A high-efficiency water supply stirring and mixing device for a waterworks

Abstract

The utility model discloses a kind of high-efficiency water supply stirring mixing devices for waterworks, including mixing pipe, the outer wall top of the mixing pipe is equipped with liquid inlet, one end of the mixing pipe is provided with liquid outlet, its other end center is equipped with transmission shaft, two groups of paddles are provided on the transmission shaft, the utility model is through dosing assembly, flow guide seat and helical flow guide vane, through the high-speed jet dosing of spray head on annular pipe, preliminary diffusion reagent is utilized jet kinetic energy, and put efficiency and uniformity are promoted. Dosing assembly is located between two groups of paddles, reagent is just injected and is cut and stirred by high-speed rotating paddle to realize preliminary mixing, subsequently mixed liquid enters helical flow guide vane region and forms spiral flow state, and the vortex stirred by paddle forms multidimensional water flow disturbance. Through the dual effect of " immediate stirring + helical flow guide", improve raw water and reagent mixing uniformity, ensure mixing effect, compared with traditional device can continuous stirring mixing, improve efficiency.

Description

Technical Field

[0001] This utility model mainly relates to the field of tap water treatment technology, specifically a high-efficiency water supply mixing device for tap water plants. Background Technology

[0002] The process of purifying tap water in a waterworks mainly includes the following steps: coagulation, sedimentation, filtration, and disinfection. After disinfection, the water needs to be tested for water quality. Once it meets the standards, it is pumped and pressurized from the clear water tank and flows into households through the water supply pipeline. During the production process of the waterworks, various agents (such as coagulants and disinfectants) need to be mixed with the raw water to kill pathogenic microorganisms and toxic substances that are harmful to human health, so as to purify the water and ensure water safety. Common mixing methods include hydraulic mixing and mechanical mixing. Hydraulic mixing is easily affected by water quality and quantity, while mechanical mixing has the advantages of high mixing efficiency and is not affected by water quantity. Therefore, mechanical mixing is now more commonly used in engineering.

[0003] Currently, traditional water mixing devices often use a single point to add chemicals, which makes it difficult for the chemicals to spread quickly in the raw water, resulting in local concentrations that are too high or too low. At the same time, the water flow disturbance during the mixing process is monotonous, mostly unidirectional vortex or straight flow, making it difficult for the raw water and chemicals to form a uniform mixture in a short time. It often requires a long mixing time to achieve the desired effect, which limits the continuity and efficiency of water treatment. Utility Model Content

[0004] This utility model provides a solution that addresses the problem of overly simplistic existing technical solutions. It offers a significantly different solution, primarily a high-efficiency water mixing device for waterworks. This addresses the issues raised in the background section regarding traditional water mixing devices, which involve single-point dosing of chemicals, resulting in slow diffusion in the raw water and uneven concentration. Furthermore, the mixing process is characterized by limited water flow disturbance, often consisting of unidirectional vortices or straight flows, making rapid and uniform mixing of raw water and chemicals difficult and requiring prolonged mixing time, thus restricting the continuity and efficiency of the treatment process.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: A high-efficiency water mixing device for a waterworks includes a mixing pipe with an inlet at the top of its outer wall, a drain at one end of the mixing pipe, and a drive shaft at the center of the other end. Two sets of blades are mounted on the drive shaft, and a spiral guide vane and a dosing assembly are installed inside the mixing pipe.

[0006] The dosing assembly includes a dosing tube that is fixedly installed through the top of the mixing tube. One end of the dosing tube is provided with an annular tube, and the outer wall of the annular tube is provided with several nozzles for dispensing agents into the mixing tube.

[0007] More preferably, the outer bottom of the mixing tube is provided with multiple support bases, and each support base has multiple round holes.

[0008] More preferably, one end of the mixing tube is provided with an installation plate, and one side of the installation plate is provided with a flow guide seat. The flow guide seat is shaped like a frustum and is located below the liquid inlet.

[0009] More preferably, a circular hole is provided at the center of both the mounting plate and the flow guide seat, and the drive shaft is rotatably connected to the circular hole of the mounting plate and the flow guide seat.

[0010] More preferably, there are multiple dosing components, and the multiple dosing components are located between the two sets of blades.

[0011] More preferably, the nozzles on the annular pipe are evenly and equidistantly distributed in a ring on its outer wall, and the direction of the nozzle spray holes is opposite to the direction of water flow.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This water supply mixing device, through a dosing assembly, a flow guide seat, and spiral guide vanes, uses 8-12 nozzles evenly distributed on the outer wall of the annular tube of the dosing assembly to deliver chemicals in the form of high-speed jets. The kinetic energy of the jets achieves initial diffusion of the chemicals, improving the efficiency and uniformity of chemical delivery. The dosing assembly is located between two sets of blades. As soon as the chemicals are injected, they are cut and stirred by the high-speed rotating blades, achieving initial mixing. Subsequently, the mixed liquid enters the area of ​​the spiral guide vanes, forming a spiral flow pattern. This spiral flow pattern, combined with the eddies generated by the blade stirring, creates multidimensional water flow disturbance. Through the dual effects of instant stirring and spiral guidance, the mixing uniformity of raw water and chemicals can be improved, ensuring the mixing effect. Compared with traditional mixing devices, it can continuously mix raw water and chemicals, thereby improving the mixing efficiency of water supply.

[0013] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the full cross-section of the present invention; Figure 3 This is an enlarged structural schematic diagram of the drug delivery component of this utility model.

[0015] Numbering on the map: 1. Mixing tube; 2. Support base; 3. Liquid inlet; 4. Liquid outlet; 5. Mounting plate; 6. Flow guide seat; 7. Drive shaft; 8. Paddle blade; 9. Spiral guide vane; 10. Dosing assembly; 1001. Dosing tube; 1002. Annular tube. Detailed Implementation

[0016] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0017] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0018] Please refer to the appendix carefully. Figure 1-3 A high-efficiency water mixing device for a waterworks includes a mixing pipe 1, an inlet 3 at the top of the outer wall of the mixing pipe 1, and a flow sensor installed inside the inlet 3. One end of the mixing pipe 1 has a drain 4, and a water quality monitor and a flow sensor are installed inside the drain 4. The other end has a drive shaft 7 at its center, and two sets of blades 8 are fixedly installed on the drive shaft 7. The mixing pipe 1 has a spiral guide vane 9 and a dosing assembly 10. The lead angle of the spiral guide vane 9 is set to 30°-45°, and the pitch of the spiral guide vane 9 is set to 1.2-1.5 times the diameter of the mixing pipe 1. The flow sensor installed in the inlet 3 and the water quality monitor and flow sensor installed in the drain 4 are interconnected with the system.

[0019] The dosing assembly 10 includes a dosing tube 1001 that is fixedly installed through the top of the mixing tube 1. One end of the dosing tube 1001 is provided with an annular tube 1002. The outer wall of the annular tube 1002 is provided with several nozzles for dosing agents into the mixing tube 1.

[0020] In this embodiment, as Figure 1 and Figure 2 As shown, the bottom of the mixing pipe 1 is equipped with multiple support bases 2. Each support base 2 has several round holes. These support bases 2 can provide stable support for the mixing pipe 1. By using bolts or other fasteners to pass through the round holes on the base, the support base 2 can be firmly installed on the ground, thereby improving the stability of the equipment during operation.

[0021] In this embodiment, as Figure 1 and Figure 2 As shown, one end of the mixing tube 1 is provided with a mounting plate 5, and a flow guide seat 6 is mounted on one side of the mounting plate 5. The flow guide seat 6 adopts a frustum-shaped design and is located below the liquid inlet 3. When the liquid flows through the liquid inlet 3, the frustum-shaped flow guide seat 6 will guide and divert the liquid, thereby reducing the impact force on the drive shaft 7 when the liquid enters and enhancing the stability of the device during operation.

[0022] In this embodiment, as Figure 1 and Figure 2 As shown, a circular hole is opened at the center of both the mounting plate 5 and the guide seat 6. The drive shaft 7 is rotatably connected to these two circular holes. The drive shaft 7 is connected to the mounting plate 5 and the guide seat 6 by a double-end mechanical seal 701. Food-grade grease is injected into the sealing cavity. A power mechanism and a transmission mechanism are set on the side of the mounting plate 5 away from the guide seat 6. The power mechanism can be a combination of a servo motor and a gearbox and is mounted on the mounting plate 5. The power mechanism is connected to the drive shaft 7 through a coupling to drive the blade 8 on the drive shaft 7 to rotate, thereby stirring and mixing the raw water and the reagent entering the mixing pipe 1.

[0023] In this embodiment, as Figure 2 and Figure 3 As shown, there are multiple dosing components 10, all located between two sets of blades 8. This component can extract the chemical through a metering pump. The metering pump is connected to the annular pipe 1002 of the corresponding dosing component 10. The amount of chemical can be adjusted by the metering pump according to the flow rate and water quality of the raw water. The chemical is injected into the mixing pipe 1 through the dosing pipe 1001, the annular pipe 1002 and several nozzles. With the cooperation of the two sets of blades 8, the raw water and chemical entering the mixing pipe 1 can be stirred and mixed.

[0024] In this embodiment, as Figure 3 As shown, 8-12 nozzles are evenly distributed on the annular pipe 1002. These nozzles are arranged in a ring at equal intervals on the outer wall of the annular pipe 1002, and the direction of the nozzle spray hole is opposite to the direction of water flow or at a certain angle, such as 30°. With the help of the metering pump, the agent can be flushed into the raw water in the form of a high-speed jet to achieve rapid diffusion and thus significantly improve the mixing efficiency.

[0025] The specific operating procedure of this utility is as follows: First, connect the corresponding inlet pipe and outlet pipe to the inlet 3 and outlet 4 respectively. Install a valve at outlet 4 to control the discharge. Then, start the pump to draw raw water. The raw water enters from the inlet 3 at the top of the outer wall of the mixing pipe 1 through the inlet pipe. At this time, the frustum-shaped guide seat 6 located below the inlet 3 plays a role in guiding and diverting the inflowing liquid, thereby reducing the impact of liquid impact on the drive shaft 7 and ensuring the stability of the device in the initial operation.

[0026] After the raw water enters the mixing pipe 1, the dosing component 10 starts working in tandem. The system accurately controls the dosage of the agent through the metering pump based on the real-time monitored raw water flow. The agent is delivered to the annular pipe 1002 through the dosing pipe 1001, and then sprayed into the raw water in the form of a high-speed jet by 8-12 nozzles evenly distributed on the outer wall of the annular pipe 1002. The kinetic energy of the jet is used to achieve the initial diffusion of the agent. Meanwhile, the power mechanism on the side of the mounting plate 5 away from the guide seat 6 uses a combination of servo motor and gearbox. It drives the transmission shaft 7 to rotate through transmission components such as coupling. The rotation of the transmission shaft 7 drives the two sets of blades 8 on the shaft to rotate synchronously. Since the dosing component 10 is located between the two sets of blades, the agent is cut and stirred by the rotating blades as soon as it is injected. While completing the initial mixing of the agent and raw water, the mixture is pushed from right to left. Then the mixture enters the area of ​​the spiral guide blade 9. Under the guidance of the guide blade, a spiral flow is formed, which forms a multi-dimensional water flow disturbance with the vortex generated by the blade stirring. Through the dual action of instant stirring and spiral guiding, the mixing uniformity of raw water and agent is improved.

[0027] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A high-efficiency water mixing device for a waterworks, comprising a mixing pipe (1), characterized in that: The mixing tube (1) has an inlet (3) at the top of its outer wall, an outlet (4) at one end, a drive shaft (7) at the center of the other end, two sets of blades (8) on the drive shaft (7), and a spiral guide vane (9) and a dosing assembly (10) inside the mixing tube (1). The dosing assembly (10) includes a dosing tube (1001) that is fixedly installed through the top of the mixing tube (1). One end of the dosing tube (1001) is provided with an annular tube (1002). The outer wall of the annular tube (1002) is provided with several nozzles for dispensing agents into the mixing tube (1).

2. The high-efficiency water mixing device for a waterworks according to claim 1, characterized in that: The bottom of the mixing tube (1) is provided with multiple support bases (2), and each support base (2) has multiple round holes.

3. The high-efficiency water mixing device for a waterworks according to claim 1, characterized in that: One end of the mixing tube (1) is provided with an installation plate (5), and a flow guide seat (6) is provided on one side of the installation plate (5). The flow guide seat (6) is shaped like a frustum and is located below the liquid inlet (3).

4. The high-efficiency water mixing device for a waterworks according to claim 3, characterized in that: A circular hole is opened at the center of both the mounting plate (5) and the guide seat (6), and the drive shaft (7) is rotatably connected to the circular hole of the mounting plate (5) and the guide seat (6).

5. A high-efficiency water mixing device for a waterworks according to claim 1, characterized in that: Multiple dosing components (10) are provided, and multiple dosing components (10) are located between two sets of blades (8).

6. The high-efficiency water mixing device for a waterworks according to claim 1, characterized in that: The nozzles on the annular pipe (1002) are evenly and equidistantly distributed in a ring on its outer wall, and the direction of the nozzle spray holes is opposite to the direction of water flow.

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