Intelligent pH control device for sodium salt preparation tank
By designing a pre-mixing chamber and stirring system in the sodium salt preparation tank, an acid/base solution of controllable concentration is generated and stirred, solving the problem of violent reactions caused by directly adding concentrated acid/base. This achieves stable control of the solution pH value and improves the uniformity and safety of the reaction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANTAI GUOBANG INTELLIGENT EQUIPMENT TECHNOLOGY CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-14
AI Technical Summary
In the existing sodium salt preparation process, directly injecting concentrated acid or concentrated alkali into the preparation tank can easily trigger violent local reactions, resulting in uneven solution reaction or side reactions.
Design a smart pH control device for sodium salt preparation tank. The device generates a controllable concentration conditioning solution by mixing acid/alkali solutions in a pre-mixing chamber, and uses a motor-driven stirring rod for stirring. Combined with an acid/alkali detector and controller, the device dynamically adjusts the amount of acid/alkali added to ensure that the pH value remains stable within the target range.
This avoids uneven reactions or side reactions caused by directly adding concentrated solutions, achieves uniform pH control of sodium salt solutions, and improves the uniformity and safety of the reaction.
Smart Images

Figure CN224485805U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of salt chemical industry, and in particular to an intelligent pH control device for sodium salt preparation tank. Background Technology
[0002] Sodium salts are salts formed by the combination of sodium ions and acid radicals. Sodium salt preparation involves processes such as dissolution, mixing, and reaction to prepare specific sodium salt solutions, which are then widely used in chemical, water treatment, pharmaceutical, and food processing fields.
[0003] pH is a key parameter in the preparation of sodium salts. For example, when preparing sodium chlorate by electrolysis, a high pH environment will promote the formation of hypochlorite, while a low pH will easily generate chlorine gas, which will affect the preparation effect of sodium chlorate. The existing method of controlling the pH of sodium salts is usually to directly inject concentrated acid or concentrated alkali into the preparation tank. This method is prone to triggering violent local reactions, resulting in uneven solution reaction or side reactions.
[0004] Therefore, this invention requires the design of an intelligent pH control device for sodium salt preparation tanks. Utility Model Content
[0005] To overcome the drawbacks of directly injecting concentrated acid or alkali into the preparation tank, which can easily trigger violent local reactions, leading to uneven solution reaction or side reactions, the technical problem to be solved is to provide an intelligent pH control device for sodium salt preparation tanks.
[0006] The technical solution is as follows: A smart pH control device for a sodium salt preparation tank includes a stand, a controller, an acid-base detector, a detection head, a tank, an inner liner, a tank cover, fixing bolts, a motor A, a stirring rod, a mixing bottle, a pre-mixing chamber, a water pump, a one-way valve, and a discharge pipe. The tank is fixedly mounted on the stand. The controller is fixedly mounted on the front right side of the stand. The acid-base detector is fixedly mounted on the front middle side of the stand. The detection head is fixedly connected to the rear end of the acid-base detector and is fixedly inserted through the bottom of the tank to contact the solution. The inner liner is fixedly installed on the inner wall of the tank. The tank cover is installed on the upper end of the tank by fixing bolts. The motor A is fixedly mounted on the bottom of the stand. The output shaft of motor A is rotatably installed inside the tank. A stirring rod is fixedly installed on the output shaft of motor A inside the tank. Two mixing bottles are fixedly installed in the middle of the right side of the tank. Each mixing bottle has a filling port at the top. A pre-mixing compartment is fixedly installed in the middle of the right side of the tank. The pre-mixing compartment is located below the two mixing bottles. A discharge pipe is fixedly connected between the bottom of the mixing bottles and the pre-mixing compartment. The discharge pipe is connected to the mixing bottles and the interior of the pre-mixing compartment. A water pump is fixedly installed on each discharge pipe. The bottom of the pre-mixing compartment is connected to the interior of the tank through a pipe. A one-way valve is fixedly installed on the pipe outside the tank. The controller is electrically connected to the acid-base detector, motor A and water pump.
[0007] As a preferred option, both the inner liner and the stirring rod are made of acid and alkali resistant materials.
[0008] Preferably, the tank also includes a volumetric meter and a float. The volumetric meter is fixedly installed on the front side of the tank, and a float is installed inside the tank that floats with the liquid surface. The float and the volumetric meter slide together.
[0009] Preferably, the volumetric meter is made of a transparent, corrosion-resistant material and has graduation lines on its surface.
[0010] Preferably, the device also includes a mixing plate and a motor B. The motor B is fixedly installed at the upper end of the pre-mixing compartment. The output shaft of the motor B is rotatably inserted inside the pre-mixing compartment. The mixing plate is fixedly installed on the output shaft of the motor B inside the pre-mixing compartment. The controller is electrically connected to the motor B.
[0011] As a preferred option, the mixing plate, the inner wall of the mixing bottle, and the inner wall of the feeding pipe are all made of acid and alkali resistant materials.
[0012] The beneficial effects of this utility model are as follows: This utility model generates a controllable concentration conditioning liquid by mixing acid / alkali solutions in a pre-mixing chamber, and then the liquid flows into the tank. At the same time, motor A drives the stirring rod to continuously stir the sodium salt solution in the tank, which accelerates the diffusion and mixing of the pre-mixed liquid and avoids the uneven reaction or side reactions caused by directly adding concentrated solutions. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0014] Figure 2 This is a three-dimensional structural diagram of the components of this utility model, including the legs, tank, and controller.
[0015] Figure 3 This is a partial cross-sectional view of the components of this utility model, including the motor A, stirring rod, and float.
[0016] Figure 4 This is a three-dimensional structural diagram of the mixing bottle, can, and dispensing port of this utility model.
[0017] Figure 5 This is a partial cross-sectional view of the mixing plate, one-way valve, and motor B of this utility model.
[0018] Reference numerals: 1_Standing bracket, 2_Controller, 3_Acid-base detector, 301_Detection head, 4_Volume meter, 5_Tank body, 501_Inner liner, 6_Tank lid, 7_Fixing bolt, 8_Float, 9_Motor A, 10_Stirring rod, 11_Mixing bottle, 12_Injection port, 13_Pre-mixing bin, 1301_Water pump, 14_Check valve, 15_Mixing plate, 16_Motor B, 17_Discharge pipe. Detailed Implementation
[0019] Example: A smart pH control device for a sodium salt preparation tank, such as... Figures 1-5 As shown, the system includes a stand 1, a controller 2, an acid-base detector 3, a detection head 301, a tank 5, an inner liner 501, a tank lid 6, fixing bolts 7, a motor A9, a stirring rod 10, a mixing bottle 11, a pre-mixing chamber 13, a water pump 1301, a one-way valve 14, and a discharge pipe 17. The tank 5 is fixedly mounted on the stand 1. The controller 2 is mounted on the front right side of the stand 1 via screws. The acid-base detector 3 is mounted on the front middle side of the stand 1 via screws. The detection head 301 is fixedly connected to the rear end of the acid-base detector 3. The detection head 301 is fixedly inserted into the bottom of the tank 5 and contacts the solution. The inner liner 501 is fixedly installed on the inner wall of the tank 5. The tank lid 6 is mounted on the upper end of the tank 5 via fixing bolts 7. The motor A9 is mounted on the bottom of the stand 1 via screws. The output shaft of the motor A9 rotates. A stirring rod 10 is fixedly installed on the output shaft of motor A9 inside tank 5. Two mixing bottles 11 are installed in the middle right side of tank 5 through a fixing ring. Each mixing bottle 11 has a filling port 12 at its upper end. A pre-mixing chamber 13 is fixedly installed in the middle right side of tank 5. The pre-mixing chamber 13 is located below the two mixing bottles 11. A discharge pipe 17 is fixedly connected between the bottom of the mixing bottle 11 and the pre-mixing chamber 13. The discharge pipe 17 is connected to the mixing bottle 11 and the interior of the pre-mixing chamber 13. A water pump 1301 is fixedly installed on the discharge pipe 17. The bottom of the pre-mixing chamber 13 is connected to the interior of tank 5 through a pipe. A one-way valve 14 is fixedly installed on the pipe outside tank 5. Controller 2 is electrically connected to acid-base detector 3, motor A9 and water pump 1301.
[0020] like Figures 1-3 As shown, it also includes a volumetric meter 4 and a float 8. The volumetric meter 4 is fixedly installed on the front side of the tank body 5, and the float 8 is installed inside the tank body 5 that floats with the liquid surface. The float 8 and the volumetric meter 4 are in sliding cooperation. The volumetric meter 4 is made of transparent and corrosion-resistant material and has scale lines on its surface.
[0021] like Figure 5 As shown, it also includes a mixing plate 15 and a motor B16. The motor B16 is fixedly installed on the upper end of the pre-mixing chamber 13. The output shaft of the motor B16 is rotatably inserted inside the pre-mixing chamber 13. The mixing plate 15 is fixedly installed on the output shaft of the motor B16 inside the pre-mixing chamber 13. The controller 2 is electrically connected to the motor B16. The mixing plate 15, the inner wall of the mixing bottle 11 and the inner wall of the feed pipe 17 are all made of acid and alkali resistant materials.
[0022] This device is used in the sodium salt preparation process. First, the sodium salt raw material is added to the inner liner 501 of tank 5. The float 8 inside floats with the liquid level in the volumetric meter 4. The water level is observed to reach the preset level through the transparent volumetric meter 4 and the float 8. Then, the tank cover 6 and tank 5 are closed by tightening bolts. The motor A9 is started by the controller 2. The output shaft of the motor A9 drives the stirring rod 10 inside the tank 5 to stir the solution. At the same time, the detection head 301 continuously monitors the pH value of the solution in tank 5 and transmits the data to the controller 2 through the acid-base monitor. Based on the difference between the preset target pH value and the real-time detection data, the required amount of acid / base solution to be added is calculated. The water pump 1301 of the mixing bottle 11 is started by the controller 2. The water pump 1301 delivers the acid solution stored in the two mixing bottles 11 through the discharge pipe 17. The alkaline solution is quantitatively delivered to the pre-mixing chamber 13. Then, the controller 2 starts the motor B16. The output shaft of the motor B16 drives the mixing plate 15 in the pre-mixing chamber 13 to pre-mix the acid / alkali solution, generating a controllable concentration conditioning solution to avoid violent reactions caused by directly adding concentrated acid / alkali. The pre-mixed conditioning solution flows into the tank 5 through the pipeline. The one-way valve 14 prevents the solution from flowing back and contaminating the pre-mixing chamber 13. At this time, the motor A9 drives the stirring rod 10 to continuously stir the sodium salt solution in the tank 5, accelerating the diffusion and mixing of the pre-mixed solution. Through the real-time feedback of the detection head 301, the controller 2 dynamically adjusts the flow rate of the water pump 1301 and the speed of the motors A9 and B16 until the pH value of the solution in the tank 5 is stable within the target range. The inner liner 501 and the stirring rod 10 are both made of acid and alkali resistant materials.
Claims
1. A sodium salt preparation tank pH intelligent control device, characterized in that, The utility model relates to a kind of acid-base solution preparation device, including foot stool (1), controller (2), acid-base detector (3), detection head (301), jar body (5), inner container (501), jar cover (6), fixed bolt (7), motor A (9), stirring rod (10), deployment bottle (11), pre-deployment bin (13), water pump (1301), one-way valve (14) and downcomer (17), jar body (5) is fixedly installed on foot stool (1), controller (2) is fixedly installed on the front side right part of foot stool (1), acid-base detector (3) is fixedly installed on the front side middle part of foot stool (1), detection head (301) is fixedly connected at the rear end of acid-base detector (3), detection head (301) is fixedly penetrated in the bottom of jar body (5) and contacts solution, inner container (501) is fixedly arranged on the inner wall of jar body (5), jar cover (6) is installed on the upper end of jar body (5) by fixed bolt (7), motor A (9) is fixedly installed on the bottom of foot stool (1), motor A (9) output shaft is rotatably penetrated in the inside of jar body (5), stirring rod (10) is fixedly installed on the output shaft of motor A (9) in the inside of jar body (5), two deployment bottles (11) are fixedly installed on the right middle part of jar body (5), material inlet (12) is formed in the upper end of deployment bottle (11), pre-deployment bin (13) is fixedly installed on the right middle part of jar body (5), pre-deployment bin (13) is below two deployment bottles (11), downcomer (17) is fixedly connected between the bottom of deployment bottle (11) and pre-deployment bin (13), and downcomer (17) is communicated with the inside of deployment bottle (11) and pre-deployment bin (13), water pump (1301) is fixedly arranged on downcomer (17), pre-deployment bin (13) bottom and the inside of jar body (5) are communicated by pipeline, one-way valve (14) is fixedly arranged on the pipeline outside jar body (5), controller (2) is electrically connected with acid-base detector (3), motor A (9) and water pump (1301).
2. The device for intelligent control of pH value of sodium salt preparation tank according to claim 1, characterized in that, Inner container (501) and stirring rod (10) are made of acid and alkali resistant material.
3. The device for intelligent control of pH value of sodium salt preparation tank according to claim 2, characterized in that, It also includes capacity meter (4) and float (8), capacity meter (4) is fixedly formed on the front side of jar body (5), float (8) is arranged in the inside of jar body (5) and floats with liquid level, and float (8) is slidably matched with capacity meter (4).
4. The pH value intelligent regulating device for sodium salt preparation tank according to claim 3, characterized in that, Capacity meter (4) is made of transparent anticorrosive material, and scale line is arranged on the surface.
5. The device for intelligent control of pH value of sodium salt preparation tank according to claim 4, characterized in that, It also includes mixing plate (15) and motor B (16), motor B (16) is fixedly installed on the upper end of pre-deployment bin (13), motor B (16) output shaft is rotatably penetrated in the inside of pre-deployment bin (13), and mixing plate (15) is fixedly installed on the output shaft of motor B (16) in the inside of pre-deployment bin (13), and controller (2) is electrically connected with motor B (16).
6. The device for intelligent control of pH value of sodium salt preparation tank according to claim 5, characterized in that, Mixing plate (15), the inner wall of deployment bottle (11) and the inner wall of downcomer (17) are made of acid and alkali resistant material.