Ion exchanger for soft water treatment

Abstract

The utility model provides a kind of ion exchanger of soft water treatment, including exchange cylinder, the inside of exchange cylinder is sequentially provided with cloth water pipe, second turntable assembly and three first turntable assemblies from top to bottom, and the central of second turntable assembly and three first turntable assemblies is vertically penetrated with positioning pipe. Compared with prior art, the utility model is through the use of unique turntable assembly design and scraping flat, so that ion exchange resin is evenly distributed on screen, and fully contact and mix with water during equipment operation, ensure that ion exchange reaction is evenly carried out in the whole resin layer, when ion exchange resin needs to be replaced or replenished, hydraulic telescopic rod works, so that baffle opens, old ion exchange resin is discharged from discharge port through resin outlet, new resin enters second mounting sleeve through feed inlet from resin feeding port, realize the replacement and replenishment of resin, in the process of new resin filling, scraping flat plays a role, ensure that resin is evenly distributed.

Description

Technical Field

[0001] This utility model is an ion exchanger for soft water treatment, belonging to the field of ion exchangers. Background Technology

[0002] In the water softening process, ion exchangers are key equipment for achieving water softening. They effectively reduce water hardness by exchanging ions such as calcium and magnesium in the water with ion exchange resins. Traditional water softening ion exchangers mainly consist of a tank, inlet and outlet devices, a resin bed, and backwashing and regeneration devices. The tank houses the resin and provides the exchange space; the inlet and outlet devices are responsible for introducing raw water and discharging treated water; the resin bed softens the water through ion exchange; the backwashing device removes impurities; and the regeneration device restores the resin activity.

[0003] Traditional ion exchangers mostly adopt a vertical structure. When replacing resin, operators need to enter the exchange tank or operate through a narrow opening at the top. This vertical replacement method has extremely limited operating space, making it difficult for operators to operate flexibly. The replacement process consumes a lot of time and manpower, resulting in low efficiency. In addition, due to the inconvenience of operation, it is difficult to uniformly fill the resin, resulting in uneven distribution of resin in the exchange tank. When water flows through the resin layer, the difference in resin packing density will cause flow deviation, causing some areas of resin to be overused and prematurely fail, while other areas of resin are not fully utilized. This greatly reduces the ion exchange efficiency and resin utilization rate. Therefore, it is necessary to design an ion exchanger for soft water treatment. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an ion exchanger for soft water treatment to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an ion exchanger for soft water treatment, comprising an exchange cylinder. Inside the exchange cylinder, from top to bottom, are arranged a water distribution pipe, a second rotating disc assembly, and three first rotating disc assemblies. A positioning pipe vertically penetrates the center of each of the second rotating disc assembly and the three first rotating disc assemblies. A matching first mounting sleeve is installed on the inner wall of the exchange cylinder near the second rotating disc assembly, and the first mounting sleeve has a slag discharge port. A matching second mounting sleeve is also provided on the inner wall of the exchange cylinder near each of the three first rotating disc assemblies. A resin outlet and a resin feed port are respectively provided on both sides of the exchange cylinder near the first rotating disc assemblies. A discharge port and a feed port corresponding to the resin outlet and resin feed port are respectively provided on both sides of the second mounting sleeve. A drive assembly is provided at one end of the exchange cylinder.

[0006] Furthermore, a three-way valve is installed at the center of the top of the exchange cylinder, and the output end of the three-way valve is connected to the water distribution pipe. The top of the three-way valve is provided with a water inlet, and the end of the three-way valve near the drive assembly is connected to a return water pipe.

[0007] Furthermore, a clean water outlet is provided at the bottom of the exchange cylinder at the end away from the drive assembly, and a control panel is provided on the exchange cylinder above the clean water outlet. A corresponding slag outlet is provided on one side of the exchange cylinder near the slag discharge port.

[0008] Furthermore, the water distribution pipe consists of a vertically arranged main pipe and multiple horizontally distributed branch pipes, with the top of the main pipe connected to the output end of a three-way valve, and multiple micro spiral nozzles evenly spaced at the bottom of the branch pipes.

[0009] Furthermore, the outer walls of both the first mounting sleeve and the second mounting sleeve are in contact with the inner wall of the exchange cylinder, and both the first mounting sleeve and the second mounting sleeve are fixedly connected to the exchange cylinder. The bottom of the inner sidewalls of both the first mounting sleeve and the second mounting sleeve are provided with rotating grooves.

[0010] Furthermore, both the first and second turntable assemblies include a sleeve, a mounting ring, and a toothed ring. The mounting ring is rotatably connected to the rotating groove. A sleeve is provided at the center of the mounting ring, and a toothed ring is provided at the bottom of the mounting ring. A screen is provided between the mounting ring and the sleeve of the first turntable assembly, and an ultrafiltration membrane is provided between the mounting ring and the sleeve of the second turntable assembly. The top of the screen is filled with ion exchange resin, and the particle size of the ion exchange resin on the three screens gradually decreases from top to bottom. The sieve aperture is smaller than the particle size of the ion exchange resin.

[0011] Furthermore, the drive assembly includes a drive motor, a mounting base, a main shaft, and a transmission shaft. The mounting base is welded to the exchange cylinder. The drive motor is mounted on the top of the mounting base, and the transmission shaft is vertically mounted inside the mounting base near the exchange cylinder. The main shaft is vertically mounted inside the mounting base away from the exchange cylinder, and the output end of the drive motor is connected to the top of the main shaft. A transmission gear meshing with the transmission gear is provided on the transmission shaft near the gear ring, and a main gear meshing with the transmission gear is provided on the main shaft near the transmission gear.

[0012] Furthermore, a booster pump is provided at the bottom of the mounting base, and the output end of the booster pump is connected to the return water pipe. A mounting plate is provided in the mounting base above the booster pump, and the bottom of the main shaft and the transmission shaft are rotatably connected to the mounting plate. Through holes are provided on the side wall of the exchange cylinder near the transmission gear.

[0013] Furthermore, a U-shaped mounting bracket is connected between the top of one side of the positioning tube and the exchange cylinder, and a silicone scraper is provided at the bottom of the mounting bracket. The silicone scraper is in contact with the upper surface of the ultrafiltration membrane. Three scraping plates are provided at equal intervals between the positioning tube and the exchange cylinder below the mounting bracket, and the scraping plates extend between the second mounting sleeve and the sleeve. The bottom of the scraping plate is higher than the screen.

[0014] Furthermore, a baffle is hinged to the inner side of the second mounting sleeve near the discharge port, and the baffle is in contact with the inner wall of the second mounting sleeve. A hydraulic telescopic rod is hinged to the top of the baffle at the end away from the hinge axis, and the other end of the hydraulic telescopic rod is hinged to the positioning tube.

[0015] The beneficial effects of this utility model are: Through the unique design of the turntable assembly and the use of the scraper plate, the ion exchange resin is evenly distributed on the screen and fully contacts and mixes with water during equipment operation. This ensures that the ion exchange reaction proceeds uniformly throughout the resin layer, improving ion exchange efficiency and effectiveness, and extending the service life of the ion exchange resin. When the ion exchange resin needs to be replaced or replenished, the hydraulic telescopic rod is controlled via the control panel to open the baffle on the inner side of the second mounting sleeve near the discharge port. The old ion exchange resin is discharged from the discharge port through the resin outlet, and the new resin enters the second mounting sleeve from the resin feeding port through the inlet, realizing the replacement and replenishment of the resin. During the filling of new resin, the scraper plate plays a role in ensuring that the resin is evenly distributed.

[0016] Water flows downwards under gravity, first contacting the ultrafiltration membrane in the second rotating disk assembly located above. The ultrafiltration membrane can trap large molecules, colloids, bacteria, and other impurities in the water, achieving preliminary filtration of the raw water, reducing turbidity and the content of some pollutants, and improving the effect of subsequent ion exchange and the service life of the ion exchange resin. After being filtered by the ultrafiltration membrane, the water continues to flow downwards, contacting the ion exchange resin filled on the screens in the three first rotating disk assemblies. Since the particle size of the ion exchange resin on the three screens gradually decreases from top to bottom, the larger particle size resin in the upper layer can play a role in preliminary filtration and disperse the water flow, making the water flow more evenly penetrate downwards, while reducing the resistance of the water flow into the resin layer. The smaller particle size resin in the lower layer ensures the exchange effect while keeping the water flow resistance within an acceptable range. This design allows the water flow to come into more full contact with the ion exchange resin, achieving the exchange and adsorption of hardness ions such as calcium and magnesium in the water, thereby reducing the hardness of the water and achieving the purpose of softening the water. Attached Figure Description

[0017] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1This is a first-view structural schematic diagram of an ion exchanger for water softening according to the present invention. Figure 2 This is a second-view structural schematic diagram of an ion exchanger for water softening according to the present invention; Figure 3 This is a partial cross-sectional view of the ion exchanger for water softening according to the present invention. Figure 4 This is a schematic diagram of the internal structure of the ion exchanger cylinder of an ion exchanger for soft water treatment according to this utility model; Figure 5 This is a schematic diagram of the positioning tube and baffle of an ion exchanger for soft water treatment according to the present invention; Figure 6 This is a schematic diagram of the second mounting sleeve and the first rotating disk assembly of an ion exchanger for soft water treatment according to the present invention; Figure 7 This is a schematic diagram of the second rotating disk assembly of an ion exchanger for soft water treatment according to the present invention; In the diagram: 1. Exchange cylinder; 101. Through hole; 2. Clean water outlet; 3. Control panel; 4. Resin outlet; 5. Resin feed port; 6. Return water pipe; 7. Three-way valve; 8. Water inlet; 9. Drive assembly; 10. Drive motor; 11. Mounting base; 1101. Mounting plate; 12. Water distribution pipe; 1201. Miniature spiral nozzle; 1202. Branch pipe; 1203. Main pipe; 13. First mounting sleeve; 1301. Slag discharge port; 14. Second mounting sleeve; 1401. Discharge port; 402. Feed inlet; 1403. Rotary trough; 15. First turntable assembly; 1501. Sleeve; 1502. Screen; 1503. Mounting ring; 1504. Gear ring; 16. Main shaft; 17. Drive shaft; 18. Main gear; 19. Drive gear; 20. Positioning tube; 21. Second turntable assembly; 2101. Ultrafiltration membrane; 22. Booster pump; 23. Mounting bracket; 2301. Silicone scraper; 24. Hydraulic telescopic rod; 25. Baffle; 26. Scraper plate; 27. Slag outlet. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] Please see Figures 1 to 7This utility model provides a technical solution: an ion exchanger for soft water treatment, comprising an exchange cylinder 1. Inside the exchange cylinder 1, from top to bottom, are arranged a water distribution pipe 12, a second rotating disk assembly 21, and three first rotating disk assemblies 15. A positioning pipe 20 vertically penetrates the center of each of the second rotating disk assembly 21 and the three first rotating disk assemblies 15. A matching first mounting sleeve 13 is installed on the inner wall of the exchange cylinder 1 near the second rotating disk assembly 21, and the first mounting sleeve 13 has a slag discharge port 1301. A matching second mounting sleeve 1 is also provided on the inner wall of the exchange cylinder 1 near each of the three first rotating disk assemblies 15. 4. Resin outlet 4 and resin feed port 5 are respectively provided on both sides of the exchange cylinder 1 near the position of the first turntable assembly 15. The two sides of the second mounting sleeve 14 are respectively provided with discharge port 1401 and feed port 1402 corresponding to resin outlet 4 and resin feed port 5. A drive assembly 9 is provided at one end of the exchange cylinder 1. The first mounting sleeve 13 matches the second turntable assembly 21. The slag discharge port 1301 on it can discharge the impurities intercepted by the ultrafiltration membrane 2101 in time. The second mounting sleeve 14 cooperates with the first turntable assembly 15. The discharge port 1401 and feed port 1402 on the second mounting sleeve 14 are designed to provide convenience for resin replacement. For example, a three-way valve 7 is installed at the center of the top of the exchange cylinder 1, and the output end of the three-way valve 7 is connected to the water distribution pipe 12. The top of the three-way valve 7 is provided with a water inlet 8, and the end of the three-way valve 7 near the drive assembly 9 is connected to a return water pipe 6. The return water pipe 6 is connected to the three-way valve 7 so that the water that leaks into the mounting base 11 can return to the system to participate in the circulation treatment.

[0020] For example, a clean water outlet 2 is provided at the bottom of the end of the exchange cylinder 1 away from the drive assembly 9, and a control panel 3 is provided on the exchange cylinder 1 above the clean water outlet 2. A corresponding slag outlet 27 is provided on one side of the exchange cylinder 1 near the slag outlet 1301. The slag outlet 27 can periodically discharge the impurities trapped by the ultrafiltration membrane 2101.

[0021] Please see Figure 4 The water distribution pipe 12 consists of a vertically arranged main pipe 1203 and multiple horizontally distributed branch pipes 1202. The top of the main pipe 1203 is connected to the output end of the three-way valve 7. Multiple micro spiral nozzles 1201 are evenly spaced at the bottom of the branch pipes 1202. After the raw water enters the main pipe 1203, it will be evenly distributed to each branch pipe 1202. The micro spiral nozzles 1201 at the bottom of the branch pipes 1202 further refine the water flow and cover the space inside the exchange cylinder 1 in a spiral spray. Compared with ordinary water outlets, the water flow generated by the micro spiral nozzles 1201 is more uniform and has a wider coverage.

[0022] Please see Figure 4 and Figure 6The outer walls of the first mounting sleeve 13 and the second mounting sleeve 14 are both in contact with the inner wall of the exchange cylinder 1, and the first mounting sleeve 13 and the second mounting sleeve 14 are both fixedly connected to the exchange cylinder 1. The bottom of the inner sidewall of the first mounting sleeve 13 and the second mounting sleeve 14 is provided with a rotating groove 1403. The rotating groove 1403 provides a precise rotation track for the mounting ring 1503 of the first turntable assembly 15 and the second turntable assembly 21, which can guide the first turntable assembly 15 and the second turntable assembly 21 to rotate smoothly.

[0023] Please see Figure 4 , Figure 6 and Figure 7 Both the first turntable assembly 15 and the second turntable assembly 21 include a sleeve 1501, a mounting ring 1503, and a toothed ring 1504. The mounting ring 1503 is rotatably connected to the rotating groove 1403. The sleeve 1501 is located at the center of the mounting ring 1503, and the toothed ring 1504 is located at the bottom of the mounting ring 1503. A screen 1502 is provided between the mounting ring 1503 and the sleeve 1501 of the first turntable assembly 15, and an ultrafiltration membrane 2 is provided between the mounting ring 1503 and the sleeve 1501 of the second turntable assembly 21. 101. The top of the screen 1502 is filled with ion exchange resin, and the particle size of the ion exchange resin on the three screens 1502 gradually decreases from top to bottom. The sieve holes of the screen 1502 are smaller than the particle size of the ion exchange resin. The larger particle size of the resin in the upper layer can play a role in preliminary filtration and dispersion of water flow, so that the water flow can penetrate downward more evenly. At the same time, it can reduce the resistance of water flow into the resin layer. The smaller particle size of the resin in the lower layer ensures the exchange effect while the water flow resistance is within an acceptable range.

[0024] Please see Figure 3 The drive assembly 9 includes a drive motor 10, a mounting base 11, a main shaft 16, and a transmission shaft 17. The mounting base 11 is welded to the exchange cylinder 1. The drive motor 10 is mounted on the top of the mounting base 11, and the transmission shaft 17 is vertically mounted inside the mounting base 11 at the end closest to the exchange cylinder 1. The main shaft 16 is vertically mounted inside the mounting base 11 at the end furthest from the exchange cylinder 1, and the output end of the drive motor 10 is connected to the top of the main shaft 16. A transmission gear 19 is provided on the transmission shaft 17 near the gear ring 1504, meshing with it. A transmission gear 19 is also provided on the main shaft 16 near the transmission gear 19. A main gear 18 is provided at the position to mesh with it. After the drive motor 10 is powered on and started, it drives the main shaft 16 connected to it to rotate. The main gear 18 on the main shaft 16 rotates accordingly and transmits power to the transmission shaft 17. The transmission gear 19 on the transmission shaft 17 meshes with the gear ring 1504 at the bottom of the first turntable assembly 15 and the second turntable assembly 21, thereby driving the mounting ring 1503 to rotate in the rotating groove 1403 at the bottom of the inner sidewall of the first mounting sleeve 13 and the second mounting sleeve 14, so as to realize the synchronous rotation of the first turntable assembly 15 and the second turntable assembly 21.

[0025] Please see Figure 3 A booster pump 22 is installed at the bottom of the mounting base 11, and the output end of the booster pump 22 is connected to the return water pipe 6. A mounting plate 1101 is installed in the mounting base 11 above the booster pump 22, and the bottom of the main shaft 16 and the transmission shaft 17 are rotatably connected to the mounting plate 1101. Through holes 101 are opened on the side wall of the exchange drum 1 near the transmission gear 19. The transmission gear 19 can mesh with the gear ring 1504 inside the exchange drum 1 through the through holes 101, which is a more reasonable design.

[0026] Please see Figure 5 A U-shaped mounting bracket 23 is connected between the top of one side of the positioning tube 20 and the exchange cylinder 1. A silicone scraper 2301 is provided at the bottom of the mounting bracket 23. The silicone scraper 2301 is in contact with the upper surface of the ultrafiltration membrane 2101. Three scraping plates 26 are equally spaced between the positioning tube 20 and the exchange cylinder 1 below the mounting bracket 23. The scraping plates 26 extend between the second mounting sleeve 14 and the sleeve 1501. The bottom of the scraping plate 26 is higher than the screen 1502. The silicone scraper 2301 is in contact with the upper surface of the ultrafiltration membrane 2101. During the operation of the equipment, as the second turntable assembly 21 rotates, the silicone scraper 2301 can scrape off the impurities trapped on the surface of the ultrafiltration membrane 2101 in time. The scraping plates 26 extend between the second mounting sleeve 14 and the sleeve 1501. When the ion exchange resin is filled or replaced, the scraping plates 26 can scrape the newly filled resin evenly, so that the resin is evenly distributed on the screen 1502.

[0027] Please see Figure 6 A baffle 25 is hinged to the inner side of the second mounting sleeve 14 near the outlet 1401, and the baffle 25 fits against the inner wall of the second mounting sleeve 14. A hydraulic telescopic rod 24 is hinged to the top of the end of the baffle 25 away from the hinge axis, and the other end of the hydraulic telescopic rod 24 is hinged to the positioning tube 20. When the ion exchange resin needs to be replaced or replenished, the hydraulic telescopic rod 24 is controlled by the control panel 3 to open the baffle 25 inside the second mounting sleeve 14. The old ion exchange resin is blocked by the baffle 25 and cannot move with the first turntable assembly 15. It can only be discharged from the outlet 1401. The new resin enters the second mounting sleeve 14 from the inlet 1402, realizing the replacement and replenishment of the resin.

[0028] Detailed Implementation: In use, raw water enters the three-way valve 7 through the inlet 8, then enters the water distribution pipe 12 through the three-way valve 7, and is then evenly sprayed onto the second rotating disc assembly 21 of the exchange cylinder 1. The water first contacts the ultrafiltration membrane 2101 in the second rotating disc assembly 21, which traps large molecular impurities, completing the initial filtration. Afterward, the water continues to flow downward and contacts the ion exchange resins in the three first rotating disc assemblies 15, achieving the exchange and adsorption of calcium, magnesium, and other ions in the water, completing the softening treatment. During treatment, the drive motor 10 starts, driving the main shaft 16 to rotate. Through the meshing of the main gear 18 and the transmission gear 19, power is transmitted to the transmission shaft 17. The transmission gear 19 on the transmission shaft 17 meshes with the gear ring 1504 at the bottom of the first rotating disc assembly 15 and the second rotating disc assembly 21, causing the mounting ring 1503 to... The rotating tank 1403 rotates, enabling the first rotating disk assembly 15 and the second rotating disk assembly 21 to rotate, promoting full contact between water, resin, and ultrafiltration membrane 2101. During the treatment process, impurities trapped by the ultrafiltration membrane 2101 accumulate at the first mounting sleeve 13 and are periodically discharged through the slag discharge port 1301 and the slag outlet 27. When the resin needs to be replaced, the control panel 3 controls the hydraulic telescopic rod 24 to open the baffle 25 inside the second mounting sleeve 14. The old resin is discharged from the discharge port 1401 through the resin outlet 4, and the new resin enters from the resin feeding port 5 through the feed port 1402. At the same time, the scraper plate 26 scrapes the new resin to ensure uniform distribution. Some water that leaks from the through hole 101 on the side wall of the exchange cylinder 1 into the mounting base 11 is sent back to the three-way valve 7 by the booster pump 22 at the bottom of the mounting base 11 through the return water pipe 6 and participates in the treatment again.

[0029] 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. An ion exchanger for soft water treatment, comprising an exchange cylinder (1), characterized in that: The interior of the exchange cylinder (1) is arranged from top to bottom as follows: a water distribution pipe (12), a second turntable assembly (21), and three first turntable assemblies (15). A positioning pipe (20) is vertically inserted through the center of each of the second turntable assembly (21) and the three first turntable assemblies (15). A matching first mounting sleeve (13) is installed on the inner wall of the exchange cylinder (1) near the second turntable assembly (21), and a slag discharge port (1301) is provided on the first mounting sleeve (1). A second mounting sleeve (14) is provided on the inner wall near the three first turntable assemblies (15) to cooperate with them. A resin outlet (4) and a resin feeding port (5) are respectively provided on both sides of the exchange cylinder (1) near the first turntable assembly (15). A discharge port (1401) and a feed port (1402) corresponding to the resin outlet (4) and the resin feeding port (5) are respectively provided on both sides of the second mounting sleeve (14). A drive assembly (9) is provided at one end of the exchange cylinder (1).

2. The ion exchanger for water softening according to claim 1, characterized in that: A three-way valve (7) is installed at the center of the top of the exchange cylinder (1), and the output end of the three-way valve (7) is connected to the water distribution pipe (12). The top of the three-way valve (7) is provided with a water inlet (8), and the end of the three-way valve (7) near the drive assembly (9) is connected to a return water pipe (6).

3. A water softening ion exchanger according to claim 1, wherein: A clean water outlet (2) is provided at the bottom of the end of the exchange cylinder (1) away from the drive assembly (9), and a control panel (3) is provided on the exchange cylinder (1) above the clean water outlet (2). A corresponding slag outlet (27) is provided on one side of the exchange cylinder (1) near the slag outlet (1301).

4. An ion exchanger for water softening according to claim 1, characterized in that: The water distribution pipe (12) consists of a vertically arranged main pipe (1203) and multiple horizontal branch pipes (1202) arranged radially. The top of the main pipe (1203) is connected to the output end of the three-way valve (7), and multiple micro spiral nozzles (1201) are arranged at equal intervals at the bottom of the branch pipes (1202).

5. An ion exchanger for soft water treatment according to claim 1, characterized in that: The outer walls of the first mounting sleeve (13) and the second mounting sleeve (14) are both in contact with the inner wall of the exchange cylinder (1), and the first mounting sleeve (13) and the second mounting sleeve (14) are both fixedly connected to the exchange cylinder (1). The bottom of the inner sidewall of the first mounting sleeve (13) and the second mounting sleeve (14) are both provided with a rotating groove (1403).

6. A water softening ion exchanger according to claim 1, wherein: The first turntable assembly (15) and the second turntable assembly (21) both include a sleeve (1501), a mounting ring (1503) and a toothed ring (1504), and the mounting ring (1503) is rotatably connected to the rotating groove (1403). The sleeve (1501) is provided at the center of the mounting ring (1503), and the toothed ring (1504) is provided at the bottom of the mounting ring (1503). A screen (1502) is provided between the mounting ring (1503) and the sleeve (1501) of the first turntable assembly (15), and an ultrafiltration membrane (2101) is provided between the mounting ring (1503) and the sleeve (1501) of the second turntable assembly (21). The top of the screen (1502) is filled with ion exchange resin, and the particle size of the ion exchange resin on the three screens (1502) gradually decreases from top to bottom. The sieve holes of the screen (1502) are smaller than the particle size of the ion exchange resin.

7. A water softening ion exchanger according to claim 1, wherein: The drive assembly (9) includes a drive motor (10), a mounting base (11), a main shaft (16), and a transmission shaft (17). The mounting base (11) is welded to the exchange cylinder (1). The drive motor (10) is mounted on the top of the mounting base (11), and the transmission shaft (17) is vertically mounted inside the mounting base (11) at one end near the exchange cylinder (1). The main shaft (16) is vertically mounted inside the mounting base (11) at one end away from the exchange cylinder (1). The output end of the drive motor (10) is connected to the top of the main shaft (16). A transmission gear (19) meshing with the gear ring (1504) is provided on the transmission shaft (17), and a main gear (18) meshing with the transmission gear (19) is provided on the main shaft (16) at one end near the transmission gear (19).

8. A water softening ion exchanger according to claim 7, characterised in that: A booster pump (22) is provided at the bottom of the mounting base (11), and the output end of the booster pump (22) is connected to the return water pipe (6). A mounting plate (1101) is provided in the mounting base (11) above the booster pump (22), and the bottom of the main shaft (16) and the transmission shaft (17) are rotatably connected to the mounting plate (1101). A through hole (101) is provided on the side wall of the exchange cylinder (1) near the transmission gear (19).

9. A water softening ion exchanger according to claim 1, wherein: A U-shaped mounting bracket (23) is connected between the top of one side of the positioning tube (20) and the exchange cylinder (1), and a silicone scraper (2301) is provided at the bottom of the mounting bracket (23). The silicone scraper (2301) is in contact with the upper surface of the ultrafiltration membrane (2101). Three scraping plates (26) are provided at equal intervals between the positioning tube (20) and the exchange cylinder (1) below the mounting bracket (23), and the scraping plates (26) extend between the second mounting sleeve (14) and the sleeve (1501). The bottom of the scraping plate (26) is higher than the screen (1502).

10. A water softening ion exchanger according to claim 1, wherein: A baffle (25) is hinged to the inner side of the second mounting sleeve (14) near the discharge port (1401), and the baffle (25) is in contact with the inner wall of the second mounting sleeve (14). A hydraulic telescopic rod (24) is hinged to the top of the baffle (25) away from the hinge axis, and the other end of the hydraulic telescopic rod (24) is hinged to the positioning tube (20).

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