Drinking water disinfection system for central main water inlet pipeline

Abstract

The utility model discloses a drinking water disinfection system for a central main water inlet pipeline, relates to the technical field of drinking water disinfection, and aims to solve the technical problems that the current manual dosing operation is tedious, the dosing is easy to be non-uniform, and the water disinfection effect is not ideal, and comprises a mixing mechanism and a dosing mechanism arranged on the mixing mechanism, the mixing mechanism sequentially comprises a water inlet pipe, a reducer pipe and a water outlet pipe, a baffle plate is arranged in the reducer pipe, the dosing mechanism comprises a dosing barrel, an ultrasonic outer clamping type flow meter is arranged at the side end of the dosing barrel, an electromagnetic diaphragm metering pump is arranged at the upper end of the dosing barrel, and the electromagnetic diaphragm metering pump is connected with the dosing barrel. The electromagnetic diaphragm metering pump comprises a water pumping pipe and a conveying pipe. The device disclosed by the utility model has the advantages that the ultrasonic externally-clamped flow meter and the electromagnetic diaphragm metering pump are used for accurately feeding medicines, calculation errors and nonuniform medicine feeding are avoided, the baffle plate and the reducer pipe are used for promoting water flow disturbance and sufficient mixing, the disinfection effect and efficiency are greatly improved, and the safety of drinking water is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of drinking water disinfection technology, and more specifically, to a central main water inlet pipe drinking water disinfection system. Background Technology

[0002] In modern society, water used in aquaculture, agriculture, industry, and some remote mountainous areas for drinking purposes is treated with disinfectants. The following methods are commonly used: ① Ordinary disinfection method: Before disinfection, measure the depth and diameter of the well water or surface water storage tank, calculate the water volume, and calculate the amount of disinfectant to be added based on a chlorine-containing disinfectant concentration of 2.5-5 mg / L available chlorine. Dissolve the calculated chlorine-containing disinfectant in a small amount of water before adding it to the well water or storage tank. If possible, stir the water in the well water or storage tank to help even distribution. Disinfection of the well water and storage tank is recommended 1-2 times daily, ideally in the morning and afternoon. Disadvantages: Inaccurate calculation of the well water and storage tank volume and water consumption; uneven distribution of available chlorine during water flow, making precise disinfection impossible; cumbersome manual dosing process. ② Continuous chlorination disinfection method: To reduce the workload of daily disinfection, continuous disinfection can be used. Fill a container with the required chlorine-containing disinfectant for a week or longer, immerse it 40-50cm below the surface of well water or a water storage tank, and shake it as it is lifted out of the tank to achieve continuous disinfection. The amount of chlorine-containing disinfectant to add for continuous disinfection should be calculated by multiplying the stable volume of the well water or water storage tank by the effective chlorine concentration of 2.5-5 mg / L. Add this amount all at once, and check and replace the disinfectant weekly or longer. Disadvantages: The required dissolution time of the chlorine-containing disinfectant varies significantly with water temperature. It takes 5 minutes at 25℃, 10 minutes at 10℃, and more than 20 minutes at 5℃. In winter, when frequent water changes and additions of chlorine-containing disinfectant are needed, some solid disinfectant may not dissolve completely, failing to achieve the disinfection effect of 2.5-5 mg / L effective chlorine. Furthermore, the shaking method results in more uneven dosing when the disinfectant is not fully dissolved. ③ Over-chlorination disinfection: In special circumstances, such as the occurrence of intestinal infectious diseases, significant changes in the quality of well water and reservoirs, repairs to old and new wells and reservoirs, contamination of well water and reservoirs, or the presence of large numbers of red worms and algae, over-chlorination disinfection can be used. The specific method involves adding a chlorine-containing disinfectant at a concentration of 10-20 mg / L of available chlorine. After disinfection, the well water and reservoir must be refilled and disinfected again. Bacteriological testing should be performed if necessary to ensure water quality meets standards. Disadvantages: When adding a high concentration of 10-20 mg / L of available chlorine according to the volume of the well water and reservoir, if solid disinfectant tablets are added, the tablets will sink to the bottom, and the available chlorine will not reach the top of the well water. Similarly, when adding dissolved chlorine-containing disinfectant, most of the disinfectant will remain on the surface of the well water and will not disinfect the bottom. Therefore, we propose a central main water inlet pipe drinking water disinfection system. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a central main water inlet pipe drinking water disinfection system to solve the technical problems of cumbersome manual dosing operation and uneven dosing, which leads to unsatisfactory water disinfection effect.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a central main water inlet pipeline drinking water disinfection system, including a mixing mechanism and a dosing mechanism installed on the mixing mechanism. The mixing mechanism includes an inlet pipe, a reducing pipe, and an outlet pipe in sequence. Flanges are provided at the ends of the inlet pipe and the outlet pipe. A baffle is provided inside the reducing pipe. The dosing mechanism includes a dosing tank. An ultrasonic clamp-on flow meter is provided on the side of the dosing tank. The detection clip of the ultrasonic clamp-on flow meter is clamped on the outlet pipe. An electromagnetic diaphragm metering pump is provided at the upper end of the dosing tank. The electromagnetic diaphragm metering pump includes a pumping pipe and a delivery pipe. A dosing pipe is installed at the end of the delivery pipe.

[0005] Preferably, the outer surface of the dosing tank is provided with a mounting bracket, which is connected to the inlet pipe and the outlet pipe. The upper end of the dosing tank is provided with a dosing port, and a threaded cap is installed on the dosing port.

[0006] Preferably, the water pumping pipe is located inside the dosing tank, the dosing pipe is connected to the water inlet pipe, the dosing pipe is arranged in a semi-circular shape, and the lower end of the dosing pipe is evenly provided with dosing holes.

[0007] Preferably, a plurality of variable diameter tubes are provided, and the plurality of variable diameter tubes are adjacent to each other. The variable diameter tubes include a first variable diameter section, a second variable diameter section, a third variable diameter section and a connecting section in sequence along the long axis direction. The diameter of the first variable diameter section gradually increases from small to large, and the diameters of the second and third variable diameter sections are both set from large to small.

[0008] Preferably, the baffle plate has a circular viewing angle along its long axis. The baffle plate includes a partition, an arc-shaped part, a flow guide, a trapezoidal part, and a flow restrictor. The arc-shaped part is C-shaped and disposed at the end of the partition. The trapezoidal part is disposed inside the arc-shaped part. The flow guide is bent and disposed at the end of the arc-shaped part. The flow restrictor is disposed at the end of the flow guide. The flow restrictor is V-shaped.

[0009] Preferably, the outer surface of the arc-shaped portion is symmetrically provided with inlets, the arc-shaped portion and the trapezoidal portion form two flow channels, the inlets are connected to the flow channels, the trapezoidal portion, the guide portion and the limiting portion form a counterflow channel, the counterflow channel is connected to the two flow channels, and the limiting portion is symmetrically provided with outlets.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model designs an ultrasonic clamp-on flow meter and an electromagnetic diaphragm metering pump. The ultrasonic clamp-on flow meter monitors the flow rate, velocity, and pressure of drinking water in real time and outputs the signal to the electromagnetic diaphragm metering pump. This allows the electromagnetic diaphragm metering pump to accurately and evenly add disinfectant according to the actual water flow conditions. This avoids the problem of poor disinfection effect caused by inaccurate calculations and uneven dosing in traditional manual dosing. It ensures that the concentration of disinfectant in the water is stable within the effective range, effectively kills bacteria in the water, protects drinking water safety, and solves the problems of cumbersome manual dosing operations and uneven dosing, which result in unsatisfactory disinfection effects.

[0012] 2. This utility model also incorporates a baffle plate structure. The baffle plate's dividing part separates the water flow into two streams, changing the direction of the water flow and creating vortices and turbulence. The water flows into the two flow channels from the inlet of the arc-shaped part. After flowing into the opposing flow channel, the two streams collide, allowing the disinfectant to mix thoroughly with the water. Finally, when the water flows out through the outlet of the flow-limiting part, it is again separated into two streams and continues to pass through the next baffle plate. Through the design of separation, guidance, and opposing flow, the baffle plate causes the water flow to change direction and collide multiple times, forming vortices and turbulence. Under this complex water flow condition, the disinfectant and water can mix thoroughly and quickly, greatly improving disinfection efficiency, reducing the time required for disinfection, and ensuring that the entire water flow is effectively disinfected without leaving any dead zones. Attached Figure Description

[0013] Figure 1 This is a front view structural diagram of the present utility model;

[0014] Figure 2 This is a schematic diagram of the disassembly structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the dosing tube structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the hybrid mechanism structure of this utility model;

[0017] Figure 5 This is a cross-sectional view of the variable diameter pipe of this utility model;

[0018] Figure 6 This is a schematic diagram of the baffle structure of this utility model;

[0019] Figure 7 This is a front view schematic diagram of the baffle plate of this utility model.

[0020] The following are the labels in the diagram: 100, Dosing mechanism; 101, Dosing tank; 102, Mounting frame; 103, Dosing port; 104, Ultrasonic clamp-on flow meter; 105, Electromagnetic diaphragm metering pump; 106, Delivery pipe; 107, Dosing pipe; 200, Mixing mechanism; 201, Inlet pipe; 202, Variable diameter pipe; 2021, First variable diameter section; 2022, Second variable diameter section; 2023, Third variable diameter section; 2024, Connecting section; 203, Outlet pipe; 204, Baffle plate; 2041, Separator; 2042, Arc-shaped section; 2043, Flow guide; 2044, Flow limiting section; 2045, Trapezoidal section; 2046, Flow channel; 2047, Countercurrent channel; 2048, Inlet; 2049, Outlet. Detailed Implementation

[0021] like Figures 1 to 7 As shown, this utility model relates to a central main water inlet pipe drinking water disinfection system, including a mixing mechanism 200 and a dosing mechanism 100 installed on the mixing mechanism 200. The mixing mechanism 200 includes an inlet pipe 201, a reducing pipe 202 and an outlet pipe 203 in sequence. The ends of the inlet pipe 201 and the outlet pipe 203 are provided with flanges. A baffle 204 is provided inside the reducing pipe 202. The dosing mechanism 100 includes a dosing tank 101. An ultrasonic clamp-on flow meter 104 is provided on the side of the dosing tank 101. The detection clip of the ultrasonic clamp-on flow meter 104 is clamped on the outlet pipe 203. An electromagnetic diaphragm metering pump 105 is provided at the upper end of the dosing tank 101. The electromagnetic diaphragm metering pump 105 includes a pumping pipe and a delivery pipe 106. A dosing pipe 107 is installed at the end of the delivery pipe 106. This invention uses an ultrasonic clamp-on flow meter 104 and an electromagnetic diaphragm metering pump 105 to precisely add disinfectant, avoiding calculation errors and uneven dosing. The baffle plate 204 and the reducer 202 promote water flow disturbance and thorough mixing, solving the problem of uneven disinfectant distribution, greatly improving disinfection effect and efficiency, and ensuring drinking water safety.

[0022] Specifically, the outer surface of the dosing tank 101 is provided with a mounting bracket 102, which is connected to the inlet pipe 201 and the outlet pipe 203. The upper end of the dosing tank 101 is provided with a dosing port 103, and a threaded cap is installed on the dosing port 103. Disinfectant can be added into the dosing tank 101 through the dosing port 103, and the threaded rod can close the dosing port 103.

[0023] Furthermore, the pumping pipe is located inside the dosing tank 101, and the dosing pipe 107 is connected to the inlet pipe 201. The dosing pipe 107 is arranged in a semi-circular shape, and the lower end of the dosing pipe 107 is evenly provided with dispensing holes. The semi-circular arrangement of the dosing pipe 107 allows the agent added to the inlet pipe 201 to be distributed over a wider range, which is beneficial for the agent to mix with the water.

[0024] It is worth noting that several reducing pipes 202 are provided, with each reducing pipe 202 adjacent to the other. Along its long axis, each reducing pipe 202 includes a first reducing section 2021, a second reducing section 2022, a third reducing section 2023, and a connecting section 2024. The diameter of the first reducing section 2021 gradually increases, while the diameters of the second and third reducing sections 2022 and 2023 both decrease. The gradual increase in diameter of the first reducing section 2021 causes a gradual decrease in water flow velocity and an increase in cross-sectional area, generating disturbance in the water flow during the diameter change process. Conversely, the decreasing diameters of the second and third reducing sections 2022 and 2023 increase the water flow velocity. Thus, under the influence of these different reducing sections, the water flow continuously experiences changes in velocity and cross-sectional area, generating strong disturbances. This facilitates thorough mixing of the disinfectant with the water, improving the disinfection effect.

[0025] It is worth noting that the baffle 204 is circular in shape along its long axis. The baffle 204 includes a dividing section 2041, an arc-shaped section 2042, a guide section 2043, a trapezoidal section 2045, and a flow-limiting section 2044. The arc-shaped section 2042 is C-shaped and positioned at the end of the dividing section 2041. The trapezoidal section 2045 is positioned within the arc-shaped section 2042. The guide section 2043 is bent at the end of the arc-shaped section 2042. The flow-limiting section 2044 is positioned at the end of the guide section 2043 and is V-shaped. The dividing section 2041 separates the water flow into two streams, causing the water to change direction and form eddies and turbulence, which is beneficial for mixing water and chemicals. The guide section 2043 guides the water flow. When water exits from the baffle 204, the flow-limiting section 2044 separates the water flow into two streams again.

[0026] It is worth noting that the outer surface of the arc-shaped part 2042 is symmetrically provided with inlet ports 2048, and the arc-shaped part 2042 and the trapezoidal part 2045 form two flow channels 2046. The inlet ports 2048 are connected to the flow channels 2046. The trapezoidal part 2045, the guide part 2043 and the flow limiting part 2044 form a counterflow channel 2047. The counterflow channel 2047 is connected to the two flow channels 2046. The flow limiting part 2044 is symmetrically provided with outlet ports 2049. When water flows into the two flow channels 2046 through the inlet 2048 of the arc-shaped section 2042, the water will flow within the flow channels 2046 until it reaches the opposing flow channel 2047. At this point, the two water streams will collide, allowing the water and the agent to mix thoroughly. After the water is discharged from the outlet 2049, it is separated into two streams and passes through the next baffle 204 again. This allows the water to change its flow direction multiple times and for the two streams to collide, promoting turbulence and increasing the disturbance and shear force within the water flow. In turbulent flow, the water and the agent mix more quickly and evenly, which helps to improve the disinfection efficiency. Combined with the diameter change of the reducing pipe 202, the water and the agent can be mixed evenly, ensuring the disinfection effect of the water.

[0027] Working Principle: This embodiment provides a central main water inlet pipeline drinking water disinfection system. In use, the system connects to the central main water inlet pipeline via flanges at the ends of the inlet pipe 201 and outlet pipe 203. Water enters through the inlet pipe 201 and exits through the outlet pipe 203. During this process, an ultrasonic clamp-on flow meter 104 monitors the drinking water flow rate, velocity, and pressure in real time. Based on the flow rate, velocity, and pressure signals provided by the ultrasonic clamp-on flow meter 104, the system outputs them to the electromagnetic diaphragm metering pump 105. The electromagnetic diaphragm metering pump 105 precisely dispenses the water according to the pressure. The chemical is added uniformly according to the flow rate. The chemical is added into the inlet pipe 201 through the dosing pipe 107. Because the dosing pipe 107 is semi-circular and has evenly distributed orifices at its lower end, the chemical can be widely and evenly dispersed within the inlet pipe 201. After the water and chemical are initially mixed in the inlet pipe 201, they enter the reducing pipe 202. Because the diameter of the first reducing section 2021 in the reducing pipe 202 gradually increases, the water flow velocity gradually slows down, the cross-sectional area increases, and disturbance is generated. Meanwhile, the diameters of the second reducing section 2022 and the third reducing section 2023 decrease. This further accelerates the water flow. During this continuous change in pipe diameter, the water flow experiences constant changes in velocity and cross-sectional area, creating strong turbulence that promotes further mixing of the reagent and water. When the mixed water flows through the baffle plate 204, the separator 2041 divides the water flow into two streams, changing the flow direction and creating vortices and turbulence, further enhancing the mixing effect. Simultaneously, the water flows from the inlet 2048 of the arc-shaped section 2042 into the two flow channels 2046, flowing within the flow channels 2046 to the counterflow channel 204. After step 7, the two water streams collide, allowing the disinfectant and water to mix thoroughly. Finally, when the water flows out through the outlet 2049 of the flow restrictor 2044, it is separated into two streams again and continues to pass through the next baffle 204. The flow direction changes multiple times and the water streams collide, continuously promoting the formation of turbulence and increasing internal disturbance and shear force, so that the disinfectant and water reach a fully and uniformly mixed state. The uniformly mixed water is discharged from the outlet pipe 203 into the central main water inlet pipe, completing the entire disinfection process and effectively ensuring the disinfection effect of drinking water.

[0028] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A central main water line drinking water disinfection system, characterized in that, The utility model provides a kind of dosing mechanism (100) and mixing mechanism (200) comprising mixing mechanism (200) and install on mixing mechanism (200), the mixing mechanism (200) sequentially includes water inlet pipe (201), reducing pipe (202) and outlet pipe (203), the end of water inlet pipe (201) and outlet pipe (203) is provided with flange, baffling (204) is provided in reducing pipe (202), the dosing mechanism (100) includes dosing barrel (101), the side end of dosing barrel (101) is provided with ultrasonic external clamp type flowmeter (104), the detection clamp of ultrasonic external clamp type flowmeter (104) is clamped on outlet pipe (203), the upper end of dosing barrel (101) is provided with electromagnetic diaphragm metering pump (105), electromagnetic diaphragm metering pump (105) includes water suction pipe and delivery pipe (106), the end of delivery pipe (106) is equipped with dosing pipe (107).

2. A central main water line drinking water disinfection system according to claim 1, wherein, The outer surface of the dosing barrel (101) is provided with a mounting bracket (102), the mounting bracket (102) is connected with the water inlet pipe (201) and the outlet pipe (203), and the upper end of the dosing barrel (101) is provided with a dosing port (103), and a threaded cap is installed on the dosing port (103).

3. A central main water line drinking water disinfection system according to claim 2, wherein, The water suction pipe is located in the dosing barrel (101), the dosing pipe (107) is communicated with the water inlet pipe (201), the dosing pipe (107) is arranged in a semi-ring shape, and the lower end of the dosing pipe (107) is uniformly provided with a dosing hole.

4. A central main water line drinking water disinfection system according to claim 3, wherein, The reducing pipe (202) is provided with a plurality of reducing pipes (202), and the plurality of reducing pipes (202) are connected end to end, the reducing pipe (202) includes a first reducing portion (2021), a second reducing portion (2022), a third reducing portion (2023) and a connecting portion (2024) along the long axis direction, the pipe diameter of the first reducing portion (2021) gradually increases from small to large, and the pipe diameters of the second reducing portion (2022) and the third reducing portion (2023) are gradually reduced from large to small.

5. A central main water line drinking water disinfection system according to claim 4, wherein, The baffling (204) is circular along the long axis direction, the baffling (204) includes a separation portion (2041), an arc-shaped portion (2042), a flow guiding portion (2043), a trapezoidal portion (2045) and a flow limiting portion (2044), the arc-shaped portion (2042) is arranged in a C shape at the end of the separation portion (2041), the trapezoidal portion (2045) is arranged in the arc-shaped portion (2042), the flow guiding portion (2043) is arranged at the end of the arc-shaped portion (2042), the flow limiting portion (2044) is arranged at the end of the flow guiding portion (2043), and the flow limiting portion (2044) is V-shaped.

6. A central main water line drinking water disinfection system according to claim 5, wherein, The outer surface of the arc-shaped part (2042) is symmetrically provided with an inlet (2048), two flow channels (2046) are formed between the arc-shaped part (2042) and the trapezoidal part (2045), the inlet (2048) communicates with the flow channels (2046), the trapezoidal part (2045), the flow guide part (2043) and the flow limiting part (2044) form a hedging flow channel (2047), the hedging flow channel (2047) communicates with the two flow channels (2046), and the flow limiting part (2044) is symmetrically provided with an outlet (2049).

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