Semi-automatic constant-flow water distribution device suitable for batch reactor

Abstract

The utility model relates to the technical field of water treatment, in particular to a semi-automatic constant-flow water distribution device suitable for a batch reactor, which comprises a main liquid storage tank, an auxiliary liquid storage tank and a dilution mixing barrel, the first pipeline is communicated with the diluting and mixing barrel; the auxiliary liquid storage tank is communicated with a second pipeline; the control unit is connected with the first driving piece and the second driving piece; the batch reactor further comprises a fourth pipeline communicated with the dilution mixing barrel, a control piece is arranged on the fourth pipeline, and the problem that an existing batch reactor is prone to being affected by oxygen, so that the concentration of mother liquor containing reducing components is rapidly changed is solved. Meanwhile, the problem that the experiment repeatability is poor and is not suitable for teaching popularization due to the fact that water distribution work of an existing laboratory batch reactor depends on manual operation is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water treatment technical field, concretely relates to a kind of semi-automatic constant current water distribution device suitable for batch reactor. BACKGROUND

[0002] With the continuous deepening of water environmental pollution control technology research, batch reactor is increasingly widely applied in environmental engineering experimental teaching and scientific research field, especially in the simulation of sewage biological treatment, nutrient migration and transformation, antibiotic and heavy metal ecological effect research and so on. The batch reactor is usually less water, generally between 2 to 10 liters, and the experimental period is longer, often spanning several days or even weeks, during which the synthetic sewage or micro-polluted wastewater with stable nutrient composition needs to be replaced regularly to ensure the continuity and accuracy of the experiment. However, the current laboratory water distribution work mostly relies on manual operation, and researchers need to manually prepare a variety of mother liquor in accurate proportion, then dilute, adjust pH value and other steps, and finally add to the batch reactor. This manual water distribution method not only has high work intensity and low efficiency, but also has a time interval between the prepared mother liquor and the batch reactor, and the mother liquor may undergo redox reaction during this period, such as the mother liquor containing ferrous salt and antibiotics, which is easily affected by oxygen and changes in concentration, thereby affecting the accuracy of the experimental results. In addition, due to the lack of unified dilution stirring and adding process, the operation difference between different researchers is large, which leads to poor experimental repeatability and difficulty in ensuring the reliability of scientific research data. Although some university laboratories are equipped with water distribution devices, these devices are often expensive, complex in structure and high in maintenance cost, which are not suitable for widespread promotion in teaching environment.

[0003] Therefore, the utility model provides a semi-automatic constant current water distribution device suitable for batch reactor to solve the above technical problems. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a semi-automatic constant current water distribution device suitable for batch reactor, one of the purposes is to solve the problem that the existing batch reactor is easily affected by oxygen and quickly causes the concentration change of mother liquor containing reducing components, and the second purpose is to solve the problem that the experimental repeatability of the existing laboratory batch reactor water distribution work is poor and not suitable for teaching promotion.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A kind of semi-automatic constant current water distribution device suitable for batch reactor, including main liquid storage tank, auxiliary liquid storage tank and dilution mixing barrel, first pipeline is communicated on the main liquid storage tank, first driving element is arranged on the first pipeline, and the first pipeline is communicated with the dilution mixing barrel;Second pipeline is communicated on the auxiliary liquid storage tank, second driving element is arranged on the second pipeline, and the second pipeline is communicated with the dilution mixing barrel;

[0007] Control unit, the control unit is connected with the first driving element and the second driving element;

[0008] Regulatory liquid storage tank, third pipeline is communicated on the regulatory liquid storage tank, third driving element is arranged on the third pipeline, and the third pipeline is connected with the dilution mixing barrel;

[0009] Still include fourth pipeline that is communicated with dilution mixing barrel, control element is arranged on the fourth pipeline;

[0010] Still include stirring module and oxygen extraction module, and the stirring module is connected with the oxygen extraction module.

[0011] Further, the first driving element and second driving element are peristaltic pump.

[0012] Further, the fourth pipeline is used to be connected with deionized water or tap water;

[0013] The control element on the fourth pipeline is solenoid valve, and the solenoid valve is used to control deionized water or tap water to inject into dilution mixing barrel.

[0014] Further, the dilution mixing barrel bottom is equipped with stirring module, and the stirring module is electric mechanical stirrer;

[0015] The electric mechanical stirrer includes motor and stirring roller, the stirring roller is rotationally arranged in the dilution mixing barrel, the motor is arranged on one side of the dilution mixing barrel, and the output shaft of the motor is connected with the stirring roller.

[0016] Further, the oxygen extraction module includes shell, first piston cylinder and second piston cylinder fixedly arranged on the shell, first piston chamber is arranged in the first piston cylinder, second piston chamber is arranged in the second piston cylinder, first sliding plug is sealingly and slidably connected in the first piston chamber, and second sliding plug is sealingly and slidably connected in the second piston cylinder;

[0017] A connecting shaft is rotatably connected in the housing, the connecting shaft extends out of the housing and is coaxially connected to the stirring roller, a first connecting block and a second connecting block are fixedly connected to the connecting shaft, a first connecting rod is hingedly connected to the first connecting block, the first connecting rod is hingedly connected to the first sliding plug, a second connecting rod is hingedly connected to the second connecting block, and the second connecting rod is hingedly connected to the second sliding plug;

[0018] The first piston chamber is connected to a first air inlet pipe and a first air outlet pipe, the first air inlet pipe is provided with a first one-way valve, the first air outlet pipe is provided with a second one-way valve, the second piston chamber is connected to a second air inlet pipe and a second air outlet pipe, the second air inlet pipe is provided with a third one-way valve, and the second air outlet pipe is provided with a fourth one-way valve;

[0019] The first air outlet pipe extends into the dilution mixing barrel, and the first air inlet pipe is connected to a nitrogen tank; the second air inlet pipe extends into the dilution mixing barrel and is used to extract the gas in the dilution mixing barrel, and the first air outlet pipe and the second air inlet pipe are arranged opposite to each other.

[0020] Furthermore, the regulating liquid storage tank is a sodium bicarbonate liquid storage tank, and the third driving member is a regulating pump, which is used to transport the solution in the sodium bicarbonate liquid storage tank to the dilution mixing barrel.

[0021] Furthermore, the control unit is a timing control unit, and the timing control unit is a programmable time relay or a microcontroller.

[0022] Furthermore, a water outlet interface is provided at the bottom of the dilution and mixing barrel, and the water outlet interface is connected to a water outlet pipe.

[0023] Furthermore, the auxiliary liquid storage tank is a light-proof and sealed structure, and is used to store perishable pharmaceutical mother liquid.

[0024] Furthermore, a sealing cover is provided on the top of the main liquid storage tank, and a liquid level scale is provided on the main liquid storage tank.

[0025] Beneficial effects of the utility model:

[0026] The utility model realizes automatic proportioning, dilution and pH adjustment of the mother liquid through the pipeline connection structure of the main liquid storage tank, the auxiliary liquid storage tank, the regulating liquid storage tank and the dilution mixing barrel, combined with the coordinated control of the control unit over each driving component, thereby solving the problems of low manual operation efficiency, poor solution stability and insufficient experimental repeatability. It has the advantages of high degree of automation, excellent operation consistency and the ability to maintain solution stability, and is suitable for promotion and application in teaching environments.

[0027] The oxygen extraction module uses a mechanical linkage design to convert the rotational power of the stirring roller into the synchronous reciprocating motion of two pistons, achieving continuous gas replacement without the need for external power. During the stirring process, the first piston cylinder draws nitrogen from an external nitrogen tank and injects it into the bottom of the dilution mixing barrel. Simultaneously, the second piston cylinder extracts and discharges oxygen-containing gas from the top of the barrel, creating a continuous low-oxygen environment. This design effectively solves the problems of deterioration and concentration changes in easily oxidizable mother liquors (such as ferrous salts and antibiotics) caused by exposure to oxygen, and avoids the drift of mother liquor concentration caused by oxidation during traditional water distribution. At the same time, its coordinated operation with the stirring action ensures that oxygen interference is isolated during the mixing stage, significantly improving the stability of the reagent and the reliability of experimental data. The mechanical transmission structure does not require additional energy, reducing system complexity and cost.

[0028] Other advantages, objectives and features of the present application will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present application. The objectives and other advantages of the present application can be achieved and obtained through the following specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the connection process of the semi-automatic constant flow water distribution device suitable for batch reactors of the utility model;

[0030] Figure 2 This is a schematic diagram of the overall structure of the oxygen extraction module in the semi-automatic constant flow water distribution device suitable for batch reactors of the utility model;

[0031] Figure 3 The utility model is suitable for the semi-automatic constant flow water distribution device of the batch reactor. Figure 2 Schematic cross-sectional view of .

[0032] Among them, the main liquid storage tank 1, the first pipeline 11, the first driving member 12, the auxiliary liquid storage tank 2, the second pipeline 21, the second driving member 22, the dilution mixing barrel 3, the control unit 4, the regulation liquid storage tank 5, the third pipeline 51, the third driving member 52, the fourth pipeline 6, the control member 7, the electric mechanical stirrer 8, the motor 81, the stirring roller 82, the water outlet interface 91, the water outlet pipeline 92, the oxygen extraction module 10, the shell 101, the first piston cylinder 102, the first piston chamber 1021, the first sliding plug 1022, the first air inlet pipe 1023, the first air outlet pipe 1024, the second piston cylinder 103, the second piston chamber 1031, the second sliding plug 1032, the second air inlet pipe 1033, the second air outlet pipe 1034, the connecting shaft 104, the first connecting block 105, the second connecting block 106, the first connecting rod 107, and the second connecting rod 108. DETAILED DESCRIPTION

[0033] The embodiments of the present application will be described herein below with reference to the drawings and preferred embodiments, and other advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure herein. The present application can also be implemented or applied in other different specific embodiments, and various modifications or changes can be made to the details herein based on different views and applications without departing from the spirit of the present application. It should be understood that the preferred embodiments are only for illustrating the present application, and are not intended to limit the protection scope of the present application.

[0034] It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present application in a schematic manner, and only the components related to the present application are shown in the diagrams, not the number, shape and size of the components when actually implemented. The shape, number and proportion of each component when actually implemented can be arbitrarily changed, and the component layout pattern can also be more complex.

[0035] In the prior art, batch reactors are widely used in the field of environmental engineering. For wastewater biological treatment reactors, the traditional manual water distribution method has problems such as complicated operation, deterioration of mother liquor, and poor experimental repeatability. Although the existing water distribution device in the laboratory can partially solve the problem, it has a complex structure and high cost, and is difficult to popularize in teaching scenarios. When conducting continuous microbial culture experiments for several days in the laboratory, researchers need to manually prepare synthetic wastewater containing ferrous salt and antibiotics every day. During the operation process, it is found that the concentration of the mother liquor changes after being exposed to air, resulting in fluctuations in experimental data.

[0036] To solve the above problems, researchers found that manual water distribution is inefficient and difficult to ensure the stability of the mother liquor, so they began to explore an automated water distribution scheme. To address the problem of mother liquor deterioration, different properties of the mother liquor are stored in separate tanks. To address the operational differences, a drive member is used to accurately control the flow rate. To achieve continuous water supply, a dilution mixing barrel 3 is designed to integrate multiple input channels. After several tests, the technical idea of achieving constant-flow water supply through shunt delivery and centralized deployment has been gradually formed.

[0037] The present embodiment proposes a semi-automatic constant-flow water distribution device suitable for batch reactors, as shown in Figure 1 The device includes a main liquid storage tank 1, an auxiliary liquid storage tank 2, and a dilution mixing barrel 3. The main liquid storage tank 1 is used to store stable component nutrient mother liquor, such as nitrogen source and phosphate. The auxiliary liquid storage tank 2 is a light-tight sealed structure and is used to store deteriorating medicament mother liquor, such as ferrous salt and antibiotics. The main liquid storage tank 1 is connected to a first pipeline 11, and the first pipeline 11 is provided with a first drive member 12. The first pipeline 11 is connected to the dilution mixing barrel 3. The auxiliary liquid storage tank 2 is connected to a second pipeline 21, and the second pipeline 21 is provided with a second drive member 22. The second pipeline 21 is connected to the dilution mixing barrel 3.

[0038] The control unit 4 is connected with the first driving member 12 and the second driving member 22, and regulates the liquid storage tank 5, and the third pipeline 51 is communicated with the dilution mixing barrel 3, and the third driving member 52 is arranged on the third pipeline 51, and the fourth pipeline 6 communicated with the dilution mixing barrel 3 is further arranged, and the control member 7 is arranged on the fourth pipeline 6.

[0039] The main liquid storage tank 1 is used for storing the base mother liquor, which can be realized by a stainless steel pressure tank, and the first driving member 12 is used for realizing quantitative delivery. The auxiliary liquid storage tank 2 is used for storing the perishable medicament, which can be realized by a brown glass tank, and the dilution mixing barrel 3 is used for mixing the solution, which can be realized by a polypropylene tank, and the multiple pipelines are communicated with the dilution mixing barrel 3 to realize liquid mixing. Specifically, the main liquid storage tank 1 and the auxiliary liquid storage tank 2 store different mother liquors respectively, and deliver the mother liquors to the dilution mixing barrel 3 through the first pipeline 11 and the second pipeline 21 respectively. Compared with the prior art, the conventional manual water preparation needs to measure different mother liquors multiple times, and the present scheme realizes the proportioning through multiple pipelines for independent delivery, reduces manual intervention, ensures the stability of the solution concentration, realizes the instant mixing and delivery of the mother liquor, avoids the risk of mother liquor storage deterioration, guarantees the proportioning of different properties medicaments through multiple independent control, and improves the experimental repeatability.

[0040] As a preferred embodiment, the first driving member 12 and the second driving member 22 are peristaltic pumps. The peristaltic pump is a mechanical component known to those skilled in the art, which forms a volumetric pump for directional delivery of fluid by alternately pressing a flexible hose with rollers. Specifically, the peristaltic pump can be realized by a peristaltic pump with a replaceable hose module and a stepper motor 81. Specifically, the peristaltic pump drives the roller set to periodically extrude the flexible hose, forming a continuous fluid delivery wave inside the hose. When it is necessary to deliver the mother liquor in the main liquid storage tank 1 or the auxiliary liquid storage tank 2 to the dilution mixing barrel 3, the control unit 4 sends a pulse signal to the peristaltic pump to control the rotation angle and speed of the roller in the peristaltic pump, thereby realizing quantitative delivery of different volume flow rates.

[0041] As a preferred embodiment, the fourth pipeline 6 is used for delivering deionized water or tap water, and the control member 7 on the fourth pipeline 6 is an electromagnetic valve, which is used for controlling the injection of deionized water or tap water into the dilution mixing barrel 3. The fourth pipeline 6 refers to a delivery channel connecting an external water source and the dilution mixing barrel 3, which can be realized by PVC or corrosion-resistant metal pipe, and is used for delivering deionized water or tap water as a dilution solvent into the dilution mixing barrel 3. The electromagnetic valve refers to a valve device for controlling the on-off of fluid through an electric signal, which can be realized by a normally closed two-position two-way electromagnetic valve, and can be automatically opened or closed according to the signal instruction of the control unit 4, thereby accurately controlling the injection amount of the dilution water.

[0042] Specifically, one end of the fourth pipeline 6 is connected with a deionized water storage tank or a municipal water pipeline through a flange or a quick connector, and the other end extends to the top of the dilution mixing barrel 3 or an opening in the side wall. An electromagnetic valve is installed on the pipeline section of the fourth pipeline 6 close to the dilution mixing barrel 3, and the coil thereof is connected with the control unit 4 through a cable. When it is necessary to add dilution water into the dilution mixing barrel 3, the control unit 4 sends an opening signal to the electromagnetic valve, so that the deionized water or tap water is injected into the mixing barrel at a constant flow rate and mixed with the mother liquor from the main storage tank 1 and the auxiliary storage tank 2. The amount of dilution water is adjusted by the opening time of the electromagnetic valve, so as to ensure that the concentration of the mixed solution meets the preset proportion.

[0043] Through the above technical solution, the application can accurately control the injection amount and mixing time of the dilution water, ensure the consistency of the preparation concentration of the synthetic sewage or the slightly polluted wastewater, and reduce the risk of oxidation or decomposition of the mother liquor caused by manual operation delay, thereby improving the repeatability and reliability of the experimental data of the batch reactor.

[0044] In an embodiment, the application further provides that the dilution mixing barrel 3 is provided with a stirring module, which is an electric mechanical stirrer 8. The electric mechanical stirrer 8 is arranged at the bottom of the dilution mixing barrel 3 and is used to prevent the mother liquor from precipitating or stratifying. The electric mechanical stirrer 8 comprises a motor 81 and a stirring roller 82. The stirring roller 82 is rotatably arranged in the dilution mixing barrel 3, and the motor 81 is arranged on one side of the dilution mixing barrel 3. The output shaft of the motor 81 is connected with the stirring roller 82. The motor 81 drives the stirring roller 82 to rotate to generate shear force and accelerate the liquid mixing process. In the application, the motor 81 refers to a power device that converts electrical energy into mechanical energy. Specifically, a direct current or alternating current speed reducer motor 81 can be used to achieve this purpose, and the rotary power is transmitted to the stirring roller 82 through the output shaft. The stirring roller 82 refers to a rotating component that directly contacts the liquid. Specifically, a propeller type structure made of stainless steel or polytetrafluoroethylene material can be used to achieve this purpose. The rotating movement promotes the liquid to form vortex flow and improves the mixing efficiency.

[0045] Compared with the prior art, the traditional manual stirring relies on the operation of an experimental personnel holding a glass rod, and there are problems of uneven stirring intensity and inaccurate time control. The present application drives the rigid stirring roller 82 to perform mechanical stirring through the motor 81, which not only can adapt to liquids with different physicochemical properties, but also can preset the stirring time and speed through the control unit 4, thereby eliminating the influence of manual operation differences on the mixing effect. The present application realizes rapid and uniform mixing of the mother liquor and water flow, effectively prevents local concentration from being too high or precipitates from accumulating, and ensures the uniformity of the nutrient solution composition in the batch reactor. The automatic control of the mixing process reduces the human intervention link, so that different experimental personnel can obtain a repeatedly consistent mixed solution when operating, thereby improving the reliability of the experimental data.

[0046] In another possible embodiment, the present application further proposes that a stirring module be provided at the bottom of the dilution mixing barrel 3. The stirring module is a magnetic stirrer, which is a mechanical component well known to those skilled in the art. Specifically, the magnetic stirrer is integrated into the bottom of the dilution mixing barrel 3, and its built-in magnetic stirrer is linked to an external magnetic field generator. When the control unit 4 starts the stirring program, the magnetic field generator generates a rotating magnetic field that drives the stirrer to rotate at high speed, so that the concentrated mother liquor input from the main liquid storage tank 1, the auxiliary agent added from the auxiliary liquid storage tank 2, and the dilution water injected from the fourth pipe 6 are quickly mixed and evenly mixed.

[0047] like Figure 2 and Figure 3 As shown, the oxygen extraction module 10 includes a shell 101, a first piston cylinder 102 and a second piston cylinder 103 fixedly arranged on the shell 101, a first piston chamber 1021 is provided in the first piston cylinder 102, a second piston chamber 1031 is provided in the second piston cylinder 103, a first sliding plug 1022 is sealed and slidably connected in the first piston chamber 1021, and a second sliding plug 1032 is sealed and slidably connected in the second piston cylinder 103.

[0048] The housing 101 is rotatably connected to a connecting shaft 104, which extends out of the housing 101 and is coaxially connected to the stirring roller 82. The connecting shaft 104 is fixedly connected to a first connecting block 105 and a second connecting block 106. The first connecting block 105 is hinged with a first connecting rod 107, which is hinged to a first sliding plug 1022. The second connecting block 106 is hinged with a second connecting rod 108, which is hinged to a second sliding plug 1032. The first piston chamber 1021 is connected to a first air inlet pipe 1023 and a first air outlet pipe 1024. The first air inlet pipe 1023 and the first air outlet pipe 1024 are connected. 23 is provided with a first one-way valve, the first air outlet pipe 1024 is provided with a second one-way valve, the second piston chamber 1031 is connected to the second air inlet pipe 1033 and the second air outlet pipe 1034, the second air inlet pipe 1033 is provided with a third one-way valve, and the second air outlet pipe 1034 is provided with a fourth one-way valve; the first air outlet pipe 1024 extends into the dilution mixing barrel 3, and the first air inlet pipe 1023 is connected to a nitrogen tank (not shown); the second air inlet pipe 1033 extends into the dilution mixing barrel 3, and is used to extract the gas in the dilution mixing barrel 3, and the first air outlet pipe 1024 and the second air inlet pipe 1033 are arranged opposite to each other.

[0049] In this embodiment, the oxygen extraction module 10 converts the rotational motion of the stirring roller 82 into the reciprocating motion of the piston through mechanical linkage, thereby realizing the replacement of the gas in the dilution mixing barrel 3. When the motor 81 drives the stirring roller 82 to rotate, the coaxially connected connecting shaft 104 rotates synchronously, driving the first connecting block 105 and the second connecting block 106 fixed thereon to perform circular motion. The two connecting blocks (the first connecting block 105 and the second connecting block 106) are arranged at an angular staggered position on the connecting shaft 104, and there is a difference in their motion phases; the first connecting block 105 pushes the first sliding plug 1022 to reciprocate in the first piston chamber 1021 through the first connecting rod 107, and the second connecting block 106 drives the second sliding plug 1032 to reciprocate independently in the second piston chamber 1031 through the second connecting rod 108.

[0050] The gas replacement process is divided into two simultaneous phases. During the nitrogen charging phase, when the first sliding plug 1022 in the first piston cylinder 102 is pulled inward, the first one-way valve opens and the second one-way valve closes, allowing nitrogen from the nitrogen tank to be drawn into the first piston chamber 1021 via the first inlet pipe 1023. Subsequently, the first sliding plug 1022 is pushed outward, closing the first one-way valve and opening the second one-way valve. The compressed nitrogen is then injected into the bottom of the dilution and mixing barrel 3 via the first outlet pipe 1024.

[0051] Oxygen extraction stage: When the second sliding plug 1032 in the second piston cylinder 103 is pulled inward, the third one-way valve opens and the fourth one-way valve closes, and the oxygen-containing gas at the top of the dilution mixing barrel 3 is drawn into the second piston chamber 1031 through the second air inlet pipe 1033; then the second sliding plug 1032 is pushed outward, the third one-way valve closes and the fourth one-way valve opens, and the oxygen-containing gas is discharged to the outside through the second air outlet pipe 1034, ensuring that the nitrogen filling and oxygen extraction actions are continuously alternated, and the low oxygen environment in the dilution mixing barrel 3 is continuously maintained during the stirring process to prevent the mother liquor containing ferrous salts and antibiotics from being easily affected by oxygen and causing concentration changes.

[0052] It should be noted that this embodiment is only intended to reduce the oxygen content in the dilution mixing barrel 3 to reduce the concentration change of the mother liquor caused by oxygen, and cannot be understood as completely removing oxygen.

[0053] The present application further proposes that the regulating liquid storage tank 5 is a sodium bicarbonate liquid storage tank, and the third driving member 52 is a regulating pump, which is used to transport the solution in the sodium bicarbonate liquid storage tank 1 to the dilution mixing barrel 3 for adding alkaline regulating liquid to the dilution mixing barrel 3.

[0054] The sodium bicarbonate storage tank 1 is preferably a container specially used for storing the alkaline adjusting solution, which can be made of stainless steel or corrosion-resistant plastic material. The sealing property of the sodium bicarbonate storage tank 1 can prevent the decomposition of sodium bicarbonate caused by the contact between the solution and air. The adjusting pump is a device for controlling the flow rate of the solution, which can be implemented by a peristaltic pump or a plunger pump. The injection amount of the sodium bicarbonate solution can be controlled by adjusting the rotation speed or stroke length, so as to ensure the accurate adjustment of the pH value in the dilution mixing barrel 3.

[0055] Specifically, after the dilution mixing barrel 3 completes the dilution of the mother liquor, the alkaline solution in the sodium bicarbonate storage tank 1 is quantitatively delivered to the mixed solution by the adjusting pump. The operating parameters of the adjusting pump can be automatically adjusted by the control unit 4 according to the preset pH target value. For example, when the pH sensor detects that the mixed solution is acidic, the control unit 4 starts the adjusting pump to set the flow rate of the injection of the sodium bicarbonate solution until the target pH range is reached. This technology is known in the art. The entire process does not require manual weighing or pouring of the alkaline reagent, thereby avoiding operation errors.

[0056] Compared with the prior art, the traditional manual water preparation needs to separately configure the alkaline solution and manually add it by using a measuring cylinder, which not only increases the operation steps, but also has the risk of weighing error and solution deterioration caused by air contact. The present application realizes the sealed storage and accurate quantitative addition of the alkaline solution by the cooperation of the special storage tank 1 and the adjusting pump, thereby eliminating the influence of human operation fluctuation on the pH adjustment.

[0057] The present application further provides a semi-automatic constant-flow water preparation device suitable for batch reactors. The control unit 4 is a timing control unit 4, which is a programmable time relay or a microcontroller. The timing control unit 4 is a module for controlling the start and stop of the driving member by presetting the time parameters. It can be implemented by a programmable time relay with a timing function or a microcontroller with integrated logic operation capability. The function of the timing control unit 4 is to ensure that the solutions in the main storage tank 1, the auxiliary storage tank 2 and the regulating storage tank 5 are injected into the dilution mixing barrel 3 according to the set time sequence, thereby avoiding the time error caused by manual operation. The programmable time relay is an electrical control element capable of adjusting the delay action time according to the external input signal. The delay time at which the contact is closed or opened can be set to control the start and stop of the peristaltic pump and the adjusting pump. The microcontroller is an integrated circuit device with program storage and execution functions, such as a control system based on a single-chip microcomputer. A plurality of timing tasks can be set by programming, and a pulse signal can be output to drive the pump body to act.

[0058] Specifically, the timing control unit 4 is connected to the first driver 12, the second driver 22, and the third driver 52, and the start time, operating duration, and stop time of each driver are pre-set according to experimental requirements. For example, during the initial operation of the batch reactor, the programmable time relay triggers the first driver 12 to start, allowing the mother liquor from the main liquid storage tank 1 to enter the dilution mixing barrel 3 through the first pipe 11. When the preset time is reached, the microcontroller sends a command to the second driver 22 to begin injecting the mother liquor from the auxiliary liquid storage tank 2. During the mixing and dilution phase, the third driver 52 is activated to add the alkaline conditioning solution, and the solenoid valve in the fourth pipe 6 is controlled to open, introducing deionized water for dilution. The timing parameters of each step can be dynamically adjusted according to the experimental cycle to ensure the continuity and periodicity of solution preparation.

[0059] Compared with the existing technology, traditional manual water distribution relies on manual timing by the operator, which can easily lead to inconsistent water distribution intervals due to human negligence, and it is difficult to achieve precise connection of multiple steps. This solution automatically executes the timing logic through the timing control unit 4, eliminating manual timing errors. At the same time, the use of programmable time relays or microcontrollers reduces the complexity of the equipment. Compared with fully automatic control systems, it is lower in cost and more suitable for teaching scenarios. This solution solves the problem of mother liquor concentration fluctuations caused by inaccurate time control during manual water distribution, realizes the automated timing management of the water distribution process of batch reactors, ensures the synchronization and stability of solution injection in different experimental stages, and thus improves the repeatability and accuracy of experimental data.

[0060] This application further proposes a water outlet port 91 at the bottom of the dilution mixing barrel 3, connected to a water outlet pipe 92. Water outlet port 91 refers to a liquid discharge port located at the bottom or side of the container, and can be implemented using a flange interface with a sealing ring, a standardized fluid connection interface, or a quick-release snap-on interface, establishing a liquid outflow channel. Water outlet pipe 92 refers to a delivery pipeline connected to water outlet port 91, and can be implemented using a corrosion-resistant PVC hose or a 304 stainless steel rigid pipe, for directing the mixed liquid to a designated location.

[0061] Specifically, after the dilution mixing barrel 3 completes the mixing of the solutions and the pH adjustment, the water outlet interface 91 at the bottom is configured to directly connect to an external conveying device.

[0062] The present application further proposes that a sealing cover is provided on the top of the main liquid storage tank 1 , and a liquid level scale is provided on the main liquid storage tank 1 .

[0063] The sealing cover refers to a closed structure covering the top of the main liquid storage tank 1, which can be implemented by a threaded screw type cover body or a buckle type cover body, and can avoid volatile components from escaping or pollutants from invading by isolating the contact between external air and the liquid in the main liquid storage tank 1. The liquid level scale refers to a capacity measurement mark marked on the outer wall of the main liquid storage tank 1, which can be implemented by a transparent observation window combined with printed scale lines or an embedded scale rod, and can display the liquid volume in the main liquid storage tank 1 in real time, so as to facilitate quantitative monitoring of the mother liquid remaining amount. An operator can directly read the current liquid storage amount by observing the relative position of the liquid surface and the scale, and can quickly determine whether the mother liquid needs to be supplemented without the aid of external measuring tools.

[0064] The above embodiments are only preferred embodiments for fully illustrating the present application, and the protection scope of the present application is not limited thereto. Any equivalent replacement or transformation of the present application made by a person skilled in the art on the basis of the present application is within the protection scope of the present application.

Claims

1. A semi-automatic constant flow water distribution device suitable for batch reactors, characterized in that: include: A main liquid storage tank (1), an auxiliary liquid storage tank (2) and a dilution mixing barrel (3), wherein the main liquid storage tank (1) is connected to a first pipe (11), a first driving member (12) is provided on the first pipe (11), and the first pipe (11) is connected to the dilution mixing barrel (3); the auxiliary liquid storage tank (2) is connected to a second pipe (21), a second driving member (22) is provided on the second pipe (21), and the second pipe (21) is connected to the dilution mixing barrel (3); a control unit (4), the control unit (4) being connected to the first drive member (12) and the second drive member (22); A regulating liquid storage tank (5), wherein the regulating liquid storage tank (5) is connected to a third pipe (51), a third driving member (52) is provided on the third pipe (51), and the third pipe (51) is connected to the dilution mixing barrel (3); It also includes a fourth pipe (6) connected to the dilution mixing barrel (3), and a control member (7) is provided on the fourth pipe (6); It also includes a stirring module and an oxygen extraction module (10), wherein the stirring module is connected to the oxygen extraction module (10).

2. The semi-automatic constant flow water distribution device suitable for a batch reactor according to claim 1, characterized in that: The first driving member (12) and the second driving member (22) are peristaltic pumps.

3. The semi-automatic constant flow water distribution device suitable for a batch reactor according to claim 2, characterized in that: The fourth pipe (6) is used to transport deionized water or tap water; The control component (7) on the fourth pipeline (6) is a solenoid valve, which is used to control the injection of deionized water or tap water into the dilution mixing barrel (3).

4. The semi-automatic constant flow water distribution device suitable for a batch reactor according to claim 3, characterized in that: The stirring module is arranged at the bottom of the dilution mixing barrel (3), and the stirring module is an electric mechanical stirrer (8); The electric mechanical stirrer (8) comprises a motor (81) and a stirring roller (82), wherein the stirring roller (82) is rotatably arranged in the dilution mixing barrel (3), the motor (81) is arranged on one side of the dilution mixing barrel (3), and the output shaft of the motor (81) is connected to the stirring roller (82).

5. The semi-automatic constant flow water distribution device suitable for a batch reactor according to claim 4, characterized in that: The oxygen extraction module (10) comprises a housing (101), a first piston cylinder (102) and a second piston cylinder (103) fixedly arranged on the housing (101); a first piston chamber (1021) is arranged in the first piston cylinder (102); a second piston chamber (1031) is arranged in the second piston cylinder (103); a first sliding plug (1022) is sealingly and slidably connected in the first piston chamber (1021); and a second sliding plug (1032) is sealingly and slidably connected in the second piston cylinder (103); A connecting shaft (104) is rotatably connected in the housing (101), the connecting shaft (104) extends out of the housing (101) and is coaxially connected to the stirring roller (82), a first connecting block (105) and a second connecting block (106) are fixedly connected to the connecting shaft (104), a first connecting rod (107) is hingedly connected to the first connecting block (105), the first connecting rod (107) is hingedly connected to the first sliding plug (1022), a second connecting rod (108) is hingedly connected to the second connecting block (106), and the second connecting rod (108) is hingedly connected to the second sliding plug (1032); The first piston chamber (1021) is connected to a first air inlet pipe (1023) and a first air outlet pipe (1024), the first air inlet pipe (1023) is provided with a first one-way valve, and the first air outlet pipe (1024) is provided with a second one-way valve; the second piston chamber (1031) is connected to a second air inlet pipe (1033) and a second air outlet pipe (1034), the second air inlet pipe (1033) is provided with a third one-way valve, and the second air outlet pipe (1034) is provided with a fourth one-way valve; The first air outlet pipe (1024) extends into the dilution mixing barrel (3), and the first air inlet pipe (1023) is connected to a nitrogen tank; the second air inlet pipe (1033) extends into the dilution mixing barrel (3) and is used to extract the gas in the dilution mixing barrel (3), and the first air outlet pipe (1024) and the second air inlet pipe (1033) are arranged opposite to each other.

6. The semi-automatic constant flow water distribution device suitable for a batch reactor according to claim 5, characterized in that: The regulating liquid storage tank (5) is a sodium bicarbonate liquid storage tank, and the third driving member (52) is a regulating pump, which is used to transport the solution in the sodium bicarbonate liquid storage tank to the dilution mixing barrel (3).

7. The semi-automatic constant flow water distribution device suitable for a batch reactor according to claim 6, characterized in that: The control unit (4) is a timing control unit (4), and the timing control unit (4) is a programmable time relay or a microcontroller.

8. The semi-automatic constant flow water distribution device suitable for a batch reactor according to claim 7, characterized in that: A water outlet interface (91) is provided at the bottom of the dilution and mixing barrel (3), and the water outlet interface (91) is connected to a water outlet pipe (92).

9. The semi-automatic constant flow water distribution device suitable for a batch reactor according to claim 8, characterized in that: The auxiliary liquid storage tank (2) is a light-proof sealed structure and is used for storing perishable pharmaceutical mother liquid.

10. The semi-automatic constant flow water distribution device for a batch reactor according to any one of claims 1 to 9, characterized in that: A sealing cover is provided on the top of the main liquid storage tank (1), and a liquid level scale is provided on the main liquid storage tank (1).

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