CN219709226U - Intelligent equipment for adding water treatment medicines - Google Patents

Abstract

The utility model discloses intelligent equipment for adding water treatment medicines, and relates to the technical field of water treatment. The utility model comprises a sedimentation air floatation chamber, wherein the upper end of the sedimentation air floatation chamber is connected with a high-pressure clear water pipe, one side of the sedimentation air floatation chamber is connected with a turbidity meter, one end of the turbidity meter is connected with a turbidity meter probe, the turbidity meter probe is positioned at the inner side of the sedimentation air floatation chamber, the output end of the high-pressure clear water pipe is connected with a turbidity meter probe cleaning spray head, the turbidity meter probe cleaning spray head is adapted to the position of the turbidity meter probe, one side of the high-pressure clear water pipe is connected with a shunt pipe, the output end of the shunt pipe is connected with a pipe wall cleaning spray head, and the surface of the bottom end side of the sedimentation air floatation chamber is connected with a connecting pipeline; the utility model accurately simulates the sedimentation air floatation chamber and related matched designs required by the online detection of the working process of water treatment equipment, and can rapidly and effectively detect the effects of using the coagulant and the flocculant in water treatment, thereby automatically guiding the addition amount of the coagulant and the flocculant through a program algorithm.

Description

Water treatment medicine adding intelligent equipment

Technical field

The utility model relates to the technical field of water treatment, in particular to intelligent equipment for adding water treatment chemicals.

Background technique

Coagulants and flocculants are widely used in the water treatment process of industrial and domestic water to achieve the purpose of accelerating the separation of solid impurities suspended in the water. Among them, the coagulant uses its countercharge (common positive charge) to neutralize the surface charge of suspended tiny particles (common negative charge), allowing these particles to overcome the strong repulsive force between similar charges, thereby coagulating into smaller particles. Large particles. The main function of the flocculant is to use the long chain structure of polymer organic matter to link the formed large solid particles into giant flocs, so that they can move downward or upward in one direction under the action of gravity or buoyancy on the bubbles, thereby achieving The purpose of quickly separating them from the water body. The flocculants used with coagulants are usually anionic (negatively charged), but cationic (positively charged) or nonionic (uncharged) flocculants are also used. Sometimes flocculants can be used alone without coagulants;

There are already devices that monitor water quality to regulate the amount of chemicals used. Known technologies include:

1. Detect the turbidity of the incoming water of the water treatment equipment to adjust the dosage of chemicals. If the turbidity rises, the control device increases the dosage of coagulant and flocculant in the same proportion according to the preset program.

vice versa;

But because it uses a single parameter, water turbidity, the program cannot separate the separate effects of coagulants and flocculants, making it impossible to adjust the two chemicals individually. In practical applications, the dosage ratio of these two drugs is often a fixed value. When parameters such as the size of fine particles in the water and surface charge intensity change, it is often necessary to independently adjust the dosage of coagulant and flocculant according to changes in water quality to achieve the best treatment effect with the minimum dosage. Fixing the ratio of two pharmaceuticals can lead to pharmaceutical waste and poor water treatment. Secondly, the existing methods cannot reflect the actual water treatment effect and often require another device to monitor the turbidity of the effluent. In addition, the measurement of the existing method is greatly affected by bubbles in the water, and it cannot be applied to the dosage control of air flotation equipment at all. Finally, because the incoming water contains a lot of impurities, the equipment is prone to blockage of the inlet pipe, solid particles are deposited on the turbidimeter probe, resulting in large measurement deviations, etc., so the effect is very poor in practical applications;

2. Another common solution is to control the dosage of medicine by monitoring the turbidity of the effluent. If the effluent turbidity rises, increase the dosage of coagulant and flocculant in the same proportion. vice versa;

This solution has the same problem as the above solution. Even using a single parameter such as turbidity, it is impossible to independently adjust the coagulant and flocculant according to changes in the incoming water particle size or surface charge intensity, resulting in a waste of medicines and ineffective water treatment. good. Moreover, due to the residence time in the water treatment equipment, this solution has serious delay problems, especially in the sedimentation tank. It often takes several hours from adjusting the dosage to seeing the effect. This can cause treatment effects to deviate significantly from the target over long periods of time.

Therefore, we propose smart equipment for adding water treatment chemicals.

Utility model content

This utility model uses equipment to simulate the solid-liquid separation process of sedimentation and air flotation, and achieves prediction of the clarification effect by observing the changes in water turbidity over time. According to the final turbidity and the change speed of the turbidity, the coagulant and the The flocculants are controlled individually and precisely.

In order to solve the above technical problems, the present utility model is realized through the following technical solutions:

The utility model adds intelligent equipment to water treatment chemicals, including a settling air flotation chamber. The upper end of the settling air flotation chamber is connected to a high-pressure clean water pipe. One side of the settling air flotation chamber is connected to a turbidity meter. One end of the turbidity meter A turbidity meter probe is connected, and the turbidity meter probe is located inside the sedimentation air flotation chamber. The output end of the high-pressure clean water pipe is connected with a turbidity meter probe cleaning nozzle. The turbidity meter probe cleaning nozzle is connected to the turbidity meter probe. According to the position, one side of the high-pressure clean water pipe is connected to a shunt pipe, the output end of the shunt pipe is connected to a pipe wall cleaning nozzle, the surface of the bottom end of the settling air flotation chamber is connected to a connecting pipe, and one end of the connecting pipe A water sample inlet is connected, one end of the water sample inlet is connected to the sedimentation and flotation chamber, and the bottom end of the sedimentation and flotation chamber is connected to a water sample drain port; one side of the water sample drain port is connected to a solenoid valve; The pipe wall cleaning nozzle is adapted to the position of the settling air flotation chamber.

Intelligent equipment for adding water treatment chemicals, including a sedimentation air flotation chamber and a water sample tank. The upper end of the sedimentation air flotation chamber is connected to a high-pressure clean water pipe. The output end of the high-pressure clean water pipe is connected to a pipe wall cleaning nozzle. The high-pressure clean water pipe One side is connected to a shunt tube, the output end of the shunt tube is connected to a turbidity meter probe cleaning nozzle, one side of the sedimentation flotation chamber is connected to a turbidity meter, and one end of the turbidity meter is connected to a turbidity meter probe. The turbidity meter probe is located inside the sedimentation and air flotation chamber. The cleaning nozzle of the turbidity meter probe is adapted to the position of the turbidity meter probe. The upper end of the sedimentation and air flotation chamber is also connected to a liquid level detector and a vacuum tube. A sampling and discharging hose is connected to the bottom end of the sedimentation and flotation chamber. One end of the sampling and discharging hose is connected to a water sample tank. A water inlet is connected to the bottom side surface of the water sample tank. A water inlet is connected to the top side surface of the water sample tank. An overflow tank is provided; the bottom end of the water sample tank is connected to a drain valve; the detection end of the liquid level detector extends into the sedimentation and air flotation chamber, and the vacuum end of the vacuum tube extends into the sedimentation and air flotation chamber.

The utility model has the following beneficial effects:

The utility model's intelligent equipment for adding water treatment chemicals distinguishes the effects of coagulants and flocculants, so that the addition amounts of the two can be independently controlled, improving the solid-liquid separation effect and effectively reducing the waste of medicines.

This utility model intelligent device for adding water treatment chemicals intuitively, quickly and reliably predicts the performance of the incoming water in the water treatment equipment by simulating the sedimentation process, so that the addition amounts of coagulants and flocculants can be adjusted in time, providing water Stability of treatment effects.

This utility model adds intelligent equipment for water treatment chemicals. Because it focuses on the sedimentation process rather than single-point turbidity readings, this design effectively avoids the interference of bubbles on the turbidity meter, making the test results more accurate and reliable.

This utility model adds intelligent equipment for water treatment chemicals. The design of the equipment minimizes the deposition of particles on the turbidity meter probe and reduces the deviation of the measurement results.

In summary, using this equipment to monitor the effect of sedimentation or flotation water treatment, and promptly and independently adjusting the addition amount of coagulant and flocculant, can ensure that the water treatment effect is always maintained at a high level. At the same time, chemical usage is kept low. In addition, the device's reliability and tolerance for air bubbles enable it to provide extremely reliable monitoring and control in harsh environments.

Of course, any product implementing the present invention does not necessarily need to achieve all the above-mentioned advantages at the same time.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic diagram of the settlement and air flotation simulation structure designed by this utility model using positive pressure sampling;

Figure 2 is a schematic diagram of the settlement and air flotation simulation structure designed by this utility model using vacuum sampling.

In the picture: 1. Settling air flotation chamber; 2. High-pressure clean water pipe; 3. Overflow tank; 4. Pipe wall cleaning nozzle; 5. Turbidity meter; 6. Turbidity meter probe cleaning nozzle; 7. Connecting pipe; 8 , Water sample inlet; 9. Water sample emptying port; 10. Liquid level detector; 11. Vacuum tube; 12. Sampling and discharging hose; 13. Water sample tank; 14. Water inlet; 15. Drainage valve; 16. The electromagnetic valve.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all implementations. example. Based on the embodiments 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.

Embodiment 1

Please refer to Figure 1: This utility model adds intelligent equipment to water treatment chemicals, including a sedimentation and air flotation chamber 1. The upper end of the sedimentation and air flotation chamber 1 is connected to a high-pressure clean water pipe 2, and one side of the sedimentation and air flotation chamber 1 is connected to a turbidity meter. 5. One end of the turbidity meter 5 is connected with a turbidity meter probe. The turbidity meter probe is located inside the sedimentation flotation chamber 1. The output end of the high-pressure clean water pipe 2 is connected with a turbidity meter probe cleaning nozzle 6, and a turbidity meter probe cleaning nozzle 6 is connected. Adapting to the position of the turbidity meter probe, one side of the high-pressure clean water pipe 2 is connected to a shunt pipe, the output end of the shunt pipe is connected to a pipe wall cleaning nozzle 4, and the bottom side surface of the sedimentation air flotation chamber 1 is connected to a connecting pipe 7, which is One end of 7 is connected to a water sample inlet 8, one end of the water sample inlet 8 is connected to the sedimentation and air flotation chamber 1, and the bottom end of the sedimentation and air flotation chamber 1 is connected to a water sample drain port 9.

A solenoid valve 16 is connected to one side of the water sample drain port 9, and the position of the pipe wall cleaning nozzle 4 is consistent with the position of the settling and flotation chamber 1.

This solution also includes a turbidity meter signal receiving controller, a programmable logic controller (PLC), and a human-computer interaction screen. The turbidity meter signal receiving controller is electrically connected to the turbidity meter 5, and the PLC is connected to the solenoid valve 16 and the sewage discharge respectively. Valve 15 is electrically connected.

Sampling uses the pressure of the water inlet pipe to take water samples. The operation process is as follows:

S1: PLC opens the water sample inlet solenoid valve 16, allowing the incoming water sample to fill the sedimentation flotation chamber 1 and discharge it from the overflow tank 3;

S2: When the water sample reaches the same level as the water inlet pipe (depending on the length of the sampling pipe, usually 5-10 seconds), the solenoid valve 8 of the water sample inlet is closed, and the PLC starts to record the time and turbidity value changes. While the water sample is standing, the solids in the water settle under gravity or float due to the action of air bubbles. The measured turbidity values decrease with time;

S3: If the turbidity does not reach the required flocculation turbidity target within the predetermined time (3-10 minutes), the PLC will increase the amount of flocculant added according to the preset program. If the time to reach the target turbidity is shorter than the predetermined time, the PLC reduces the amount of flocculant added according to the preset program;

S4: The water sample continues to stand until the second preset time (5-10 minutes), and the turbidity meter 5 reads the final turbidity. PLC compares the final turbidity to the procoagulant target turbidity. If the final turbidity is higher than the procoagulant target turbidity, increase the coagulant dosage according to the preset procedure. If the final turbidity is lower than the coagulant target, reduce the amount of coagulant added according to the procedure;

S5: After reading the final turbidity, the PLC opens the solenoid valve 16 of the water sample drain port 9 to discharge the water sample;

S6: PLC opens the high-pressure clean water solenoid valve after emptying the sedimentation flotation chamber 1 (3-5 seconds), and cleans the pipe wall and turbidity meter probe through the pipe wall cleaning nozzle 4;

S7: After cleaning is completed (5-10 seconds), the system can proceed to the next round of measurement.

Embodiment 2

Please refer to Figure 2: Intelligent equipment for adding water treatment chemicals, including a sedimentation air flotation chamber 1 and a water sample tank 13. The upper end of the sedimentation air flotation chamber 1 is connected to a high-pressure clean water pipe 2, and the output end of the high-pressure clean water pipe 2 is connected to the pipe wall. Cleaning nozzle 4, one side of the high-pressure clean water pipe 2 is connected to a shunt pipe, the output end of the shunt pipe is connected to a turbidity meter probe cleaning nozzle 6, one side of the sedimentation flotation chamber 1 is connected to a turbidity meter 5, and one end of the turbidity meter 5 is connected There is a turbidity meter probe. The turbidity meter probe is located inside the sedimentation and flotation chamber 1. The turbidity meter probe cleaning nozzle 6 is adapted to the position of the turbidity meter probe. The upper end of the sedimentation and flotation chamber 1 is also connected to a liquid level detector 10 and a liquid level detector 10 respectively. The vacuum tube 11 and the bottom end of the sedimentation and flotation chamber 1 are connected to a sampling and discharging hose 12. One end of the sampling and discharging hose 12 is connected to the water sample tank 13. The bottom side surface of the water sample tank 13 is connected to a water inlet 14. The water sample tank 13 The top side surface is provided with an overflow groove 3.

A drain valve 15 is connected to the bottom end of the water sample tank 13; the detection end of the liquid level detector 10 extends into the sedimentation and air flotation chamber 1, and the vacuum end of the vacuum tube 11 extends into the sedimentation and air flotation chamber 1.

This solution also includes a turbidity meter signal receiving controller, a programmable logic controller (PLC), and a human-computer interaction screen. The turbidity meter signal receiving controller is electrically connected to the turbidity meter 5, and the PLC is connected to the solenoid valve 16 and the sewage discharge respectively. Valve 15 is electrically connected.

Depending on the application scenario, the water sample collection also uses vacuum suction to directly draw the water sample from the settling tank mixing area, or draw it in the water sample tank 13. The operation process is as follows:

S1: If you use water sample tank 13, you need to ensure that the water sample in the inlet tank is consistent with the water sample in the water inlet pipe of the water treatment equipment. This requires the water inlet to be kept open and the water sample flow rate to ensure a uniform sample.

S2: PLC opens the vacuum generating device and vacuum pipeline solenoid valve. Under the action of negative pressure, the water sample is sucked into the sedimentation flotation chamber 1. When the water level reaches the preset height, the liquid level detector 10 sends a signal to the PLC. The PLC closes the solenoid valve of the vacuum generator and vacuum pipeline. Let the water sample stand.

S3: The PLC starts recording the changes in turbidity over time. While the water sample is standing, the solids in the water settle under gravity or float due to the action of air bubbles. The measured turbidity values decrease with time.

S4: If the turbidity does not reach the required flocculation turbidity target within the predetermined time (3-10 minutes), the PLC will increase the amount of flocculant added according to the preset program. If the time to reach the target turbidity is shorter than the predetermined time, the PLC reduces the amount of flocculant added according to the preset program.

S5: The water sample continues to stand until the second preset time (5-10 minutes), and the turbidity meter 5 reads the final turbidity. PLC compares the final turbidity to the procoagulant target turbidity. If the final turbidity is higher than the procoagulant target turbidity, increase the coagulant dosage according to the preset procedure. If the final turbidity is below the coagulant target, reduce the coagulant addition amount according to the procedure.

S6: After reading the final turbidity, the PLC opens the compressed air solenoid valve to drain the water sample. After emptying (3-5 seconds), close the compressed air solenoid valve.

S7: PLC opens the high-pressure clean water solenoid valve and cleans the pipe wall and turbidity meter probe through the pipe wall cleaning nozzle 4.

S8: After 3-5 seconds, the PLC closes the high-pressure clean water solenoid valve and opens the compressed air solenoid valve again (3-5 seconds) to ensure that the clean water in the settling air flotation chamber 1 and the sampling hose 12 is completely discharged.

S9: After 2 minutes, when the water sample in the water sample tank 13 and the water inlet pipe are consistent, the system can proceed to the next round of measurement.

Note: Vacuum can be generated using a Ventura vacuum generator driven by compressed air to reduce volume and equipment costs.

This solution is used in scenarios where coagulants and flocculants, or one of them, are used in water treatment to remove suspended particles in the water body through sedimentation or flotation. Common areas include domestic water treatment plants, clarification sections of domestic and industrial sewage treatment plants, mineral flotation processes, flotation white water fiber recovery processes in paper mills, etc.

In this plan, the sedimentation flotation chamber 1 is used to accurately simulate the working process of the water treatment equipment. It obtains the incoming water sample mixed with coagulant and flocculant from the water inlet pipe of the water treatment equipment, and makes it stand still in the sedimentation flotation chamber 1 for a period of time (usually 5-10 minutes). During this time, solids in the water will settle to the bottom due to gravity or rise to the top due to dissolved bubbles. A turbidity meter probe is installed in the middle of the sedimentation flotation chamber 1, which will continuously measure the turbidity of the water body at the median height. The decrease rate of turbidity with standing time can reflect the effectiveness of the flocculant, while the final turbidity of the median water sample that has been left standing for a long time reflects the effectiveness of the added amount of coagulant. The principle is as follows:

Coagulant: The main function of coagulant is to neutralize the negative charges on the surface of fine particles so that they can agglomerate together to form larger particles. Accelerate their settling or floating speed in water bodies. Otherwise, the repulsive force of the same charge will cause the fine particles to remain suspended in the water for a very long time (up to several days or even longer). If the amount of coagulant is appropriate, even without flocculant, large particles can settle or be brought to the water surface by bubbles in a relatively short period of time (generally less than 20-30 minutes).

The device determines the coagulation effect by measuring the turbidity at the median height of the water that has been left standing for a long enough time (usually 5-10 minutes), and compares it with the preset value. The preset value is often determined by the water quality requirements of the water treatment equipment. If the turbidity is higher than the effluent quality requirements, it indicates that the amount of coagulant is insufficient and there are still a large number of fine particles in the water body that cannot settle or float, so more coagulant is needed. If the turbidity is lower than the effluent requirement, it indicates that the coagulant effect is too good and there is room to reduce the coagulant to save coagulant costs.

Flocculant: The main function of flocculant is to flocculate the large solid particles formed by the coagulant into agglomerates and accelerate the sinking or flotation speed. If the amount of flocculant is appropriate, the floc volume will be larger and the density will be higher, and the strength of the floc to resist flow will be greater, so it will concentrate on the bottom of the water (sedimentation) or the water surface (flotation) in a short period of time. If the dosage is not enough, the floc will have small volume, low density, and low strength, and it will take longer to settle or float. By monitoring the time it takes for the water sample in the middle of the sedimentation flotation chamber 1 to reach acceptable turbidity, and comparing it with the time parameters required by the water treatment equipment, the appropriateness of the dosage of flocculant can be evaluated. If it takes longer than expected to reach the preset turbidity in the middle of the water sample, it indicates that the flocculation effect is not good and the amount of flocculant needs to be increased. On the contrary, if the time for the middle part of the water sample to reach the preset turbidity is shorter than expected, it indicates that the flocculation effect is too good and there is room to reduce the amount of flocculant to achieve cost savings.

This utility model uses equipment to simulate the solid-liquid separation process of sedimentation and flotation, and predicts the clarification effect by observing the changes in water turbidity over time, and adjusts the coagulant accelerator based on the final turbidity and the change speed of the turbidity. and flocculants to achieve separate and precise control. The test sample is taken from the water that is about to enter the settling tank or flotation tank and already contains all chemicals, thus ensuring the closest prediction of the actual situation of the system. Because the sampling point is very close to the dosing point, the adjustment of the dosing amount can be fed back to the test results in time, ensuring minimal delay. In addition, the design of the settlement and flotation chamber ensures that the monitoring equipment will not be blocked in the water inlet pipe.

Based on the existing technology, this solution only measures a single parameter, the turbidity of the incoming or outgoing water, and cannot determine which specific drug needs to be added in an amount that needs to be adjusted. Therefore, it is often necessary to fix the addition ratio of these two drugs. This cannot adapt to the diversity of changes in incoming water quality. As a result, the control equipment cannot maintain the best processing effect and the most reasonable dosage of drugs.

By using a turbidity meter to observe the changing speed and final turbidity of the water sample turbidity during the settling or flotation process, the present invention effectively distinguishes the functions of the coagulant and the flocculant, thereby enabling precise control of the two drugs. . This effectively ensures the equipment's adaptability to diversified water inflows and greatly improves the effect of reducing solid content in water. And reduce the waste of medicines. In addition, by simulating the sedimentation and air flotation of the incoming water, this technology can quickly and accurately predict the separation of solids in the water treatment equipment, so that the dosage can be adjusted reliably and timely. It ensures the stability of solid-liquid separation effect.

In the description of this specification, reference to the terms "one embodiment," "example," "specific example," etc., means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in the invention. In at least one embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiment does not exhaustively describe all the details, nor does it limit the utility model to only specific implementations. Obviously, many modifications and variations are possible in light of the contents of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can better understand and utilize the present invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (6)

1. Intelligent equipment for adding water treatment chemicals, characterized in that it includes a sedimentation and air flotation chamber (1). The upper end of the sedimentation and air flotation chamber (1) is connected to a high-pressure clean water pipe (2). The sedimentation and air flotation chamber (1) A turbidity meter (5) is connected to one side, and a turbidity meter probe is connected to one end of the turbidity meter (5). The turbidity meter probe is located inside the sedimentation air flotation chamber (1), and the high-pressure clean water pipe (2 ) is connected to the output end of the turbidity meter probe cleaning nozzle (6), the turbidity meter probe cleaning nozzle (6) is adapted to the position of the turbidity meter probe, and a shunt pipe is connected to one side of the high-pressure clean water pipe (2) , the output end of the shunt pipe is connected with a pipe wall cleaning nozzle (4), the bottom side surface of the settling air flotation chamber (1) is connected with a connecting pipe (7), one end of the connecting pipe (7) is connected with water Sample inlet (8), one end of the water sample inlet (8) is connected to the sedimentation and flotation chamber (1), and the bottom end of the sedimentation and flotation chamber (1) is connected to a water sample drain port (9). 2. The intelligent device for adding water treatment chemicals according to claim 1, characterized in that a solenoid valve (16) is connected to one side of the water sample drain port (9). 3. The intelligent equipment for adding water treatment chemicals according to claim 1, characterized in that the pipe wall cleaning nozzle (4) is adapted to the position of the settling air flotation chamber (1). 4. Intelligent equipment for adding water treatment chemicals, which is characterized by including a sedimentation and air flotation chamber (1) and a water sample tank (13). The upper end of the sedimentation and air flotation chamber (1) is connected to a high-pressure clean water pipe (2). The output end of the high-pressure clean water pipe (2) is connected to a pipe wall cleaning nozzle (4), one side of the high-pressure clean water pipe (2) is connected to a shunt pipe, and the output end of the shunt pipe is connected to a turbidity meter probe cleaning nozzle ( 6), a turbidity meter (5) is connected to one side of the sedimentation air flotation chamber (1), and a turbidity meter probe is connected to one end of the turbidity meter (5), and the turbidity meter probe is located in the sedimentation air flotation chamber. (1) Inside, the turbidity meter probe cleaning nozzle (6) is adapted to the position of the turbidity meter probe, and the upper end of the settling air flotation chamber (1) is also connected to a liquid level detector (10) and a vacuum tube (11). ), the bottom end of the sedimentation air flotation chamber (1) is connected to a sampling and discharging hose (12), one end of the sampling and discharging hose (12) is connected to the water sample tank (13), and the water sample tank (13) 13) A water inlet (14) is connected to the bottom side surface, and an overflow tank (3) is provided on the top side surface of the water sample tank (13). 5. The intelligent equipment for adding water treatment chemicals according to claim 4, characterized in that a drain valve (15) is connected to the bottom end of the water sample tank (13). 6. The intelligent equipment for adding water treatment chemicals according to claim 4, characterized in that the detection end of the liquid level detector (10) extends into the settling air flotation chamber (1), and the pumping end of the vacuum tube (11) The vacuum end extends into the settling air flotation chamber (1).