Water circulation mixing system for water quality initialization of experimental water tank

Abstract

The utility model belongs to the technical field of pipeline systems, and particularly relates to a water circulation mixing system for water quality initialization of an experimental water tank, which comprises a workbench, a mixing water tank arranged on the workbench, a stirring device arranged on the mixing water tank, and a water outlet pipeline system communicated with the bottom of the mixing water tank, the top of the mixing water tank is communicated with a water inlet pipeline system, the water outlet pipeline system and the water inlet pipeline system are communicated with a plurality of water distribution tanks, and water in all the water distribution tanks can be pumped into the mixing water tank through the water inlet pipeline system and is stirred and mixed through a stirring device. The mixed water is redistributed to each water distribution tank through the water outlet pipeline system, so that the water quality and the microbial flora of all the water distribution tanks are uniformly distributed, the initialization consistency of the experimental water quality is realized, the reliability and the repeatability of the experimental result are improved, and the experimental efficiency is improved. The experimental efficiency is improved, the consistency of experimental conditions is ensured, the ecological environment is protected, and water resources are saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of water circulation systems, and particularly relates to a water circulation mixing system for initializing the water quality of an experimental water tank. Background Art

[0002] In water environment research and ecological experiments, simulating the real river environment for experiments is a common research method. Researchers usually draw water from the river and place it in an experimental water tank for various tests, such as water quality analysis, biological monitoring, and research on the migration and transformation of pollutants. However, as the experiment progresses, the water quality in the water tank gradually changes, mainly manifested as changes in physical, chemical, and biological characteristics. These changes include, but are not limited to, fluctuations in dissolved oxygen concentration, changes in pH value, increases or decreases in nutrient salt content, and succession of the microbial flora structure.

[0003] These water quality changes directly affect the accuracy and repeatability of experimental results. Especially the changes in the microbial flora may lead to inconsistencies between the experimental environment and the natural river environment, thereby affecting the reliability of research conclusions. To ensure the scientific nature of the experiment and the reliability of data, researchers usually need to ensure that the initial conditions of the water quality in the water tank are as consistent as possible before the start of each round of experiments. This usually requires frequent water replacement by drawing water from the river, which not only increases the complexity and workload of experimental operations but also interferes with the river ecological environment to a certain extent. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the utility model provides a water circulation mixing system for initializing the water quality of an experimental water tank. By collecting the water in each sub-water tank into the mixing water tank for full mixing and then redistributing the mixed water to each sub-water tank, it ensures the uniform distribution of water quality and microbial flora in each sub-water tank, thereby achieving the consistency of experimental water quality initialization and solving the problems in the prior art that it is necessary to frequently draw water from the river for replacement, increasing the complexity and workload of experimental operations and also interfering with the river ecological environment to a certain extent.

[0005] To achieve the above object, the utility model is realized through the following technical solutions: A water circulation mixing system for initializing the water quality of an experimental water tank includes a workbench, on which a mixing water tank is arranged. A stirring device is arranged on the mixing water tank. The bottom of the mixing water tank is communicated with an outlet pipe system, and the top of the mixing water tank is communicated with an inlet pipe system. A number of sub-water tanks are communicated with the outlet pipe system and the inlet pipe system. The mixing water tank can draw the water from all sub-water tanks into the mixing water tank through the inlet pipe system. After being stirred and mixed by the stirring device, the mixed water is redistributed to each sub-water tank through the outlet pipe system to achieve uniform distribution of water quality and microbial flora in all sub-water tanks.

[0006] Preferably, the water outlet pipe system includes a first water outlet communicating with the bottom of the mixing water tank. The first water outlet is connected to a water outlet pipe, and a number of first water inlets communicating with the bottoms of all sub-water tanks are arranged on the water outlet pipe. Water valves are installed on all the first water inlets and the first water outlet.

[0007] Preferably, the water inlet pipe system includes a second water inlet communicating with the top of the mixing water tank. The second water inlet is connected to a water inlet pipe, and a number of second water outlets communicating with the tops of all sub-water tanks are arranged on the water inlet pipe.

[0008] Preferably, the stirring device includes a rotating motor arranged on the top of the mixing water tank. The output end of the rotating motor is fixedly connected to a rotating shaft, and spiral blades are arranged on the rotating shaft.

[0009] Preferably, a water pump is arranged inside the mixing water tank, and the water outlet pipe system and the water inlet pipe system are interconnected through the water pump.

[0010] Preferably, water quality detectors are arranged on all the sub-water tanks and the mixing water tank.

[0011] Preferably, liquid level gauges are arranged on all the sub-water tanks and the mixing water tank.

[0012] Preferably, a control device is arranged on the workbench.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: A water circulation mixing system for initializing the water quality of an experimental water tank proposed by the present utility model collects the water in each sub-water tank into the mixing water tank for full mixing, and then redistributes the mixed water to each sub-water tank to ensure uniform water quality and microbial flora distribution in each sub-water tank, thereby achieving the consistency of experimental water quality initialization, improving the reliability and repeatability of experimental results, improving experimental efficiency, ensuring the consistency of experimental conditions, protecting the ecological environment, and saving water resources.

[0014] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic perspective view of a water circulation mixing system for initializing the water quality of an experimental water tank Figure 1 。

[0016] Figure 2 Schematic perspective view of a water circulation mixing system for initializing the water quality of an experimental water tank Figure 2 。

[0017] Figure 3Schematic three-dimensional structure of a water circulation mixing system for initializing the water quality of an experimental water tank Figure 3 。

[0018] Figure 4 Cross-sectional view of the stirring device of a water circulation mixing system for initializing the water quality of an experimental water tank

[0019] In the figure: 1, workbench; 2, mixing water tank; 3, stirring device; 31, rotating motor; 32, rotating shaft; 33, spiral blade; 4, water outlet pipe system; 41, first water outlet; 42, water outlet pipe; 43, first water inlet; 44, water valve; 5, water inlet pipe system; 51, second water inlet; 52, water inlet pipe; 53, second water outlet; 6, sub-water tank; 7, water quality detector; 8, liquid level gauge; 9, control device Specific implementation manners

[0020] The following specifically and in detail describes the implementation manners of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model

[0021] Combined with Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown in the figure, a water circulation mixing system for initializing the water quality of an experimental water tank includes a workbench 1. A mixing water tank 2 is arranged on the workbench 1. A stirring device 3 is arranged on the mixing water tank 2. The bottom of the mixing water tank 2 is connected to an outlet pipe system 4, and the top of the mixing water tank 2 is connected to an inlet pipe system 5. A number of sub-water tanks 6 are connected to the outlet pipe system 4 and the inlet pipe system 5. The mixing water tank 2 can draw the water from all the sub-water tanks 6 into the mixing water tank 2 through the inlet pipe system 5. After being stirred and mixed by the stirring device 3, the mixed water is redistributed to each sub-water tank 6 through the outlet pipe system 4 to achieve uniform distribution of the water quality and microbial flora in all the sub-water tanks 6. Specifically, an efficient water circulation mixing system for initializing the water quality design of an experimental water tank is used for regulating the water quality balance and microbial community. The workbench 1 ensures the stability and safety of the experimental operation. It integrates a necessary electrical control box and a data acquisition terminal, facilitating real-time monitoring of water quality parameters (such as temperature, pH value, dissolved oxygen, etc.) and the system operation status, and realizing intelligent management. The volume of the mixing water tank 2 can be flexibly configured according to experimental requirements to ensure that it can accommodate and effectively mix the water bodies from each sub-water tank 6. The side wall of the tank body is equipped with a transparent observation window for intuitively monitoring the mixing process and water quality changes. The stirring device 3 is located at the central position inside the mixing water tank 2 and is driven by a motor to generate a strong and uniform water flow circulation through the stirring blades. It can effectively break the water stratification, promote the mass exchange between different water quality levels, and shear microbial aggregates to a certain extent, contributing to the uniform distribution of the microbial flora. The inlet pipe system 5 can adjust the water volume drawn from each sub-water tank 6 to ensure the water volume balance during the mixing process. The outlet pipe system 4 accurately conveys the uniformly mixed water body back to each sub-water tank 6 according to the preset distribution ratio or real-time water quality monitoring data to achieve comprehensive homogenization of the water quality. The sub-water tanks 6, as components of the experimental water tank, can be flexibly configured in terms of quantity, volume, and layout according to specific experimental requirements. Each sub-water tank 6 is equipped with an independent sampling port, a sewage discharge port, and necessary monitoring sensors for convenient individual operation and monitoring. During the circulation mixing process, the sub-water tanks 6 not only serve as water storage units but also participate in the dynamic balance process of the microbial community in the whole system through the changes in their internal microenvironments. The water circulation mixing system effectively solves the problems of uneven water quality and different distributions of microbial communities in the experimental water tank through an efficient stirring and mixing mechanism and a precise water flow distribution strategy. Its intelligent and modular design concept not only improves the experimental efficiency and accuracy but also provides strong technical support for water quality scientific research.

[0022] Combined with Figure 1 、 Figure 2 and Figure 3As shown, the effluent pipe system 4 includes a first water outlet 41 communicating with the bottom of the mixing tank 2. The first water outlet 41 is connected to an effluent pipe 42. Along the effluent pipe 42, there are provided several first water inlets 43 communicating with the bottoms of all the sub-tanks 6. Water valves 44 are installed on all the first water inlets 43 and the first water outlet 41. Specifically, the effluent pipe system 4 ensures that the mixed water body can be evenly and effectively redistributed into each sub-tank 6. The first water outlet 41 is arranged at the bottom of the mixing tank 2 to ensure that the mixed water body can be completely discharged, avoiding the residue of sediments or inadequately mixed water. The sealing performance at the interface of the first water outlet 41 is excellent, preventing water leakage. The effluent pipe 42 extending from the first water outlet 41 can withstand the pressure and impact of the water flow. The path of the effluent pipe 42 is minimized to reduce the water flow resistance, while considering the convenience of installation and maintenance. The diameter of the effluent pipe 42 is designed according to the capacity of the mixing tank 2 and the required flow rate to ensure smooth water flow. Along the length direction of the effluent pipe 42, several first water inlets 43 are provided at equal intervals or as required according to the actual situation. These first water inlets 43 are respectively connected to the bottoms of the sub-tanks 6. The design of the first water inlets 43 takes into account the capacity and distribution position of the sub-tanks 6 to ensure that the mixed water body can be evenly distributed into each sub-tank 6, avoiding the phenomenon of excessive or insufficient water volume in some areas. To better control the flow direction and flow rate of the water, water valves 44 are installed on all the first water inlets 43 and the first water outlet 41. These water valves 44 are controlled electrically or manually and can be opened, closed or adjusted according to the experimental requirements. The material of the water valves 44 is also required to be corrosion-resistant and have good sealing performance to ensure the stability and reliability during long-term use. By controlling the opening and closing and the opening degree of the water valves 44, the water volume flowing out of the mixing tank 2 and the water volume ratio distributed to each sub-tank 6 can be accurately controlled, ensuring the consistency and repeatability of the experimental conditions. During the experiment, if it is necessary to adjust the water volume or water quality of a certain or certain sub-tanks 6, the corresponding water valves 44 can be operated to achieve rapid and convenient adjustment. Combined with the operation of the stirring device 3, the effluent pipe system 4 evenly distributes the mixed water body into each sub-tank 6, promoting the homogenization of water quality and the balance of the microbial community in the whole system. The design of the effluent pipe system 4 takes into account the convenience of maintenance. The components are tightly connected and easy to disassemble, facilitating regular inspection, cleaning or replacement of damaged components.

[0023] Combined with Figure 1 、 Figure 2 and Figure 3As shown, the water inlet pipe system 5 includes a second water inlet 51 that communicates with the top of the mixing tank 2. The second water inlet 51 is connected to a water inlet pipe 52, and a number of second water outlets 53 that communicate with the tops of all the sub-tanks 6 are provided on the water inlet pipe 52. Specifically, the water inlet pipe system 5 is responsible for introducing the water bodies in the respective sub-tanks 6 into the mixing tank 2. The second water inlet 51 is located at the top of the mixing tank 2, reducing the impact and turbulence when the water enters, and promoting the smooth mixing of the water bodies. The diameter and shape of the second water inlet 51 are designed to adapt to different flow rate requirements, and it is equipped with a filter screen or other pretreatment devices to prevent impurities from entering the mixing tank 2. The water inlet pipe 52 extending from the second water inlet 51 ensures the stability and safety during long-term use. In terms of the pipeline layout, the water inlet pipe 52 may adopt a branched or annular structure to facilitate connecting multiple sub-tanks 6 simultaneously and adjusting the water flow direction as needed. On the water inlet pipe 52, a number of second water outlets 53 are provided according to the quantity and layout of the sub-tanks 6. These second water outlets 53 are respectively connected to the tops of the respective sub-tanks 6, and their function is to draw out the water bodies in the sub-tanks 6 and transport them to the mixing tank 2. The design of the second water outlets 53 needs to consider factors such as the capacity of the sub-tanks 6, the water level height, and the water flow resistance to ensure that the water bodies can be drawn out smoothly and efficiently. Through the connection between the second water outlets 53 and the tops of the sub-tanks 6, the water inlet pipe system 5 can effectively collect the water bodies in the respective sub-tanks 6, providing sufficient raw materials for the subsequent mixing operation. When the water bodies in all the sub-tanks 6 are drawn into the mixing tank 2 through the water inlet pipe system 5, they are already at a relatively high position, which helps to be quickly and evenly mixed under the action of the stirring device 3. This design reduces the energy consumption and time cost during the mixing process. The design of the water inlet pipe system 5 also takes into account the convenience of maintenance. For example, the filter screen or other pretreatment devices can be easily cleaned and replaced; the pipeline joints adopt a structure that is easy to disassemble for easy inspection and maintenance.

[0024] Combined with Figure 1 , Figure 2 and Figure 4As shown, the stirring device 3 includes a rotating motor 31 disposed at the top of the mixing water tank 2. The output end of the rotating motor 31 is fixedly connected to a rotating shaft 32, and a spiral blade 33 is provided on the rotating shaft 32. Specifically, the stirring device 3 can ensure that the water in the mixing water tank 2 is fully and evenly stirred and mixed. The rotating motor 31 serves as the power source of the stirring device 3 and is installed at the top of the mixing water tank 2. The rotating motor 31 adopts an energy-efficient design and can provide a stable and adjustable rotational speed to meet different mixing requirements. The motor housing is designed to be waterproof and dustproof to ensure safe operation in a humid environment. The rotating shaft 32 is a key component connecting the rotating motor 31 and the stirring element. The rotating shaft 32 is fixedly connected to the output end of the rotating motor 31 to ensure smooth and efficient power transmission. During the extension of the rotating shaft 32, a sealing device may also be provided to prevent water from seeping into the interior of the motor. The spiral blade 33 is installed on the rotating shaft 32 and rotates with the rotation of the rotating shaft 32. The design of the spiral blade 33 fully considers the principles of fluid mechanics. Its shape, quantity, arrangement pattern, and rotation direction have all been carefully calculated and optimized to ensure that a strong and uniform water flow circulation can be generated during rotation. This design can not only effectively break the water stratification and promote the mass exchange between different water quality levels, but also shear microbial aggregates to a certain extent, contributing to the uniform distribution of the microbial flora. When the rotating motor 31 is started, its output end drives the rotating shaft 32 to start rotating. As the rotating shaft 32 rotates, the spiral blade 33 also rotates and generates a powerful stirring force. This stirring force acts on the water in the mixing water tank 2, causing it to form a strong vortex and circulation. During this process, the solutes, microorganisms, and other suspended substances in the water are continuously stirred, dispersed, and mixed, ultimately achieving the homogenization of water quality and the balance of the microbial community. Through the rotation and stirring action of the spiral blade 33, the water stratification phenomenon can be quickly broken, and the rapid mixing and homogenization of water quality can be achieved. The structure of the stirring device 3 is relatively simple and easy to disassemble, clean, and maintain. By adjusting the rotational speed of the rotating motor 31 and the design parameters of the spiral blade 33, it can adapt to experimental scenarios with different water qualities and mixing requirements.

[0025] Combined with Figure 1 、 Figure 2 and Figure 3As shown, a water pump is installed inside the mixing water tank 2, and the water outlet pipe system 4 and the water inlet pipe system 5 are interconnected through the water pump. Specifically, an efficient water pump is ingeniously installed inside the mixing water tank 2, greatly enhancing the flexibility and efficiency of the water circulation mixing system. As the core driving force for the water flow in the entire system, the water pump not only realizes the seamless connection and mutual circulation between the water outlet pipe system 4 and the water inlet pipe system 5, but also ensures the smooth circulation of water between the mixing water tank 2 and each sub-water tank 6. The installed water pump adopts advanced power technology and can generate sufficient pressure and flow rate to overcome the pipe resistance and ensure the rapid and efficient flow of water in the system. This strong power support enables the water in the mixing water tank 2 to be quickly pumped and distributed to each sub-water tank 6, and at the same time, the water in the sub-water tank 6 can be quickly recycled to the mixing water tank 2 for re-mixing. During the operation of the system, through its powerful power function, the water pump first extracts the uniformly mixed water in the mixing water tank 2 through the first water outlet 41 in the water outlet pipe system 4 and transports it along the water outlet pipe 42 to the second water outlet 53 at the top of each sub-water tank 6. At the same time, the water pump also pumps the water in each sub-water tank 6 from the second water inlet 53 back to the mixing water tank 2 for re-mixing through the water inlet pipe system 5. This cyclic process ensures that the water quality and the distribution of microbial flora in all sub-water tanks 6 always remain uniform and consistent.

[0026] Combined with Figure 1 , Figure 2 and Figure 3As shown, water quality detectors 7 are installed on all the sub-water tanks 6 and the mixing water tank 2. Specifically, water quality detectors 7 are equipped on all the sub-water tanks 6 and the mixing water tank 2 for precise control of water quality monitoring. As the "eyes" in the system, the water quality detectors 7 can monitor and record various indicators in the water body in real time and accurately, providing valuable data support for experimenters and ensuring the scientific nature and accuracy of the experimental process. The water quality detectors 7 usually have the ability to monitor multiple parameters and can simultaneously detect multiple key indicators such as pH value, dissolved oxygen, temperature, turbidity, conductivity, redox potential, and specific ion concentration in the water body. Such comprehensive and detailed monitoring helps experimenters fully understand the overall condition and change trend of the water body. To ensure the accuracy of the monitoring results, the water quality detectors 7 adopt high-precision sensors and advanced measurement technologies. These sensors are highly sensitive and stable, can accurately capture the minute changes in the water body, and convert these changes into quantifiable data outputs. In the entire water circulation and mixing system, water quality detectors 7 are installed on all the sub-water tanks 6 and the mixing water tank 2, enabling the system to have comprehensive water quality monitoring capabilities. Experimenters can understand the quality condition and change trend of the water body in each sub-water tank and the mixing water tank in real time through the monitoring data, and timely adjust the experimental conditions and operation parameters to ensure the accuracy and reliability of the experimental results. At the same time, this comprehensive water quality monitoring also helps to promptly discover and handle potential water quality pollution problems, ensuring the safety and environmental protection of the experimental process.

[0027] Combined with Figure 1 、 Figure 2 and Figure 3 As shown, level gauges 8 are installed on all the sub-water tanks 6 and the mixing water tank 2. Specifically, level gauges 8 are carefully installed on all the sub-water tanks 6 and the mixing water tank 2 for precise control of the water level in the water tanks. As an indispensable monitoring component in the system, the precise measurement and real-time feedback functions of the level gauges 8 ensure the stable operation of the water circulation and mixing system. The level gauges 8 adopt advanced measurement technologies and can accurately sense and measure the liquid level height of the water body in the water tank. Whether it is a clear and transparent water body or a complex water quality containing suspended substances, the level gauges 8 can accurately reflect the water level changes and provide reliable data support for the system. In the water circulation and mixing system, level gauges 8 are installed on all the sub-water tanks 6 and the mixing water tank 2. By monitoring the water level changes in the water tank in real time, experimenters can accurately grasp the operating status and water volume distribution of the system, and thus timely adjust the experimental conditions or operation parameters to ensure the stable operation of the system and the accuracy of the experimental results. The precise measurement function of the level gauges 8 helps to prevent problems such as water tank overflow or dryness, ensuring the safety and environmental protection of the experimental process. The data recording function of the level gauges 8 can also provide valuable historical data support for experimental analysis, helping experimenters to more deeply understand the system performance and optimize the experimental plan.

[0028] Combined with Figure 1, Figure 2 and Figure 3 As shown, a control device 9 is provided on the workbench 1. Specifically, the control device 9 is provided on the workbench 1, which greatly improves the automation level and operation convenience of the system. As the "brain" of the system, the control device 9 is responsible for receiving data information from various sensors (such as the water quality detector 7, the liquid level gauge 8, etc.), and according to the preset program or the instructions of the experimenter, precisely controls each component in the system to ensure the orderly progress of the entire water circulation mixing process. The control device 9 adopts an integrated design, integrating a variety of control functions into a compact unit. This design not only reduces the space occupied by the system, but also simplifies the connection and wiring of the system, improving the overall reliability and aesthetics. The control device 9 is equipped with an intuitive and user-friendly human-machine interface, such as a touch screen or a button panel. The experimenter can easily input instructions, view the system status, adjust parameter settings, etc. through these interfaces to achieve convenient interaction with the system. The intelligent control algorithm built into the control device 9 is the key to the system achieving precise control. These algorithms can automatically adjust the rotation speed of the water pump, the opening degree of the valve, etc. according to the real-time monitored data (such as water quality parameters, liquid level height, etc.) to optimize the water circulation mixing effect and ensure the accuracy of the experimental results. The control device 9 also has the function of data recording and analysis. It can automatically record the key data during the operation of the system, such as water quality parameters, liquid level height, equipment operation time, etc., and provide data analysis tools to help the experimenter deeply explore the laws and trends behind the data, providing strong support for experimental research and optimization. Setting the control device 9 on the workbench 1 makes the operation of the entire water circulation mixing system more simple and efficient. The experimenter only needs to complete the comprehensive control of the system through a simple operation interface without having to frequently shuttle between various components for adjustment. At the same time, the intelligent and remote characteristics of the control device 9 also greatly improve the flexibility and scalability of the system, enabling the system to adapt to more diverse experimental needs and scenarios. In addition, the data recording and analysis function also provides valuable data resources for the experimenter, helping them to more deeply understand the relationship between the system performance and the experimental results, and promoting the continuous in-depth development of experimental research.

[0029] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A water circulation mixing system for initializing the water quality of an experimental water tank, comprising a workbench (1), on which a mixing water tank (2) is arranged, characterized in that: The mixing water tank (2) is provided with a stirring device (3), the bottom of the mixing water tank (2) is connected to a water outlet pipe system (4), the top of the mixing water tank (2) is connected to a water inlet pipe system (5), and the water outlet pipe system (4) and the water inlet pipe system (5) are connected to a plurality of water distribution tanks (6). The mixing water tank (2) can draw water from all the water distribution tanks (6) into the mixing water tank (2) through the water inlet pipe system (5), and after being stirred and mixed by the stirring device (3), the mixed water is redistributed to each water distribution tank (6) through the water outlet pipe system (4), so as to achieve uniform water quality and microbial flora distribution in all the water distribution tanks (6).

2. A water circulation mixing system for initializing water quality in an experimental water tank according to claim 1, characterized in that: The water outlet pipe system (4) comprises a first water outlet (41) connected to the bottom of the mixing water tank (2); the first water outlet (41) is connected to a water outlet pipe (42); the water outlet pipe (42) is provided with a plurality of first water inlets (43) connected to the bottoms of all water distribution tanks (6); and all the first water inlets (43) and the first water outlets (41) are installed with water valves (44).

3. A water circulation mixing system for initializing water quality in an experimental water tank according to claim 2, characterized in that: The water inlet pipe system (5) comprises a second water inlet (51) connected to the top of the mixing water tank (2); the second water inlet (51) is connected to a water inlet pipe (52); and the water inlet pipe (52) is provided with a plurality of second water outlets (53) connected to the tops of all the water distribution tanks (6).

4. A water circulation mixing system for initializing water quality in an experimental water tank according to claim 3, characterized in that: The stirring device (3) comprises a rotating motor (31) arranged on the top of the mixing water tank (2); the output end of the rotating motor (31) is fixedly connected to a rotating shaft (32); and a spiral blade (33) is arranged on the rotating shaft (32).

5. A water circulation mixing system for initializing water quality in an experimental water tank according to claim 4, characterized in that: A water pump is arranged inside the mixing water tank (2), and the water outlet pipe system (4) and the water inlet pipe system (5) are connected to each other through the water pump.

6. A water circulation mixing system for initializing water quality in an experimental water tank according to claim 5, characterized in that: All water distribution tanks (6) and mixing water tanks (2) are provided with water quality detectors (7).

7. A water circulation mixing system for initializing water quality in an experimental water tank according to claim 6, characterized in that: All water distribution tanks (6) and mixing water tanks (2) are provided with liquid level gauges (8).

8. A water circulation mixing system for initializing water quality in an experimental water tank according to claim 7, characterized in that: A control device (9) is provided on the workbench (1).

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