Ion exchange resin column cleaning device

Abstract

The invention relates to the technical field of ion exchange resin columns, and discloses an ion exchange resin column cleaning device which comprises a filter cylinder, the filter cylinder is installed in a water purifier, the filter cylinder is filled with ion exchange resin and provided with a rotatable partition plate assembly, and the rotatable partition plate assembly comprises a plurality of parallel hollow partition plates. The hollow partition plate is rotatably connected to the interior of the filter cartridge, an annular supporting seat is arranged at the bottom of the water purifier and used for fixing a filter cartridge base, the inner diameter of the water purifier barrel is designed to be larger than the outer diameter of the filter cartridge, an annular cleaning channel surrounding the filter cartridge is formed, and hydraulic drive type sealing plate assemblies are symmetrically arranged in the water purifier cavity. The sealing plate assembly and the outer wall of the filter cartridge form a dynamic sealing interface through a curved surface clamping structure; the filter cartridge is connected with the mixed cleaning mechanism, multi-mode regeneration cleaning of ion exchange resin is achieved, and the ion exchange resin column cleaning device effectively solves the problem that a traditional single cleaning mode is low in efficiency through a multi-mode collaborative cleaning mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of ion exchange resin columns, and particularly to a cleaning device for ion exchange resin columns. Background Art

[0002] Ion exchange resin columns are widely used in the fields of water treatment, chemical engineering, pharmaceuticals, etc. Their main function is to remove impurity ions in water through ion exchange. However, with the increase of service time, a large amount of pollutants, such as organic matter, colloid, metal oxide, etc., will be adsorbed on the resin surface, resulting in a decrease in exchange capacity or even failure, and the performance needs to be restored through regeneration and cleaning.

[0003] The existing cleaning methods mostly adopt single backwashing or chemical immersion regeneration. Backwashing flushes the resin layer in the reverse direction of the water flow, but the uneven distribution of the water flow is likely to form "channeling", making it difficult to thoroughly remove deep dirt; chemical regeneration relies on static immersion, and the permeability of the agent is poor, unable to fully contact the inside of the resin.

[0004] Or a mechanical stirring type cleaning device is adopted to disperse by high-speed stirring of resin particles, but the independent mechanical contact driving method has a large impact on the resin, and mechanical friction is likely to cause resin fragmentation, and the fragmented resin particles are difficult to separate, blocking the filter screen or polluting the system.

[0005] Therefore, we propose a cleaning device for ion exchange resin columns to solve the problems in the above background. Summary of the Invention

[0006] The purpose of the present invention is to provide a cleaning device for ion exchange resin columns to solve the problems in the above background art that conventional resin cleaning mostly adopts single backwashing or chemical immersion regeneration. Backwashing flushes the resin layer in the reverse direction of the water flow, making it difficult to thoroughly remove deep dirt; while chemical regeneration relies on static immersion, the permeability of the agent is poor, unable to fully contact the inside of the resin, or the independent mechanical contact driving method has a large impact on the resin, and the fragmented resin particles are difficult to separate.

[0007] To solve the above technical problems, the present invention provides the following technical solutions:

[0008] An ion exchange resin column cleaning device includes a filter cartridge, which is installed inside a water purifier. The filter cartridge is filled with ion exchange resin and is equipped with a rotatable partition assembly. The rotatable partition assembly includes a plurality of parallel hollow partitions, and the hollow partitions are rotatably connected inside the filter cartridge. The bottom of the water purifier is provided with an annular support seat for fixing the base of the filter cartridge. The inner diameter of the water purifier cylinder is designed to be larger than the outer diameter of the filter cartridge, forming an annular cleaning channel around the filter cartridge. Symmetrically arranged hydraulic drive type seal plate assemblies are provided in the cavity of the water purifier. The seal plate assemblies form a dynamic sealing interface with the outer wall of the filter cartridge through a curved surface engagement structure; the filter cartridge is connected to a hybrid cleaning mechanism to achieve multi-mode regeneration cleaning of ion exchange resin.

[0009] Preferably, the hydraulic drive type seal plate assembly includes two symmetrically arranged arc-shaped seal plates. The inner arc surface profile thereof is precisely matched with the outer cylindrical surface of the filter cartridge. Hydraulic telescopic rods are installed inside the water purifier. The hydraulic telescopic rods push the seal plates to slide horizontally inside the water purifier. An elastic sealing strip is embedded between the contact end faces of the two seal plates. The bottom surface of the seal plate maintains a sliding fit with the annular support seat, and its top surface forms a pressing seal with the detachable cover at the upper end of the water purifier.

[0010] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0011] The ion exchange resin column cleaning device of the present invention effectively solves the problem of low efficiency of traditional single cleaning methods through a multi-mode collaborative cleaning mechanism. The rotation drive mechanism cooperates with the rotatable hollow partitions to fully disperse the resin particles, avoiding the phenomenon of "channel flow" of water flow. The columnar porous spray head combined with the three-way switching valve realizes the precise switching and spraying of one of the acid, alkali, salt solutions and pure water, significantly improving the penetration of the medicament and the chemical regeneration effect; the high-frequency vibration of the ultrasonic crushing rod and the rolling movement of the resin act synergistically to peel off the deeply attached pollutants, and the regeneration efficiency is increased by more than 40%. And the magnetic coupling non-contact drive and hydraulic dynamic sealing technology are adopted. The arc-shaped seal plate is protected by double protection of curved surface engagement and elastic sealing strip, and still maintains high tightness when the filter cartridge rotates. The resin breakage rate is reduced by more than 50%, and resin leakage is effectively prevented; the intelligent control system monitors the regeneration status in real time through the resin saturation sensor and the turbidity detector, and the central controller dynamically adjusts the rotation speed, ultrasonic power and medicament flow rate to realize the adaptive optimization of cleaning parameters and reduce manual intervention; the split waste discharge pipe and the clean water pipe design are combined with multiple filter mesh plates to realize the physical isolation of the waste liquid and the clean water and the precise interception of the resin particles, ensuring the stable quality of the effluent water. Description of the Drawings

[0012] Figure 1 It is a schematic diagram of the overall external structure of the present invention;

[0013] Figure 2 It is a schematic diagram of the internal sectional structure of the present invention;

[0014] Figure 3 is a partially enlarged structural schematic diagram of Figure 2 the present invention;

[0015] Figure 4 is a schematic diagram of the filter cartridge structure of the present invention.

[0016] Wherein: 1, filter cartridge; 2, hollow partition board; 3, annular support seat; 4, water purifier; 6, arc-shaped sealing plate; 7, hydraulic telescopic rod; 8, elastic sealing strip; 14, brushless DC motor; 15, annular permanent magnet; 16, protective shell; 17, exchange bin; 18, rotating disk; 19, magnetic stirrer; 20, ultrasonic crushing rod; 21, nozzle; 23, medicine tank; 24, diaphragm pump; 25, liquid guide pipe; 26, water, electricity and gas integrated slip ring; 27, waste discharge pipe; 28, recovery pool; 29, purified water pipe; 30, filter screen plate; 31, three-way switching valve. Specific embodiments

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] Embodiment 1:

[0019] Please refer to Figures 1-4 , the present invention provides a technical solution:

[0020] An ion exchange resin column cleaning device includes a filter cartridge 1 installed inside a water purifier 4. The filter cartridge 1 is filled with ion exchange resin and is configured with a rotatable partition assembly. The rotatable partition assembly includes a plurality of parallel hollow partition boards 2 that are rotatably connected inside the filter cartridge 1. The bottom of the water purifier 4 is provided with an annular support seat 3 for fixing the base of the filter cartridge 1. The inner diameter of the water purifier 4 is designed to be larger than the outer diameter of the filter cartridge 1, forming an annular cleaning channel around the filter cartridge 1. The cavity of the water purifier 4 is symmetrically provided with a hydraulic drive type sealing plate assembly, and this sealing plate assembly forms a dynamic sealing interface with the outer wall of the filter cartridge 1 through a curved surface engagement structure; the filter cartridge 1 is connected to a hybrid cleaning mechanism to achieve multi-mode regeneration cleaning of ion exchange resin.

[0021] The implementation manner of the above solution is that the device installs a filter cartridge 1 inside the water purifier 4. An annular cleaning channel is formed between the outer wall of the filter cartridge 1 and the inner wall of the water purifier 4. The inside of the filter cartridge 1 is filled with ion exchange resin and is provided with a rotatable partition assembly. The rotatable partition assembly is used to stabilize the ion exchange resin and facilitate the passage of water for purification. The hydraulic-driven sealing plate assembly is dynamically sealed with the outer wall of the filter cartridge 1 through a curved surface engaging structure. When the ion exchange resin column purifies water, the sealing plate assembly fits on the surface of the filter cartridge 1. When flushing the ion exchange resin, the sealing plate assembly opens, and the flushing impurities and broken ion exchange resin flow out from the side of the filter cartridge 1. The hybrid cleaning mechanism realizes the multi-mode regeneration cleaning of the resin through the coordinated action of rotation, spraying, and ultrasonic waves. The annular support base 3 fixes the base of the filter cartridge 1 to ensure the stable operation of the filter cartridge 1.

[0022] Further, the hydraulic-driven sealing plate assembly includes two symmetrically arranged arc-shaped sealing plates 6. The inner arc surface profile thereof is precisely matched with the outer cylindrical surface of the filter cartridge 1. A hydraulic telescopic rod 7 is installed inside the water purifier 4. The hydraulic telescopic rod 7 pushes the sealing plate to slide horizontally inside the water purifier 4. An elastic sealing strip 8 is embedded between the contact end faces of the two sealing plates. The bottom surface of the sealing plate maintains a sliding fit with the annular support base 3, and its top surface forms a pressing seal with the detachable cover at the upper end of the water purifier 4.

[0023] The implementation manner of the above solution is that the hydraulic-driven sealing plate assembly pushes two symmetric arc-shaped sealing plates 6 to slide horizontally through the hydraulic telescopic rod 7. Its inner arc surface is precisely fitted with the outer cylindrical surface of the filter cartridge 1 to form a dynamic sealing interface. The elastic sealing strip 8 is embedded at the joint end face of the sealing plate to enhance the sealing performance. The bottom surface of the sealing plate has a sliding fit with the annular support base 3, and its top surface is pressed against the upper cover of the water purifier 4 to ensure that the cleaning cavity is completely closed. The hydraulic drive can flexibly adjust the position of the sealing plate to adapt to the rotation or cleaning requirements of the filter cartridge 1.

[0024] Further, the hybrid cleaning mechanism includes a rotation drive mechanism, a regeneration cleaning component, and an ultrasonic crushing component. The rotation drive mechanism is installed at the bottom of the water purifier 4 and is used to drive the hollow partition 2 and the ion exchange resin inside the filter cartridge 1 to rotate. The ultrasonic crushing component is installed inside the filter cartridge 1 and works in cooperation with the rotation drive mechanism. The rotation drive mechanism drives the ultrasonic crushing component to rotate. The regeneration cleaning component includes a spray head 21 and a chemical agent supply device. The spray head 21 is installed inside the water purifier 4, and the chemical agent supply device is arranged outside the water purifier 4.

[0025] The implementation of the above solution is as follows. In the hybrid cleaning mechanism, the rotary drive mechanism drives the hollow partition 2 and the resin inside the filter cartridge 1 to rotate, dispersing the resin particles. The regeneration cleaning component sprays the chemical agent through the nozzle 21, which can be an acid, alkali or salt solution, and the cleaning liquid is provided by an external chemical agent supply device. The ultrasonic crushing component generates high-frequency vibrations to cooperate with the rotary motion to break the dirt on the resin surface. The three work together to achieve the comprehensive cleaning effect of physical scouring, chemical regeneration and ultrasonic cavitation, improving the resin regeneration efficiency.

[0026] Further, the rotary drive mechanism includes a brushless DC motor 14 and a ring permanent magnet 15. A protective shell 16 is installed at the center of the bottom of the water purifier 4. The brushless DC motor 14 is fixedly installed inside the protective shell 16. The ring permanent magnet 15 is connected to the rotating shaft of the brushless DC motor 14. The brushless DC motor 14 drives the ring permanent magnet 15 to rotate. Below the ring support seat 3 at the bottom of the water purifier 4, there is an exchange chamber 17. A rotating disk 18 is installed at the center of the bottom of the exchange chamber 17. Inside the rotating and supporting disk, multiple groups of magnetic stirrers 19 distributed radially are embedded. The ring permanent magnet 15 drives the rotating disk 18 to rotate synchronously through magnetic coupling with the magnetic stirrers 19.

[0027] The implementation of the above solution is as follows. The rotary drive mechanism drives the ring permanent magnet 15 to rotate through the brushless DC motor 14, and the magnetic coupling drives the rotating disk 18 with magnetic stirrers 19 embedded in the exchange chamber 17 to rotate synchronously. The rotating disk 18 drives the hollow partition 2 inside the filter cartridge 1 through the central axis, driving the resin to tumble, which is beneficial to the flow of the cleaning liquid. The protective shell 16 isolates the motor from the cleaning environment, and the magnetic coupling drive avoids mechanical contact, ensuring the sealing performance and corrosion resistance.

[0028] Further, the ultrasonic crushing component includes an ultrasonic crushing rod 20. A protective shell 16 is arranged outside the ultrasonic crushing rod 20. The ultrasonic crushing rod 20 is installed vertically in the middle of the rotating disk 18, and the top end coaxially penetrates through the central area of the hollow partition 2 and extends to the upper space of the filter cartridge 1.

[0029] Further, the nozzle 21 is a columnar porous nozzle 21. Multiple groups of columnar porous nozzles 21 are arranged in a circumferential array on the rotating disk 18. A water, electricity and gas integrated slip ring 26 is installed on the rotating disk 18. The water, electricity and gas integrated slip ring 26 is provided with a liquid channel communicated with the nozzle 21 and a rotating contact electrically connected to the ultrasonic crushing rod. The water, electricity and gas integrated slip ring 26 is used for supplying liquid to the rotating columnar porous nozzle 21 and rotatingly conducting the circuit of the ultrasonic crushing rod 20.

[0030] The implementation of the above solution is as follows: The columnar porous nozzles 21 are circumferentially arrayed on the rotating disk 18, rotate with the rotating disk 18, and evenly spray the cleaning liquid into the filter cartridge 1. The water, electricity and gas integrated slip ring 26 provides continuous reagent supply for the nozzles 21 through the rotating contacts, and transmits electricity to the ultrasonic breaking rod 20. The liquid channel of the water, electricity and gas integrated slip ring 26 is connected to the liquid guide pipe 25, and the circuit conducts the ultrasonic power supply to realize the stable liquid supply and power supply of the rotating components.

[0031] Furthermore, the reagent supply device includes a reagent tank 23. A diaphragm pump 24 is installed at the bottom of the reagent tank 23. The diaphragm pump 24 is used to extract the reagent from the reagent tank 23 and transport it to the columnar porous nozzles 21. A liquid guide pipe 25 is installed between the diaphragm pump 24 and the water, electricity and gas circuit slip ring. The water, electricity and gas circuit slip ring transports the reagent into the columnar porous nozzles 21 through the internal liquid channel.

[0032] The implementation of the above solution is as follows: The reagent tank 23 extracts the reagent through the diaphragm pump 24, transports it through the liquid guide pipe 25 to the water, electricity and gas integrated slip ring 26, and then the water, electricity and gas integrated slip ring 26 distributes it to the rotating columnar porous nozzles 21. The diaphragm pump 24 provides a constant flow rate to ensure that the reagent evenly covers the resin; the liquid guide pipe 25 is made of flexible material to adapt to the movement of the rotating disk 18 and avoid pipeline entanglement or leakage.

[0033] Furthermore, a waste discharge pipe 27 is connected to the bottom of the water purifier 4. The other end of the waste discharge pipe 27 is connected to a recovery pool 28. A water purification pipe 29 is installed on one side of the water purifier 4 away from the waste discharge pipe 27. A detachable multi-layer filter screen plate 30 is embedded at the inlet of the water purification pipe 29, and the aperture of the filter screen plate 30 is smaller than the particle size of the ion exchange resin.

[0034] The implementation of the above solution is as follows: The cleaning waste liquid is discharged into the recovery pool 28 through the waste discharge pipe 27 at the bottom of the water purifier 4, and the purified water is output through the water purification pipe 29. The filter screen plate 30 is installed at the inlet of the water purification pipe 29, and its aperture is smaller than the resin particle size to prevent resin loss. The waste discharge and purified water paths are separated, and combined with the interception of the filter screen plate 30, efficient separation of waste liquid recovery and purified water output is achieved.

[0035] Furthermore, a three-way switching valve 31 is installed at the liquid inlet end of the diaphragm pump 24. The three-way switching valve 31 adopts an electric three-way ball valve structure. Its liquid inlet port is flexibly connected to the diaphragm pump 24 through a quick connector, and the two liquid outlet ports are respectively connected to the medicine storage tank and the pure water tank through hard pipelines.

[0036] The implementation of the above solution is as follows: The three-way switching valve 31 switches the liquid inlet source of the diaphragm pump 24 through electric control, and is used to select the medicine storage tank for the regeneration reagent or the pure water tank for flushing. The quick connector realizes the flexible connection between the diaphragm pump 24 and the valve body, and the hard pipeline ensures the stability of reagent transportation. The three-way switching valve 31 automatically switches the cleaning stage, reducing manual intervention.

[0037] In another embodiment, the ion exchange resin column cleaning device further includes: a resin saturation sensor array disposed in the filter cartridge 1; a flow sensor and a turbidity detector installed inside the waste discharge pipe 27; a pressure sensor embedded in the joint surface of the arc-shaped sealing plate 6; and a central controller, which is used to receive the signals of the above sensors and perform linkage control to adjust the hydraulic drive, ultrasonic power, and chemical agent flow parameters; in addition, a touch display screen is provided outside the device, and the touch display screen is used to display the cleaning progress curve and the operating status of the system in real time.

[0038] In the above solution, the resin saturation sensor array monitors the resin state in the filter cartridge 1 in real time; the flow sensor and the turbidity detector analyze the cleanliness of the waste liquid in the waste discharge pipe 27; the pressure sensor detects the sealing pressure of the arc-shaped sealing plate 6. The central controller receives the sensor signals and dynamically adjusts the pressure of the hydraulic telescopic rod 7, the ultrasonic power, and the chemical agent flow rate to optimize the cleaning parameters. The touch display screen displays the cleaning progress curve and the system status in real time, realizing human-machine interaction and intelligent control.

[0039] The working principle of the ion exchange resin column cleaning device is as follows: In the water purification mode, the two arc-shaped sealing plates 6 of the hydraulic drive type sealing plate assembly are pushed by the hydraulic telescopic rod 7, so that their inner arc surfaces are closely attached to the outer wall of the filter cartridge 1 to form a dynamic sealing interface. At this time, water flows through the ion exchange resin filled in the filter cartridge 1 for purification. The rotatable hollow partition plate 2 drives the resin to be slightly disturbed through the rotation drive mechanism to optimize the water flow distribution. The purified water is output through the water purification pipe 29 at the bottom. When the resin needs to be regenerated, the hydraulic telescopic rod 7 contracts to make the sealing plate slide horizontally along the annular support seat 3 to open, forming an annular cleaning channel; the hybrid cleaning mechanism is started: the rotation drive mechanism drives the rotating disk 18 and the hollow partition plate 2 in the filter cartridge 1 to rotate synchronously through magnetic coupling, so that the resin particles are evenly dispersed; the diaphragm pump 24 of the regeneration cleaning component switches the chemical agent source through the three-way switching valve 31. The chemical agent source is one of acid, alkali, salt solution, and pure water. It transports the cleaning liquid to the rotating columnar porous nozzle 21 through the liquid guide pipe 25 and the water, electricity, and air slip ring to chemically regenerate and physically scour the resin; at the same time, the ultrasonic crushing rod 20 generates a high-frequency cavitation effect during rotation, cooperating with the mechanical tumbling of the resin to peel off the surface dirt. The waste liquid generated by the cleaning carries impurities and flows into the recovery pool 28 from the bottom waste discharge pipe 27 through the annular cleaning channel, and the multi-layer filter screen plate 30 at the inlet of the water purification pipe 29 can intercept the resin particles that may escape. The whole process is controlled by the central controller in a linkage manner, monitored in real time by the resin saturation sensor, the flow sensor, and the turbidity detector, automatically adjusting the hydraulic pressure, ultrasonic power, and chemical agent flow rate, and the touch display screen synchronously displays the cleaning curve and the device status, finally realizing the efficient regeneration of the ion exchange resin and the intelligent operation of the system.

[0040] Although specific embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these specific embodiments without departing from the principles and spirit, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ion exchange resin column cleaning device, comprising a filter cartridge (1), characterized in that: The filter cartridge (1) is installed inside the water purifier (4). The inside of the filter cartridge (1) is filled with ion exchange resin and is equipped with a rotatable partition assembly. The rotatable partition assembly includes a plurality of parallel hollow partitions (2). The hollow partitions (2) are rotatably connected inside the filter cartridge (1). The bottom of the water purifier (4) is provided with an annular support base (3) for fixing the base of the filter cartridge (1). The inner diameter of the cylinder body of the water purifier (4) is designed to be larger than the outer diameter of the filter cartridge (1), forming an annular cleaning channel around the filter cartridge (1). A hydraulically driven seal plate assembly is symmetrically arranged in the cavity of the water purifier (4). The seal plate assembly forms a dynamic seal interface with the outer wall of the filter cartridge (1) through a curved surface engagement structure. The filter cartridge (1) is connected to a hybrid cleaning mechanism to realize multi-mode regeneration cleaning of the ion exchange resin.

2. The ion exchange resin column cleaning device according to claim 1, characterized in that: The hydraulically driven seal plate assembly includes two symmetrically arranged arc-shaped seal plates (6). The inner arc surface contour thereof is precisely matched with the outer cylindrical surface of the filter cartridge (1). A hydraulic telescopic rod (7) is installed inside the water purifier (4). The hydraulic telescopic rod (7) pushes the seal plate to slide horizontally inside the water purifier (4). An elastic sealing strip (8) is embedded between the contact end faces of the two seal plates. The bottom surface of the seal plate maintains a sliding fit with the annular support base (3), and its top surface forms a pressing seal with the detachable cover body at the upper end of the water purifier (4).

3. The ion exchange resin column cleaning device according to claim 2, wherein: The hybrid cleaning mechanism includes a rotation driving mechanism, a regeneration cleaning component, and an ultrasonic crushing component. The rotation driving mechanism is installed at the bottom of the water purifier (4) and is used to drive the hollow partitions (2) and the ion exchange resin inside the filter cartridge (1) to rotate. The ultrasonic crushing component is installed inside the filter cartridge (1) and cooperates with the rotation driving mechanism. The rotation driving mechanism drives the ultrasonic crushing component to rotate. The regeneration cleaning component includes a spray head (21) and a chemical agent supply device. The spray head (21) is installed inside the water purifier (4), and the chemical agent supply device is arranged outside the water purifier (4).

4. The ion exchange resin column cleaning device according to claim 3, characterized in that: The rotation driving mechanism includes a brushless DC motor (14) and an annular permanent magnet (15). A protective shell (16) is installed at the center position of the bottom of the water purifier (4). The brushless DC motor (14) is fixedly installed inside the protective shell (16). The annular permanent magnet (15) is connected to the rotating shaft of the brushless DC motor (14). The brushless DC motor (14) drives the annular permanent magnet (15) to rotate. A switching chamber (17) is arranged below the annular support base (3) at the bottom of the water purifier (4). A rotating disk (18) is installed at the center bottom of the switching chamber (17). A plurality of groups of radially distributed magnetic stirrers (19) are embedded inside the rotating bearing disk. The annular permanent magnet (15) drives the rotating disk (18) to rotate synchronously through magnetic coupling with the magnetic stirrers (19).

5. An ion exchange resin column cleaning device according to claim 4, characterized in that: The ultrasonic crushing component includes an ultrasonic crushing rod (20). A protective shell (16) is arranged outside the ultrasonic crushing rod (20). The ultrasonic crushing rod (20) is installed vertically in the middle of the rotating disk (18), and the top end thereof coaxially penetrates through the central area of the hollow partition (2) and extends to the upper space of the filter cartridge (1).

6. The ion exchange resin column cleaning device according to claim 3, characterized in that: The nozzle (21) is a columnar porous nozzle (21). Multiple groups of columnar porous nozzles (21) are provided and are distributed in a circumferential array on the rotating disk (18). An integrated water, electricity and gas slip ring (26) is installed on the rotating disk (18). The integrated water, electricity and gas slip ring (26) is provided with a liquid channel communicating with the nozzle (21) and a rotating contact electrically connected to the ultrasonic breaking rod. The integrated water, electricity and gas slip ring (26) is used for rotationally supplying liquid to the columnar porous nozzle (21) and rotationally conducting the circuit of the ultrasonic breaking rod (20).

7. An ion exchange resin column cleaning device according to claim 3, characterized in that: The chemical agent supply device includes a chemical agent tank (23). A diaphragm pump (24) is installed at the bottom of the chemical agent tank (23). The diaphragm pump (24) is used to extract the chemical agent from the chemical agent tank (23) and convey it to the columnar porous nozzle (21). A liquid guide pipe (25) is installed between the diaphragm pump (24) and the integrated water and electricity circuit slip ring. The integrated water and electricity circuit slip ring conveys the chemical agent into the columnar porous nozzle (21) through the internal liquid channel.

8. An ion exchange resin column cleaning device according to claim 7, characterized in that: A waste discharge pipe (27) is connected to the bottom of the water purifier (4). The other end of the waste discharge pipe (27) is connected to a recovery pool (28). A clean water pipe (29) is installed on one side of the water purifier (4) away from the waste discharge pipe (27). A detachable multi-layer filter screen plate (30) is embedded at the entrance of the clean water pipe (29). The aperture of the filter screen plate (30) is smaller than the particle size of the ion exchange resin.

9. An ion exchange resin column cleaning device according to claim 8, characterized in that: A three-way switching valve (31) is installed at the liquid inlet end of the diaphragm pump (24). The three-way switching valve (31) adopts an electric three-way ball valve structure. Its liquid inlet port is flexibly connected to the diaphragm pump (24) through a quick connector. The two liquid outlet ports are respectively connected to a chemical agent storage tank and a pure water tank through rigid pipelines.

10. The ion exchange resin column cleaning device according to any one of claims 1-9, characterized in that, Comprising: A resin saturation sensor array provided in the filter cartridge (1); A flow sensor and a turbidity detector installed inside the waste discharge pipe (27); a pressure sensor embedded in the joint surface of the arc-shaped sealing plate (6); and a central controller, which is used to receive the signals of the above sensors and perform linkage control.

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