Pipeline type tap water purification device for waterworks

Abstract

The invention relates to the technical field of water source treatment, in particular to a pipeline type tap water purification device for a waterworks, which comprises a high-efficiency purification device mounted on a water flow pipeline, and the high-efficiency purification device comprises a circulation switching device, a water quality filter element, a backwashing cleaning device and a recovery separation device, the circulation switching device is fixedly installed on the water flow pipeline, a filtering circulation area and a cleaning area are arranged in the circulation switching device, the filtering circulation area is used for being communicated with the water flow pipeline, the multiple water quality filtering elements are evenly distributed in the circulation switching device, and the water quality filtering elements are used for filtering water quality; the backwashing cleaning device is installed in a cleaning area of the circulation switching device and used for automatically cleaning the water filter element, and the recycling and separating device is arranged below the backwashing cleaning device, communicated with the backwashing cleaning device and used for recycling washing liquid. The tap water treatment efficiency and quality can be effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of water source treatment, in particular to a pipeline type tap water purification device for a water plant. Background Art

[0002] When filtering and purifying water in a water plant, the water is often first transported through pipes to special purification equipment for treatment. During the water transportation process, some tiny impurities are caused by the water flow pressure, making the water flow more turbid, increasing the processing pressure of the equipment and reducing its purification effect.

[0003] Chinese patent CN211635567U discloses a pipeline-type tap water purification device for a waterworks, including: a pipeline, a delivery pipe, a discharge pipe and a flange. A top cavity is fixedly arranged at the top of the pipeline, and the top cavity is also located above the filter element. A closed cavity is arranged on the inner wall of the pipeline, and the closed cavity is also located at both ends of the filter element. A filter element is arranged inside the pipeline, and the filter element is arranged as a double-layer hollow filter element. The filter element is connected by rotating the arc plate on the surface, and rotates when it contacts the water flow, increasing the contact area with the water flow, effectively filtering the water flow, and achieving the effect of precipitating the debris in the water through the bottom cavity and the filter plate. The inner side of the filter element is divided into four closed cavities through the adjustment frame, which is convenient for adding external filter blocks and easy to adjust.

[0004] The above-mentioned device physically filters the flowing water through the filter element. As time goes by, the filter element will gradually accumulate dirt and impurities during the continuous filtering process, forming a blockage layer. This not only reduces the filtration efficiency of the filter element, but also affects the speed at which water flows through the filter element, and may even cause the pipeline pressure to increase, affecting the stability of the entire water supply system. Secondly, there are significant deficiencies in the replacement and maintenance of existing filter elements. Most devices rely on manual regular inspection and replacement of filter elements, which not only requires a lot of manpower costs, but also may lead to inaccurate replacement timing. Replacing the filter element too early will cause a waste of resources, while replacing it too late may seriously affect the water quality and water supply efficiency due to filter element blockage. In addition, manual operation may also pose safety hazards, such as equipment damage or personal injury caused by improper operation. Summary of the invention

[0005] In view of the above problems, a pipeline-type tap water purification device for a water plant is provided, which can effectively improve the efficiency and quality of tap water treatment through the high-efficiency purification device.

[0006] In order to solve the problems of the prior art, the present invention provides a pipeline-type tap water purification device for a water plant, including a high-efficiency purification device installed on a water flow pipeline, the high-efficiency purification device including a circulation switching device, a water quality filter core, a backwashing cleaning device, and a recovery and separation device; the circulation switching device is fixedly installed on the water flow pipeline, and a filtering circulation area and a cleaning area are provided inside the circulation switching device, and the filtering circulation area is used to connect the water flow pipeline; a plurality of water quality filter cores are provided evenly distributed inside the circulation switching device, and the water quality filter core is used to filter water; the backwashing cleaning device is installed in the cleaning area of ​​the circulation switching device, and the backwashing cleaning device is used to automatically clean the water quality filter core; the recovery and separation device is arranged below the backwashing cleaning device, and the recovery and separation device is connected to the backwashing cleaning device, and the recovery and separation device is used to recover the flushing liquid.

[0007] Preferably, the circulation switching device includes an installation shell, which is provided with a plurality of circulation installation holes and backwash holes, and water inlet joints and water outlet joints are respectively installed on both sides of the circulation installation holes, and a flow detector is installed on the water outlet joint. A switching turntable is installed inside the installation shell, and the switching turntable is used to limit the installation of multiple water quality filter elements. A rotating drive for driving the switching turntable to rotate is also installed on the outside of the installation shell.

[0008] Preferably, a plurality of limit mounting holes are provided on the switching turntable, a rotating mounting sleeve is provided inside each of the limit mounting holes, a transmission slot is provided on the edge of the rotating mounting sleeve, and an inner wall of the rotating mounting sleeve is provided with an internal thread.

[0009] Preferably, the outer wall of the water filter core is provided with an external thread, which matches the internal thread of the rotating mounting sleeve. A water filter layer is also provided on the outside of the water filter core, and a plurality of limit docking grooves are provided on the bottom of the water filter core.

[0010] Preferably, the backwash cleaning device comprises a plurality of transmission flushing mechanisms distributed on the backwash hole, and an outer wall cleaning mechanism is installed at one end of the backwash hole away from the transmission flushing mechanism.

[0011] Preferably, the transmission flushing mechanism includes a flushing pipe installed on the backwashing hole, a limit clamping plate is provided inside the flushing pipe, a water flow driven impeller is installed inside the flushing pipe, a limit connecting shaft is installed on the water flow driven impeller, a resistance nozzle is installed on the limit connecting shaft, a return spring is installed between the resistance nozzle and the limit connecting shaft, a flow channel is provided inside the resistance nozzle, and a plurality of transmission teeth are also provided on the outside of the resistance nozzle.

[0012] Preferably, the outer wall cleaning mechanism includes a guide cover installed at one end away from the transmission flushing mechanism, the guide cover is connected to the sewage separation barrel, a cleaning sleeve is installed inside the guide cover, the interior of the cleaning sleeve is covered with cleaning brushes, a connecting shaft is also installed on the cleaning sleeve, and the outer wall cleaning mechanism also includes a linear pushing device for pushing the connecting shaft to move.

[0013] Preferably, the recovery and separation device includes a sewage separation barrel, which is provided with a sedimentation chamber and a purification chamber inside, the sedimentation chamber is connected to the guide cover, a separation filter layer is installed between the sedimentation chamber and the purification chamber, and the output end of the delivery suction pump is connected to the flushing pipe.

[0014] Preferably, a sedimentation collection bucket is installed at the bottom of the sewage separation barrel, the sedimentation collection bucket is connected to the sedimentation chamber, a sewage discharge inclined pipe is provided at the bottom of the sedimentation collection bucket, a control valve is installed on the sewage discharge inclined pipe, and a delivery suction pump is also installed on the recovery and separation device, and the input end of the delivery suction pump is connected to the purification chamber.

[0015] Preferably, the high-efficiency purification device also includes a filter element removal tool for quickly removing the water filter element, the filter element removal tool includes a limiting fixing sleeve, the outer side of the limiting fixing sleeve is provided with an anti-slip layer, the edge position of the bottom of the limiting fixing sleeve is provided with a plurality of limiting teeth, the limiting teeth match the transmission slot, a rotating disassembly shaft is installed inside the limiting fixing sleeve, a plurality of plug-in teeth are provided at the bottom of the rotating disassembly shaft, the plug-in teeth match the limiting docking slot, and a rotating pressure rod is also installed on the rotating disassembly shaft.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The device significantly enhances the water filtration capacity by introducing high-efficiency purification devices, especially multiple evenly distributed water filter cores. These water filter cores can effectively remove impurities such as suspended matter, particulate matter, some organic matter and microorganisms in the water, ensuring that the water quality reaches higher standards. At the same time, the design of the flow switching device allows the automatic switching of severely clogged water filter cores to the cleaning area without stopping the machine, and activates new water filter cores to take over the work, thereby ensuring the continuity and stability of the filtration operation.

[0018] 2. The built-in backwash cleaning device and recycling separation device of the device realize the automatic cleaning of the water filter element and the recycling of the flushing liquid. It changes the traditional mode of filter element replacement relying on manual regular inspection, which not only greatly reduces labor costs, but also improves maintenance efficiency.

[0019] 3. Through real-time monitoring and automatic switching mechanisms, the filter element is ensured to operate in the best condition, avoiding the waste of resources and water supply risks caused by replacing the filter element too early or too late. In addition, automated operation also reduces the possibility of human operating errors and improves the safety and reliability of the system.

[0020] 4. The design of the recovery and separation device fully considers the needs of resource recycling and environmental protection. Through filtration and precipitation, the recovery and separation device can effectively separate the impurity particles in the flushing liquid. The purified flushing liquid can be used again in the backwashing process, thus realizing the recycling of water resources. It reduces the waste of water resources and the impact of wastewater discharge on the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of a pipeline-type tap water purification device used in a water plant.

[0022] Figure 2 The present invention is a front view of a pipeline-type tap water purification device used in a waterworks.

[0023] Figure 3 yes Figure 2 Cross-sectional view at section AA.

[0024] Figure 4 yes Figure 2 Cross-sectional view at section BB.

[0025] Figure 5 The present invention is a three-dimensional schematic diagram of a flow switching device in a pipeline-type tap water purification device used in a water plant.

[0026] Figure 6 yes Figure 5 A partial enlarged view of point B in the middle.

[0027] Figure 7 It is a three-dimensional schematic diagram of a water filter element in a pipeline-type tap water purification device used in a water plant.

[0028] Figure 8 The present invention is a planar cross-sectional stereoscopic diagram of a transmission flushing mechanism in a pipeline-type tap water purification device used in a waterworks.

[0029] Fig. 9 The utility model is a three-dimensional schematic diagram of an outer wall cleaning mechanism in a pipeline type tap water purification device used in a water plant.

[0030] Fig.10 The utility model is a three-dimensional schematic diagram of a filter element disassembly tool in a pipeline type tap water purification device used in a water plant.

[0031] The numbers in the figure are:

[0032] 1. Flow switching device; 11. Mounting shell; 112. Backwashing hole; 12. Switching turntable; 121. Rotating mounting sleeve; 122. Transmission slot; 123. Internal thread; 13. Rotating driver; 14. Water inlet connector; 15. Water outlet connector; 151. Flow detector; 2. Water filter element; 21. Water filter layer; 22. External thread; 23. Limiting docking groove; 3. Backwashing cleaning device; 31. Transmission flushing mechanism; 311. Flushing pipeline; 3111. Limiting card plate; 312. Water flow driving impeller; 313. Limiting connecting shaft; 314. Contact nozzle; 3141 , transmission latch; 3142, flow channel; 315, reset spring; 32, outer wall cleaning mechanism; 321, guide cover; 322, cleaning sleeve; 323, connecting shaft; 324, linear pushing device; 4, recovery and separation device; 41, sewage separation barrel; 411, sedimentation chamber; 412, purification chamber; 413, separation filter layer; 414, sedimentation collection bucket; 415, sewage inclined pipe; 416, control valve; 42, delivery suction pump; 51, limit fixing sleeve; 511, limit latch; 52, rotating disassembly shaft; 521, plug-in latch; 53, rotating pressure rod; 6, water flow pipeline. DETAILED DESCRIPTION

[0033] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] See also Figures 1 to 10 As shown, a pipeline-type tap water purification device for a water plant includes a high-efficiency purification device installed on a water flow pipeline 6, and the high-efficiency purification device includes a circulation switching device 1, a water quality filter element 2, a backwash cleaning device 3, and a recovery and separation device 4; the circulation switching device 1 is fixedly installed on the water flow pipeline 6, and a filtering circulation area and a cleaning area are provided inside the circulation switching device 1, and the filtering circulation area is used to connect the water flow pipeline 6; a plurality of water quality filter elements 2 are evenly distributed inside the circulation switching device 1, and the water quality filter element 2 is used to filter water; the backwash cleaning device 3 is installed in the cleaning area of ​​the circulation switching device 1, and the backwash cleaning device 3 is used to automatically clean the water quality filter element 2; the recovery and separation device 4 is arranged below the backwash cleaning device 3, and the recovery and separation device 4 is connected to the backwash cleaning device 3, and the recovery and separation device 4 is used to recover the flushing liquid.

[0035] The circulation switching device 1 is fixedly mounted on the water flow pipe 6 as a portal for water flow to enter the purification system. A plurality of evenly distributed water quality filter cores 2 are installed inside the circulation switching device 1, which can effectively remove impurities such as suspended matter, particulate matter, some organic matter and microorganisms in the water. The circulation switching device 1 is divided into a filtering circulation area and a cleaning area. The filtering circulation area is directly connected to the water flow pipe 6 to ensure normal filtering operation; as the water flows through, impurities will gradually accumulate on the surface of the water quality filter core 2 to form a blocking layer, which affects the filtering efficiency and water flow rate. The cleaning area is used to receive the water quality filter core 2 to be cleaned and perform backwashing treatment. Through the built-in mechanical or electronic control system, the blockage of the water quality filter core 2 is monitored in real time, and the position of the water quality filter core 2 is automatically switched. When it is detected that the water quality filter core 2 is seriously blocked, the system will automatically switch the water quality filter core 2 to the cleaning area, and at the same time activate another set of new water quality filter cores 2 to enter the filtering circulation area to ensure uninterrupted water supply and filtration. The backwash cleaning device 3 is located in the cleaning area of ​​the circulation switching device 1, which is specifically used to perform backwashing treatment on the water quality filter core 2 switched thereto. The backwash cleaning device 3 uses high-pressure water flow to reversely spray the surface of the water filter element 2, vigorously flushes and removes the attached particulate impurities, and restores the filtering performance of the water filter element 2. The backwashing process can be set to be timed or automatically triggered according to the degree of blockage of the water filter element 2. The recovery and separation device 4 is arranged below the backwash cleaning device 3, directly connected to the backwashing system, and is responsible for receiving and processing the flushing liquid generated by backwashing. The recovery and separation device 4 separates the impurity particles in the flushing liquid by filtering and precipitation, and the purified flushing liquid can be recycled in the backwashing process to reduce the waste of water resources. The entire device is equipped with an advanced automatic control system to realize the intelligent management of the processes such as switching of the water filter element 2, backwashing and flushing liquid recovery. The integrated and automated design of the device realizes the efficient filtration, automatic cleaning and recycling of the flushing liquid of the water filter element 2, effectively solves many problems existing in the traditional water filter element 2 filtration system, and improves the efficiency and quality of tap water treatment.

[0036] See also Figures 1 to 5 As shown, the circulation switching device 1 includes a mounting shell 11, on which a plurality of circulation mounting holes and backwashing holes 112 are provided, and a water inlet joint 14 and a water outlet joint 15 are respectively installed on both sides of the circulation mounting holes, and a flow detector 151 is installed on the water outlet joint 15, and a switching turntable 12 is installed inside the mounting shell 11, and the switching turntable 12 is used to limit the installation of a plurality of water quality filter elements 2, and a rotating driver 13 for driving the switching turntable 12 to rotate is also installed on the outside of the mounting shell 11.

[0037] The circulation switching device 1 is directly installed and connected to the water flow pipe 6 of the water plant through the water inlet joint 14 and the water outlet joint 15 thereon. The water inlet joint 14 introduces the tap water to be purified, and the water outlet joint 15 outputs the purified water. The flow detector 151 installed on the water outlet joint 15 monitors the water flow velocity in real time, providing data support for the subsequent filtration efficiency evaluation and automatic switching control. A plurality of water quality filter cores 2 are evenly installed on the switching turntable 12. As the switching turntable 12 rotates in the mounting housing 11, these water quality filter cores 2 enter the filtration circulation area in turn. When the tap water enters the circulation switching device 1 through the water inlet joint 14, it first flows through these water quality filter cores 2 to remove impurities such as suspended matter, particulate matter, some organic matter and microorganisms in the water. The flow detector 151 continuously monitors the water outlet velocity. When the water quality filter core 2 is blocked and the water flow velocity is significantly reduced, the control system will receive this signal. The control system determines which specific group of water quality filter cores 2 needs to be cleaned based on the data of the flow detector 151. Subsequently, the rotary drive 13 automatically starts, switches the severely clogged water filter element 2 to the cleaning area, and activates another set of new water filter elements 2 to enter the filtering circulation area, achieving seamless switching and ensuring uninterrupted water supply. When the water filter element 2 is switched to the cleaning area, the backwash cleaning device 3 starts. The high-pressure water flow is reversely sprayed to the water filter element 2 through the backwash hole 112, and the attached particulate impurities are strongly flushed away.

[0038] See also Figure 5 and Figure 6 As shown, the switch turntable 12 is provided with a plurality of limit mounting holes, each of which is provided with a rotating mounting sleeve 121 , the edge of the rotating mounting sleeve 121 is provided with a transmission slot 122 , and the inner wall of the rotating mounting sleeve 121 is provided with an internal thread 123 .

[0039] A rotating mounting sleeve 121 is provided inside the limiting mounting hole on the switching turntable 12, and an internal thread 123 is provided on the inner wall of the rotating mounting sleeve 121 for fixing and mounting the water quality filter element 2. This design ensures the stability and reliability of the water quality filter element 2 during the filtering process, and is convenient for disassembly and maintenance. When the tap water enters the circulation switching device 1 through the water inlet joint 14, it first flows through the water quality filter element 2 installed on the switching turntable 12. The water quality filter element 2 effectively removes impurities such as suspended matter, particulate matter, some organic matter and microorganisms in the water, and the purified water flows out from the water outlet joint 15. The flow detector 151 on the water outlet joint 15 continuously monitors the water flow rate. When the water quality filter element 2 significantly decreases the water flow rate due to blockage, the control system will receive this signal. According to the data of the flow detector 151, the control system then automatically starts the rotary drive 13, drives the switching turntable 12 to rotate, switches the severely blocked water quality filter element 2 to the cleaning area, and activates another set of new water quality filter elements 2 to enter the filtering circulation area, realizing seamless switching and ensuring uninterrupted water supply. When the water filter element 2 is switched to the cleaning area, the backwash cleaning device 3 is started. High-pressure water is sprayed back to the surface of the water filter element 2 through the backwash hole 112. At this time, the transmission slot 122 of the rotating mounting sleeve 121 cooperates with the transmission mechanism of the backwash cleaning device 3, so that the rotating mounting sleeve 121 drives the water filter element 2 to rotate. This rotary cleaning method can more comprehensively flush and remove attached particulate impurities and improve the cleaning effect. Through rotary cleaning, impurities on the surface of the water filter element 2 are effectively removed, and its filtering performance is restored. The cleaned water filter element 2 can re-enter the filtering circulation area, or be used as a spare core.

[0040] See also Figure 3 , Figure 4 and Figure 7 As shown, the outer wall of the water filter core 2 is provided with an external thread 22, which matches the internal thread 123 of the rotating mounting sleeve 121. The outer side of the water filter core 2 is also provided with a water filter layer 21, and the bottom of the water filter core 2 is provided with multiple limiting docking grooves 23.

[0041] Tap water enters the circulation switching device 1 through the water inlet joint 14 and flows through the water quality filter core 2 evenly distributed on the switching turntable 12. The water quality filter core 2 removes impurities such as suspended matter, particulate matter, some organic matter and microorganisms in the water through the water quality filter layer 21 on its outer side. The outer wall of the water quality filter core 2 is provided with an external thread 22, which matches the internal thread 123 of the rotating mounting sleeve 121 on the switching turntable 12 to achieve a stable installation. The bottom of the water quality filter core 2 is provided with a limit docking groove 23, which is convenient for maintenance personnel to rotate and disassemble the water quality filter core 2.

[0042] See also Figures 1 to 4As shown, the backwash cleaning device 3 includes a plurality of transmission flushing mechanisms 31 distributed on the backwashing hole 112 , and an outer wall cleaning mechanism 32 is installed at one end of the backwashing hole 112 away from the transmission flushing mechanism 31 .

[0043] The backwash cleaning device 3 is provided with a plurality of transmission flushing mechanisms 31 distributed on the backwashing holes 112. The main function of the backwash cleaning device 3 is to guide the high-pressure flushing liquid to flow to the water quality filter element 2 to perform the backwashing operation. While guiding the flushing liquid to flow, the transmission flushing mechanism 31 also has the function of converting the flowing cleaning liquid into rotational kinetic energy. The rotational kinetic energy converted by the transmission flushing mechanism 31 is transmitted to the rotating installation sleeve 121 on the switching turntable 12. The rotating installation sleeve 121 starts to rotate, thereby driving the water quality filter element 2 installed therein to rotate synchronously.

[0044] The backwash hole 112 is provided with an outer wall cleaning mechanism 32 at one end away from the transmission flushing mechanism 31. The outer wall cleaning mechanism 32 can directly act on the outer wall of the water filter element 2 during the backwashing process. When the water filter element 2 starts to rotate under the drive of the transmission flushing mechanism 31, the outer wall of the water filter element 2 will generate friction with the working end of the outer wall cleaning mechanism 32. This friction, combined with the reverse injection of the flushing liquid, can quickly and effectively remove the particulate impurities and dirt attached to the outer wall of the water filter element 2.

[0045] The friction of the outer wall cleaning mechanism 32 and the backwashing effect of the flushing liquid complement each other and jointly improve the backwashing cleaning effect. The high-pressure spray of the flushing liquid can wash away impurities on the surface, while the friction of the outer wall cleaning mechanism 32 can further clean deeply, ensuring that the water quality filter element 2 is thoroughly cleaned.

[0046] The backwash cleaning device 3 can ensure that the water filter element 2 maintains efficient and stable filtering performance during long-term use, thereby improving the efficiency and quality of tap water treatment.

[0047] See also Figure 4 and Figure 8 As shown, the transmission flushing mechanism 31 includes a flushing pipe 311 installed on the backwashing hole 112, a limit clamping plate 3111 is provided inside the flushing pipe 311, a water flow driven impeller 312 is installed inside the flushing pipe 311, a limit connecting shaft 313 is installed on the water flow driven impeller 312, a resistance nozzle 314 is installed on the limit connecting shaft 313, a return spring 315 is installed between the resistance nozzle 314 and the limit connecting shaft 313, a flow channel 3142 is provided inside the resistance nozzle 314, and a plurality of transmission clamping teeth 3141 are also provided on the outer side of the resistance nozzle 314.

[0048] When the flushing pipe 311 does not start working, the resisting nozzle 314 is kept in the contracted state inside the flushing pipe 311 due to the action of the return spring 315. At this time, the transmission clamping teeth 3141 of the resisting nozzle 314 are not in contact with the transmission clamping groove 122 of the rotating mounting sleeve 121, and the water flow driving impeller 312 is also in a static state.

[0049] When the flushing liquid starts to flow through the flushing pipe 311, the flushing liquid first impacts the water flow driven impeller 312. Due to the impact force of the water flow, the water flow driven impeller 312 starts to rotate. The rotation of the water flow driven impeller 312 is transmitted to the resistance nozzle 314 through the limit connecting shaft 313, so that the resistance nozzle 314 also starts to rotate. At the same time, due to the continuous push of the flushing liquid, the resistance nozzle 314 overcomes the resistance of the return spring 315 and moves outward. In the process of the resistance nozzle 314 moving outward, the transmission clamping teeth 3141 on its side gradually approach and contact the transmission clamping groove 122 of the rotating installation sleeve 121. As the resistance nozzle 314 continues to rotate, the meshing action of the transmission clamping teeth 3141 and the transmission clamping groove 122 causes the rotating installation sleeve 121 to start to rotate. The rotation of the rotating installation sleeve 121 further drives the water quality filter element 2 to rotate. This rotation cleaning method helps to thoroughly remove impurities and dirt on the surface of the water quality filter element 2. The flow channel 3142 inside the resisting nozzle 314 serves as a delivery channel for the flushing liquid, ensuring that the flushing liquid can smoothly reach the water filter element 2 for effective flushing and cleaning. When the flushing process is completed, the flushing liquid in the flushing pipe 311 stops flowing. At this time, the reset spring 315 comes into play again, pushing the resisting nozzle 314 to retract into the flushing pipe 311, returning to its initial state, and waiting for the next flushing operation. The water flow drives the linkage of the impeller 312, the limit connecting shaft 313, the resisting nozzle 314, and the rotating mounting sleeve 121, thereby realizing automatic rotation cleaning of the water filter element 2.

[0050] See also Figure 4 and Fig. 9 As shown, the outer wall cleaning mechanism 32 includes a guide cover 321 installed at one end away from the transmission flushing mechanism 31, the guide cover 321 is connected to the sewage separation barrel 41, a cleaning sleeve 322 is installed inside the guide cover 321, the interior of the cleaning sleeve 322 is covered with cleaning brushes, and a connecting shaft 323 is also installed on the cleaning sleeve 322. The outer wall cleaning mechanism 32 also includes a linear pushing device 324 for pushing the connecting shaft 323 to move.

[0051] The guide cover 321 is installed at one end away from the transmission flushing mechanism 31, and serves as a guiding structure for the flow of the cleaning sleeve 322 and the cleaning liquid. At the same time, the guide cover 321 is connected to the sewage separation barrel 41 to ensure that the sewage generated during the cleaning process can be discharged smoothly. The cleaning sleeve 322 is built into the guide cover 321, and its structure is covered with cleaning brushes. These cleaning brushes are made of wear-resistant and corrosion-resistant materials, and can directly contact the outer wall of the water filter element 2 and effectively clean it. The connecting shaft 323 is installed on the cleaning sleeve 322 as the action point of the linear pushing device 324. By moving the connecting shaft 323, the entire cleaning sleeve 322 can be driven to move in a specific direction in the guide cover 321. The linear pushing device 324 serves as a power source to drive the connecting shaft 323 and the cleaning sleeve 322 to perform precise displacement. This device is a prior art, and the specific working principle is not repeated here.

[0052] Before the backwashing operation begins, the outer wall cleaning mechanism 32 is in a standby state. The cleaning sleeve 322 is located inside the guide cover 321 and does not contact the water filter element 2. When the transmission flushing mechanism 31 starts to work and drives the water filter element 2 to rotate and backwash, the linear push device 324 receives a start signal. The linear push device 324 pushes the connecting shaft 323 and the cleaning sleeve 322 to move to the outside of the water filter element 2. As the cleaning sleeve 322 gradually approaches, the cleaning brush begins to contact the outer wall of the water filter element 2. Driven by the transmission flushing mechanism 31, the water filter element 2 continues to rotate. At this time, the cleaning brush on the cleaning sleeve 322 generates friction with the outer wall of the water filter element 2, and combined with the reverse injection of the flushing liquid, they act together on the particulate impurities and dirt on the outer wall. The friction of the cleaning brush can deeply clean the stubborn dirt on the surface and gaps, while the high-pressure injection of the flushing liquid can wash away the impurities on the surface. By combining the mechanical friction of the cleaning brush with the high-pressure injection of the flushing liquid, the outer wall cleaning mechanism 32 can significantly improve the cleaning effect of the water filter element 2.

[0053] See also Figures 1 to 3 As shown, the recovery and separation device 4 includes a sewage separation barrel 41, and a sedimentation chamber 411 and a purification chamber 412 are provided inside the sewage separation barrel 41. The sedimentation chamber 411 is connected to the guide cover 321, and a separation filter layer 413 is installed between the sedimentation chamber 411 and the purification chamber 412. The output end of the delivery suction pump 42 is connected to the flushing pipe 311.

[0054] During the backwashing process, sewage containing impurities and dirt enters the sedimentation chamber 411 of the sewage separation barrel 41 through the guide cover 321. Large particles of impurities and suspended matter naturally settle to the bottom of the chamber under the action of gravity, achieving preliminary solid-liquid separation. The sewage that has undergone preliminary sedimentation passes through the separation filter layer 413. In this process, the separation filter layer 413 will block and intercept fine particles and suspended matter in the sewage, allowing only clean water molecules to pass through and enter the purification chamber 412. The purified clean water accumulates in the purification chamber 412, and is started by the delivery suction pump 42 to transport the clean water to the flushing pipe 311 for recycling. As the backwashing operation continues, the sewage continues to enter the sewage separation barrel 41 for treatment, and the purified clean water is continuously recycled and reused, forming a closed-loop sewage treatment and recycling system. The recycling and separation device 4 not only reduces the waste of water resources, but also reduces the processing cost and improves the operating efficiency of the water plant.

[0055] See also Figure 3 As shown, a sedimentation collecting bucket 414 is installed at the bottom of the sewage separation barrel 41, and the sedimentation collecting bucket 414 is connected to the sedimentation chamber 411. A sewage discharge inclined pipe 415 is provided at the bottom of the sedimentation collecting bucket 414, and a control valve 416 is installed on the sewage discharge inclined pipe 415. A delivery suction pump 42 is also installed on the recovery and separation device 4, and the input end of the delivery suction pump 42 is connected to the purification chamber 412.

[0056] During the backwashing process, sewage containing impurities and dirt enters the sedimentation chamber 411 of the sewage separation barrel 41 through the guide cover 321. Large particles of impurities and suspended matter naturally settle to the bottom of the chamber under the action of gravity and are collected by the sedimentation collection bucket 414. As the backwashing continues, the solid impurities in the sedimentation collection bucket 414 gradually increase. When a certain amount is reached, the sewage discharge inclined pipe 415 is opened through the control valve 416. When the sewage discharge inclined pipe 415 is opened, the precipitated dirt is affected by the water pressure, and the solid waste is squeezed out of the sewage discharge inclined pipe 415 and discharged. The sewage discharge inclined pipe 415 is inclined to reduce the discharge speed, facilitate the staff to control the discharge, and realize solid-liquid separation. After the sewage discharge is completed, the control valve 416 is closed to keep the system sealed. The design of the sedimentation collection bucket 414 and the control valve 416 ensures the timely discharge of solid waste and the stable operation of the system.

[0057] See also Fig.10As shown, the high-efficiency purification device also includes a filter element disassembly tool for quickly disassembling the water quality filter element 2, and the filter element disassembly tool includes a limiting fixing sleeve 51, the outer side of the limiting fixing sleeve 51 is provided with an anti-slip layer, and the edge position of the bottom of the limiting fixing sleeve 51 is provided with a plurality of limiting teeth 511, and the limiting teeth 511 match the transmission slot 122. A rotating disassembly shaft 52 is installed inside the limiting fixing sleeve 51, and a plurality of plug-in teeth 521 are provided at the bottom of the rotating disassembly shaft 52, and the plug-in teeth 521 match the limiting docking groove 23. A rotating pressure rod 53 is also installed on the rotating disassembly shaft 52.

[0058] The outer side of the limiting fixing sleeve 51 is provided with an anti-slip layer to enhance the gripping stability, and the bottom edge is designed with a plurality of limiting teeth 511, which are used to accurately dock with the transmission slot 122 on the rotating installation sleeve 121 to achieve accurate positioning and locking of the fixing sleeve. The rotating disassembly shaft 52 is installed inside the limiting fixing sleeve 51 and can be slidably connected relative to it. The bottom of the shaft is designed with a plug-in tooth 521, which matches the limiting docking groove 23 of the water filter element 2 to ensure stable connection and power transmission during the disassembly process. The rotating pressure rod 53 is installed on the rotating disassembly shaft 52 for easy operation by the staff, and the rotation of the disassembly shaft and the water filter element 2 is driven by rotating this rod.

[0059] Since the water filter element 2 will wear out after long-term use, it is necessary to replace the water filter element 2 regularly. When replacing the water filter element 2, first, stop the operation of the purification device and drain the residual water in the pipeline to ensure the safety of the replacement process. Subsequently, remove the transmission flushing mechanism 31 to expose and approach the water filter element 2 that needs to be replaced. The staff aligns the limit fixing sleeve 51 with the transmission card slot 122 on the rotating installation sleeve 121, and uses the matching relationship between the limit card teeth 511 and the card slot to fix the fixing sleeve in an appropriate position. At the same time, ensure that the plug-in card teeth 521 at the bottom of the rotating disassembly shaft 52 are tightly docked with the limit docking groove 23 of the water filter element 2 to establish a stable connection. After fixing the limit fixing sleeve 51, the staff applies a rotational force by rotating the pressure rod 53, and this force is transmitted to the water filter element 2 through the rotating disassembly shaft 52. Since the water filter element 2 and the rotating installation sleeve 121 are threadedly connected, when the water filter element 2 is subjected to a rotational force, it will gradually be screwed out of the installation sleeve to achieve disengagement. After the water filter element 2 is completely separated from the rotating installation sleeve 121, the old filter element can be easily removed and a new water filter element 2 can be installed. After the new filter element is installed, the above steps are reversed to ensure that the new filter element is firmly installed on the rotating installation sleeve 121, and then the operation of the transmission flushing mechanism 31 and the purification device is restored. The device realizes the rapid and convenient replacement of the water filter element 2 and improves the maintenance efficiency.

[0060] Specific working principle:

[0061] The circulation switching device 1 is fixedly mounted on the water flow pipe 6 as a portal for water flow to enter the purification system. A plurality of evenly distributed water quality filter cores 2 are installed inside the circulation switching device 1, which can effectively remove impurities such as suspended matter, particulate matter, some organic matter and microorganisms in the water. The circulation switching device 1 is divided into a filtering circulation area and a cleaning area. The filtering circulation area is directly connected to the water flow pipe 6 to ensure normal filtering operation; as the water flows through, impurities will gradually accumulate on the surface of the water quality filter core 2 to form a blocking layer, which affects the filtering efficiency and water flow rate. The cleaning area is used to receive the water quality filter core 2 to be cleaned and perform backwashing treatment. Through the built-in mechanical or electronic control system, the blockage of the water quality filter core 2 is monitored in real time, and the position of the water quality filter core 2 is automatically switched. When it is detected that the water quality filter core 2 is seriously blocked, the system will automatically switch the water quality filter core 2 to the cleaning area, and at the same time activate another set of new water quality filter cores 2 to enter the filtering circulation area to ensure uninterrupted water supply and filtration. The backwash cleaning device 3 is located in the cleaning area of ​​the circulation switching device 1, which is specifically used to perform backwashing treatment on the water quality filter core 2 switched thereto. The backwash cleaning device 3 uses high-pressure water flow to reversely spray the surface of the water filter element 2, vigorously flushes and removes the attached particulate impurities, and restores the filtering performance of the water filter element 2. The backwash process can be set to be timed or automatically triggered according to the degree of blockage of the water filter element 2. The recovery and separation device 4 is arranged below the backwash cleaning device 3, directly connected to the backwash system, and is responsible for receiving and processing the flushing liquid generated by backwashing. The recovery and separation device 4 separates the impurity particles in the flushing liquid by filtering and precipitation, and the purified flushing liquid can be recycled in the backwashing process to reduce the waste of water resources. The entire device is equipped with an advanced automatic control system to realize the intelligent management of the processes such as switching of the water filter element 2, backwashing and flushing liquid recovery. The integrated and automated design of the device realizes the efficient filtration, automatic cleaning and recycling of the flushing liquid of the water filter element 2, effectively improving the efficiency and quality of tap water treatment.

[0062] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A pipeline type tap water purification device for a water plant, characterized in that: It comprises a high-efficiency purification device installed on a water flow pipeline (6), the high-efficiency purification device comprising a flow switching device (1), a water quality filter element (2), a backwash cleaning device (3), and a recovery and separation device (4); The flow switching device (1) is fixedly mounted on the water flow pipeline (6); a filtering flow area and a cleaning area are provided inside the flow switching device (1); the filtering flow area is used to connect to the water flow pipeline (6); A plurality of water quality filter cores (2) are evenly distributed inside the flow switching device (1), and the water quality filter cores (2) are used to filter water quality; The backwash cleaning device (3) is installed in the cleaning area of ​​the circulation switching device (1), and the backwash cleaning device (3) is used to automatically clean the water filter element (2); The recovery and separation device (4) is arranged below the backwash cleaning device (3), the recovery and separation device (4) is connected to the backwash cleaning device (3), and the recovery and separation device (4) is used to recover the flushing liquid.

2. A pipeline-type tap water purification device for a waterworks according to claim 1, characterized in that: The flow switching device (1) comprises a mounting shell (11), the mounting shell (11) being provided with a plurality of flow mounting holes and backwashing holes (112), a water inlet joint (14) and a water outlet joint (15) being respectively mounted on both sides of the flow mounting holes, a flow detector (151) being mounted on the water outlet joint (15), a switching turntable (12) being mounted inside the mounting shell (11), a plurality of water quality filter elements (2) being mounted on the switching turntable (12) for limiting position, and a rotating driver (13) for driving the switching turntable (12) to rotate being also mounted outside the mounting shell (11).

3. A pipeline-type tap water purification device for a waterworks according to claim 2, characterized in that: The switching turntable (12) is provided with a plurality of position limiting installation holes, each of which is provided with a rotating installation sleeve (121), the edge of the rotating installation sleeve (121) is provided with a transmission slot (122), and the inner wall of the rotating installation sleeve (121) is provided with an internal thread (123).

4. A pipeline type tap water purification device for a waterworks according to claim 3, characterized in that: The outer wall of the water filter core (2) is provided with an external thread (22), the external thread (22) matches the internal thread (123) of the rotating installation sleeve (121), the outer side of the water filter core (2) is also provided with a water filter layer (21), and the bottom of the water filter core (2) is provided with a plurality of limit docking grooves (23).

5. A pipeline type tap water purification device for a waterworks according to claim 2, characterized in that: The backwash cleaning device (3) comprises a plurality of transmission flushing mechanisms (31) distributed on the backwash hole (112), and an outer wall cleaning mechanism (32) is installed at one end of the backwash hole (112) away from the transmission flushing mechanism (31).

6. A pipeline-type tap water purification device for a waterworks according to claim 5, characterized in that: The transmission flushing mechanism (31) comprises a flushing pipe (311) installed on the backwashing hole (112), a limit clamping plate (3111) is provided inside the flushing pipe (311), a water flow driven impeller (312) is installed inside the flushing pipe (311), a limit connecting shaft (313) is installed on the water flow driven impeller (312), a resistance nozzle (314) is installed on the limit connecting shaft (313), a return spring (315) is installed between the resistance nozzle (314) and the limit connecting shaft (313), a flow channel (3142) is provided inside the resistance nozzle (314), and a plurality of transmission clamping teeth (3141) are also provided on the outside of the resistance nozzle (314).

7. A pipeline-type tap water purification device for a waterworks according to claim 6, characterized in that: The outer wall cleaning mechanism (32) comprises a flow guide cover (321) installed at one end away from the transmission flushing mechanism (31), the flow guide cover (321) is connected to the sewage separation bucket (41), a cleaning sleeve (322) is installed inside the flow guide cover (321), the interior of the cleaning sleeve (322) is covered with cleaning brushes, and a connecting shaft (323) is also installed on the cleaning sleeve (322). The outer wall cleaning mechanism (32) also comprises a linear pushing device (324) for pushing the connecting shaft (323) to move.

8. A pipeline-type tap water purification device for a waterworks according to claim 7, characterized in that: The recovery and separation device (4) comprises a sewage separation barrel (41), wherein a sedimentation chamber (411) and a purification chamber (412) are provided inside the sewage separation barrel (41), the sedimentation chamber (411) is communicated with a flow guide cover (321), a separation filter layer (413) is installed between the sedimentation chamber (411) and the purification chamber (412), and the output end of the delivery suction pump (42) is communicated with the flushing pipeline (311).

9. A pipeline-type tap water purification device for a waterworks according to claim 2, characterized in that: A sedimentation collection bucket (414) is installed at the bottom of the sewage separation bucket (41), the sedimentation collection bucket (414) is communicated with the sedimentation chamber (411), a sewage discharge inclined pipe (415) is provided at the bottom of the sedimentation collection bucket (414), and a control valve (416) is installed on the sewage discharge inclined pipe (415). A delivery suction pump (42) is also installed on the recovery and separation device (4), and the input end of the delivery suction pump (42) is communicated with the purification chamber (412).

10. A pipeline type tap water purification device for a waterworks according to claim 4, characterized in that: The high-efficiency purification device also includes a filter element disassembly tool for quickly disassembling the water quality filter element (2), the filter element disassembly tool including a limit fixing sleeve (51), an outer side of the limit fixing sleeve (51) is provided with an anti-slip layer, a plurality of limit clamping teeth (511) are provided at the edge position of the bottom of the limit fixing sleeve (51), the limit clamping teeth (511) match the transmission clamping groove (122), a rotating disassembly shaft (52) is installed inside the limit fixing sleeve (51), a plurality of plug-in clamping teeth (521) are provided at the bottom of the rotating disassembly shaft (52), the plug-in clamping teeth (521) match the limit docking groove (23), and a rotating pressure rod (53) is also installed on the rotating disassembly shaft (52).

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