Water pollutant removing device for long-distance water delivery pipeline reactor

Abstract

The invention discloses a water pollutant removing device for a long-distance water delivery pipeline reactor, which comprises a long cylindrical main body pipeline, a water supply tank is connected with a water inlet pipeline, and a water inlet valve is arranged on the water inlet pipeline; the water inlet pipeline is connected with the first inspection well through a concentric reducing pipe, and an electromagnetic flowmeter is arranged between the water inlet pipeline and the first inspection well; the first inspection well is connected with a conveying mechanism, the conveying mechanism is connected with a water outlet device through a flange, the upstream pressure water head is adjusted by controlling the water depth in the water supply tank, the water flow is adjusted by adjusting the opening degree of a water inlet valve and the opening degree of a water outlet valve, and flow-controllable non-constant water flow supply is achieved. The requirements of experiments on stable flow and flow velocity are met, and the heater in the water supply tank can be adjusted, so that the requirements of model experiments on pipeline water flow temperature in various experiment scenes are met. The device can respectively simulate static and dynamic water environments according to needs, and water sampling is simple and easy.

Description

Technical Field

[0001] The invention relates to the field of water pollution control, and in particular to a device for removing water pollutants from a reactor in a long-distance water pipeline. Background Art

[0002] Residential water use is an important part of people's livelihood in my country. In recent years, affected by the lives of residents upstream of the reservoir, agricultural fertilization, agricultural product processing, etc., many water plants that use reservoirs as water sources have odor problems. However, in actual on-site scientific research, due to the limitations of some technical issues, it is difficult to establish effective research measures on site, and it is necessary to establish corresponding experimental models in the laboratory for mechanism research. Most of the current pipeline simulations mainly study short-distance pipelines and water flow characteristics, and mainly study the simulation of hydrodynamic direction. The research on experimental simulation technology for removing water pollutants from the reservoir to the water plant after a sudden water pollutant in the reservoir is still relatively lagging, and it is impossible to further explain the migration law of pollution clouds in long-distance water pipelines. Summary of the invention

[0003] The purpose of the present invention is to provide a device for removing water pollutants from a reactor in a long-distance water pipeline to solve the above-mentioned technical problems.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A long-distance water pipeline reactor for removing water pollutants comprises a long cylindrical main pipeline, a water supply tank connected to a water inlet pipeline, and a water inlet valve is arranged on the water inlet pipeline; the water inlet pipeline is connected to a first inspection well via a concentric reducer, and an electromagnetic flowmeter is arranged between the water inlet pipeline and the first inspection well; the first inspection well is connected to a conveying mechanism, and the conveying mechanism is connected to a water outlet device via a flange.

[0006] Preferably, the conveying mechanism includes a first water pipeline, which is connected to the first inspection well through a flange, the first water pipeline is connected to the second inspection well through a flange, the second inspection well is connected to the second water pipeline through a flange, the second water pipeline is connected to the third inspection well through a flange, the third inspection well is connected to the third water pipeline through a flange, the third water pipeline is connected to the fourth inspection well through a flange, the fourth inspection well is connected to the fourth water pipe through a flange, the fourth water pipe is connected to the fifth water pipe through a flange, the fifth water pipe is connected to the sixth inspection well through a flange, the sixth inspection well is connected to the sixth water pipe through a flange, the sixth water pipe is connected to the seventh inspection well through a flange, the seventh inspection well is connected to the seventh water pipe through a flange, the seventh water pipe is connected to the eighth inspection well through a flange, the eighth inspection well is connected to the eighth water pipe through a flange, and the eighth water pipe is connected to the ninth inspection well through a flange.

[0007] Preferably, the water outlet device includes a drain pipe and a drain water tank, one end of the drain pipe is connected to the ninth inspection well through a flange, and the other end of the drain pipe is connected to the drain water tank through a drain valve.

[0008] Preferably, the bottom of the water supply tank is on the same horizontal line as the water inlet pipe, the first inspection well, the first water delivery pipe, the second inspection well, the second water delivery pipe, the third inspection well, the third water delivery pipe, the fourth inspection well, the fourth water delivery pipe, the fifth inspection well, the fifth water delivery pipe, the sixth inspection well, the sixth water delivery pipe, the seventh inspection well, the seventh water delivery pipe, the eighth inspection well, the ninth water delivery pipe, the ninth inspection well, the drainage pipe, and the top of the drainage tank. The water power in the delivery mechanism comes from the hydrostatic pressure generated by the water depth of the water supply tank.

[0009] Preferably, the water supply tank has a heating device and a water temperature detector.

[0010] Preferably, the volume of the water supply tank is larger than the volume of the conveying mechanism.

[0011] Preferably, the first inspection well, the second inspection well, the third inspection well, the fourth inspection well, the fifth inspection well, the sixth inspection well, the seventh inspection well, the eighth inspection well and the ninth inspection well are all points for placing activated carbon and pre-oxidant and points for taking water samples.

[0012] Preferably, the electromagnetic flowmeter comprises a flow tube, on which a first electrode, a second electrode, a third electrode and a fourth electrode are mounted, and the first electrode, the second electrode, the third electrode and the fourth electrode are respectively located at four end points of the flow tube;

[0013] A fourth electromagnetic coil is disposed between the first electrode and the second electrode, a third electromagnetic coil is disposed between the second electrode and the third electrode, a second electromagnetic coil is disposed between the third electrode and the fourth electrode, and a first electromagnetic coil is disposed between the fourth electrode and the first electrode;

[0014] The first electromagnetic coil, the second electromagnetic coil, the third electromagnetic coil and the fourth electromagnetic coil are all fixedly connected to the flow tube.

[0015] The beneficial effects of the present invention are:

[0016] 1. The present invention adjusts the water flow in the pipeline by setting the size of the water supply tank and the long-distance water pipeline, and the water inlet valve and the drain valve cooperate to achieve controllable and variable experimental water flow. The pressure head of the water supply tank in the full water state is used as the water power, and the small-sized hole flow is used as the water outlet to achieve a slow change of the pressure head, thereby resulting in a stable water flow to ensure the stability of the experimental water flow pressure. It meets the needs of water flow velocity in various scenarios.

[0017] 2. The simulation device is a straight water pipe with a drain valve at the end of the pipe. It can simulate emergency water pollution accidents in long-distance water pipelines. That is, once a pollution accident occurs, the drain valve is opened downstream and the migration position of the pollution cloud is tracked at the same time. Water samples are taken at the inspection well to detect the concentration of pollutants. At the same time, physical or chemical agents can be added to the inspection well to remove pollutants, and the optimal inspection well position and dosage of the agent are found to achieve the best solution for removing pollutants.

[0018] 3. The electromagnetic flowmeter in the present invention is used to measure the flow rate of the process fluid flowing through the flow tube. The electromagnetic flowmeter improves the accuracy and sensitivity by increasing the concentration or density of the magnetic field. The arrangement of multiple electrodes and electromagnetic coils also improves the signal-to-noise ratio, thereby improving the accuracy of the flowmeter. The electromagnetic flowmeter can increase the magnetic field density in the required area of ​​the flow tube, which improves the sensitivity of the flowmeter. The present invention can be used to detect, measure and compensate for the asymmetry of the flow velocity profile of the process fluid. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of a device proposed by the present invention for simulating long-distance water pipelines to remove water pollutants;

[0020] Figure 2 This is a schematic diagram of the pipeline model reaction of Example 1;

[0021] Figure 3 This is a schematic diagram of temperature control in Example 1;

[0022] Figure 4 Schematic diagram of adding activated carbon and potassium permanganate in Example 2;

[0023] Figure 5 It is a structural schematic diagram of the electromagnetic flowmeter of the present invention;

[0024] Figure 6 This is a schematic diagram of the electromagnetic flowmeter of the present invention in a first power-on state;

[0025] Figure 7 This is a schematic diagram of the second power-on state of the electromagnetic flowmeter of the present invention;

[0026] Figure 8 This is a schematic diagram of the electromagnetic flowmeter of the present invention in the third power-on state;

[0027] Fig. 9 This is a schematic diagram of the fourth power-on state of the electromagnetic flowmeter of the present invention;

[0028] Fig.10 This is a schematic diagram of the fifth power-on state of the electromagnetic flowmeter of the present invention;

[0029] Fig.11 This is a schematic diagram of the sixth power-on state of the electromagnetic flowmeter of the present invention;

[0030] Fig.12 This is a schematic diagram of the seventh power-on state of the electromagnetic flowmeter of the present invention;

[0031] Fig.13 This is a schematic diagram of the eighth power-on state of the electromagnetic flowmeter of the present invention.

[0032] Figure numerals: 1. water supply tank; 2. pipeline water inlet valve; 3. water inlet pipe; 4. electromagnetic flowmeter; 5. concentric reducer; 6. first inspection well; 7. first water pipe; 8. second inspection well; 9. second water pipe; 10. third inspection well; 11. third water pipe; 12. fourth inspection well; 13. fourth water pipe; 14. fifth inspection well; 15. fifth water pipe; 16. sixth inspection well; 17. sixth water pipe; 18. seventh inspection well; 19. seventh water pipe; 20. eighth inspection well; 21. eighth water pipe; 22. ninth inspection well; 23. drain pipe; 24. drain valve; 25. drain tank; 26. first electromagnetic coil; 27. second electromagnetic coil; 28. third electromagnetic coil; 29. ​​fourth electromagnetic coil; 30. first electrode; 31. second electrode; 32. third electrode; 33. fourth electrode. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0034] The specific embodiments of the present invention are described below with reference to the accompanying drawings.

[0035] Embodiment 1:

[0036] like Figure 1 As shown, a long-distance water pipeline reactor device for removing water pollutants includes a long cylindrical main pipeline, a water supply tank 1 connected to a water inlet pipeline 3, and a water inlet valve 2 is provided on the water inlet pipeline 3; the water inlet pipeline 3 is connected to a first inspection well 6 through a concentric reducer 5, and an electromagnetic flowmeter 4 is provided between the water inlet pipeline 3 and the first inspection well 6; the first inspection well 6 is connected to a conveying mechanism, and the conveying mechanism is connected to a water outlet device through a flange.

[0037] The conveying mechanism includes a first water pipeline 7, the first water pipeline 7 is connected to the first inspection well 4 through a flange, the first water pipeline 7 is connected to the second inspection well 8 through a flange, the second inspection well 8 is connected to the second water pipeline 9 through a flange, the second water pipeline 9 is connected to the third inspection well 10 through a flange, the third inspection well 10 is connected to the third water pipeline 11 through a flange, the third water pipeline 11 is connected to the fourth inspection well 12 through a flange, the fourth inspection well 12 is connected to the fourth water pipeline 13 through a flange, and the fourth water pipeline 13 is connected to the fifth water pipe 15 through a flange, the fifth water pipe 15 is connected to the sixth inspection well 16 through a flange, the sixth inspection well 16 is connected to the sixth water pipe 17 through a flange, the sixth water pipe 17 is connected to the seventh inspection well 18 through a flange, the seventh inspection well 18 is connected to the seventh water pipe 19 through a flange, the seventh water pipe 19 is connected to the eighth inspection well 20 through a flange, the eighth inspection well 20 is connected to the eighth water pipe 21 through a flange, and the eighth water pipe 21 is connected to the ninth inspection well 22 through a flange.

[0038] The water outlet device includes a drain pipe 23 and a drain water tank 25 . One end of the drain pipe 23 is connected to the ninth inspection well 22 through a flange, and the other end of the drain pipe 23 is connected to the drain water tank 25 through a drain valve 24 .

[0039] The bottom of the water supply tank 1 is on the same horizontal line as the water inlet pipe 3, the first inspection well 6, the first water delivery pipe 7, the second inspection well 8, the second water delivery pipe 9, the third inspection well 10, the third water delivery pipe 11, the fourth inspection well 12, the fourth water delivery pipe 13, the fifth inspection well 14, the fifth water delivery pipe 15, the sixth inspection well 16, the sixth water delivery pipe 17, the seventh inspection well 18, the seventh water delivery pipe 19, the eighth inspection well 20, the ninth water delivery pipe 21, the ninth inspection well 22, the drainage pipe 23, and the top of the drainage tank 25. The water power in the delivery mechanism comes from the hydrostatic pressure generated by the water depth of the water supply tank 1.

[0040] The water supply tank 1 has a heating device and a water temperature detector.

[0041] The volume of the water supply tank 1 is larger than the volume of the conveying mechanism.

[0042] The first inspection well 6, the second inspection well 8, the third inspection well 10, the fourth inspection well 12, the fifth inspection well 14, the sixth inspection well 16, the seventh inspection well 18, the eighth inspection well 20 and the ninth inspection well 22 are all points for placing activated carbon and pre-oxidant and points for taking water samples.

[0043] The long-distance pipeline belongs to the plug flow reactor. There is mixing phenomenon in the direction perpendicular to the liquid flow, but no mixing phenomenon in the direction of liquid flow. The length of the pipeline is L, the cross-sectional area is A, the flow rate in the pipeline is Q, and the flow rate is The concentration at the inlet of the pipe is C1, the reaction rate is r, and the outlet concentration is C0. When the liquid flows through the pipe for a distance of z, the time elapsed is The residence time of the entire reaction is See attached Figure 3 .

[0044] The material balance equation within volume AΔz is:

[0045]

[0046] Let Δz = dz, the above formula can be written as:

[0047]

[0048] in The flow rate U can be used instead, It can be written as:

[0049]

[0050] In steady state, The following equation is obtained:

[0051]

[0052] When the reaction is a first-order reaction, substitute r = -kc into the integral and we get:

[0053] C=C1exp(-kθ)

[0054] C0=C1exp(-kθ)

[0055] Where k is the pollutant degradation coefficient of the pipeline.

[0056] The variables are X1 = residence time, X2 = influent pollutant concentration, and the independent variable Y = effluent pollutant concentration. Assume the equation Y = MX2exp(-kX1)), where M and k are specific coefficients.

[0057] For raw water transportation pipelines, k reflects the comprehensive coefficient of pollutant changes along the transportation pipeline, and is closely related to temperature, pH value, pipeline hydraulics, pipe wall material, pipe wall slope, pipe diameter, pipe wall microorganisms, etc. Different pipe diameters, different temperatures, different pH values, different pipe materials and other factors can cause changes in the k value. Therefore, it is necessary to perform k value simulation calculations for specific pipelines, specific temperatures, specific water quality, etc.

[0058] Models of ammonia nitrogen and oxygen consumption concentration were established to investigate the changes in pollutant concentrations without adding drugs.

[0059] According to the formula:

[0060]

[0061] Where: Cupper is the pollutant concentration monitoring value of the upper section, unit: mg / L; Clower is the pollutant concentration monitoring value of the lower section, unit: mg / L;

[0062] x is the upstream and downstream distance, u is the average flow velocity in the pipeline, unit: m / s; k is the pollutant degradation coefficient, unit: d-1.

[0063] Long-distance water pipeline reactor refers to a method that makes full use of the capacity of the existing raw water pipeline system and the residence time of water in the pipeline, and removes some organic pollutants in the sewage during the transportation process through the biofilm grown on the pipe wall or simple and feasible enhanced treatment technology.

[0064] This experiment simulates a long-distance water pipeline with a length of 36m and a diameter of 100mm. The raw water is a mixture of river water and tap water with a water temperature of 25℃.

[0065] The water pipeline model is used to simulate the actual situation from Jiaokou Reservoir to Maojiaping Water Plant. The total length of the pipeline section from Jiaokou Reservoir to Maojiaping Water Plant is about 10km, and the pipeline diameter is 3m. The experimental model size is obtained by scaling down, and the diameter ratio is 30. The diameter of the water supply tank 1 is 1.5m, the height is 1m, the length of the main pipeline is 36m, the pipeline diameter is 0.1m, and the diameter of the drainage tank 25 is 1.5m and the height is 1m. The pipeline is made of plexiglass. As long as the water used in the water supply tank is pollution-free, the water source this time is a mixture of tap water and river water. 1500L of tap water and 1L of river water are taken. They are only used to simulate the diffusion of pollutants and have nothing to do with the water quality. The actual average flow rate of the pipeline is 17865m3 / h, and the flow velocity is about 0.71m / s. According to the Froude number similarity criterion, the design value of the flow velocity in the model pipeline is about 0.04m / s, and the flow velocity ratio is 17.75.

[0066] This experiment was conducted under the premise that the pipe contained biofilm.

[0067] The test steps include:

[0068] (1) At the beginning of the test, water was injected into the water supply tank. The water source was a mixture of surrounding rivers and tap water. After a period of water addition, the water volume in the water supply tank 1 reached 1500L. The heating device was turned on to control the water temperature in the water supply tank to be constant at 25°C. A sodium chloride solution of known concentration (chloride ion concentration was 29.25g / L) was prepared and added to the water supply tank 1. The solution was stirred evenly. The drain valve 24 was opened and the water inlet valve 2 was opened to make the water flow in the pipe full. The water inlet valve opening was adjusted to stabilize the water flow rate at 0.04m / s.

[0069] According to Q=VA, it can be calculated that the flow rate of water entering the pipeline 7 is 0.02m / s. Use the test instrument to measure the chloride ion concentration of the observation points of the second inspection well 8, the third inspection well 10, the fourth inspection well 12, the fifth inspection well 14, the sixth inspection well 16, the seventh inspection well 18, the eighth inspection well 20, and the ninth inspection well 22 (using a portable conductivity meter to describe the change of its concentration over time), and measure the concentration of ammonia nitrogen, chemical oxygen demand, total nitrogen, and total phosphorus, and describe the change of its concentration with the point. Investigate the removal effect of long-distance pipeline reactors on pollutants. In the absence of biofilm in the pipeline, it is predicted that the concentration of pollutants will not change significantly. After each experiment, the polluted water is discharged through the drain valve 24, and the pipe wall is rinsed with raw water, and the experiment is repeated.

[0070] In order to investigate the pollutant removal effect of the long-distance water pipeline reactor under different water temperature conditions, the setting temperature of the heater was adjusted. According to the annual temperature change, the temperature gradient was set to 15℃, 20℃, 25℃, 30℃, and 35℃. At the beginning of the test, water was injected into the water supply tank 1. The water source came from the mixture of the surrounding river and tap water. After a period of water addition, the water volume in the water supply tank 1 reached 1500L. The heating device was turned on to control the water temperature in the water supply tank 1. The opening of the water inlet valve was adjusted to stabilize the water flow rate at 0.04m / s. The water flow rate in the pipeline was 0.02m / s. Water samples were taken from the fourth inspection well 12 (16m), the fifth inspection well 14 (20m), the sixth inspection well 18 (27m), the seventh inspection well 20 (32m), and the eighth inspection well 22 (36m). The corresponding residence time of the water flow in them was 13min, 16.7min, 22.5min, 26.7min, and 30min. The ammonia nitrogen concentration, chemical oxygen demand, total nitrogen, total phosphorus concentration, and chlorophyll concentration of the water samples in the fourth inspection well 12, the fifth inspection well 14, the sixth inspection well 18, the seventh inspection well 20, and the eighth inspection well 22 were measured, and the changes in their concentration distribution over time were described, and the effect of temperature on the removal of pollutants by long-distance pipeline reactors was studied.

[0071] Embodiment 2:

[0072] like Figure 1-13 As shown, when other parts are the same as Example 1, the difference between this example and Example 1 is that: under the premise that the pipeline does not contain biofilm, the pollutant concentration will not fluctuate significantly during the transportation of raw water through the pipeline, and it is necessary to add agents to remove it. Based on the hydrodynamics and adsorption kinetics mechanism, the treatment effect of adsorbents on pollutants in long-distance pipeline reactors is explored, and the treatment effect of different adsorbents combined with pre-oxidation technology in long-distance pipeline reactors is explored.

[0073] At the beginning of the test, water was injected into the water supply tank 1. The water source was a mixture of surrounding rivers and tap water. After a period of water addition, the water volume in the water supply tank 1 reached 1500L. The heating device was turned on to control the water temperature in the water supply tank to be constant at 25°C. The drainage valve 24 was opened, the water inlet valve 2 was opened, and the flow rate of the water inlet pipeline was adjusted to be stable at 0.02m / s. The flow rate in the long water pipeline was 0.01m / s. 15mg / L of activated carbon powder was added to the first inspection well 6, t=x / u,

[0074] At different observation points, the residence time of activated carbon in the pipeline is 8min, 13min, 22min, 30min, 35min, 42min, 50min, and 60min respectively in the second inspection well 8, the third inspection well 10, the fourth inspection well 12, the fifth inspection well 14, the sixth inspection well 16, the seventh inspection well 18, the eighth inspection well 20, and the ninth inspection well 22. Use a beaker to take 50ml of water samples from inspection wells 10, 14, 18, and 22, and measure the chemical oxygen demand, ammonia nitrogen concentration, total nitrogen, total phosphorus concentration, and chlorophyll concentration of the water samples, describe the curve of its concentration change with the point, and study the effect of the hydraulic residence time of activated carbon in the pipeline on the removal of pollutants.

[0075] The above experimental steps were repeated with the activated carbon concentration gradient set to 25, 30, 40, 50, 70, and 100 mg / L, and the concentration of water quality indicators was measured. The measurement range mainly included ammonia nitrogen, total nitrogen, total phosphorus, chlorophyll concentration, etc. The concentration change curve was described to explore the effect of activated carbon powder dosage on the removal of pollutants in the reactor of long-distance water pipelines.

[0076] Embodiment 3:

[0077] like Figure 1-13 As shown, when other parts are the same as those in Example 1, the difference between this embodiment and Example 1 is that: the electromagnetic flowmeter 4 includes a flow tube, and a first electrode 30, a second electrode 31, a third electrode 32, and a fourth electrode 33 are installed on the flow tube. The first electrode 30, the second electrode 31, the third electrode 32, and the fourth electrode 33 are respectively located at the four ends of the flow tube;

[0078] A fourth electromagnetic coil is disposed between the first electrode 30 and the second electrode 31, a third electromagnetic coil 28 is disposed between the second electrode 31 and the third electrode 32, a second electromagnetic coil 27 is disposed between the third electrode 32 and the fourth electrode 33, and a first electromagnetic coil 26 is disposed between the fourth electrode 33 and the first electrode 30;

[0079] The first electromagnetic coil 26 , the second electromagnetic coil 27 , the third electromagnetic coil 28 , and the fourth electromagnetic coil are all fixedly connected to the flow tube.

[0080] The electromagnetic flowmeter 4 is connected to a pipe which is also connected to a control valve. In the magnetic flowmeter, the monitored process variable is related to the speed of the process fluid passing through the flow tube. The electromagnetic flowmeter 4 can be configured to provide an output for remote transmission to a controller or indicator via a communication bus. The communication bus can be a 4-20 mA process control current loop, a fieldbus connection, a pulse output / frequency output, Protocol communications, wireless communications links, Ethernet or fiber optic connections, or other communications channels to the controller. The system controller can be programmed as a process monitor to display flow information to a human operator or as a process controller to control the process using control valves via the communications bus.

[0081] Electromagnetic flowmeter 4 is shown as a "flange" type flowmeter and electromagnetic flowmeter 4 is shown as a "wafer" type flowmeter. A flange type flowmeter includes a flange for connecting to a process pipe. The present invention is applicable to both configurations. The flow tube may be made of a low magnetic permeability material with an electrically insulating gasket, a flow tube housing, and a first, second, third, and fourth electromagnetic coil disposed adjacent the flow tube. A molded fluid tube is used;

[0082] The first electromagnetic coil 26, the second electromagnetic coil 27, the third electromagnetic coil 28, and the fourth electromagnetic coil are used to generate a magnetic field in the process fluid flowing through the flow tube. The first electrode 30 and the second electrode 31 in the fluid tube provide an electromotive force sensor for sensing the EMF generated in the fluid due to the flow velocity and the external magnetic field. The process fluid flows through the magnetic field in the flow tube, and this flow generates an electromagnetic field in the fluid. The insulating gasket prevents the electromagnetic field from leaking from the fluid to the metal flow tube. The electrodes can sense an induced voltage or an electromagnetic field. The controller is configured to calculate the flow rate of the process fluid according to Faraday's law based on the voltage induced between the first electrode 30 and the second electrode 31, and Faraday's law states that the electromagnetic field or voltage is proportional to the flow velocity of the fluid in the flow tube and the external magnetic field;

[0083] By continuously controlling the first electromagnetic coil 26 , the second electromagnetic coil 27 , the third electromagnetic coil 28 , the fourth electromagnetic coil, the first electrode 30 , the second electrode 31 , the third electrode 32 , and the fourth electrode 33 , the magnetic field can be effectively changed, thereby improving its accuracy.

[0084] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A long-distance water pipeline reactor to remove water pollutants device, comprising a long cylindrical main pipeline, a water supply tank (1) connected to a water inlet pipeline (3), and a water inlet valve (2) on the water inlet pipeline (3), characterized in that: The water inlet pipe (3) is connected to the first inspection well (6) via a concentric reducer (5), and an electromagnetic flowmeter (4) is provided between the water inlet pipe (3) and the first inspection well (6); the first inspection well (6) is connected to a conveying mechanism, and the conveying mechanism is connected to a water outlet device via a flange.

2. The device for removing water pollutants from a long-distance water pipeline reactor according to claim 1 is characterized in that: The conveying mechanism comprises a first water pipeline (7), wherein the first water pipeline (7) is connected to a first inspection well (4) via a flange, the first water pipeline (7) is connected to a second inspection well (8) via a flange, the second inspection well (8) is connected to a second water pipeline (9) via a flange, the second water pipeline (9) is connected to a third inspection well (10) via a flange, the third inspection well (10) is connected to a third water pipeline (11) via a flange, the third water pipeline (11) is connected to a fourth inspection well (12) via a flange, the fourth inspection well (12) is connected to a fourth water pipeline (13) via a flange, and the fourth water pipeline (13) is connected to a third inspection well (10) via a flange. The pipe (13) is connected to the fifth water pipe (15) through a flange, the fifth water pipe (15) is connected to the sixth inspection well (16) through a flange, the sixth inspection well (16) is connected to the sixth water pipe (17) through a flange, the sixth water pipe (17) is connected to the seventh inspection well (18) through a flange, the seventh inspection well (18) is connected to the seventh water pipe (19) through a flange, the seventh water pipe (19) is connected to the eighth inspection well (20) through a flange, the eighth inspection well (20) is connected to the eighth water pipe (21) through a flange, and the eighth water pipe (21) is connected to the ninth inspection well (22) through a flange.

3. The device for removing water pollutants by simulating a long-distance water pipeline reactor according to claim 2, characterized in that: The water outlet device comprises a drainage pipe (23) and a drainage water tank (25); one end of the drainage pipe (23) is connected to the ninth inspection well (22) via a flange, and the other end of the drainage pipe (23) is connected to the drainage water tank (25) via a drainage valve (24).

4. The device for removing water pollutants from a long-distance water pipeline reactor according to claim 3 is characterized in that: The bottom of the water supply tank (1) and the water inlet pipe (3), the first inspection well (6), the first water delivery pipe (7), the second inspection well (8), the second water delivery pipe (9), the third inspection well (10), the third water delivery pipe (11), the fourth inspection well (12), the fourth water delivery pipe (13), the fifth inspection well (14), the fifth water delivery pipe (15), the sixth inspection well (16), the sixth water delivery pipe (17), the seventh inspection well (18), the seventh water delivery pipe (19), the eighth inspection well (20), the ninth water delivery pipe (21), the ninth inspection well (22), the drainage pipe (23), and the top of the drainage tank (25) are all on the same horizontal line, and the water power in the delivery mechanism comes from the hydrostatic pressure generated by the water depth of the water supply tank (1).

5. The device for removing water pollutants from a long-distance water pipeline reactor according to claim 1, characterized in that: The water supply tank (1) is provided with a heating device and a water temperature detector.

6. The device for removing water pollutants from a long-distance water pipeline reactor according to claim 2, characterized in that: The volume of the water supply tank (1) is larger than the volume of the conveying mechanism.

7. The device for removing water pollutants by simulating a long-distance water pipeline reactor according to claim 2, characterized in that: The first inspection well (6), the second inspection well (8), the third inspection well (10), the fourth inspection well (12), the fifth inspection well (14), the sixth inspection well (16), the seventh inspection well (18), the eighth inspection well (20), and the ninth inspection well (22) are all points for placing activated carbon and pre-oxidant, as well as points for taking water samples.

8. The device for removing water pollutants in a long-distance water pipeline reactor according to claim 1 is characterized by: The electromagnetic flowmeter (4) comprises a flow tube, on which a first electrode (30), a second electrode (31), a third electrode (32), and a fourth electrode (33) are mounted, wherein the first electrode (30), the second electrode (31), the third electrode (32), and the fourth electrode (33) are respectively located at four end points of the flow tube; A fourth electromagnetic coil is arranged between the first electrode (30) and the second electrode (31), a third electromagnetic coil (28) is arranged between the second electrode (31) and the third electrode (32), a second electromagnetic coil (27) is arranged between the third electrode (32) and the fourth electrode (33), and a first electromagnetic coil (26) is arranged between the fourth electrode (33) and the first electrode (30); The first electromagnetic coil (26), the second electromagnetic coil (27), the third electromagnetic coil (28), and the fourth electromagnetic coil are all fixedly connected to the flow tube.

Images