A water distribution well for water treatment

Abstract

This invention relates to the technical field of water treatment equipment, specifically to a water distribution well for water treatment, comprising a distribution well and a guide pipe; one end of the guide pipe is connected to an inlet pipe, and the other end extends to the bottom of the distribution well, so that the inlet water enters the interior of the distribution well through the bottom of the distribution well; the bottom of the distribution well is funnel-shaped. By using a guide pipe in conjunction with a funnel-shaped bottom design, and by sealing one end of the guide pipe to the inlet pipe and extending the other end to the bottom of the distribution well, the traditional water inlet path is changed, allowing water to enter from the bottom, driving the overall flow of water within the well. Simultaneously, the funnel-shaped bottom forms an inclined surface that guides a small amount of uncarried silt to slide down to the bottom center, where it is then flushed towards the wellhead by the upward water flow. This utilizes the driving force of the water flow to prevent silt deposition and allows the silt to flow with the water flow to subsequent units, eliminating the need for a sludge removal mechanism and periodic cleaning operations. This solves the problems of complex structure and high maintenance costs associated with adding a sludge removal mechanism to traditional distribution wells.

Description

Technical Field

[0001] This invention relates to the technical field of water treatment equipment, and more specifically, to a water distribution well for water treatment. Background Technology

[0002] In municipal wastewater treatment projects, industrial wastewater treatment projects, and various water treatment plants, the distribution well is a key structure for maintaining the efficient operation of the treatment system. Its core function is to achieve uniform distribution of wastewater flow and hydraulic pressure stabilization, providing a fundamental guarantee for the stable operation of subsequent biological treatment and advanced treatment units. Typically, the core process layout of a wastewater treatment system follows the classic flow of "pretreatment-distribution-biological reaction-sedimentation-filtration-disinfection." The distribution well, as the upstream hub for wastewater diversion and pressure stabilization, is connected sequentially to key treatment units such as biological reaction tanks and secondary sedimentation tanks. The biological reaction tank degrades organic pollutants, nitrogen, phosphorus, and other nutrients in the wastewater through microbial metabolism, while the secondary sedimentation tank is specifically used to intercept activated sludge produced by the biological reaction, achieving sludge-water separation and laying the water quality foundation for subsequent advanced treatment stages. From the initial process design perspective, the core mission of the distribution well is only to achieve uniform wastewater diversion and hydraulic condition stability, ensuring balanced influent flow and stable load for subsequent treatment units; it does not undertake the function of activated sludge interception or solid impurity sedimentation.

[0003] However, in the actual operation of wastewater treatment projects, the raw wastewater entering the treatment plant (including municipal sewage, industrial wastewater, and initial rainwater) often carries a large amount of solid particles. In addition to silt and gravel, it also contains fine suspended solids that are not intercepted by screens, some detached pipe rust, and fine impurities carried in industrial wastewater. Although wastewater treatment systems are equipped with pretreatment facilities such as coarse screens, fine screens, and grit chambers upstream of the distribution well to intercept large impurities and remove inorganic sand particles, some fine silt and light suspended solids still penetrate the pretreatment process and enter the distribution well due to factors such as fluctuations in the quality of raw wastewater (e.g., rainwater carrying a large amount of silt at the beginning of the rainy season) and limitations in the treatment efficiency of pretreatment facilities. If the silt and impurities entering the distribution well are not treated in time, they will gradually settle at the bottom of the distribution well, leading to a series of problems that affect the operation of the sewage treatment system: On the one hand, the continuous accumulation of silt will occupy the effective volume of the distribution well, resulting in a decrease in water distribution capacity and an inability to meet the stable water intake requirements of subsequent biological reaction tanks and other units, causing fluctuations in the load of the treatment units and affecting the degradation efficiency of pollutants; on the other hand, the deposited silt is easily rolled up again by the water flow and enters the subsequent biological reaction tank and secondary sedimentation tank with the sewage. This will not only suddenly increase the load on the biological system, interfere with the microbial metabolic environment, and reduce the biological treatment effect, but also aggravate the sludge-water separation pressure in the secondary sedimentation tank, resulting in excessive suspended solids in the effluent. At the same time, it may cause wear and blockage to subsequent treatment equipment (such as water pumps, aerators, and membrane modules), shorten the service life of the equipment, and increase the probability of failure and downtime.

[0004] To address the issue of sediment deposition in distribution wells, a common technical solution in existing wastewater treatment projects is to add a dedicated sediment collection and discharge mechanism at the bottom of the well to specifically treat deposited impurities. Common structural forms include a conical sediment collection pit at the bottom of the well, used with a sludge pump to extract the deposited sediment and impurities to a sludge treatment system; or a screw conveyor to transport the bottom sediment to a sludge collection device outside the well. Simultaneously, the well's inlet is typically positioned above the conical sediment collection pit to prevent the incoming water flow from directly impacting the bottom sediment and reducing secondary disturbance. However, while this design, with its added sediment collection and discharge mechanism, alleviates the sediment deposition problem to some extent, it still presents numerous technical shortcomings and practical operational challenges when considering the operational characteristics of wastewater treatment projects.

[0005] Firstly, from a structural design and construction perspective, adding sediment collection and discharge mechanisms significantly increases the structural complexity of the distribution wells, contradicting the requirements of efficient construction and compact layout for wastewater treatment plants. The excavation depth of the conical sediment collection pit needs to be adapted to the sediment deposition volume, which not only increases the difficulty of excavating the foundation pit but also requires the pouring of a special foundation for the sludge pump installation. The screw conveyor mechanism also requires reserved installation space and maintenance access. These design considerations all add extra construction steps and extend the construction period. Furthermore, the distribution wells of wastewater treatment plants are mostly located underground or semi-underground in humid and corrosive environments. The installation of related mechanisms must ensure high precision and corrosion resistance to ensure the effectiveness of sediment collection and discharge and the service life of the equipment, further increasing construction costs, construction difficulty, and the pressure of subsequent corrosion prevention and maintenance.

[0006] Secondly, from an operation and maintenance perspective, the existing sludge treatment structure contradicts the continuous operation requirements of wastewater treatment, necessitating significant investment of manpower and resources for regular maintenance. On one hand, components such as sludge pumps and spiral blades in the sludge collection and discharge mechanisms are in constant contact with sand-containing wastewater and corrosive media, making them highly susceptible to wear, blockage, and corrosion. Regular inspection, disassembly, repair, and component replacement by staff are required, increasing equipment maintenance costs and operational failure rates. Furthermore, equipment malfunctions can disrupt sludge discharge, exacerbating sedimentation problems. On the other hand, even with appropriate discharge mechanisms, the presence of light suspended solids and viscous impurities in the wastewater cannot completely prevent sludge residue from remaining at the bottom of the distribution well and the corners of the sludge collection pit. This residue requires regular manual cleaning by staff entering the distribution well, which is a closed or semi-closed space posing a safety risk of toxic and harmful gases (such as hydrogen sulfide). This not only involves high labor intensity but also requires strict adherence to confined space operation procedures, further increasing maintenance costs and safety hazards. In addition, regular equipment maintenance and manual cleaning often require the suspension of the water distribution well, which restricts the water inflow distribution of the entire sewage treatment system, affects the continuous and stable operation of the treatment system, reduces sewage treatment efficiency, and may even lead to excessive sewage discharge due to insufficient treatment capacity.

[0007] Furthermore, from an economic cost perspective, adding sediment collection and discharge mechanisms significantly increases the construction and operation costs of wastewater treatment plants, placing considerable economic pressure on their operation. During the initial construction phase, additional investment is required for equipment purchases (sludge pumps, screw conveyors, etc.), structural modifications, and installation and commissioning. During operation, the equipment consumes a large amount of electricity, and replacement of worn parts requires continuous investment in spare parts. Manual maintenance and confined space operations incur high labor costs. These combined expenses significantly increase the unit cost of wastewater treatment. For small and medium-sized wastewater treatment plants and township wastewater treatment stations, limited budgets and insufficient maintenance personnel mean that excessively high construction and operation costs severely restrict the widespread application of this technology, resulting in the long-term inability to effectively resolve sediment deposition problems in the distribution wells of some small plants, thus affecting treatment efficiency.

[0008] In summary, existing wastewater treatment projects employing silt collection and discharge mechanisms in distribution wells to address sediment deposition have numerous drawbacks, including complex structures, high construction difficulty, high operation and maintenance costs, disruption to continuous system operation, and limited adaptability. These limitations make it difficult to meet the efficient operation requirements of wastewater treatment plants of varying sizes. Therefore, a key technical challenge in the wastewater treatment field is how to effectively address silt and impurity deposition within distribution wells without altering their core water distribution and pressure stabilization functions or adding complex auxiliary mechanisms. This requires simplifying the distribution well's structural design, reducing construction and operation costs, and ensuring the continuous and stable operation of the wastewater treatment system and compliance with effluent quality standards. Summary of the Invention

[0009] The purpose of this invention is to provide a water distribution well for water treatment that can prevent sediment from accumulating inside the well and reduce the difficulty of maintaining it.

[0010] The embodiments of the present invention are achieved through the following technical solutions:

[0011] A water distribution well for water treatment includes a distribution well and a water guide pipe; one end of the water guide pipe is connected to an inlet pipe, and the other end extends to the bottom of the distribution well, so that the inlet water enters the interior of the distribution well through the bottom of the distribution well; the bottom of the distribution well is funnel-shaped.

[0012] Distribution wells are typically partially buried underground, with the inlet pipe extending from the ground to the middle of the well. In existing designs, the distribution well is located below a conical sludge collection pit, and the inlet pipe enters the well directly above this pit, preventing the impact on the pit's interior and thus avoiding the dispersal of deposited sludge. This embodiment, however, uses a guide pipe to direct the water inlet to the bottom of the distribution well, allowing it to flow throughout the well. This prevents sludge deposition and allows the sludge to flow upwards with the water, overturning and flowing downwards towards equipment such as flocculation tanks, eliminating the need for sludge removal mechanisms and regular cleaning. The funnel-shaped bottom of the distribution well, with its sloping surface, effectively reduces sludge adhesion, allowing any sludge that cannot adhere to slide down the slope to the bottom and then be flushed towards the wellhead by the water flow.

[0013] Furthermore, a water distribution component is rotatably provided at the bottom of the water distribution well; the water distribution component is located at the end of the water guide pipe so that the incoming water flows into the interior of the water distribution well through the water distribution component; the water distribution component is provided with a plurality of water distribution holes along its circumference; the axis of the water distribution holes is inclined so that the incoming water flows to the inner wall of the water distribution well after passing through the water distribution holes.

[0014] The raw water entering the distribution well is referred to as the influent. After entering, it is guided by the water distribution holes and flows towards the sloping inner wall at the bottom of the distribution well. If there is sediment on the inner wall, it will be washed away in time to prevent accumulation. However, the water flowing out of the water distribution holes cannot completely cover the inner wall of the distribution well. At this time, the water distribution components can be rotated to allow the water flowing out of the water distribution holes to flush different parts of the inner wall during rotation, thereby achieving complete coverage.

[0015] Furthermore, the axis of the water-dividing hole also has a component along the tangential direction of the outer wall of the water-dividing component, so that when water flows out through the water-dividing hole, it applies a tangential reaction force to the water-dividing component; the axes of the plurality of water-dividing holes are arranged in a coordinated inclined direction, so that the reaction force generated by the water flow in the plurality of water-dividing holes drives the water-dividing component to rotate in the same direction. No additional rotation drive device for the water-dividing component is needed, allowing it to rotate under the action of water flow.

[0016] Furthermore, a water outlet is provided at the center of the water distribution component; the axis of the water outlet is co-linear with the axis of the water distribution component; and a plurality of the water distribution holes are evenly distributed around the water outlet.

[0017] The water flow from the outlet is vertically upward, while the water flow from several branch holes is directed to the surrounding areas. This allows the incoming water to spread outwards after entering the distribution well, preventing the formation of dead zones where sediment can accumulate.

[0018] Furthermore, an anti-boiling plate is installed inside the water distribution well; the anti-boiling plate has several through holes so that the incoming water flows through the through holes to the top opening of the water distribution well. The raw water is slowed down when passing through the anti-boiling plate, thereby forming a stable water surface at the top of the water distribution well.

[0019] Furthermore, the density of the anti-boiling plate is greater than that of water; the inner wall of the water distribution well is provided with a support step below the liquid level to support the anti-boiling plate. The anti-boiling plate sinks below the water surface, thereby creating a buffer distance between the anti-boiling plate and the wellhead, making the water surface calmer.

[0020] Furthermore, the distance between the supporting step and the wellhead is 0.5-1 meter.

[0021] Furthermore, the top of the anti-boiling plate is cone-shaped at the portion between two adjacent through holes. This prevents sediment from accumulating above the anti-boiling plate.

[0022] Furthermore, a positioning ring is provided protruding from the outer wall of the water distribution component; a rotary bearing is provided between the positioning ring and the well wall of the water distribution well.

[0023] Furthermore, a thrust bearing is also provided between the upper surface of the positioning ring and the well wall of the water distribution well. The thrust bearing bears the upward thrust exerted by the water pressure on the water distribution component.

[0024] The technical solutions of the embodiments of the present invention have at least the following advantages and beneficial effects:

[0025] By employing a water guide pipe with a funnel-shaped bottom design, one end of the water guide pipe is sealed and connected to the inlet pipe, while the other end extends to the bottom of the distribution well. This alters the traditional water inlet path, allowing water to enter from the bottom and driving the overall flow of water within the well. Simultaneously, the funnel-shaped bottom forms an inclined surface that guides a small amount of sediment that has not been carried away down to the bottom center, where it is then flushed towards the wellhead by the upward water flow. This utilizes the driving force of the water flow to prevent sediment deposition and allows the sediment to be carried by the water flow to subsequent units. This fundamentally eliminates the need for a sludge removal mechanism and regular cleaning operations, solving the problems of complex structure and high maintenance costs associated with adding a sludge removal mechanism to traditional distribution wells.

[0026] The bottom rotatable water distribution component, combined with the circumferentially inclined water distribution hole design, allows the water distribution component to be installed at the end of the water guide pipe. The circumferentially inclined water distribution hole allows water to flow towards the inner wall of the water distribution well, promptly flushing away the mud and sand adhering to the wall surface. At the same time, the rotation of the water distribution component enables all-round flushing of the inner wall to eliminate sediment dead zones. The water distribution hole axis is further optimized into a composite inclined structure of "facing the inner wall + tangential direction", so that the water flow generates a tangential reaction force in the same direction. It can drive the water distribution component to rotate continuously without the need for an additional drive device, simplifying the structure while reducing the risk of failure and energy consumption.

[0027] The combined design of the central collinear water outlet and the circumferential water distribution holes in the water distribution component allows the central water outlet to guide the water flow vertically upwards, while the circumferential water distribution holes guide the water flow to diffuse in all directions. The two work together to create an all-round diffusion flow of the incoming water in the well, completely eliminating the dead zone in the water flow that easily leads to the accumulation of sediment in traditional water distribution wells, and further improving the anti-sand settling effect.

[0028] An anti-boiling plate with through holes is installed inside the well. The anti-boiling plate slows down and buffers the upward water flow by blocking it, preventing the water from churning violently at the top and ensuring a stable water surface at the top of the distribution well to ensure uniform water distribution. Combined with the anti-boiling plate material with a density greater than water and the support steps below the liquid level, the anti-boiling plate naturally sinks below the water surface, forming a buffer distance with the wellhead. This allows the water flow to diffuse more smoothly after slowing down, improving the calmness of the water surface. At the same time, the area between adjacent through holes at the top of the anti-boiling plate is made conical to eliminate the horizontal bearing surface and prevent sediment from accumulating on the top of the anti-boiling plate.

[0029] The outer wall of the water distributor has a protruding positioning ring. The radial limit is achieved by the rotating bearing between the positioning ring and the well wall, which prevents the water distributor from radially deviating when rotating. At the same time, it reduces the rotational friction resistance to ensure smooth rotation and reduce component wear. In addition, the thrust bearing between the upper surface of the positioning ring and the well wall effectively withstands the upward water pressure of the incoming water on the water distributor, preventing the water distributor from moving upward and ensuring that it rotates stably in the preset position, thus ensuring the long-term reliable operation of the rotating mechanism. Attached Figure Description

[0030] Figure 1 This is an external view of the water distribution well for the water treatment process of this invention.

[0031] Figure 2 A cross-sectional view of a water distribution well for water treatment.

[0032] Figure 3 for Figure 2 Enlarged view of point a in the middle.

[0033] Figure 4 for Figure 3 Enlarged view of point b in the middle.

[0034] Figure 5 This is an isometric view of the water distribution component.

[0035] Figure 6 This is a top view of the water distribution component.

[0036] Attached reference numerals: 1-Water distribution well, 2-Water guide pipe, 3-Water inlet pipe, 4-Water distribution component, 5-Water distribution hole, 6-Water outlet hole, 7-Anti-boiling plate, 8-Through hole, 9-Support step, 10-Positioning ring, 11-Rotating bearing, 12-Thrust bearing. Detailed Implementation

[0037] like Figures 1-6As shown, this embodiment discloses a water distribution well for water treatment, aiming to solve the technical problems of existing water distribution wells 1, such as complex structure, high maintenance costs, and impact on continuous system operation caused by the addition of sediment collection and discharge mechanisms. The water distribution well 1 mainly includes two core components: the well body and the guide pipe 2. One end of the guide pipe 2 is sealed to the inlet pipe 3 of the water treatment system to ensure no leakage, while the other end extends to the bottom of the well 1, allowing raw water to enter its internal space through the bottom. The guide pipe 2 is arc-shaped at the bottom of the well 1, changing the flow direction of the incoming water to vertically upwards. The arc also reduces resistance to water flow. The bottom of the well 1 is designed as a funnel-shaped structure, which creates a natural inclined surface on the inner wall of the well 1, effectively reducing sediment adhesion and retention at the bottom. In a conventional installation scenario where the distribution well 1 is typically partially buried underground and the inlet pipe 3 extends from the ground to the middle of the distribution well 1, this embodiment changes the water inlet path by using the guide pipe 2. This breaks away from the design logic of the existing technology where the inlet pipe 3 is located above the sludge collection pit, allowing the water to enter directly from the bottom and drive the water in the distribution well 1 to form a unified flow. The driving force of the water flow prevents sludge deposition, while allowing suspended sludge to move upward with the water flow and overflow to downstream flocculation tanks and other subsequent treatment units. This fundamentally eliminates the need for traditional sludge removal mechanisms and regular manual cleaning. The inclined surface of the funnel-shaped bottom can also guide a small amount of sludge that is not carried away by the water flow to slide down the slope to the center area at the bottom, where it is then carried upward by the water flow towards the wellhead, further improving the anti-sludge deposition effect.

[0038] To further enhance the anti-sanding effect, a water distribution component 4 can be rotatably installed at the bottom of the water distribution well 1. This component 4 is specifically installed at the end outlet of the water guide pipe 2, allowing the incoming water transported through the water guide pipe 2 to flow into the water distribution well 1 through the water distribution component 4. The water distribution component 4 has several water distribution holes 5 evenly arranged circumferentially, and the axis of each water distribution hole 5 is inclined. The specific arrangement of the water distribution holes 5 can be found in [reference needed]. Figure 3 , Figure 5 and Figure 6 As shown, its design aims to ensure that the incoming water, after flowing out through the water distribution hole 5, flows at an angle and precisely towards the inner wall of the distribution well 1. Because the incoming water, guided by the water distribution hole 5, directly impacts the inclined inner wall at the bottom of the distribution well 1, even if a small amount of sediment initially adheres to the inner wall, it will be promptly washed away by the high-speed water flow, effectively preventing sediment deposition on the wall surface. Considering that a single-direction water distribution hole 5 cannot fully cover the inner wall of the distribution well 1, the rotational movement of the water distribution component 4 allows the water flowing out of the water distribution hole 5 to sequentially flush different parts of the inner wall during rotation, thereby achieving all-around flushing of the inner wall of the distribution well 1 and completely eliminating dead zones for sediment deposition.

[0039] To achieve the rotation of the water distributor 4 without the need for an additional drive device, this embodiment optimizes the axial direction of the water distributor holes 5. The axis of the water distributor holes 5 not only faces the inner wall of the water distribution well 1 but also has a component along the tangential direction of the outer wall of the water distributor 4. In this way, when water flows out at high speed through the water distributor holes 5, it generates a tangential reaction force on the hole wall of the water distributor 4. Simultaneously, the axial tilt directions of several water distributor holes 5 are coordinated to ensure that the reaction forces generated by the water flow in each water distributor hole 5 can form a driving force in the same direction, driving the water distributor 4 to rotate continuously around its own axis in the same direction. This design cleverly utilizes the kinetic energy of the water flow to achieve the rotation of the water distributor 4, eliminating the need for drive equipment such as motors and hydraulic motors. This simplifies the overall structure, reduces the risk of equipment failure and operating energy consumption, and conforms to the design concept of energy conservation and emission reduction.

[0040] Some wastewater often originates from multiple sources, including municipal sewage, industrial wastewater, and initial rainwater. This necessitates the uniform mixing of these multiple water sources. Therefore, a mixing device can be added in front of the distribution well 1 to mix the water sources. The mixed water flows through several distribution holes 5 to various parts inside the distribution well 1, thus achieving further mixing. This also allows for a suitable reduction in the mixing power of the mixing device.

[0041] A water outlet 6 is added at the center of the water distribution component 4. The axis of the water outlet 6 is collinear with the axis of the water distribution component 4, and several water distribution holes 5 are evenly distributed around the water outlet 6. The central water outlet 6 allows part of the incoming water to flow out vertically upward, while the circumferential water distribution holes 5 allow another part of the incoming water to diffuse outward. The combined effect of the two allows the incoming water to form a holistic diffusion flow after entering the water distribution well 1, avoiding dead zones that the water flow cannot reach inside the water distribution well 1. The existence of dead zones in traditional water distribution wells 1 is one of the important reasons for the accumulation and deposition of sediment. This embodiment, through the combined design of the central water outlet 6 and the circumferential water distribution holes 5, allows the water flow to cover all areas inside the water distribution well 1, completely eliminating dead zones from the perspective of water flow distribution, and further improving the anti-sedimentation effect.

[0042] To ensure a stable water surface at the top of distribution well 1 and prevent turbulent flow from affecting the uniformity of subsequent water distribution, an anti-boiling plate 7 is installed inside distribution well 1. This anti-boiling plate 7 has several through holes 8. As the incoming water flows upward, it must pass through these through holes 8 to reach the top opening of distribution well 1. The core function of the anti-boiling plate 7 is to slow down and buffer the upward-flowing water. Because the water flow is blocked by the hole walls when passing through the through holes 8, the flow velocity is significantly reduced, effectively preventing violent turbulence at the top and ensuring a stable water surface at the top of distribution well 1. This ensures that subsequent water flows out evenly through the weir, guaranteeing the stability of the incoming water to the downstream treatment unit. The anti-boiling plate 7 also prevents turbulence at the wellhead when the water pressure in the guide pipe 2 is too high, effectively ensuring the uniformity of the weir flow. This also allows for a suitable reduction in the depth of distribution well 1, thus maintaining a stable water level at the wellhead even at a smaller depth.

[0043] To ensure the anti-boiling plate 7 can stably perform its deceleration and buffering function, it is made of a material with a density greater than water, ensuring it can naturally sink below the water surface. Simultaneously, a support step 9 is installed on the inner wall of the distribution well 1 below the preset liquid level. This support step 9 supports and limits the anti-boiling plate 7, allowing it to be stably fixed at the preset height. The design of the anti-boiling plate 7 sinking below the water surface creates a buffer distance between it and the well opening. After the water flow is decelerated by the anti-boiling plate 7, it needs to further diffuse smoothly within this buffer space, making the water surface at the top of the distribution well 1 calmer and further improving the uniformity of water distribution.

[0044] The distance between the supporting step 9 and the wellhead is set at 0.5-1 meter. This distance range has been verified through multiple tests and can ensure a sufficiently stable water flow while avoiding excessive buffer distance that would waste the effective volume of the distribution well 1. This distance design allows the water flow, after being slowed down by the anti-boiling plate 7, to form a stable flow pattern within the buffer space, completely eliminating water flow disturbance, ensuring the stability of the top water surface, and providing a reliable guarantee for subsequent uniform water distribution.

[0045] To prevent sediment from settling on the top of the anti-boiler plate 7, the portion of the top of the anti-boiler plate 7 located between two adjacent through holes 8 is designed as a conical structure. The surface of the conical structure has no horizontal bearing surface; even if a small amount of sediment rises to the top of the anti-boiler plate 7 with the water flow, it will slide off along the conical surface under its own weight and the action of the water flow, preventing it from settling on the anti-boiler plate 7. This design further improves the anti-sedimentation system, ensuring that there is no possibility of sediment deposition inside the water distribution well 1 from bottom to top.

[0046] To improve the rotational stability of the water distribution component 4, a positioning ring 10 is provided protruding outward on the outer wall of the water distribution component 4. A rotary bearing 11 is installed between the positioning ring 10 and the well wall of the water distribution well 1. The positioning ring 10 acts as a radial limiter, preventing the water distribution component 4 from radially shifting during rotation. The rotary bearing 11 effectively reduces the rotational frictional resistance between the water distribution component 4 and the well wall of the water distribution well 1, allowing the water distribution component 4 to rotate smoothly under the drive of the water flow reaction force, while reducing component wear and extending its service life.

[0047] Considering that the incoming water will generate upward water pressure on the water distributor 4, a thrust bearing 12 is installed between the upper surface of the positioning ring 10 and the well wall of the water distribution well 1 to balance this water pressure and ensure the stability of the rotation of the water distributor 4. The thrust bearing 12 can effectively withstand the upward thrust applied to the water distributor 4 by the water pressure, preventing the water distributor 4 from moving upward under the action of water pressure, ensuring that the water distributor 4 always rotates stably in the preset installation position, and further reducing friction loss during the rotation process, ensuring the long-term stable operation of the entire rotating mechanism.

[0048] It should also be noted that the water distribution well in this embodiment is not only used in sewage treatment scenarios, but also has the same effect in other scenarios such as tap water treatment. Therefore, applying the technical solution of this embodiment to similar scenarios should also be within the protection scope of this patent.

Claims

1. A water distribution well for water treatment, characterized in that: It includes a water distribution well and a water guide pipe; one end of the water guide pipe is connected to the water inlet pipe, and the other end extends to the bottom of the water distribution well, so that the incoming water enters the interior of the water distribution well through the bottom of the water distribution well; the bottom of the water distribution well is funnel-shaped. The bottom of the water distribution well is rotatably equipped with a water distribution component; the water distribution component is located at the end of the water guide pipe so that the incoming water flows into the interior of the water distribution well through the water distribution component; the water distribution component is provided with a plurality of water distribution holes along its circumference; the axis of the water distribution holes is inclined so that the incoming water flows to the inner wall of the water distribution well after passing through the water distribution holes.

2. The water distribution well for water treatment according to claim 1, characterized in that: The axis of the water distribution hole also has a component along the tangential direction of the outer wall of the water distribution component, so that when the water flows out through the water distribution hole, it applies a reaction force to the water distribution component along the tangential direction; the axes of the plurality of water distribution holes are arranged in a coordinated inclined direction so that the reaction force generated by the water flow of the plurality of water distribution holes drives the water distribution component to rotate in the same direction.

3. The water distribution well for water treatment according to claim 2, characterized in that: A water outlet is provided at the center of the water distribution component; the axis of the water outlet is co-linear with the axis of the water distribution component; a plurality of water distribution holes are evenly distributed around the water outlet.

4. The water distribution well for water treatment according to claim 3, characterized in that: The water distribution well is equipped with an anti-boiling plate; the anti-boiling plate is provided with several through holes so that the incoming water flows through the through holes to the top opening of the water distribution well.

5. The water distribution well for water treatment according to claim 4, characterized in that: The density of the anti-boiling plate is greater than that of water; the inner wall of the water distribution well is provided with a support step below the liquid level to support the anti-boiling plate.

6. The water distribution well for water treatment according to claim 5, characterized in that: The distance between the supporting steps and the wellhead is 0.5-1 meter.

7. The water distribution well for water treatment according to claim 6, characterized in that: The top of the anti-boiling plate is cone-shaped at the portion between two adjacent through holes.

8. The water distribution well for water treatment according to claim 7, characterized in that: A positioning ring is provided on the outer wall of the water distribution component; a rotary bearing is provided between the positioning ring and the well wall of the water distribution well.

9. The water distribution well for water treatment according to claim 8, characterized in that: A thrust bearing is also provided between the upper surface of the positioning ring and the well wall of the water distribution well.

Images