus the pH value in the electrolysis tank 1. The motor 4 drives the stirrer 5 to rotate, which can quickly mix the material and water. The above structure solves the problem in the prior art where, when the alkaline solution in the storage tank 2 is insufficient to replenish the electrolysis tank 1, the operator needs to manually weigh the alkaline material and water to complete the mixing of the alkaline solution. However, this manual weighing method is prone to errors, resulting in deviations in the concentration of the alkaline solution and thus affecting the pH value in the electrolysis tank 1.

[0039] Furthermore, a mounting base 14 is fixedly connected to the top of the mixing drum 3, a motor 15 is fixedly installed on the top of the mounting base 14, a rotating shaft 17 is fixedly connected to the output end of the motor 15, a bracket 16 is fixedly connected to the side wall of the mounting base 14, a lead screw 31 is rotatably connected to the bracket 16, a threaded sleeve 33 is threadedly connected to the lead screw 31, a mounting block 34 is rotatably connected to the threaded sleeve 33, a guide rod 32 is fixedly connected to the bracket 16, the mounting block 34 is slidably connected to the guide rod 32, the rotating shaft 17 and the lead screw 31 are driven by a transmission assembly, a pressure plate 41 is provided above the hopper 9, and the mounting block 34 and the pressure plate 41 are fixedly connected by a connecting rod 40.

[0040] During operation, when the hopper 9 feeds material into the metering tube 11, the motor 15 drives the rotating shaft 17 to rotate, and the transmission assembly drives the lead screw 31 to rotate, causing the lead sleeve 33 to drive the mounting block 34 to move down along the guide rod 32. Then, the connecting rod 40 pushes the pressure plate 41 to push the material in the hopper 9 into the metering tube 11, so as to avoid the metering tube 11 not being filled with material, which would cause a weight deviation.

[0041] Furthermore, a reciprocating screw 36 is rotatably connected to the bracket 16, a guide rod 37 is fixedly connected to the bracket 16, a mounting block 38 is slidably connected to the guide rod 37, a slider 39 is movably connected to the mounting block 38, and the slider 39 is slidably connected to the reciprocating thread groove on the reciprocating screw 36. A pressure plate 43 is provided above the feed pipe 8, and the pressure plate 43 is fixedly connected to the mounting block 38 through a connecting rod 42.

[0042] During operation, when the metering tube 11 moves to the feed tube 8, the motor 15 drives the rotating shaft 17 to rotate, which in turn drives the reciprocating screw 36 to rotate. This causes the mounting block 38 to slide up and down along the guide rod 37 under the action of the slider 39. Consequently, the connecting rod 42 drives the pressure plate 43 to slide up and down, pushing the material in the metering tube 11 into the mixing drum 3, thus achieving rapid feeding.

[0043] Furthermore, the transmission assembly includes a sleeve 18, an electromagnet 20, and a permanent magnet 21. The sleeve 18 is fixedly connected to the top of the rotating shaft 17. A support shaft 24 is provided above the sleeve 18, and a spur gear 25 is fixedly connected to the support shaft 24. A support shaft 27 is provided below the sleeve 18, and a spur gear 28 is fixedly connected to the support shaft 27. Both the support shaft 24 and the support shaft 27 are rotatably connected to the bracket 16. The rotating shaft 17 passes through the support shaft 27. A spur gear 30 is fixedly connected to the bottom of the lead screw 31, and the spur gear 30 meshes with the spur gear 25. A spur gear 4 35 is fixedly connected to the bottom end of the reciprocating screw 36. The spur gear 4 35 meshes with the spur gear 28. Multiple sets of sliding grooves 19 are opened at the top and bottom of the sleeve 18. An electromagnet 20 is fixedly connected to the bottom of the inner cavity of the sleeve 18. A permanent magnet 21 is attached to the electromagnet 20. Multiple sets of limiting rods 23 are fixedly connected to the top and bottom of the permanent magnet 21. The end of the limiting rod 23 away from the permanent magnet 21 extends through the sliding groove 19 to the outside of the sleeve 18. A spring 22 is fixedly connected between the top of the permanent magnet 21 and the top of the inner cavity of the sleeve 18.

[0044] During operation, when the pressure plate 41 needs to move, the electromagnet 20 is energized. The permanent magnet 21 is driven upward by magnetic repulsion to squeeze the spring 22. At the same time, the limiting rod 23 above the permanent magnet 21 slides out of the sleeve 18 and engages with the support shaft 24, causing the support shaft 24 and the spur gear 25 to rotate. The spur gear 30 then drives the lead screw 31 to rotate. During this process, the support shaft 27 does not rotate. By controlling the forward and reverse rotation of the motor 2 15, the pressure plate 41 can move up and down. When the pressure plate 43 needs to move, the electromagnet 20 is de-energized. The spring force of the spring 22 drives the permanent magnet 21 to reset, causing the limiting rod 23 below the permanent magnet 21 to slide out of the sleeve 18 and engage with the support shaft 27. The support shaft 27 and the spur gear 28 rotate, causing the spur gear 35 to drive the reciprocating lead screw 36 to rotate, thereby causing the pressure plate 43 to move up and down.

[0045] Furthermore, the bottom end of the support shaft 24 is provided with multiple sets of slots 26, the top end of the support shaft 27 is provided with multiple sets of slots 29, the limiting rod 23 is provided with a locking block, the locking block is compatible with both slots 26 and slots 29, the inner wall of the sleeve 18 is provided with multiple sets of vertical grooves, and the outer wall of the permanent magnet 21 is provided with a protrusion, which is slidably connected to the vertical grooves.

[0046] During operation, the locking block on the limiting rod 23 cooperates with the locking slot 26 and the locking slot 29, which facilitates the limiting rod 23 to drive the support shaft 24 and the support shaft 27 to rotate. Through the sliding cooperation between the protrusion on the permanent magnet 21 and the vertical groove, the permanent magnet 21 drives the limiting rod 23 to rotate when the sleeve 18 rotates with the rotating shaft 17.

[0047] Furthermore, multiple push rods 44 are evenly fixed to the bottom end of the pressure plate 43, and the bottom end of the push rods 44 is conical.

[0048] During operation, the push rod 44 provided at the bottom of the pressure plate 2 43 can play a role in loosening the material in the metering tube 11 when the pressure plate 2 43 pushes the material.

[0049] Furthermore, a scraper ring is fixedly connected to the bottom of the inner cavity of the hopper 9, and the cross-section of the scraper ring is triangular.

[0050] During operation, the scraper ring can be used to clean the metering tube 11 when it leaves the hopper 9, preventing any residual material from leaking out.

[0051] Furthermore, a scraper ring 2 is fixedly connected to the bottom of the inner cavity of the metering tube 11. The cross-section of the scraper ring 2 is triangular. During operation, the scraper ring 2 provided inside the metering tube 11 can scrape the material on the baffle 45 when the metering tube 11 moves.

[0052] Working principle: When the alkali solution in the storage tank 2 is insufficient to replenish the alkali solution in the electrolysis tank 1, the water inlet pipe 6 is connected to an external water supply device to supply water to the stirring drum 3. The water volume in the stirring drum 3 can be controlled by the liquid level sensor 7. The cylinder 10 is activated, which drives the metering tube 11 to move from the bottom of the feed hopper 9 to the feed pipe 8. At the same time, the first clamping plate 12 and the second clamping plate 13 move accordingly. The first clamping plate 12 can block the feed hopper 9. When the metering tube 11 is in contact with the feed pipe 8, the alkaline material in the metering tube 11 falls from the feed pipe 8 into the stirring drum 3. Afterwards, the cylinder 10 drives the metering tube 11 to slide back to the bottom of the feed hopper 9, and the second clamping plate 13 no longer blocks the feed hopper 9. At the same time, the baffle 45 controls the metering tube. The bottom of tube 11 is sealed to allow material in hopper 9 to re-enter the metering tube 11. When the metering tube 11 is filled with material again, cylinder 10 moves the metering tube 11 above the feed pipe 8 to complete the re-feeding. This process is repeated. By controlling the number of times cylinder 10 moves the metering tube 11 back and forth, the weight of alkaline material entering the mixing drum 3 can be controlled. Combined with level sensor 7 to control the amount of water entering the mixing drum 3, it is convenient for operators to control the concentration of the prepared alkali solution. When hopper 9 feeds material into metering tube 11, motor 2 15 drives shaft 17 to rotate, which in turn drives screw 31 to rotate, causing sleeve 33 to move mounting block 34 along guide rod 32. The connecting rod 40 slides downwards, causing the pressure plate 41 to slide downwards and push the material in the hopper 9 into the metering tube 11, preventing the metering tube 11 from being unfilled. When the metering tube 11 moves to the feed pipe 8, the motor 15 drives the rotating shaft 17 to rotate, which in turn drives the reciprocating screw 36 to rotate. This causes the mounting block 38 to slide up and down along the guide rod 37 under the action of the slider 39, which in turn causes the connecting rod 42 to drive the pressure plate 43 to slide up and down, pushing the material in the metering tube 11 into the mixing drum 3, achieving rapid feeding. When the pressure plate 41 needs to move, the electromagnet 20 is energized, and the permanent magnet 21 is driven upwards by magnetic repulsion, squeezing the spring 22 at the same time. The limiting rod 23 located above the permanent magnet 21 slides out of the sleeve 18 and engages with the support shaft 24, driving the support shaft 24 and the spur gear 25 to rotate. The spur gear 30 then drives the lead screw 31 to rotate. During this process, the support shaft 27 does not rotate. By controlling the forward and reverse rotation of the motor 25, the pressure plate 41 can move up and down. When the pressure plate 43 needs to move, the electromagnet 20 is de-energized. The spring force of the spring 22 drives the permanent magnet 21 to reset, causing the limiting rod 23 located below the permanent magnet 21 to slide out of the sleeve 18 and engage with the support shaft 27. The support shaft 27 and the spur gear 28 rotate, causing the spur gear 35 to drive the reciprocating lead screw 36 to rotate, thereby enabling the pressure plate 43 to reciprocate up and down.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pH gradient adjustment device, comprising an electrolysis tank (1), a storage tank (2), and a stirring drum (3), wherein the electrolysis tank (1) and the storage tank (2) are connected by a water pump and a water pipe, and the bottom end of the storage tank (2) and the stirring drum (3) are connected by a water pump and a water pipe, characterized in that: The top side of the mixing drum (3) is connected to a water inlet pipe (6), which is connected to a water supply device. The other side of the top of the mixing drum (3) is connected to a feed pipe (8), which is provided with a quantitative feeding mechanism on one side. The mixing drum (3) is equipped with a stirring mechanism, and a liquid level sensor (7) is fixedly installed on the top of the mixing drum (3). The feeding mechanism includes a cylinder (10) and a metering tube (11). The cylinder (10) is fixedly installed on the side wall of the mixing drum (3). The output end of the cylinder (10) is fixedly connected to the metering tube (11). The top and bottom of the metering tube (11) are open. A first clamping plate (12) is fixedly connected to the top outer wall of the metering tube (11). A second clamping plate (13) is fixedly connected to the bottom outer wall of the metering tube (11). A feeding hopper (9) is provided above the metering tube (11). The feeding hopper (9) is fixed on the side wall of the mixing drum (3). A baffle (45) is fixedly connected to the top outer wall of the feeding pipe (8). The bottom end of the metering tube (11) is in contact with the top of the baffle (45). The stirring mechanism includes a motor (4) and a stirrer (5). The motor (4) is fixedly installed at the top center of the stirring cylinder (3). The output end of the motor (4) extends into the inner cavity of the stirring cylinder (3) and is fixedly connected to the stirrer (5).

2. The pH gradient adjustment device according to claim 1, characterized in that: The top of the mixing drum (3) is fixedly connected to a mounting base (14), and a second motor (15) is fixedly installed on the top of the mounting base (14). A rotating shaft (17) is fixedly connected to the output end of the second motor (15). A bracket (16) is fixedly connected to the side wall of the mounting base (14). A lead screw (31) is rotatably connected to the bracket (16). A threaded sleeve (33) is threadedly connected to the lead screw (31). A mounting block (34) is rotatably connected to the threaded sleeve (33). A guide rod (32) is fixedly connected to the bracket (16). The mounting block (34) and the guide rod (32) are slidably connected. The rotating shaft (17) and the lead screw (31) are driven by a transmission assembly. A pressure plate (41) is provided above the hopper (9). The mounting block (34) and the pressure plate (41) are fixedly connected by a connecting rod (40).

3. The pH gradient adjustment device according to claim 2, characterized in that: A reciprocating screw (36) is rotatably connected to the bracket (16). A guide rod (37) is fixedly connected to the bracket (16). A mounting block (38) is slidably connected to the guide rod (37). A slider (39) is movably connected to the mounting block (38). The slider (39) is slidably connected to the reciprocating thread groove on the reciprocating screw (36). A pressure plate (43) is provided above the feed pipe (8). The pressure plate (43) and the mounting block (38) are fixedly connected by a connecting rod (42).

4. The pH gradient adjustment device according to claim 3, characterized in that: The transmission assembly includes a sleeve (18), an electromagnet (20), and a permanent magnet (21). The top end of the rotating shaft (17) is fixedly connected to the sleeve (18). A support shaft 1 (24) is provided above the sleeve (18), and a spur gear 1 (25) is fixedly connected to the support shaft 1 (24). A support shaft 2 (27) is provided below the sleeve (18), and a spur gear 2 (28) is fixedly connected to the support shaft 2 (27). Both the support shaft 1 (24) and the support shaft 2 (27) are rotatably connected to the bracket (16). The rotating shaft (17) passes through the support shaft 2 (27). A spur gear 3 (30) is fixedly connected to the bottom end of the lead screw (31), and the spur gear 3 (30) meshes with the spur gear 1 (25). The reciprocating screw (36) is connected to a spur gear four (35) at its bottom end. The spur gear four (35) meshes with the spur gear two (28). The top and bottom of the sleeve (18) are provided with multiple sets of sliding grooves (19). An electromagnet (20) is fixed to the bottom of the inner cavity of the sleeve (18). A permanent magnet (21) is attached to the electromagnet (20). The top and bottom of the permanent magnet (21) are fixed with multiple sets of limiting rods (23). The end of the limiting rod (23) away from the permanent magnet (21) extends through the sliding groove (19) to the outside of the sleeve (18). A spring (22) is fixed between the top of the permanent magnet (21) and the top of the inner cavity of the sleeve (18).

5. A pH gradient adjustment device according to claim 4, characterized in that: The bottom end of the first support shaft (24) is provided with multiple sets of first slots (26), the top end of the second support shaft (27) is provided with multiple sets of second slots (29), the limiting rod (23) is provided with a locking block, the locking block is compatible with both the first slot (26) and the second slot (29), the inner wall of the sleeve (18) is provided with multiple sets of vertical grooves, the outer wall of the permanent magnet (21) is provided with a protrusion, and the protrusion is slidably connected to the vertical groove.

6. The pH gradient adjustment device according to claim 5, characterized in that: The bottom end of the pressure plate (43) is uniformly fixed with multiple top rods (44), and the bottom end of the top rods (44) is conical.

7. A pH gradient adjustment device according to claim 6, characterized in that: The bottom of the inner cavity of the hopper (9) is fixed with a scraper ring, and the cross-section of the scraper ring is triangular.

8. A pH gradient adjustment device according to claim 7, characterized in that: The bottom of the inner cavity of the metering tube (11) is fixed with a scraper ring II, and the cross-section of the scraper ring II is triangular.

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