A high-efficiency energy-saving water filtering system

Abstract

The application relates to the technical field of water treatment, in particular to a high-efficiency energy-saving water filtering system, which comprises a water filtering system shell body, a plurality of switching cleaning parts are arranged on the shell body, a plurality of multistage filtering areas are arranged between adjacent switching cleaning parts, and the plurality of multistage filtering areas are connected in communication through multistage filtering connecting pipes; a filtering switching mechanism is connected with the water filtering system shell body and is separately and detachably connected with the switching cleaning parts and the multistage filtering areas, the filtering switching mechanism comprises a rotary driving assembly and a plurality of filtering main body assemblies, each filtering main body assembly comprises a use filtering piece corresponding to the multistage filtering area and a replacement filtering piece corresponding to the switching cleaning part; and the water filtering system further comprises a detection control system connected with the filtering switching mechanism in signal connection, the rotary driving assembly can be controlled to rotate according to the water filtering state, and the workstations of the two types of filtering pieces can be rapidly converted; the water filtering system can rapidly complete filtering assembly rotation and maintenance, greatly shortens the shutdown time, improves the operation continuity and the filtering efficiency, and reduces the operation and maintenance energy consumption.

Description

Technical Field

[0001] This invention relates to the field of water treatment technology, specifically a high-efficiency and energy-saving water filtration system. Background Technology

[0002] High-efficiency and energy-saving water filtration systems are core purification equipment in the water treatment field. They are widely used in various scenarios such as industrial circulating water treatment, wastewater treatment and reuse, and production water purification. They mainly remove pollutants such as suspended solids, silt, and organic impurities from water through a multi-stage filtration structure to achieve water purification and meet standards. As the water treatment industry continues to increase its requirements for treatment efficiency, operational stability, and energy saving, multi-stage series filtration structures have become the mainstream structural form of high-efficiency and energy-saving water filtration systems due to their stable gradient purification effect and wide applicability.

[0003] Existing multi-stage series high-efficiency and energy-saving water filtration systems are prone to clogging during long-term operation. The filter elements continuously intercept and accumulate impurities in the water, leading to a decrease in filtration flux and an increase in pressure loss. Frequent shutdowns and disassembly of the water filtration system's outer shell and internal flow channels are required to clean or replace the filter elements. This results in long downtime maintenance, high operational complexity, poor system continuity, low overall filtration efficiency, and high maintenance and energy consumption. Therefore, there is an urgent need to develop a high-efficiency and energy-saving water filtration system to overcome the shortcomings in current practical applications. Summary of the Invention

[0004] The purpose of this invention is to provide a high-efficiency and energy-saving water filtration system to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A high-efficiency and energy-saving water filtration system includes a water filtration system housing, on which multiple switching cleaning sections are provided, and multiple filtration zones are provided between adjacent switching cleaning sections.

[0007] The multiple multi-stage filtration zones are connected by multi-stage filtration connecting pipes;

[0008] A filter switching mechanism is connected to the outer shell of the water filtration system and is detachably connected to the switching cleaning section and the multi-stage filtration area, respectively.

[0009] The filter switching mechanism includes a rotary drive assembly and multiple filter body assemblies. The rotary drive assembly is located in the middle of the outer shell of the water filtration system, and the multiple filter body assemblies are circumferentially and evenly arranged on the rotary drive assembly.

[0010] Each filter unit includes a working filter and a replacement filter. The working filter corresponds to the multi-stage filtration area, and the replacement filter corresponds to the switching cleaning section.

[0011] The system includes a detection and control system connected to the filter switching mechanism. The detection and control system is used to control the rotary drive assembly to rotate multiple filter main components according to the water filtration status, so as to realize the rapid switching between the use of filter elements and the replacement of filter elements.

[0012] As a further aspect of the present invention: each of the multi-stage filtration zones is provided with an inlet and an outlet;

[0013] The inlet and outlet are connected to each other via the filter body assembly at one end near the inside of the water filtration system housing, and the other ends of the inlet and outlet are connected to one end of each of the two multi-stage filter connecting pipes.

[0014] As a further embodiment of the present invention: an inlet pipe is fixedly connected to one of the inlets, and an outlet pipe is fixedly connected to one of the outlets;

[0015] The water to be treated passes through the inlet pipe, the inlet, the multi-stage filter connecting pipe, the outlet, and the outlet pipe in sequence to form a complete multi-stage filtration path.

[0016] As a further aspect of the present invention: the structure of the filter element and the replacement filter element are the same, both integrated on the switching filter chamber, and the switching filter chamber is fixedly connected to the rotary drive assembly;

[0017] The switching filter chamber consists of two independent filter chambers, each of which is equipped with a detachable multi-stage filter.

[0018] As a further aspect of the present invention: each of the filter elements includes a multi-functional connector and a pneumatic regulating air tube;

[0019] The number of the multi-functional connectors is two, and both multi-functional connectors are connected to the same filter chamber. The multi-functional connectors are provided with an expandable and sealable air bladder and internal threads.

[0020] One end of the pneumatic regulating air tube is connected to the airbag on the multifunctional connector, and is used to control the expansion and contraction of the airbag.

[0021] As a further aspect of the present invention, it also includes: a sealing embedding groove, wherein there are multiple sealing embedding grooves, each of which is opened in the multi-stage filtration area and is respectively connected to the ends of the inlet and outlet.

[0022] When the airbag inflates, the airbag abuts against the sealing groove to achieve sealing and limiting;

[0023] The system also includes a rinsing window, which is located on the side of the housing of the water filtration system and corresponds to the station for replacing the filter element. This allows for rinsing of the filter chamber and the used filter element at the same time as replacing the detachable multi-stage filter when switching from the station for using the filter element to the station for replacing the filter element.

[0024] As a further aspect of the present invention: the rotation drive assembly includes:

[0025] A forward and reverse rotating motor, which is fixedly mounted on the housing of the water filtration system;

[0026] And a rotary adjustment shaft, which is rotatably mounted on the housing of the water filtration system and fixedly connected to the output end of the forward and reverse motor; wherein, a rotating bracket is provided on the rotary adjustment shaft, and the rotating bracket is fixedly connected to multiple switching filter chambers;

[0027] The forward and reverse motor is used to drive the switching filter chamber to move forward and reverse in the middle of the water filtration system housing, and drives multiple switching filter chambers to rotate synchronously via a rotating bracket, so as to realize the switching between the use of filter elements and the replacement of filter elements.

[0028] As a further aspect of the present invention, it also includes: a collection intermediate chamber, the collection intermediate chamber being located at the top of the outer shell of the water filtration system;

[0029] The water inlet pipe is connected to the collection intermediate chamber via a pumping device, and is used to transport the water in the collection intermediate chamber to the filter main assembly for filtration.

[0030] As a further aspect of the present invention, it also includes a conical top, which is fixedly connected to the top of the outer shell of the water filtration system;

[0031] At least one set of pre-filters is provided on the conical top;

[0032] The pre-filter includes a filter screen, a flow-guiding arc surface, and a discharge slot.

[0033] The filter screen, the guide arc surface, and the discharge slot are arranged sequentially from the inside to the outside on the top of the cone. After being filtered by the filter screen, the water flows into the filter switching mechanism.

[0034] As a further aspect of the present invention, it also includes: a vibrating pendulum, one end of which is connected to the rotary drive assembly, and a roller is rotatably mounted on the other end of the vibrating pendulum;

[0035] A cleaning brush plate is fixedly mounted on the vibrating swing arm, and the brushes on the cleaning brush plate abut against the guide arc surface and the filter screen.

[0036] And an irregularly shaped vibration surface, which is located on the edge of the cone top and close to the discharge slot;

[0037] The upper surface of the irregularly shaped vibration surface adopts an arc-shaped structure with low ends and high middle or a wave-shaped structure, and the roller is rolled on the irregularly shaped vibration surface;

[0038] When switching between the stations of using and replacing the filter element, the rotary drive assembly rotates the vibrating swing arm and drives the roller to roll on the irregularly shaped vibrating surface to provide intermittent strong and weak vibrations to the cleaning brush plate, thereby achieving the cleaning effect on the guide arc surface and the filter screen.

[0039] Compared with the prior art, the beneficial effects of the present invention are:

[0040] With the monitoring and control of the detection and control system, the rotating drive component of the filter switching mechanism drives multiple filter main components to rotate synchronously, which can quickly complete the work position switch between using and replacing filter components. The filter components can be replaced without disassembling the outer shell and internal flow channel of the water filtration system, which greatly shortens the downtime for maintenance, improves the continuity of system operation and overall filtration efficiency, and reduces operation and maintenance energy consumption and costs.

[0041] Adjacent multi-stage filtration zones form a series multi-stage filtration path through multi-stage filtration connecting pipes. Combined with the modular structure of the detachable multi-stage filter, the number of filtration stages and filter media configuration can be flexibly adjusted according to the influent water quality and effluent water requirements to adapt to the water treatment needs of different scenarios. The external pipeline facilitates inspection and maintenance, ensuring the long-term operational stability of the filtration flow path.

[0042] The multi-functional connector-based airbag expansion structure, combined with the sealing embedding groove, achieves a flow path docking seal, ensuring the sealing reliability of the filter flow path, reducing the wear of the sealing surface during station switching, and extending the service life of the sealing element; at the same time, with the flushing window set in the corresponding replacement filter station, a complete offline cleaning of the filter chamber and the used filter can be completed at the maintenance station, ensuring thorough maintenance.

[0043] The pre-filter with a conical top can pre-intercept large particles of impurities in the water, significantly reducing the filtration load of subsequent multi-stage filtration units and extending the service life of the detachable multi-stage filter. At the same time, the rotational power of the rotary drive component during the station switching process synchronously drives the vibrating swing arm and cleaning brush to move. In conjunction with the irregularly shaped vibrating surface, it generates intermittent strong and weak vibrations, realizing the self-cleaning of the filter screen and the guide arc surface. There is no need to set up an additional independent drive component, simplifying the system structure and reducing additional energy consumption.

[0044] The intermediate collection chamber can buffer and stabilize the pressure of the incoming water, preventing fluctuations in the incoming water flow from impacting the subsequent filtration structure. Furthermore, during the switching of work stations, it can simultaneously drive the turbulence-dispersing blades to rotate, mixing the impurities deposited in the chamber, facilitating centralized sewage discharge, further reducing the processing burden of subsequent filtration paths, and improving the overall filtration efficiency and energy-saving effect of the system. Attached Figure Description

[0045] Figure 1 This is a three-dimensional structural diagram of the outer shell of the water filtration system in an embodiment of the present invention.

[0046] Figure 2 This is a schematic diagram showing the distribution of the multi-stage filter connection pipes in an embodiment of the present invention.

[0047] Figure 3 This is a cross-sectional view of the intermediate collection compartment in an embodiment of the present invention.

[0048] Figure 4 This is a schematic diagram showing the distribution of the inlet and outlet in an embodiment of the present invention.

[0049] Figure 5 This is a top view of the cleaning unit in an embodiment of the present invention.

[0050] Figure 6 This is a schematic diagram showing the distribution structure of the detachable multi-stage filter in an embodiment of the present invention.

[0051] Figure 7 This is a three-dimensional structural diagram of the rotating bracket in an embodiment of the present invention.

[0052] Figure 8 This is a three-dimensional structural diagram of the sealing embedding groove in an embodiment of the present invention.

[0053] Figure 9 This is an enlarged schematic diagram of the conical top structure in an embodiment of the present invention.

[0054] Figure 10 This is a schematic diagram of the installation position of the irregular vibration surface in an embodiment of the present invention.

[0055] Figure 11 This is a three-dimensional structural diagram of the vibrating pendulum in an embodiment of the present invention.

[0056] Figure 12 This is a schematic diagram of the distribution location of the switching filter chambers in an embodiment of the present invention.

[0057] In the diagram: 1-Water filtration system outer casing, 2-Multi-stage filter connecting pipe, 3-Conical top, 4-Rotating part, 5-Guiding arc surface, 6-Drainage slot, 7-Rotation adjustment shaft, 8-Switching filter chamber, 9-Forward and reverse motor, 10-Inlet pipe, 11-Multi-functional connector, 12-Outlet pipe, 13-Pneumatic adjustment air pipe, 14-Collection intermediate chamber, 15-Switching cleaning part, 16-Inlet, 17-Outlet, 18-Detachable multi-stage filter, 19-Rotating bracket, 20-Sealed embedding groove, 21-Filter screen, 22-Vibrating swing arm, 23-Cleaning brush plate, 24-Roller, 25-Irregularly shaped vibrating surface, 26-Rinsing window. Detailed Implementation

[0058] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0059] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0060] Please see Figures 1-12 The present invention provides a high-efficiency and energy-saving water filtration system, including a water filtration system housing 1, wherein a plurality of switching cleaning sections 15 are provided on the water filtration system housing 1, and a multi-stage filtration area is provided between adjacent switching cleaning sections 15.

[0061] The multiple multi-stage filtration zones are connected by a multi-stage filtration connecting pipe 2;

[0062] A filter switching mechanism is connected to the outer shell 1 of the water filtration system and is detachably connected to the switching cleaning section 15 and the multi-stage filtration area, respectively.

[0063] The filter switching mechanism includes a rotary drive assembly and multiple filter body assemblies. The rotary drive assembly is located in the middle of the water filtration system housing 1, and the multiple filter body assemblies are circumferentially and evenly arranged on the rotary drive assembly.

[0064] Each filter unit includes a working filter and a replacement filter. The working filter is configured to correspond to the multi-stage filtration area, and the replacement filter is configured to correspond to the switching cleaning section 15.

[0065] The system includes a detection and control system connected to the filter switching mechanism. The detection and control system is used to control the rotary drive assembly to rotate multiple filter main components according to the water filtration status, so as to realize the rapid switching between the use of filter elements and the replacement of filter elements.

[0066] In this embodiment, the outer shell 1 of the water filtration system serves only as a support carrier for water flow and internal functional components. The internal flow channel structure is simple and regular, and impurities are not easily attached and accumulated during water flow. It does not require frequent disassembly and cleaning during daily operation. The filter elements and supporting auxiliary components that are prone to clogging and dirt accumulation are all integrated on the filter main body component of the filter switching mechanism.

[0067] Under normal filtration conditions, each filter element in the filter switching mechanism is connected to the flow path of the corresponding multi-stage filtration zone to perform the corresponding filtration operation. Replacement filter elements are located in the standby maintenance position corresponding to the switching cleaning section 15. Multiple multi-stage filtration zones are connected in a stable series flow path through the multi-stage filtration connecting pipe 2. After the filtered water reaches the outer shell 1 of the water filtration system, it flows through multiple series-connected multi-stage filtration zones to complete the step-by-step purification. The detection and control system can collect filtration pressure loss data in real time through differential pressure sensors installed at the inlet and outlet of each multi-stage filtration zone. When the pressure loss of a filter element reaches the preset clogging threshold and the filtration flux drops to the set value, the detection and control system outputs a control command. After a short system pause, the rotary drive component is activated. The rotary drive component drives multiple circumferentially evenly distributed filter elements to rotate synchronously by a set angle, causing the replacement filter element, which was originally in the standby position, to rotate to the multi-stage filtration zone position. The originally clogged filter element is synchronously rotated to the maintenance position corresponding to the switching cleaning section 15. After the position conversion is completed, the system can quickly restart and resume filtration operations. The aforementioned structure, through a rotating workstation switching method, transfers the easily clogged filter components to an independent maintenance station. This allows for filter component replacement without disassembling the equipment casing and internal flow channels, significantly reducing downtime for maintenance and increasing the automation level of the switching operation. The filters moved to the maintenance station can undergo thorough offline maintenance. Not only can the detachable multi-stage filter 18 be replaced, but the filter chamber, sealing joints, and other accessories can also be thoroughly cleaned. After maintenance, these components are ready as spares to ensure filtration performance and sealing reliability for subsequent switching operations. Combined with the simple structure and non-fouling water filtration system casing 1, this significantly reduces the workload and frequency of daily maintenance, improving overall system operating efficiency and energy saving.

[0068] In one embodiment of the present invention, please refer to Figures 1-8 Each of the multi-stage filtration zones is provided with an inlet 16 and an outlet 17;

[0069] The inlet 16 and outlet 17 are connected to each other via the filter body assembly at one end near the inside of the water filtration system housing 1, and the other ends of the inlet 16 and outlet 17 are connected to one end of the two multi-stage filter connecting pipes 2 respectively.

[0070] One of the water inlets 16 is fixedly connected to a water inlet pipe 10, and one of the water outlets 17 is fixedly connected to a water outlet pipe 12.

[0071] The water to be treated passes through the inlet pipe 10, the inlet 16, the multi-stage filter connecting pipe 2, the outlet 17, and the outlet pipe 12 in sequence to form a complete multi-stage filtration path.

[0072] In this embodiment, each multi-stage filtration zone is provided with an independent inlet 16 and outlet 17. The inner ends of the inlet 16 and outlet 17 are respectively connected to the inlet and outlet ends of the corresponding filter main body component, so that all the water entering the multi-stage filtration zone flows through the filter main body component to complete single-stage filtration before being discharged from the outlet 17. The outlet 17 of each multi-stage filtration zone is sealed and connected to the inlet 16 of the next multi-stage filtration zone through a multi-stage filtration connecting pipe 2, forming a cascading filtration flow path. The water to be treated first flows into the inlet pipe 10 and is then transported through the inlet pipe 10. The water is sent to the inlet 16 of the first-stage multi-stage filtration area. After being filtered by the main filter component of the first stage, it flows out from the outlet 17 of that stage. Then, it is sequentially transported to the subsequent multi-stage filtration areas through the multi-stage filtration connecting pipe 2 to complete the step-by-step filtration and purification. Finally, the clean water that meets the water quality requirements flows from the outlet 17 of the last-stage multi-stage filtration area into the outlet pipe 12 and is discharged from the system to complete the entire filtration process. Alternatively, two or more sets of water filtration system housings 1 can be set vertically. In this case, the water in the outlet pipe 12 flows directly downwards into the next set of water filtration system housings 1 for treatment. This will not be elaborated further here.

[0073] The aforementioned modular inlet and outlet water connection structure, combined with the external multi-stage filter connection pipe 2, not only ensures the purification effect of multi-stage gradient filtration, but also allows for flexible adjustment of the number of filtration stages and corresponding filter media configuration according to the inlet water quality and outlet water requirements, adapting to the water treatment needs of different scenarios. At the same time, all pipeline connections are located outside the water filtration system housing 1, facilitating pipeline inspection and maintenance, avoiding sealing hazards caused by complex internal pipeline layout, and ensuring the long-term operational stability of the multi-stage filtration flow path.

[0074] In one embodiment of the present invention, please refer to Figures 1-12 The structure of the filter element and the replacement filter element are the same, and they are both integrated on the switching filter chamber 8. The switching filter chamber 8 is fixedly connected to the rotary drive assembly.

[0075] The switching filter chamber 8 consists of two independent filter chambers, each of which is equipped with a detachable multi-stage filter 18.

[0076] Each of the filter elements includes a multi-functional connector 11 and a pneumatic regulating tube 13. The pneumatic regulating tube 13 can be connected to an external inflation and suction device to perform inflation and suction operations. Meanwhile, the detachable multi-stage filter 18 and the filter chamber can also be sealed and disassembled without wear by means of airbag expansion and contraction. This will not be described in detail here.

[0077] The number of the multi-functional connectors 11 is two, and both multi-functional connectors 11 are connected to the same filter chamber. The multi-functional connectors 11 are provided with an expandable and sealable air bladder and internal threads.

[0078] One end of the pneumatic regulating air tube 13 is connected to the airbag on the multifunctional connector 11, and is used to control the expansion and contraction of the airbag.

[0079] During the operation of the filter element, the two multi-functional connectors 11 on the replacement filter element can be connected to the inlet 16 and the outlet 17 respectively via threaded connectors and hoses. A valve is installed on the hose. During normal filtration, the hose is not connected. If the detachable multi-stage filter 18 corresponding to the filter element becomes clogged during water treatment, water can be flowed to the replacement filter element through the bypass hose for emergency treatment. After the emergency treatment is completed, the switching operation can be performed to ensure the stability of the equipment operation.

[0080] In one embodiment of the present invention, it further includes: a sealing embedding groove 20, wherein there are multiple sealing embedding grooves 20, and the multiple sealing embedding grooves 20 are all opened in the multi-stage filtration area and are respectively connected to the ends of the inlet 16 and the outlet 17.

[0081] When the airbag inflates, the airbag abuts against the sealing groove 20 to achieve sealing and limiting;

[0082] The system also includes a rinsing window 26, which is located on the side of the housing 1 of the water filtration system and is positioned corresponding to the replacement filter element station. This allows for rinsing of the filter chamber and the used filter element after it has been used, while the detachable multi-stage filter 18 is being replaced, when the filter element is switched from the used filter element station to the replacement filter element station.

[0083] The rotation drive assembly includes:

[0084] A forward and reverse motor 9 is fixedly installed on the outer casing 1 of the water filtration system.

[0085] And a rotary adjustment shaft 7, which is rotatably mounted on the housing 1 of the water filtration system and fixedly connected to the output end of the forward and reverse motor 9; wherein, a rotating bracket 19 is provided on the rotary adjustment shaft 7, and the rotating bracket 19 is fixedly connected to a plurality of the switching filter chambers 8;

[0086] The forward and reverse motor 9 is used to drive the switching filter chamber 8 to move forward and reverse in the middle of the water filtration system housing 1, and drives multiple switching filter chambers 8 to rotate synchronously via the rotating bracket 19, so as to realize the switching between the use of filter elements and the replacement of filter elements.

[0087] In this embodiment, the filter element and the replacement filter element adopt the same modular structure and are integrated and installed in two independent filter chambers of the switching filter chamber 8. The detachable multi-stage filter 18 inserted in each filter chamber can adopt a three-stage combination structure of coarse filter screen, activated carbon adsorption layer and precision ultrafiltration filter element arranged in sequence along the water flow direction. It can also be replaced with modular filter cartridges such as quartz sand filter layer and manganese sand filter layer according to the water quality to achieve multi-stage gradient filtration in a single chamber. No specific limitation is made here.

[0088] When the filter element at the filtration station is connected to the flow path, compressed gas is introduced through the pneumatic regulating air pipe 13 to inflate the sealing annular air bladder at the end of the multi-functional connector 11. The inflated air bladder tightly abuts against the inner wall of the sealing embedded groove 20 corresponding to the multi-stage filtration area, realizing a leak-free connection between the filter chamber of the switching filter chamber 8 and the inlet 16 and outlet 17, ensuring that all water flows through the detachable multi-stage filter 18 to complete filtration, and avoiding bypass leakage that could affect the filtration effect. When the system detects that the filter element has become clogged and needs to be switched, it briefly pauses. The pneumatic regulating air pipe 13 depressurizes, causing the sealing airbag to contract and releasing the sealing limit between the filter chamber and the sealing embedded groove 20. Then, the forward and reverse motor 9 starts to output torque, driving the rotary adjusting shaft 7 to rotate at a set angle. The rotating bracket 19 fixed on the rotary adjusting shaft 7 drives the multiple circumferentially distributed switching filter chambers 8 to rotate synchronously, causing the replacement filter element, which was originally in the clean position, to rotate to the filter position. After the multi-functional connector 11 corresponding to the replacement filter element is inflated and sealed, the system can be restarted to resume normal filtration operations, significantly reducing the downtime for maintenance.

[0089] After the original clogged filter element rotates with the switching filter chamber 8 to the corresponding maintenance station in the switching cleaning section 15, the staff can connect to the backwashing pipeline through the flushing window 26 on the side of the water filtration system housing 1. This not only allows for backwashing and impurity removal of the detachable multi-stage filter 18, but also allows for comprehensive flushing and cleaning of the filter chamber inner wall, multi-functional connectors 11, and other accessories. Alternatively, the detachable multi-stage filter 18 can be directly removed from the switching cleaning section 15 for replacement or deep maintenance, ensuring thorough offline maintenance. Meanwhile, during the operation of the filter element, the two multi-functional connectors 11 for replacing the filter element can be temporarily connected to the inlet 16 and outlet 17 respectively through bypass hoses with valves, serving as an emergency parallel filtration bypass. This bypass can temporarily take over the filtration operation when the main filter element suddenly becomes clogged, reducing the impact of downtime under sudden operating conditions.

[0090] The aforementioned sealing structure not only ensures the sealing reliability of the filtration flow path but also significantly reduces the wear on the sealing surface during station switching, extending the service life of the sealing elements. The modular, detachable multi-stage filter 18 can flexibly adapt to different filter media combinations, covering a variety of water treatment scenarios. Combined with the offline maintenance structure of the flushing window 26, the filter elements and accessories can be thoroughly cleaned and replaced without disassembling the main body of the equipment, greatly reducing maintenance difficulty. The forward and reverse driven rotary switching structure has high positioning accuracy and fast switching speed, which can further reduce downtime, improve the continuity of system operation and overall filtration efficiency, and reduce overall operation and maintenance energy consumption.

[0091] In one embodiment of the present invention, please refer to Figures 1-12 It also includes: a collection intermediate chamber 14, which is located on top of the water filtration system housing 1;

[0092] The water inlet pipe 10 is connected to the collection intermediate chamber 14 via a pumping device, and is used to transport the water in the collection intermediate chamber 14 to the filter main assembly for filtration.

[0093] The top end of the rotary adjustment shaft 7 can penetrate through the intermediate collection chamber 14 and be rotatably connected to the intermediate collection chamber 14. The rotary adjustment shaft 7 can be equipped with turbulence blades. The turbulence blades are placed inside the intermediate collection chamber 14. When switching the use of filter elements and replacing filter elements (at which time the equipment is in a stopped state), the rotary adjustment shaft 7 drives the turbulence blades to rotate synchronously, so that the impurities settled in the intermediate collection chamber 14 are mixed with water under the action of turbulence.

[0094] Please see Figures 1-11 It also includes: a conical top 3, which is fixedly connected to the top of the water filtration system housing 1;

[0095] At least one set of pre-filters is provided on the conical top 3;

[0096] The pre-filter includes a filter screen 21, a flow guiding arc surface 5, and a discharge slot 6.

[0097] The filter screen 21, the guide arc surface 5, and the discharge slot 6 are arranged sequentially from the inside to the outside on the conical top 3. Water flows into the filter switching mechanism after being filtered by the filter screen 21.

[0098] It also includes: a vibrating swing arm 22, one end of which is connected to the rotary drive assembly, and a roller 24 is rotatably mounted on the other end of the vibrating swing arm 22;

[0099] Cleaning brush plate 23, the cleaning brush plate 23 is fixedly installed on the vibrating swing arm 22, and the brush on the cleaning brush plate 23 abuts against the guide arc surface 5 and the filter screen 21;

[0100] And an irregularly shaped vibration surface 25, which is located on the edge of the conical top 3 and is set close to the discharge slot 6;

[0101] The upper surface of the irregular vibration surface 25 adopts an arc-shaped structure or a wave-shaped structure that is low at both ends and high in the middle, and the roller 24 is rolled on the irregular vibration surface 25.

[0102] When switching between the stations of using and replacing the filter element, the rotary drive assembly rotates the vibrating swing arm 22 and drives the roller 24 to roll on the irregularly shaped vibration surface 25 to provide intermittent strong and weak vibrations to the cleaning brush plate 23, thereby achieving the cleaning effect on the guide arc surface 5 and the filter screen 21.

[0103] In this embodiment, during the water flow process, the water first passes through the pre-filter on the conical top 3. The water first passes through the filter screen 21 to intercept large particles of silt, suspended solids and other impurities, completing the pre-filtration treatment. The filtered water passes through the filter screen 21 and flows into the collection intermediate chamber 14. The impurities intercepted by the filter screen 21 slide along the inclined guide arc surface 5 to the outside of the conical top 3 and are finally discharged from the system from the discharge port 6. The filtered water enters the collection intermediate chamber 14 for buffering and pressure stabilization to avoid the impact of the inlet water flow fluctuation on the subsequent filtration structure. Then, the water in the collection intermediate chamber 14 is stably transported to the inlet pipe 10 by the pumping equipment.

[0104] When the system performs filter element switching operations, the equipment is in a short-term pause state. The rotary adjustment shaft 7 rotates synchronously. On the one hand, the rotary adjustment shaft 7 drives the turbulence blades placed in the intermediate collection chamber 14 to rotate synchronously, so that the impurities deposited at the bottom of the intermediate collection chamber 14 are fully mixed with the water to form high-concentration sewage, which can be directly discharged from the system through the bypass sewage pipe, avoiding the deposited impurities from entering the subsequent filter path with the water flow and increasing the filtration burden on the fine filter element. On the other hand, the rotary adjustment shaft 7 drives the vibrating swing arm 22 to rotate synchronously in the circumferential direction (the rotary adjustment shaft 7 is rotatably connected to the conical top 3 through the rotating part 4), so that the roller 24 at the end of the vibrating swing arm 22 rolls along the irregular vibration surface 25 at the edge of the conical top 3. The roller 24 can be made of rubber. Because the irregularly shaped vibration surface 25 has an arc or wave-shaped convex structure with low ends and high middle, the tightness of the roller 24 in contact with the irregularly shaped vibration surface 25 changes during the rolling process. This causes the vibration swing arm 22 to produce intermittent strong and weak vibrations in the up and down direction, which in turn drives the cleaning brush plate 23 fixed on the vibration swing arm 22 to vibrate synchronously. The brush of the cleaning brush plate 23 is always in contact with the surface of the filter screen 21 and the guide arc surface 5. Through the vibration combined with the circumferential brushing action, the impurities embedded in the mesh of the filter screen 21 and attached to the guide arc surface 5 are swept off and pushed to the outer discharge slot 6 for discharge, thus realizing the self-cleaning of the pre-filter structure.

[0105] The aforementioned conical-top pre-filter structure enables pre-filtration of water, intercepting most large particles of impurities, significantly reducing the filtration load on subsequent multi-stage filtration units, extending the service life of fine filter elements, and reducing pumping energy consumption during filtration. The rotational power generated during filter element switching synchronously drives the self-cleaning structure of the pre-filter, eliminating the need for additional independent drive components, simplifying the overall system structure and reducing additional energy consumption. Simultaneously, intermittent vibration combined with brushing effectively removes impurities embedded in the filter pores during the switching of the main filter components, preventing increased pressure loss due to pre-filter blockage and ensuring stable pre-filtration flux. Furthermore, the turbulence-removing structure in the intermediate collection chamber 14 periodically discharges deposited impurities, preventing accumulation within the chamber and further reducing the processing load on subsequent filtration paths, thus improving the overall system's filtration efficiency and energy efficiency.

[0106] It should be noted that, in this invention, unless otherwise explicitly specified and limited, the terms "sliding," "rotating," "fixed," and "equipped" should be interpreted broadly. For example, they can refer to welded connections, bolted connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0107] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-efficiency and energy-saving water filtration system, characterized in that, The system includes a water filtration system housing, on which multiple switching cleaning sections are provided, and a multi-stage filtration zone is provided between adjacent switching cleaning sections. The multiple multi-stage filtration zones are connected by multi-stage filtration connecting pipes; A filter switching mechanism is connected to the outer shell of the water filtration system and is detachably connected to the switching cleaning section and the multi-stage filtration area, respectively. The filter switching mechanism includes a rotary drive assembly and multiple filter body assemblies. The rotary drive assembly is located in the middle of the outer shell of the water filtration system, and the multiple filter body assemblies are circumferentially and evenly arranged on the rotary drive assembly. Each filter unit includes a working filter and a replacement filter. The working filter corresponds to the multi-stage filtration area, and the replacement filter corresponds to the switching cleaning section. The system includes a detection and control system connected to the filter switching mechanism. The detection and control system is used to control the rotary drive assembly to rotate multiple filter main components according to the water filtration status, so as to realize the rapid switching between the use of filter elements and the replacement of filter elements.

2. The high-efficiency energy-saving water filtration system according to claim 1, characterized in that, Each of the multi-stage filtration zones is equipped with an inlet and an outlet; The inlet and outlet are connected to each other via the filter body assembly at one end near the inside of the water filtration system housing, and the other ends of the inlet and outlet are connected to one end of each of the two multi-stage filter connecting pipes.

3. The high-efficiency energy-saving water filtration system according to claim 2, characterized in that, A water inlet pipe is fixedly connected to one of the water inlets, and a water outlet pipe is fixedly connected to one of the water outlets; The water to be treated passes through the inlet pipe, the inlet, the multi-stage filter connecting pipe, the outlet, and the outlet pipe in sequence to form a complete multi-stage filtration path.

4. The high-efficiency energy-saving water filtration system according to claim 1, characterized in that, The used filter and the replacement filter have the same structure and are both integrated on the switching filter chamber, which is fixedly connected to the rotary drive assembly. The switching filter chamber consists of two independent filter chambers, each of which is equipped with a detachable multi-stage filter.

5. The high-efficiency energy-saving water filtration system according to claim 4, characterized in that, Each of the aforementioned filter elements includes a multi-functional connector and a pneumatically adjustable air tube; The number of the multi-functional connectors is two, and both multi-functional connectors are connected to the same filter chamber. The multi-functional connectors are provided with an expandable and sealable air bladder and internal threads. One end of the pneumatic regulating air tube is connected to the airbag on the multifunctional connector, and is used to control the expansion and contraction of the airbag.

6. The high-efficiency energy-saving water filtration system according to claim 5, characterized in that, Also includes: A plurality of sealing embedding grooves are provided, each of which is located in the multi-stage filtration area and is connected to the ends of the inlet and outlet respectively. When the airbag inflates, the airbag abuts against the sealing groove to achieve sealing and limiting; The system also includes a rinsing window, which is located on the side of the housing of the water filtration system and corresponds to the station for replacing the filter element. This allows for rinsing of the filter chamber and the used filter element at the same time as replacing the detachable multi-stage filter when switching from the station for using the filter element to the station for replacing the filter element.

7. The high-efficiency energy-saving water filtration system according to any one of claims 4-6, characterized in that, The rotation drive assembly includes: A forward and reverse rotating motor, which is fixedly mounted on the housing of the water filtration system; And a rotary adjustment shaft, which is rotatably mounted on the housing of the water filtration system and fixedly connected to the output end of the forward and reverse motor; wherein, a rotating bracket is provided on the rotary adjustment shaft, and the rotating bracket is fixedly connected to multiple switching filter chambers; The forward and reverse motor is used to drive the switching filter chamber to move forward and reverse in the middle of the water filtration system housing, and drives multiple switching filter chambers to rotate synchronously via a rotating bracket, so as to realize the switching between the use of filter elements and the replacement of filter elements.

8. The high-efficiency energy-saving water filtration system according to claim 3, characterized in that, Also includes: A collection intermediate chamber is located at the top of the outer casing of the water filtration system; The water inlet pipe is connected to the collection intermediate chamber via a pumping device, and is used to transport the water in the collection intermediate chamber to the filter main assembly for filtration.

9. The high-efficiency energy-saving water filtration system according to claim 7, characterized in that, Also includes: A conical top, which is fixedly connected to the top of the water filtration system housing; At least one set of pre-filters is provided on the conical top; The pre-filter includes a filter screen, a flow-guiding arc surface, and a discharge slot. The filter screen, the guide arc surface, and the discharge slot are arranged sequentially from the inside to the outside on the top of the cone. After being filtered by the filter screen, the water flows into the filter switching mechanism.

10. The high-efficiency energy-saving water filtration system according to claim 9, characterized in that, Also includes: A vibrating pendulum, one end of which is connected to the rotary drive assembly, and a roller is rotatably mounted on the other end of the vibrating pendulum; A cleaning brush plate is fixedly mounted on the vibrating swing arm, and the brushes on the cleaning brush plate abut against the guide arc surface and the filter screen. And an irregularly shaped vibration surface, which is located on the edge of the cone top and close to the discharge slot; The upper surface of the irregularly shaped vibration surface adopts an arc-shaped structure with low ends and high middle or a wave-shaped structure, and the roller is rolled on the irregularly shaped vibration surface; When switching between the stations of using and replacing the filter element, the rotary drive assembly rotates the vibrating swing arm and drives the roller to roll on the irregularly shaped vibrating surface to provide intermittent strong and weak vibrations to the cleaning brush plate, thereby achieving the cleaning effect on the guide arc surface and the filter screen.

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