An online pH detection and adjustment device for glutaraldehyde solutions

Abstract

This invention discloses an online pH detection and adjustment device for glutaraldehyde solutions, comprising an adjustment tank, a motor, an addition tank, a stirring head, a throttle, a detector, a detection head, a delivery pipe, and a delivery head. The motor is fixedly installed on the top of the adjustment tank, and its output end rotates through the top of the adjustment tank. The addition tank is fixedly installed on the top of the adjustment tank and includes a first tank and a second tank. The delivery head is in contact with the interior of the liquid inside the adjustment tank. The detection and adjustment device includes a control device for controlling the addition of solution from the addition tank into the adjustment tank, which is installed on the inner wall of the adjustment tank. If the throttle can be rotated directly, an unintentional scratch could lead to accidental addition of the solution and damage. The engagement of the limiting block and the fixing block physically locks the throttle, preventing it from responding to any direct rotational force, thus eliminating the risk of accidental addition of the regulator to the adjustment tank due to accidental scratches in the working environment or unintentional touches by non-professionals.

Description

Technical Field

[0001] This invention relates to the field of online detection and adjustment technology, specifically to an online detection and adjustment device for the pH value of glutaraldehyde solutions. Background Technology

[0002] Glutaraldehyde solutions, as highly efficient and broad-spectrum disinfectants, are widely used in medical device disinfection, biosafety laboratory sterilization, and certain industrial processes. Their bactericidal activity is highly dependent on the pH value of the solution; typically, the pH value of alkaline activated glutaraldehyde needs to be precisely maintained within a certain range (e.g., 7.5-8.5) to achieve optimal effect and maintain stability. Therefore, real-time monitoring and precise adjustment of the pH value of glutaraldehyde solutions are crucial for ensuring disinfection efficacy, extending solution lifespan, and ensuring operational safety.

[0003] Patent publication number CN208505943U relates to the field of online detection and adjustment technology. It includes a controller, a pH electrode connected to the controller, a support tube, and a height adjustment component. The top of the pH electrode is threaded, and the lower end of the support tube has a threaded sleeve that is threaded to the threaded end. The electrical plug of the pH electrode passes through the support tube and connects to the controller. The height adjustment component is used to install between the device containing wastewater and the support tube and to adjust the height of the support tube. The height of the support tube can be adjusted via the height adjustment component. Because the top of the pH electrode has a threaded end that matches the threaded sleeve on the support tube, the pH electrode can be stably installed on the support tube. Finally, when measuring the pH value of wastewater at different depths, the pH electrode can be moved up and down, enabling stable measurement of the pH value of wastewater at different depths.

[0004] The aforementioned patent enables the pH electrode to move up and down, achieving stable measurement of pH values ​​at different depths of wastewater. While existing technologies can manually or semi-automatically adjust the acidity or alkalinity of disinfectants, their operating mechanisms lack necessary safety locks and anti-accidental contact designs. Operating knobs or handles are typically exposed directly to the outside of the equipment, making them highly susceptible to accidental contact with clothing, cleaning tools, or vibrations during busy disinfection operations. This can lead to the accidental addition of acid-base regulators into the storage tank. Such accidental addition can instantly disrupt the stability of the glutaraldehyde solution, causing ineffective polymerization or changes in composition, potentially rendering the disinfectant ineffective and posing a serious biosafety risk. Furthermore, the dosing pipeline connections often use simple valves or pressure-dependent one-way valves, which lack reliability in sealing and consistency of action. This can lead to leaks, inaccurate dosages, or residue at the interfaces, further affecting adjustment accuracy and the cleanliness and safety of the operating environment, thus reducing the overall reliability, economy, and safety of the equipment. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an online pH detection and adjustment device for glutaraldehyde solutions, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an online pH detection and adjustment device for glutaraldehyde solutions, comprising an adjustment tank, a motor, an addition tank, a stirring head, a throttle, a detector, a detection head, a delivery pipe, and a delivery head. The motor is fixedly mounted on the top of the adjustment tank, with its output end rotating through the top of the tank. The addition tank is fixedly mounted on the top of the adjustment tank and includes a first tank and a second tank. The first tank is used to hold sodium bicarbonate solution, and the second tank is used to hold citric acid solution. The stirring head is fixedly connected to the fixed end of the motor. The throttle rotates through the inner wall of the adjustment tank. The detector is fixedly mounted on the outer wall of the adjustment tank, and the detection head is slidably mounted on the inner wall of the adjustment tank. The detection head is electrically connected to the detector and is used to detect the pH value of the liquid inside the adjustment tank. The addition tank is connected to the interior of the adjustment tank via the delivery pipe. The delivery head is fixedly mounted on the inner wall of the adjustment tank and is in contact with the interior of the liquid inside the adjustment tank. The detection and adjustment device includes: A control device for controlling the addition of solution from the addition tank to the regulating tank is installed on the inner wall of the regulating tank; A rotating rod is rotatably mounted on the outer wall of a throttle handle. A push block is fixedly mounted on the outer wall of the rotating rod's shaft. A sliding block is slidably mounted on the inner wall of the throttle handle. A push rod is slidably mounted on the inner wall of the throttle handle, and the sliding block is fixedly connected to the push rod. A sliding rod is slidably mounted on the inner wall of the throttle handle, and a square groove is formed on the side of the sliding rod near the push rod. The shape of the push rod matches the square groove. A limiting block is slidably mounted on the inner wall of the throttle handle, and a connecting rod is rotatably mounted between the limiting block and the sliding rod. A fixing block is fixedly mounted on the outer wall of the regulating tank, and a slot is formed on the side of the fixing block near the limiting block. The limiting block contacts the inner wall of the slot. A connecting device for strengthening the connection between the conveying pipe and the conveying head is installed on the inner wall of the regulating tank; A cleaning device for cleaning the detection head is installed on the inner wall of the regulating tank.

[0007] The control device includes a push rod, a sliding rod, a connecting pipe, and a second connecting rod. The push rod is fixedly installed on the outer wall of the throttle, the connecting pipe is slidably installed on the inner wall of the regulating tank, one end of the second connecting rod is rotatably installed on the outer wall of the connecting pipe, and the sliding rod is rotatably connected to the other end of the connecting pipe.

[0008] A torsion spring is provided between the rotating rod and the handle to drive the rotating rod to rotate. The side of the push rod near the slide rod is set with an inclined surface to facilitate the movement of the slide rod. An elastic element is provided between the slide rod and the handle to drive the slide rod to reset. An elastic element is provided between the connecting pipe and the regulating tank to drive the connecting pipe to reset.

[0009] The connecting device includes a first sealing plate, a connector, a second sealing plate, and a round block. The first sealing plate is slidably installed on the side of the connecting pipe near the conveying pipe. The connector is fixedly installed on the side of the conveying pipe near the first sealing plate. The second sealing plate is slidably installed on the side of the connector near the first sealing plate. The round block is fixedly installed on the side of the second sealing plate near the first sealing plate. A round groove is formed on the side of the first sealing plate near the round block, and the shape of the round block matches the round groove.

[0010] The connecting device also includes a fixing key, a second push rod, a positioning block, and a sliding key. The fixing key is fixedly installed on the outer wall of the connecting pipe, the second push rod is fixedly installed on the outer wall of the connecting pipe, the positioning block is fixedly installed on the outer wall of the second sealing plate, and the sliding key is slidably installed on the side of the connector near the first sealing plate. The second sealing plate has a limit groove on the side near the sliding key, and the sliding key is in contact with the inside of the limit groove.

[0011] The fixed key has an inclined surface on the side near the sliding key to facilitate the movement of the sliding key. An elastic element three is provided between the sliding key and the connector to reset the sliding key. A tightening element one is provided between the sealing plate two and the connector to move the sealing plate two away from the conveying pipe. The positioning block has an inclined surface on the side near the push rod two to facilitate the push rod two to move the positioning block. An elastic tightening element two is provided between the sealing plate one and the connecting pipe to reset the sealing plate one.

[0012] The cleaning device includes a push rod three, a sliding block, a rotating connecting rod, and a vertical rod. The push rod three is fixedly installed on the outer wall of the connecting pipe, the sliding block is slidably installed on the inner wall of the regulating tank, the vertical rod is fixedly installed on the outer wall of the detection head, one end of the rotating connecting rod is rotatably connected to the sliding block, and the other end of the rotating connecting rod is rotatably connected to the vertical rod.

[0013] The cleaning device also includes a fixed frame, a rotating head, and a cleaning bucket. The fixed frame is fixedly installed on the inner wall of the regulating tank, the rotating head is rotatably installed on the inner wall of the fixed frame, and the cleaning bucket is rotatably embedded in the inner wall of the rotating head.

[0014] A tightening component three is provided between one end of the sliding block and the regulating tank. The tightening component three is provided to drive the sliding block to reset. A torsion spring two is provided between the rotating head and the fixed frame. The torsion spring two is provided to drive the rotating head to reset. The side of the rotating head near the detection head is set as an inclined surface. The rotating head is set as an inclined surface to facilitate the detection head to push the rotating head to rotate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this invention, if the throttle can be rotated directly, an unintentional scratch could lead to the accidental addition of medicine and damage to the solution. The engagement of the limiting block and the fixing block physically locks the throttle, preventing it from responding to any direct rotational force. This eliminates the risk of the regulator being accidentally added to the regulating tank due to accidental scratches in the working environment or unintentional touches by non-professionals. It ensures that the composition and pH value of the glutaraldehyde solution are not accidentally disturbed, maintaining its disinfection efficacy and stability. During the addition of medicine, the connecting tube moves actively and smoothly under the drive of the mechanism until both ends of its interface are tightly connected with the interfaces of the delivery tube and the delivery head. This active docking method is more reliable than the method of relying on fluid pressure to open the one-way valve. It can ensure that a complete fluid channel is formed at the moment of docking, avoiding splashing or loss of medicine at the interface.

[0016] 2. In this invention, the movement of the second sealing plate releases the restriction on the delivery head, preventing liquid in the regulating tank from flowing back into the delivery head. The seal ensures that no other liquid is present in the delivery head, guaranteeing that when the connecting pipe finally connects to the delivery head, the first drop of regulator flowing out of the addition tank is a pure, accurately concentrated stock solution, rather than an unknown concentration mixture with residual liquid. Simultaneously, it ensures that the delivery head is only exposed to the main tank solution for a brief moment during dosing, minimizing the risk of backflow and contamination. Through the engagement of the push rod second with the inclined surface of the positioning block, the second sealing plate and the first sealing plate are actively and forcibly pushed towards their initial positions, ensuring that the second sealing plate always returns to the exact same preset endpoint position. This establishes a precise starting point for the next reliable seal, preventing incomplete sealing due to positional movement.

[0017] 3. In this invention, at the moment of drug addition and adjustment, the injection of high-concentration regulator and the start of the stirring head will cause drastic changes in the flow field around the detection head, generating interference such as bubbles and local concentration gradients. At this time, actively lifting the detection head out of the liquid surface and temporarily removing it from the most intense mixing area can prevent the sensor from collecting these transient and non-representative false signals. The cleaning bucket, driven by the rotating head, wipes the detection head with a certain force and angle, which can effectively remove impurities that are not adhering to the detection head. This can significantly extend the stable working cycle of the detection head, reduce the calibration frequency, and ensure the accuracy of long-term monitoring. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the position and structure of the conveying pipe and conveying head of the present invention; Figure 3 This is a schematic diagram of the position and structure of the regulating tank and the detection head of the present invention; Figure 4 This is a schematic diagram of the rotating rod and push rod in one position according to the present invention; Figure 5 This is a schematic diagram of the position structure of the push rod and the slide rod of the present invention; Figure 6 This is a schematic diagram of the two-position structure of the connecting pipe and connecting rod of the present invention; Figure 7 This is a schematic diagram of the two-position structure of the connecting tube and push rod of the present invention; Figure 8 This is a schematic diagram showing the position and structure of the sealing plate 2 and the positioning block of the present invention; Figure 9 This is a schematic diagram of the position structure of the fixed frame and rotating head of the present invention.

[0019] The meanings of the labels in the diagram are as follows: 1. Adjusting tank; 2. Motor; 3. Adding tank; 4. Stirring head; 5. Rotary handle; 6. Detector; 7. Detection head; 8. Conveying pipe; 9. Conveying head; 10. Rotating rod; 11. Push block; 12. Sliding block; 13. Push rod one; 14. Sliding rod; 15. Limiting block; 16. Connecting rod one; 17. Fixing block; 18. Push rod; 19. Sliding rod; 191. Connecting pipe; 192. Connecting rod two; 21. Sealing plate one; 22. Fixing key; 23. Push rod two; 24. Connector; 25. Sealing plate two; 26. Positioning block; 27. Sliding key; 28. Round block; 31. Push rod three; 32. Sliding block; 33. Rotating connecting rod; 34. Vertical rod; 35. Fixing frame; 36. Rotating head; 37. Cleaning bucket. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-9One embodiment of the present invention is: an online pH detection and adjustment device for glutaraldehyde solutions, comprising an adjustment tank 1, a motor 2, an addition tank 3, a stirring head 4, a throttle 5, a detector 6, a detection head 7, a delivery pipe 8, and a delivery head 9. The motor 2 is fixedly installed on the top of the adjustment tank 1, and its output end rotates through the top of the adjustment tank 1. The addition tank 3 is fixedly installed on the top of the adjustment tank 1, and includes a first tank and a second tank. The first tank is used to hold sodium bicarbonate solution, and the second tank is used to hold citric acid solution. The stirring head 4 is fixedly connected to the fixed end of the motor 2. The throttle 5 rotates through the inner wall of the adjustment tank 1. The detector 6 is fixedly installed on the outer wall of the adjustment tank 1. The detection head 7 is slidably installed on the inner wall of the adjustment tank 1 and is electrically connected to the detector 6. The detection head 7 is used to detect the pH value of the liquid inside the adjustment tank 1. The addition tank 3 is connected to the interior of the adjustment tank 1 through the delivery pipe 8. The delivery head 9 is fixedly installed on the inner wall of the adjustment tank 1 and is in contact with the interior of the liquid inside the adjustment tank 1. The detection and adjustment device includes: A control device for controlling the addition of solution from addition tank 3 to adjustment tank 1 is installed on the inner wall of adjustment tank 1; A rotating rod 10 is rotatably mounted on the outer wall of a rotating handle 5. A push block 11 is fixedly mounted on the outer wall of the rotating shaft of the rotating rod 10. A sliding block 12 is slidably mounted on the inner wall of the rotating handle 5. A push rod 13 is slidably mounted on the inner wall of the rotating handle 5. The sliding block 12 is fixedly connected to the push rod 13. A sliding rod 14 is slidably mounted on the inner wall of the rotating handle 5. A square groove is opened on the side of the sliding rod 14 near the push rod 13. The shape of the push rod 13 matches the square groove. A limiting block 15 is slidably mounted on the inner wall of the rotating handle 5. A connecting rod 16 is rotatably mounted between the limiting block 15 and the sliding rod 14. A fixing block 17 is fixedly mounted on the outer wall of the regulating tank 1. A slot is opened on the side of the fixing block 17 near the limiting block 15. The limiting block 15 contacts the inner wall of the slot. A connecting device for strengthening the connection between the conveying pipe 8 and the conveying head 9 is installed on the inner wall of the regulating tank 1; A cleaning device for cleaning the detection head 7 is installed on the inner wall of the regulating tank 1.

[0022] The control device includes a push rod 18, a sliding rod 19, a connecting pipe 191, and a connecting rod 192. The push rod 18 is fixedly installed on the outer wall of the throttle 5, the connecting pipe 191 is slidably installed on the inner wall of the regulating tank 1, one end of the connecting rod 192 is rotatably installed on the outer wall of the connecting pipe 191, and the sliding rod 19 is rotatably connected to the other end of the connecting pipe 191.

[0023] A torsion spring is provided between the rotating rod 10 and the handle 5. The torsion spring is provided to drive the rotating rod 10 to rotate. The push rod 13 is inclined on the side near the slide rod 14. The inclined surface of the push rod 13 is provided to facilitate the movement of the slide rod 14. An elastic element is provided between the slide rod 14 and the handle 5. The elastic element is provided to drive the slide rod 14 to reset. An elastic element is provided between the connecting pipe 191 and the regulating tank 1. The elastic element is provided to drive the connecting pipe 191 to reset.

[0024] In this embodiment, during operation: When using glutaraldehyde solution to disinfect certain items, the pH value of the solution needs to be tested. Only when the pH value meets the standard can a good disinfection effect be achieved. During testing, the detection head 7 is immersed in the solution to measure the liquid. When the pH value is low, sodium bicarbonate solution from addition tank 3 (tank 1) needs to be added to adjustment tank 1 for adjustment. When the pH value is too high, citric acid solution from addition tank 3 (tank 2) needs to be added. When liquid is added to adjustment tank 1, the stirring head 4 agitates the solution inside. When liquid from addition tank 3 needs to be added to the liquid inside adjustment tank 1, the conveying... The first 9 will introduce liquid into the solution to reduce liquid fluctuations. When the pH value in the solution is low, the handle 5 needs to be held and the lever 10 needs to be turned. The rotation of the lever 10 will drive the push block 11 to move. The movement of the push block 11 will push the sliding block 12 to slide towards the slide rod 14. The movement of the sliding block 12 will drive the push rod 13 to move. The movement of the push rod 13 will push the slide rod 14 to move away from the limit block 15. The movement of the slide rod 14 will pull the connecting rod 16 to move. The movement of the connecting rod 16 will pull the limit block 15 to move away from the fixed block 17. The movement of the limit block 15 will disengage from the fixed block 17, and then the handle 5 can be rotated. The rotation of the handle 5 will lead to When the push rod 18 rotates, and the pH value is low, the push rod 18 rotates towards the direction of the first tank of addition tank 3. The movement of the push rod 18 will cause it to contact the sliding rod 19, which in turn will push the sliding rod 19 to move. The movement of the sliding rod 19 will then push the connecting rod 192 to move. The movement of the connecting rod 192 will push one end of the connecting pipe 191 towards the conveying pipe 8 and the other end towards the conveying head 9. The contact between the connecting pipe 191 and the conveying pipe 8 and the conveying head 9 will cause the liquid in the first tank of addition tank 3 to enter the solution. If the handle 5 can be rotated directly, an unintentional scraping could lead to accidental addition of medicine, damaging the solution. The engagement of the limiting block 15 and the fixing block 17... The throttle 5 is physically locked, preventing it from responding to any direct rotational force. This eliminates the risk of the regulator being accidentally added to the regulating tank 1 due to accidental scratches in the working environment or unintentional touches by non-professionals. It ensures that the composition and pH value of the glutaraldehyde solution are not accidentally disturbed, maintaining its disinfection efficacy and stability. During dosing, the connecting pipe 191 moves actively and smoothly under the drive of the mechanism until both ends of its interface are tightly connected to the interfaces of the delivery pipe 8 and the delivery head 9. This active docking method is more reliable than the method of relying on fluid pressure to open the one-way valve. It can ensure that a complete fluid channel is formed at the moment of docking, avoiding splashing or loss of the solution at the interface.

[0025] Please see Figures 1-9 Based on the above embodiments, in another embodiment of the present invention, the online pH detection and adjustment device for glutaraldehyde solution further includes a connecting device and a cleaning device.

[0026] The connecting device includes a sealing plate 21, a connector 24, a sealing plate 25, and a round block 28. The sealing plate 21 is slidably installed on the side of the connecting pipe 191 near the conveying pipe 8. The connector 24 is fixedly installed on the side of the conveying pipe 8 near the sealing plate 21. The sealing plate 25 is slidably installed on the side of the connector 24 near the sealing plate 21. The round block 28 is fixedly installed on the side of the sealing plate 25 near the sealing plate 21. A round groove is provided on the side of the sealing plate 21 near the round block 28, and the shape of the round block 28 matches the round groove.

[0027] The connecting device also includes a fixing key 22, a second push rod 23, a positioning block 26, and a sliding key 27. The fixing key 22 is fixedly installed on the outer wall of the connecting pipe 191, the second push rod 23 is fixedly installed on the outer wall of the connecting pipe 191, the positioning block 26 is fixedly installed on the outer wall of the second sealing plate 25, and the sliding key 27 is slidably installed on the side of the connector 24 near the first sealing plate 21. A limit groove is provided on the side of the second sealing plate 25 near the sliding key 27, and the sliding key 27 contacts the inside of the limit groove.

[0028] The fixed key 22 has a beveled side near the sliding key 27. The beveled side of the fixed key 22 is designed to facilitate the movement of the sliding key 27. An elastic element 3 is provided between the sliding key 27 and the connector 24. The elastic element 3 is designed to reset the sliding key 27. A tightening element 1 is provided between the sealing plate 25 and the connector 24. The tightening element 1 is designed to move the sealing plate 25 away from the conveying pipe 8. The positioning block 26 has a beveled side near the push rod 23. The beveled side of the positioning block 26 is designed to facilitate the push rod 23 to move the positioning block 26. An elastic tightening element 2 is provided between the sealing plate 21 and the connecting pipe 191. The tightening element 2 is designed to reset the sealing plate 21.

[0029] The cleaning device includes a push rod 31, a sliding block 32, a rotating connecting rod 33, and a vertical rod 34. The push rod 31 is fixedly installed on the outer wall of the connecting pipe 191, the sliding block 32 is slidably installed on the inner wall of the regulating tank 1, the vertical rod 34 is fixedly installed on the outer wall of the detection head 7, one end of the rotating connecting rod 33 is rotatably connected to the sliding block 32, and the other end of the rotating connecting rod 33 is rotatably connected to the vertical rod 34.

[0030] The cleaning device also includes a fixed frame 35, a rotating head 36, and a cleaning bucket 37. The fixed frame 35 is fixedly installed on the inner wall of the regulating tank 1, the rotating head 36 is rotatably installed on the inner wall of the fixed frame 35, and the cleaning bucket 37 is rotatably embedded in the inner wall of the rotating head 36.

[0031] A tightening element 3 is provided between one end of the sliding block 32 and the regulating tank 1. The tightening element 3 is provided to drive the sliding block 32 to reset. A torsion spring 2 is provided between the rotating head 36 and the fixed frame 35. The torsion spring 2 is provided to drive the rotating head 36 to reset. The side of the rotating head 36 near the detection head 7 is set as an inclined surface. The inclined surface of the rotating head 36 is provided to facilitate the detection head 7 to push the rotating head 36 to rotate.

[0032] In this embodiment, during operation: the movement of connecting pipe 191 pushes sealing plate 21 to move, and sealing plate 21 contacts sealing plate 25. The movement of sealing plate 21 drives the circular groove to move, and the circular groove contacts the circular block 28. When sealing plate 21 contacts sealing plate 25, sliding key 27 contacts the inclined surface of fixed key 22. Then, fixed key 22 pushes sliding key 27 to move away from sealing plate 25. The movement of sliding key 27 away from sealing plate 25 releases the restriction on sealing plate 25. Sealing plate 25 will move away from the conveying pipe 8. When sealing plate 25 moves away from the conveying pipe 8, it will drive sealing plate 21 to move. The movement of sealing plate 21 will release the seal on connecting pipe 191, ensuring that no solution from regulating tank 1 is stored in connecting pipe 191 before it connects with conveying pipe 8 and conveying head 9. The movement of sealing plate 25 will release the limit on conveying head 9, preventing liquid from regulating tank 1 from flowing back into conveying head 9. By sealing, no other liquid is allowed in conveying head 9, ensuring that when connecting pipe 191 finally connects with conveying pipe 8... When the delivery head 9 is connected, the first drop of conditioner flowing out of the addition tank 3 is a pure, accurately concentrated stock solution, not an unknown concentration mixture with residual liquid. This ensures that the delivery head 9 is only exposed to the main tank solution for a brief moment during dosing, minimizing the risk of backflow and contamination. When the connecting pipe 191 moves to its original position, it drives the push rod 23 to move to its original position. The push rod 23 then contacts the inclined surface of the positioning block 26, pushing the positioning block 26 towards the delivery pipe 8. The movement of the sealing plate 25 will... When the moving limit groove moves, and the position of the limit groove coincides with the sliding key 27, the sliding key 27 will insert into the limit groove to limit the sealing plate 25. Then the sealing plate 25 will re-seal the conveying pipe 8 and the conveying head 9. Through the cooperation of the push rod 23 and the inclined surface of the positioning block 26, the sealing plate 25 and the sealing plate 21 are actively and forcibly pushed to move towards the initial position, ensuring that the sealing plate 25 can return to the exact same preset end position each time. This establishes a precise starting point for the next reliable sealing and prevents the sealing from being incomplete due to position movement.

[0033] When liquid needs to be added to the solution inside the adjusting tank 1 to adjust the pH value, the handle 5 needs to be turned. Turning the handle 5 will move the push rod 31, which in turn will move the sliding block 32. The sliding block 32 will then move the rotating connecting rod 33, which will in turn move the vertical rod 34 upwards. The upward movement of the vertical rod 34 will pull the detection head 7 upwards, preventing strong fluctuations in the detection head 7 during pH adjustment. The upward movement of the detection head 7 will bring it into contact with the inclined surface of the rotating head 36, causing it to push the rotating head 36 upwards. After the rotating head 36 disengages from the detection head 7, it will rotate back to its original position. This rotation of the rotating head 36 will cause the cleaning tank 37 to contact the detection head 7. When the detection head 7 comes into contact with the liquid, the cleaning tank 37 will clean the surface of the detection head 7 to prevent the detection head 7 from becoming less accurate due to prolonged immersion. At the moment of chemical adjustment, the injection of high-concentration regulator and the start of the stirring head 4 will cause drastic changes in the flow field around the detection head 7, generating interference such as bubbles and local concentration gradients. At this time, the detection head 7 is actively lifted out of the liquid surface to temporarily remove it from the most violent mixing area, which can prevent the sensor from collecting these transient and non-representative false signals. Driven by the rotating head 36, the cleaning tank 37 wipes the detection head 7 with a certain force and angle, which can effectively remove impurities that are not attached to the detection head 7. This can significantly extend the stable working cycle of the detection head 7, reduce the calibration frequency, and ensure the accuracy of long-term monitoring.

[0034] It should be noted that, in this document, relational 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 such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the 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 these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An online pH detection and adjustment device for glutaraldehyde solutions, comprising an adjustment tank (1), a motor (2), an addition tank (3), a stirring head (4), a throttle (5), a detector (6), a detection head (7), a delivery pipe (8), and a delivery head (9), wherein the motor (2) is fixedly installed on the top of the adjustment tank (1), and the output end of the motor (2) rotates through the top of the adjustment tank (1); the addition tank (3) is fixedly installed on the top of the adjustment tank (1), and the addition tank (3) comprises a first tank and a second tank, the first tank being used to load sodium bicarbonate solution, and the second tank being used to load citric acid solution; the stirring head (4) and the motor (2) are connected in series. The fixed end is fixedly connected, the handle (5) rotates through the inner wall of the regulating tank (1), the detector (6) is fixedly installed on the outer wall of the regulating tank (1), the detection head (7) is slidably installed on the inner wall of the regulating tank (1), the detection head (7) is electrically connected to the detector (6), the detection head (7) is used to detect the pH value of the liquid inside the regulating tank (1), the addition tank (3) is connected to the inside of the regulating tank (1) through the delivery pipe (8), the delivery head (9) is fixedly installed on the inner wall of the regulating tank (1), and the delivery head (9) is in contact with the inside of the liquid inside the regulating tank (1). The characteristic of this design is that... The detection and adjustment equipment includes: A control device for controlling the addition of solution from the addition tank (3) to the regulating tank (1) is installed on the inner wall of the regulating tank (1); The control device includes a rotating rod (10), which is rotatably mounted on the outer wall of the handle (5). A push block (11) is fixedly mounted on the outer wall of the rotating rod (10). A sliding block (12) is slidably mounted on the inner wall of the handle (5). A push rod (13) is slidably mounted on the inner wall of the handle (5). The sliding block (12) is fixedly connected to the push rod (13). A sliding rod (14) is slidably mounted on the inner wall of the handle (5). 14) A square groove is provided on the side near the push rod (13), the shape of the push rod (13) matches the square groove, a limit block (15) is slidably installed on the inner wall of the handle (5), a connecting rod (16) is rotatably installed between the limit block (15) and the slide rod (14), a fixing block (17) is fixedly installed on the outer wall of the regulating tank (1), a slot is provided on the side of the fixing block (17) near the limit block (15), and the limit block (15) contacts the inner wall of the slot; A connecting device for strengthening the connection between the conveying pipe (8) and the conveying head (9) is installed on the inner wall of the regulating tank (1); A cleaning device for cleaning the detection head (7) is installed on the inner wall of the regulating tank (1).

2. The online pH detection and adjustment device for glutaraldehyde solutions according to claim 1, characterized in that: The control device also includes a push rod (18), a sliding rod (19), a connecting pipe (191), and a second connecting rod (192). The push rod (18) is fixedly installed on the outer wall of the throttle (5). The connecting pipe (191) is slidably installed on the inner wall of the regulating tank (1). One end of the second connecting rod (192) is rotatably installed on the outer wall of the connecting pipe (191). The sliding rod (19) is rotatably connected to the other end of the connecting pipe (191).

3. The online pH detection and adjustment device for glutaraldehyde solutions according to claim 2, characterized in that: A torsion spring is provided between the rotating rod (10) and the handle (5), the push rod (13) is inclined on the side near the slide rod (14), an elastic element is provided between the slide rod (14) and the handle (5), and an elastic element is provided between the connecting pipe (191) and the regulating tank (1).

4. The online pH detection and adjustment device for glutaraldehyde solutions according to claim 1, characterized in that: The connecting device includes a sealing plate one (21), a connector (24), a sealing plate two (25), and a round block (28). The sealing plate one (21) is slidably installed on the side of the connecting pipe (191) near the conveying pipe (8). The connector (24) is fixedly installed on the side of the conveying pipe (8) near the sealing plate one (21). The sealing plate two (25) is slidably installed on the side of the connector (24) near the sealing plate one (21). The round block (28) is fixedly installed on the side of the sealing plate two (25) near the sealing plate one (21). A round groove is provided on the side of the sealing plate one (21) near the round block (28). The shape of the round block (28) matches the round groove.

5. The online pH detection and adjustment device for glutaraldehyde solutions according to claim 4, characterized in that: The connecting device also includes a fixing key (22), a second push rod (23), a positioning block (26), and a sliding key (27). The fixing key (22) is fixedly installed on the outer wall of the connecting pipe (191), the second push rod (23) is fixedly installed on the outer wall of the connecting pipe (191), the positioning block (26) is fixedly installed on the outer wall of the second sealing plate (25), and the sliding key (27) is slidably installed on the side of the connector (24) near the first sealing plate (21). The second sealing plate (25) has a limit groove on the side near the sliding key (27), and the sliding key (27) is in contact with the inside of the limit groove.

6. The online pH detection and adjustment device for glutaraldehyde solutions according to claim 5, characterized in that: The fixed key (22) is inclined on the side near the sliding key (27). An elastic element three is provided between the sliding key (27) and the connector (24). A tightening element one is provided between the sealing plate two (25) and the connector (24). The positioning block (26) is inclined on the side near the push rod two (23). An elastic element tightening element two is provided between the sealing plate one (21) and the connecting pipe (191).

7. The online pH detection and adjustment device for glutaraldehyde solutions according to claim 1, characterized in that: The cleaning device includes a push rod (31), a sliding block (32), a rotating connecting rod (33), and a vertical rod (34). The push rod (31) is fixedly installed on the outer wall of the connecting pipe (191). The sliding block (32) is slidably installed on the inner wall of the regulating tank (1). The vertical rod (34) is fixedly installed on the outer wall of the detection head (7). One end of the rotating connecting rod (33) is rotatably connected to the sliding block (32), and the other end of the rotating connecting rod (33) is rotatably connected to the vertical rod (34).

8. The online pH detection and adjustment device for glutaraldehyde solutions according to claim 7, characterized in that: The cleaning device also includes a fixed frame (35), a rotating head (36), and a cleaning bucket (37). The fixed frame (35) is fixedly installed on the inner wall of the regulating tank (1), the rotating head (36) is rotatably installed on the inner wall of the fixed frame (35), and the cleaning bucket (37) is rotatably embedded in the inner wall of the rotating head (36).

9. The online pH detection and adjustment device for glutaraldehyde solutions according to claim 8, characterized in that: A tightening member is provided between one end of the sliding block (32) and the regulating tank (1), and a torsion spring is provided between the rotating head (36) and the fixed frame (35). The side of the rotating head (36) near the detection head (7) is set as an inclined surface.

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