A lithium bis(fluorosulfonyl)imide ultrapurified water treatment device and treatment method

Abstract

The present invention relates to the field of water treatment technology, and specifically discloses a lithium bis(fluorosulfonyl)imide ultrapurified water treatment device and treatment method, comprising: a raw water pretreatment device, a reverse osmosis device, an ion exchange device, an ultrafiltration device, and a microporous filtration device; the reverse osmosis device comprises: a charging storage cabin, a control box, a cleaning mechanism, and a reverse osmosis mechanism; the cleaning mechanism is arranged outside the charging storage cabin; the reverse osmosis mechanism is arranged outside the cleaning mechanism. Through a multi-step filtration process, impurities in the water are removed at different angles, and each filtration step cooperates with each other to target impurities of a specific type and size range, while maintaining a relatively reasonable flux while ensuring a high retention rate, gradually improving the separation effect from other substances, and optimizing the existing reverse osmosis membrane device so that it can be automatically cleaned without affecting normal operation, shortening the cleaning cycle and improving the cleaning effect.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment, in particular to a lithium bis(fluorosulfonyl)imide ultrapurified water treatment device and a treatment method. Background Art

[0002] During the treatment of lithium bis(fluorosulfonyl)imide ultrapurified water, existing filter membranes may not be able to completely and accurately separate lithium bis(fluorosulfonyl)imide from other substances of similar size or properties. The filter membrane may make misjudgments during the separation process, resulting in the presence of impurities in the product, affecting its performance in high-end applications such as electrolytes. Increasing the retention rate of the filter membrane often leads to a decrease in membrane flux, and vice versa. In the treatment of lithium bis(fluorosulfonyl)imide ultrapurified water, it is necessary to maintain a high membrane flux while ensuring a high retention rate. In addition, as time goes by, impurities in the water inside the filtration device will continue to deposit and accumulate on the surface of the reverse osmosis membrane. These pollutants will clog the membrane pores and increase the water flow resistance, thereby significantly reducing the membrane flux. Summary of the Invention

[0003] The object of the present invention is to provide a lithium bis(fluorosulfonyl)imide ultrapurified water treatment device and a treatment method to solve the technical problems mentioned in the above background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a lithium bis(fluorosulfonyl)imide ultrapurified water treatment device, comprising: a raw water pretreatment device, a reverse osmosis device, an ion exchange device, an ultrafiltration device and a microporous filtration device; the raw water pretreatment device is internally provided with a mechanical filter, an activated carbon filter and a softener, the water inlet of the raw water pretreatment device is connected to an external raw water inlet pipe, the water outlet of the mechanical filter is connected to the water inlet of the activated carbon filter through a pipe, the water outlet of the activated carbon filter is connected to the water inlet of the softener through a pipe, the water outlet of the softener is connected to the reverse osmosis device through a pipe, the reverse osmosis device is connected to the water inlet of the ion exchange device through a pipe, the water outlet of the ion exchange device is connected to the water inlet of the ultrafiltration device through a pipe, the water outlet of the ion exchange device is connected to the water inlet of the microporous filtration device through a pipe, and the water outlet of the microporous filtration device is connected to an external terminal collection device through a pipe.

[0005] Preferably, the reverse osmosis device includes: a charging storage cabin, a control box, a cleaning mechanism and a reverse osmosis mechanism; the control box is arranged on the left side of the charging storage cabin, and the control box and the charging storage cabin are electrically connected; the cleaning mechanism is arranged outside the charging storage cabin, and the cleaning mechanism can be stored inside the charging storage cabin; the reverse osmosis mechanism is arranged outside the cleaning mechanism.

[0006] Preferably, the cleaning mechanism includes: a robot chassis, a sub-control module, a vision module, a water tank, a first pump body, a mounting bracket, an extension tube, a liquid collecting tank, a second pump body, a solenoid valve and a bottom joint; the robot chassis is located outside the charging storage cabin; the sub-control module is arranged inside the robot chassis, the sub-control module and the robot chassis are electrically connected, and the sub-control module and the control box are remotely connected via a network; the vision module is installed on the left front of the top of the robot chassis through a bracket, and the vision module and the sub-control module are electrically connected; the water tank is installed in the middle of the rear side of the top of the robot chassis; the first pump body is installed on the left side of the top of the water tank, and the first pump body and the inner cavity of the water tank are connected. Connection, the first pump body and the sub-control module are electrically connected; the mounting bracket is fixedly installed in the middle of the top of the water tank; the extension pipe is installed on the rear side of the mounting bracket, and the extension pipe and the first pump body are connected through a pipeline; the liquid collecting tank is installed on the front side of the mounting bracket; the second pump body is installed on the right side of the top of the water tank, the second pump body and the liquid collecting tank are connected through a pipeline, and the second pump body and the sub-control module are electrically connected; the solenoid valve is installed in the front right of the top of the water tank, the solenoid valve and the second pump body are connected through a pipeline, and the solenoid valve and the sub-control module are electrically connected; the bottom joint is installed in the middle of the front side of the robot chassis, and the bottom joint can be connected to the solenoid valve through a pipeline.

[0007] Preferably, the water tank can be pre-filled with pure water, and the first pump body can be controlled by the sub-control module to pump the pure water in the water tank into the extension tube.

[0008] Preferably, the cleaning mechanism further includes: a fixed frame, a first telescopic guide rail, a first pulley, a housing, a rotating shaft, a first motor, a bevel gear set, a first connecting frame, a second pulley, a second telescopic guide rail, a second connecting frame, a third pulley, a belt, a cross frame and a top joint; the number of the fixed frames is two, and the two fixed frames are respectively mounted on the left and right sides of the top middle of the robot chassis; the number of the first telescopic guide rails is two, and the two first telescopic guide rails are respectively mounted on the front sides of the left and right fixed frames in the up and down directions; the number of the first pulleys is two groups, and the number of the first pulleys in each group is two, and the two groups of the first pulleys are respectively Installed on the upper and lower ends of the rear side of the fixed ends of the left and right first telescopic guide rails; the number of the shells is two, and the two shells are respectively installed on the outer sides of the left and right fixed frames; the number of the rotating shafts is two, and the two rotating shafts are rotatably connected to the inner sides of the left and right shells through bearings, and the inner ends of the two rotating shafts are respectively connected to the outer ends of the shafts of the left and right bottom first pulleys; the number of the first motors is two, and the two first motors are respectively installed on the rear sides of the left and right shells, and the rotating ends of the left and right first motors extend into the inner side of the shells, and the first motor and the sub-control module are electrically connected; the number of the bevel gear sets is two, and the two bevel gear sets are One side gear of the bevel gear set is respectively installed on the rotation of the left and right first motors, and the other side gears of the two bevel gear sets are respectively installed on the outside of the left and right rotating shafts; the number of the first connecting frames is two groups, and the number of the first connecting frames in each group is two. The two groups of the first connecting frames are respectively installed on the upper and lower ends of the front side of the telescopic end of the left and right first telescopic guide rails; the number of the second pulleys is two groups, and the number of the second pulleys in each group is two. The two groups of the second pulleys are respectively rotatably installed on the outside of the left and right groups of first connecting frames through pins; the number of the second telescopic guide rails is two, and the two second telescopic guide rails are respectively installed in the upper and lower directions on the left and right groups The front side of the first connecting frame; there are two second connecting frames, and the two second connecting frames are respectively installed on the bottom front side of the telescopic end of the left and right second telescopic guide rails; there are two third pulleys, and the two third pulleys are respectively rotatably installed on the outside of the left and right second connecting frames through pins; there are two belts, and the two belts are respectively circumferentially sleeved on the upper and lower first pulleys and the second pulley and the outside of the third pulley on the left and right sides; the cross frame is installed on the top front side of the telescopic end of the left and right second telescopic guide rails along the left and right directions; the top joint is installed on the front side of the cross frame, and the top joint can be connected to the extension tube through a pipeline.

[0009] Preferably, the cleaning mechanism also includes: a base plate, a support frame, an annular disk, a rotating disk, a slot seat, an insertion rod, a rotating module, a first electric telescopic rod, a slot frame, a telescopic frame, a clamping module and a second electric telescopic rod; the base plate is fixedly mounted on the top of the robot chassis and is located on the left and right inner sides of the two fixed frames; the number of the support frames is four, and the four support frames are mounted on the top four corners of the base plate; the annular disk is mounted on the inner top of the four support frames; the rotating disk is rotatably connected to the inner side of the annular disk through a bearing; the number of the slot seats is two, and the two slot seats are respectively embedded in the front and rear sides of the rotating disk; the number of the insertion rods is two, and the two insertion rods are respectively inserted into the inner cavities of the two slot seats in the up and down directions; the rotating module is mounted on the top of the base plate and Located at the lower inner side of the support frame, the rotation module and the sub-control module are electrically connected; the first electric telescopic rod is installed at the top of the rotating end of the third pulley, and the first electric telescopic rod is electrically connected to the sub-control module; the slot frame is arranged at the top of the two insertion rods along the front-to-back direction, and the telescopic end of the first electric telescopic rod extends from the middle opening of the annular disk out of the upper surface of the annular disk and is connected to the bottom of the slot frame; the telescopic frame is inserted into the front side of the slot frame along the front-to-back direction; the clamping module is installed at the front end of the telescopic frame, and the clamping module and the sub-control module are electrically connected; the second electric telescopic rod is arranged on the inner side of the top end of the slot frame along the front-to-back direction, the telescopic end of the second electric telescopic rod is connected to the inner rear end of the telescopic frame, and the second electric telescopic rod and the sub-control module are electrically connected.

[0010] Preferably, the reverse osmosis mechanism includes: a reverse osmosis mechanism housing, a liquid inlet pipe, a liquid outlet pipe, a three-way solenoid valve, an electric control joint pipe, a slide rail seat, a clamping claw, a third electric telescopic rod and a reverse osmosis membrane cartridge; the reverse osmosis mechanism housing is mounted on the outside of the charging storage compartment; the liquid inlet pipe is arranged at the inner bottom of the reverse osmosis mechanism housing, and the liquid inlet pipe is connected to the water outlet of the softener; the liquid outlet pipe is mounted on the top of the reverse osmosis mechanism housing, and the liquid outlet pipe is connected to the water inlet of the ion exchange device through a pipe;

[0011] There are two groups of three-way solenoid valves, and each group of three-way solenoid valves has two three-way solenoid valves. The two groups of three-way solenoid valves are respectively installed on the outside of the water outlet of the liquid inlet pipe and the liquid outlet pipe, and the three-way solenoid valves are electrically connected to the control box; there are two groups of electric control joint pipes, and each group of electric control joint pipes has two two electric control joint pipes. One end of the two groups of electric control joint pipes is respectively installed on the inner end of the two groups of three-way solenoid valves, and the electric control joint pipes are electrically connected to the control box; there are two slide rail seats, and the two slide rail seats are respectively installed on the left and right ends of the front side of the reverse osmosis mechanism shell in the left and right directions; there are two groups of clamping claws, each There are two clamping claws in the group, and the two groups of clamping claws are respectively inserted into the left and right ends of the inner sides of the left and right slide seats; there are two groups of third electric telescopic rods, and the number of third electric telescopic rods in each group is two. The two groups of third electric telescopic rods are respectively installed on the left and right ends of the outer sides of the left and right slide seats, and the telescopic ends of the left and right groups of third electric telescopic rods extend into the inner side of the slide seat and are fixedly connected to the outer sides of the two groups of clamping claws, and the third electric telescopic rods are electrically connected to the control box; there are two reverse osmosis membrane cylinders, and the two reverse osmosis membrane cylinders are respectively clamped on the inner sides of the two groups of clamping claws in the up and down directions.

[0012] Preferably, the upper and lower ends of the two reverse osmosis membrane cartridges can be connected to the other ends of the two groups of electric control joint pipes respectively.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. A mechanical filter initially removes large particles of impurities, an activated carbon filter reduces the organic matter content and residual chlorine content, and a softener removes calcium and magnesium ions from the raw water to reduce water hardness. The water, pretreated by the raw water pretreatment unit, is pressurized by a high-pressure pump and then enters the liquid inlet pipe through a high-pressure pipeline. It then enters the reverse osmosis membrane cartridge through the corresponding three-way solenoid valve and electronically controlled connector pipe at the bottom. Under pressure, the water passes through the reverse osmosis membrane inside the reverse osmosis membrane cartridge from bottom to top to form purified water. The purified water flows out from the electronically controlled connector pipe and three-way solenoid valve at the top of the reverse osmosis membrane cartridge into the liquid outlet pipe, and then enters the ion exchange device through the liquid outlet pipe to remove ionic impurities in the water, obtaining water of higher purity. The water treated by the ion exchange device is then piped into the microporous filtration device, which filters out extremely small particles, bacteria, and other impurities remaining in the water. The filtered ultra-purified water then flows out of the water outlet of the microporous filtration device as lithium bis(fluorosulfonyl)imide ultra-purified water and is collected and stored centrally by an external terminal collection device.

[0015] 2. The clamping claws at the corresponding positions are driven by the third electric telescopic rod to move outward inside the slide rail seat, and the clamping claws on both sides release the clamping fixation on the outside of the reverse osmosis membrane cylinder. The upper and lower electric control joint pipes are shortened and stop docking with the upper and lower ends of the reverse osmosis membrane cylinder. The first electric telescopic rod, the second electric telescopic rod and the clamping module cooperate to move the reverse osmosis membrane cylinder to the top position of the slot seat, and dock the bottom of the reverse osmosis membrane cylinder with the bottom joint. The prefabricated program inside the sub-control module controls the first motor, the first pump body and the second pump body to start. The first motors on both sides drive the rotating shaft to rotate under the transmission of the bevel gear set at the corresponding position, so that the rotating shaft drives the first pulley at the bottom to rotate, and the belt moves circumferentially under the drive of the first pulley at the bottom, and With the cooperation of the first pulley on the top, the second pulleys on the upper and lower sides, and the third pulley, the first connecting frame and the second connecting frame at the corresponding position are driven to move upward or downward, and the internal telescopic ends of the first telescopic guide rail and the second telescopic guide rail are lifted and lowered to the specified position, and then, with the cooperation of the horizontal frame, the top joint is driven to dock with the top of the reverse osmosis membrane cylinder. The first pump body pumps the purified water stored in the water tank into the reverse osmosis membrane cylinder through the internal pipeline of the extension pipe and the top joint, so that the purified water inside the reverse osmosis membrane cylinder and the original filtered liquid pass downward in the opposite direction for reverse flushing. The waste water after flushing enters the second pump body through the bottom joint and the solenoid valve, and is pumped into the liquid collecting tank by the second pump body for storage.

[0016] In summary, the present invention removes impurities in water at different angles through a multi-step filtration process. Each filtration step cooperates with each other to target impurities of specific types and size ranges, while ensuring a high retention rate and maintaining a relatively reasonable flux, gradually improving the separation effect from other substances, and optimizing the existing reverse osmosis membrane device so that it can be automatically cleaned without affecting normal work, shortening the cleaning cycle and improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the present invention;

[0018] Figure 2 for Figure 1 Schematic diagram of the reverse osmosis device structure;

[0019] Figure 3 for Figure 2 Exploded diagram of the cleaning mechanism;

[0020] Figure 4 for Figure 3 A magnified view of point A;

[0021] Figure 5 for Figure 3 Enlarged view of point B;

[0022] Figure 6 for Figure 3Enlarged view of point C;

[0023] Figure 7 for Figure 6 A magnified view of the reverse osmosis mechanism;

[0024] Figure 8 for Figure 7 Enlarged view of point D.

[0025] In the figure: 1. Charging storage compartment; 2. Control box; 3. Cleaning mechanism; 31. Robot chassis; 32. Sub-control module; 33. Vision module; 34. Water tank; 35. First pump body; 36. Mounting frame; 37. Extension pipe; 38. Liquid collecting tank; 39. Second pump body; 310. Solenoid valve; 311. Bottom joint; 312. Fixed frame; 313. First telescopic guide rail; 314. First pulley; 315. Housing; 316. Rotating shaft; 317. First motor; 318. Bevel gear set; 319. First connecting frame; 320. Second pulley; 321. Second telescopic guide rail; 322. Second connecting frame; 323. Third pulley; 324, belt; 325, cross frame; 326, top joint; 327, bottom plate; 328, support frame; 329, annular disk; 330, rotating disk; 331, slot seat; 332, insertion rod; 333, rotating module; 334, first electric telescopic rod; 335, slot frame; 336, telescopic frame; 337, clamping module; 338, second electric telescopic rod; 4, reverse osmosis mechanism; 41, reverse osmosis mechanism housing; 42, liquid inlet pipe; 43, liquid outlet pipe; 44, three-way solenoid valve; 45, electric control joint pipe; 46, slide rail seat; 47, clamping claw; 48, third electric telescopic rod; 49, reverse osmosis membrane cylinder. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figures 1-8The present invention provides a technical solution: a lithium bis(fluorosulfonyl)imide ultra-purified water treatment device, characterized in that it comprises: a raw water pretreatment device, a reverse osmosis device, an ion exchange device, an ultrafiltration device and a microporous filtration device; the raw water pretreatment device is internally provided with a mechanical filter, an activated carbon filter and a softener, the water inlet of the raw water pretreatment device is connected to an external raw water inlet pipe, the water outlet of the mechanical filter is connected to the water inlet of the activated carbon filter through a pipe, the water outlet of the activated carbon filter is connected to the water inlet of the softener through a pipe, the water outlet of the softener is connected to the reverse osmosis device through a pipe, the reverse osmosis device is connected to the water inlet of the ion exchange device through a pipe, the water outlet of the ion exchange device is connected to the water inlet of the ultrafiltration device through a pipe, the water outlet of the ion exchange device is connected to the water inlet of the microporous filtration device through a pipe, and the water outlet of the microporous filtration device is connected to an external terminal collection device through a pipe.

[0028] As a preferred solution, further, Figure 2 As shown, the reverse osmosis device includes: a charging storage cabin 1, a control box 2, a cleaning mechanism 3 and a reverse osmosis mechanism 4. The charging storage cabin 1 can be connected to the robot chassis 31 inside the cleaning mechanism 3 for charging; the control box 2 is arranged on the left side of the charging storage cabin 1, and the control box 2 and the charging storage cabin 1 are electrically connected. The control box 2 adopts manual operation of the staff or internal installation program for automatic control according to actual needs; the cleaning mechanism 3 is arranged outside the charging storage cabin 1, and the cleaning mechanism 3 can be stored inside the charging storage cabin 1; the reverse osmosis mechanism 4 is arranged outside the cleaning mechanism 3.

[0029] As a preferred solution, further, Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown, the cleaning mechanism 3 includes: a robot chassis 31, a sub-control module 32, a vision module 33, a water storage tank 34, a first pump body 35, a mounting frame 36, an extension pipe 37, a liquid collecting tank 38, a second pump body 39, a solenoid valve 310, a bottom joint 311, a fixed frame 312, a first telescopic guide rail 313, a first pulley 314, a housing 315, a rotating shaft 316, a first motor 317, a bevel gear set 318, a first connecting frame 319, a second pulley 320, a second telescopic guide rail 321, a second connecting frame 322, a third pulley 323, a belt 324, a cross frame 325, a top joint 326, a bottom plate 327, a support frame 328, a ring disk 329, a rotating disk 330, and a slot seat 3 31, an insertion rod 332, a rotation module 333, a first electric telescopic rod 334, a slot frame 335, a telescopic frame 336, a clamping module 337 and a second electric telescopic rod 338; the robot chassis 31 is located outside the charging storage cabin 1, and a battery module is provided inside the robot chassis 31 to power the internal electrical components of the cleaning mechanism 3; the sub-control module 32 is provided inside the robot chassis 31, the sub-control module 32 is electrically connected to the robot chassis 31, the sub-control module 32 and the control box 2 are remotely connected to the network, and a preset program is provided inside the sub-control module 32 to be remotely awakened by the control box 2 for operation; the vision module 33 is installed on the top left front of the robot chassis 31 through a bracket, and the vision module 33 and the sub-control module 32 is electrically connected, and the visual module 33 collects image information data of the external environment information during the movement of the robot chassis 31 to guide the movement of the robot chassis 31; the water tank 34 is installed in the middle of the top rear side of the robot chassis 31, and the water tank 34 can be pre-filled with pure water; the first pump body 35 is installed on the left side of the top of the water tank 34, and the first pump body 35 is connected to the inner cavity of the water tank 34. The first pump body 35 is electrically connected to the sub-control module 32. The first pump body 35 is controlled by the sub-control module 32 to pump the pure water in the water tank 34 into the extension pipe 37; the mounting bracket 36 is fixedly installed in the middle of the top of the water tank 34; the extension pipe 37 is installed on the rear side of the mounting bracket 36, and the extension pipe 37 is installed 7 is connected to the first pump body 35 through a pipeline, and the extension tube 37 adopts a storage tray structure to wind the extension tube, and unwinds it during the up and down movement of the top joint 326; the liquid collecting tank 38 is installed on the front side of the mounting frame 36, and a drain valve is provided on the outside of the liquid collecting tank 38 to discharge the waste liquid in a centralized manner after the waste liquid collects to a certain volume; the second pump body 39 is installed on the right side of the top of the water storage tank 34, and the second pump body 39 and the liquid collecting tank 38 are connected by a pipeline. The second pump body 39 is electrically connected to the sub-control module 32, and the second pump body 39 is controlled by the sub-control module 32. The waste water after flushing enters the second pump body 39 through the bottom joint 311 and the solenoid valve 310, and is pumped into the liquid collecting tank 38 by the second pump body 39 for storage;The solenoid valve 310 is installed at the front right of the top of the water tank 34. The solenoid valve 310 is connected to the second pump body 39 through a pipeline. The solenoid valve 310 is electrically connected to the sub-control module 32. The solenoid valve 310 is controlled to open and close by the sub-control module 32; the bottom joint 311 is installed in the middle of the front side of the robot chassis 31, and the bottom joint 311 can be connected to the solenoid valve 310 through a pipeline; there are two fixed frames 312, and the two fixed frames 312 are respectively installed on the left and right sides of the top middle of the robot chassis 31; there are two first telescopic guide rails 313, and the two first telescopic guide rails 313 are respectively installed on the front sides of the left and right fixed frames 312 in the up and down directions. The inner guide rail frame of the first telescopic guide rail 313 is installed in the up and down directions. On the front side of the fixed frame 312, a telescopic end is inserted into the guide rail frame; there are two groups of first pulleys 314, and the number of each group of first pulleys 314 is two. The two groups of first pulleys 314 are respectively mounted on the upper and lower ends of the rear fixed ends of the left and right first telescopic guide rails 313; there are two shells 315, and the two shells 315 are respectively mounted on the outer sides of the left and right fixed frames 312; there are two rotating shafts 316, and the two rotating shafts 316 are respectively rotatably connected to the inner sides of the left and right shells 315 through bearings, and the inner ends of the two rotating shafts 316 are respectively connected to the outer ends of the axes of the left and right bottom first pulleys 314; there are two first motors 317, and the two first motors 317 are respectively mounted on the left and right shells 3 15, the rotating ends of the left and right first motors 317 extend into the inner side of the housing 315, the first motor 317 is electrically connected to the sub-control module 32, and the first motor 317 is controlled by the sub-control module 32 to drive the bevel gear on one side of the bevel gear set 318 to rotate; the number of the bevel gear sets 318 is two, and the gears on one side of the two bevel gear sets 318 are respectively installed on the rotation of the left and right first motors 317, and the gears on the other side of the two bevel gear sets 318 are respectively installed on the outside of the left and right rotating shafts 316, and the bevel gear sets 318 can play a transmission role between the first motor 317 and the rotating shaft 316; the number of the first connecting frames 319 is two groups, and the number of each group of first connecting frames 319 is two, and the two groups of first connecting frames 319 are respectively Installed at the upper and lower ends of the front side of the telescopic end of the left and right first telescopic guide rails 313; the number of second pulleys 320 is two groups, and the number of each group of second pulleys 320 is two. The two groups of second pulleys 320 are respectively rotatably installed on the outer sides of the left and right groups of first connecting frames 319 through pins; the number of second telescopic guide rails 321 is two, and the two second telescopic guide rails 321 are respectively installed on the front sides of the left and right groups of first connecting frames 319 along the up and down directions. The internal guide rail frame of the second telescopic guide rail 321 is installed on the front side of the first connecting frame 319 along the up and down direction, and the telescopic end is inserted into the guide rail frame; the number of second connecting frames 322 is two, and the two second connecting frames 322 are respectively installed on the bottom front side of the telescopic end of the left and right second telescopic guide rails 321;There are two third pulleys 323, and the two third pulleys 323 are respectively rotatably mounted on the outside of the left and right second connecting frames 322 through pins; there are two belts 324, and the two belts 324 are respectively circumferentially sleeved on the upper and lower first pulleys 314 and the second pulley 320 on the left and right sides and the outside of the third pulley 323; the cross frame 325 is mounted on the top of the front side of the telescopic end of the left and right second telescopic guide rails 321 in the left and right directions; the top joint 326 is mounted on the front side of the cross frame 325, and the top joint 326 can be connected to the extension tube 37 through a pipeline; the bottom plate 327 is fixedly mounted on the top of the robot chassis 31 and is located on the left and right There are two fixed frames 312 inside; there are four support frames 328, and the four support frames 328 are installed at the four corners of the top of the bottom plate 327; the annular disk 329 is installed on the inner top of the four support frames 328; the rotating disk 330 is rotatably connected to the inner side of the annular disk 329 through a bearing, and the rotating disk 330 can rotate inside the annular disk 329; there are two slot seats 331, and the two slot seats 331 are respectively embedded in the front and back sides of the rotating disk 330; there are two insertion rods 332, and the two insertion rods 332 are respectively inserted into the inner cavities of the two slot seats 331 in the up and down directions, and the insertion rods 332 can move up and down in the inner cavity of the slot seats 331; the rotating mold The block 333 is installed at the top of the bottom plate 327 and is located at the inner side of the support frame 328. The rotating module 333 is electrically connected to the sub-control module 32; the first electric telescopic rod 334 is installed at the top of the rotating end of the third pulley 323. The first electric telescopic rod 334 is electrically connected to the sub-control module 32. The first electric telescopic rod 334 is controlled by the sub-control module 32 to extend and shorten, which can drive the slot frame 335 to move up and down; the slot frame 335 is arranged on the top of the two insertion rods 332 in the front and back directions. The telescopic end of the first electric telescopic rod 334 extends from the middle opening of the annular disk 329 to the upper surface of the annular disk 329 and is connected to the bottom of the slot frame 335; the telescopic frame 335 is arranged at the top of the two insertion rods 332 in the front and back directions. The telescopic end of the first electric telescopic rod 334 extends from the middle opening of the annular disk 329 to the upper surface of the annular disk 329 and is connected to the bottom of the slot frame 335. 36 is plugged into the front side of the slot frame 335 in the front-to-back direction; a clamping module 337 is mounted at the front end of the telescopic frame 336. The clamping module 337 is electrically connected to the sub-control module 32 and controlled by the sub-control module 32. The clamping module 337 can clamp and grasp the reverse osmosis membrane cartridge 49. A second electric telescopic rod 338 is disposed in the front-to-back direction at the top inner side of the slot frame 335. The telescopic end of the second electric telescopic rod 338 is connected to the inner rear end of the telescopic frame 336. The second electric telescopic rod 338 is electrically connected to the sub-control module 32. The extension and contraction of the second electric telescopic rod 338 is controlled by the sub-control module 32 to drive the telescopic frame 336 to move forward and backward.

[0030] As a preferred solution, further, Figure 7 and Figure 8As shown, the reverse osmosis mechanism 4 includes: a reverse osmosis mechanism housing 41, a liquid inlet pipe 42, a liquid outlet pipe 43, a three-way solenoid valve 44, an electric control joint pipe 45, a slide rail seat 46, a clamping claw 47, a third electric telescopic rod 48 and a reverse osmosis membrane cartridge 49; the reverse osmosis mechanism housing 41 is installed on the outside of the charging storage cabin 1; the liquid inlet pipe 42 is arranged at the inner bottom of the reverse osmosis mechanism housing 41, and the liquid inlet pipe 42 is connected to the softener outlet; the liquid outlet pipe 43 is installed on the top of the reverse osmosis mechanism housing 41, and the liquid outlet pipe 43 is connected to the water inlet of the ion exchange device through a pipe; the three-way solenoid valve 44 is installed on the outside of the charging storage cabin 1; the liquid inlet pipe 42 is arranged at the inner bottom of the reverse osmosis mechanism housing 41, and the liquid outlet pipe 43 is connected to the water inlet of the ion exchange device through a pipe; There are two groups, each group of three-way solenoid valves 44 has two, the two groups of three-way solenoid valves 44 are respectively installed on the outside of the water outlet of the liquid inlet pipe 42 and the liquid outlet pipe 43, and the three-way solenoid valves 44 are electrically connected to the control box 2; there are two groups of electric control joint pipes 45, each group of electric control joint pipes 45 has two, one end of the two groups of electric control joint pipes 45 are respectively installed on the inner ends of the two groups of three-way solenoid valves 44, the electric control joint pipes 45 are electrically connected to the control box 2, the electric control joint pipes 45 are controlled by the control box 2, and a telescopic component is provided inside the electric control joint pipe 45 to be able to move up and down with the reverse osmosis membrane cylinder 49 The two ends are docked; the number of slide rail seats 46 is two, and the two slide rail seats 46 are respectively installed at the left and right ends of the front side of the reverse osmosis mechanism housing 41 along the left and right directions; the number of clamping claws 47 is two groups, and the number of each group of clamping claws 47 is two. The two groups of clamping claws 47 are respectively inserted into the left and right ends of the inner sides of the left and right slide rail seats 46, and the clamping claws 47 can move inside and outside the inner side of the slide rail seat 46; the number of third electric telescopic rods 48 is two groups, and the number of each group of third electric telescopic rods 48 is two. The two groups of third electric telescopic rods 48 are respectively installed on the left and right outer sides of the left and right slide rail seats 46. At the right two ends, the telescopic ends of the left and right groups of third electric telescopic rods 48 extend into the inner side of the slide rail seat 46 and are fixedly connected to the outer sides of the two groups of clamping claws 47. The third electric telescopic rod 48 is electrically connected to the control box 2. The third electric telescopic rod 48 is controlled by the control box 2 and can extend and shorten itself to drive the clamping claws 47 at the corresponding positions to move inward and outward. There are two reverse osmosis membrane cylinders 49, and the two reverse osmosis membrane cylinders 49 are respectively clamped on the inner sides of the two groups of clamping claws 47 in the upper and lower directions. The upper and lower ends of the two reverse osmosis membrane cylinders 49 are respectively connected to the other ends of the two groups of electric control joint pipes 45.

[0031] A method for treating ultrapurified water using lithium bis(fluorosulfonyl)imide comprises the following steps:

[0032] Step 1: Raw water enters the mechanical filter inside the raw water pretreatment device through the water inlet pipe. Under pressure, the raw water flows into the mechanical filter from the top. Suspended matter in the raw water with a particle size larger than the pores of the filter medium in the mechanical filter is trapped inside the filter medium in the mechanical filter, achieving the purpose of preliminary removal of large particle impurities;

[0033] Step 2: Raw water flows out from the bottom of the mechanical filter and enters the activated carbon filter through the pipe. Under pressure, the raw water slowly flows through the activated carbon layer in the activated carbon filter. The organic matter in the raw water is adsorbed on the surface and pores of the activated carbon layer, achieving the purpose of reducing the organic matter content and residual chlorine content;

[0034] Step 3: The raw water flows out from the other end of the activated carbon filter and enters the softener through the pipe. Under pressure, the raw water passes through the ion exchange resin layer in the softener. The calcium and magnesium ions in the raw water undergo ion exchange reactions with the sodium ions in the resin, removing the calcium and magnesium ions to reduce the hardness of the water.

[0035] Step 4: The water pretreated by the raw water pretreatment device is pressurized by a high-pressure pump and then enters the liquid inlet pipe 42 through the high-pressure pipeline. It then enters the reverse osmosis membrane cartridge 49 through the three-way solenoid valve 44 and the electric control joint pipe 45 at the corresponding position below. Under the action of pressure, the water passes through the reverse osmosis membrane inside the reverse osmosis membrane cartridge 49 from bottom to top to form purified water. The purified water flows out from the electric control joint pipe 45 and the three-way solenoid valve 44 at the top of the reverse osmosis membrane cartridge 49 to the liquid outlet pipe 43, and then enters the ion exchange device through the liquid outlet pipe 43.

[0036] Step 5: After the osmotic membrane inside the reverse osmosis membrane cartridge 49 has been used for a long time, the staff controls the control box 2 to remotely start the sub-control module 32. The pre-programmed program inside the sub-control module 32 controls the robot chassis 31 to move out of the charging storage compartment 1 and to the right side of the reverse osmosis mechanism 4. The staff controls the three-way solenoid valve 44 at the corresponding position to close and cut off the flow of liquid inside the electric control connector pipe 45 at the corresponding position, while keeping the reverse osmosis membrane cartridge 49 at another position working normally.

[0037] Step 6: The rotation module 333 drives the first electric telescopic rod 334 to rotate, and drives the slot frame 335 to rotate to the specified direction position under the cooperation of the first electric telescopic rod 334. The first electric telescopic rod 334 drives the slot frame 335 to move up and down, and under the limiting action of the insertion rod 332, the slot frame 335 is lifted and lowered to the specified height position, so that the clamping module 337 is aligned with the reverse osmosis membrane cylinder 49 at the specified position. The second electric telescopic rod 338 drives the telescopic frame 336 to extend to the specified length position in the inner cavity of the slot frame 335, so that the clamping module 337 moves to the outer side of the reverse osmosis membrane cylinder 49, and the clamping module 337 clamps and grabs the outside of the reverse osmosis membrane cylinder 49;

[0038] Step 7: The third electric telescopic rod 48 shortens and drives the clamping claws 47 at the corresponding position to move outward inside the slide rail seat 46, so that the clamping claws 47 on both sides release the clamping fixation on the outside of the reverse osmosis membrane cartridge 49. The upper and lower electric control joint tubes 45 shorten and stop docking with the upper and lower ends of the reverse osmosis membrane cartridge 49. The first electric telescopic rod 334, the second electric telescopic rod 338 and the clamping module 337 cooperate to move the reverse osmosis membrane cartridge 49 to the top position of the slot seat 331, and dock the bottom of the reverse osmosis membrane cartridge 49 with the bottom joint 311.

[0039] Step 8: The first motors 317 on both sides drive the rotating shaft 316 to rotate under the transmission of the bevel gear set 318 at the corresponding position, so that the rotating shaft 316 drives the first pulley 314 at the bottom to rotate, and the belt 324 moves circumferentially under the drive of the first pulley 314 at the bottom, and with the cooperation of the first pulley 314 at the top, the second pulleys 320 on the upper and lower sides, and the third pulley 323, drives the first connecting frame 319 and the second connecting frame 322 at the corresponding position to move upward or downward, and makes the internal telescopic ends of the first telescopic guide rail 313 and the second telescopic guide rail 321 rise and fall to the specified position, and then drives the top joint 326 to dock with the top of the reverse osmosis membrane cylinder 49 under the cooperation of the cross frame 325;

[0040] Step 9: The first pump body 35 pumps the purified water stored in the water storage tank 34 into the reverse osmosis membrane cartridge 49 through the internal pipeline of the extension tube 37 and the top joint 326, so that the purified water in the reverse osmosis membrane cartridge 49 passes downward in the opposite direction of the original filtered liquid for reverse flushing. The waste water after flushing enters the second pump body 39 through the bottom joint 311 and the solenoid valve 310, and is pumped by the second pump body 39 into the liquid collection tank 38 for storage;

[0041] Step 10: After the cleaning is completed, the first motor 317 rotates in the opposite direction to release the top joint 326 from the top of the reverse osmosis membrane cartridge 49. The first electric telescopic rod 334, the second electric telescopic rod 338 and the clamping module 337 cooperate to move the reverse osmosis membrane cartridge 49 to the inner position of the original clamping claw 47. The third electric telescopic rod 48 extends to drive the clamping claw 47 at the corresponding position to move inward to clamp and fix it. The upper and lower electric control joint pipes 45 extend to re-dock with the upper and lower ends of the reverse osmosis membrane cartridge 49. The three-way solenoid valves 44 at the corresponding positions on the upper and lower sides are opened to put the reverse osmosis membrane cartridge 49 into operation again.

[0042] Step 11: The strongly acidic cation exchange resin and the strongly basic anion exchange resin in the mixed bed ion exchanger inside the ion exchange device react with the remaining cations and anions in the water and remove them to obtain higher purity water;

[0043] Step 12: The water treated by the ion exchange device enters the microporous filtration device through a pipe. The ultrafiltration membrane inside the microporous filtration device filters the impurities remaining in the water. The filtered ultrapurified water flows out from the outlet of the microporous filtration device, becomes lithium bis(fluorosulfonyl)imide ultrapurified water, and is collected and stored centrally by an external terminal collection device.

[0044] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A lithium bis(fluorosulfonyl)imide ultrapurified water treatment device, characterized in that: include: Raw water pretreatment equipment, reverse osmosis equipment, ion exchange equipment, ultrafiltration equipment and microfiltration equipment; The raw water pretreatment device is internally provided with a mechanical filter, an activated carbon filter and a softener, the water inlet of the raw water pretreatment device is connected to an external raw water inlet pipe, the water outlet of the mechanical filter is connected to the water inlet of the activated carbon filter via a pipe, the water outlet of the activated carbon filter is connected to the water inlet of the softener via a pipe, the water outlet of the softener is connected to a reverse osmosis device via a pipe, the reverse osmosis device is connected to the water inlet of the ion exchange device via a pipe, the water outlet of the ion exchange device is connected to the water inlet of the ultrafiltration device via a pipe, the water outlet of the ion exchange device is connected to the water inlet of the microporous filtration device via a pipe, and the water outlet of the microporous filtration device is connected to an external terminal collection device via a pipe; The reverse osmosis device comprises: Charging storage compartment (1); A control box (2) is arranged on the left side of the charging storage cabin (1), and the control box (2) and the charging storage cabin (1) are electrically connected; A cleaning mechanism (3) is arranged outside the charging storage compartment (1), and the cleaning mechanism (3) can be stored inside the charging storage compartment (1); A reverse osmosis mechanism (4) is arranged outside the cleaning mechanism (3); The cleaning mechanism (3) comprises: A robot chassis (31) is located outside the charging storage compartment (1); A sub-control module (32) is arranged inside the robot chassis (31), the sub-control module (32) and the robot chassis (31) are electrically connected, and the sub-control module (32) and the control box (2) are remotely connected via a network; A visual module (33) is mounted on the front left of the top of the robot chassis (31) via a bracket, and the visual module (33) is electrically connected to the sub-control module (32); A water tank (34) is mounted on the middle portion of the rear side of the top end of the robot chassis (31); A first pump body (35) is installed on the left side of the top end of the water storage tank (34), the first pump body (35) is connected to the inner cavity of the water storage tank (34), and the first pump body (35) is electrically connected to the sub-control module (32); A mounting frame (36) fixedly mounted on the middle portion of the top end of the water storage tank (34); An extension pipe (37) is mounted on the rear side of the mounting frame (36), and the extension pipe (37) and the first pump body (35) are connected via a pipeline; A liquid collecting tank (38) mounted on the front side of the mounting frame (36); A second pump body (39) is installed on the right side of the top end of the water storage tank (34), the second pump body (39) and the liquid collecting tank (38) are connected via a pipeline, and the second pump body (39) and the sub-control module (32) are electrically connected; A solenoid valve (310) is installed at the front right of the top end of the water storage tank (34), the solenoid valve (310) and the second pump body (39) are connected via a pipeline, and the solenoid valve (310) and the sub-control module (32) are electrically connected; A bottom connector (311) is installed in the middle of the front side of the robot chassis (31), and the bottom connector (311) can be connected to the solenoid valve (310) through a pipeline.

2. A lithium bis(fluorosulfonyl)imide ultrapurified water treatment device according to claim 1, characterized in that: The water storage tank (34) can be pre-filled with pure water, and the first pump body (35) is controlled by the sub-control module (32) to pump the pure water in the water storage tank (34) into the extension tube (37).

3. A lithium bis(fluorosulfonyl)imide ultrapurified water treatment device according to claim 2, characterized in that: The cleaning mechanism (3) further comprises: A fixed frame (312), wherein the number of the fixed frames (312) is two, and the two fixed frames (312) are respectively installed on the left and right sides of the middle of the top of the robot chassis (31); a first telescopic guide rail (313), wherein the number of the first telescopic guide rails (313) is two, and the two first telescopic guide rails (313) are respectively installed on the front sides of the left and right fixed frames (312) in the up-down direction; The first pulleys (314) are provided in two groups, each group of the first pulleys (314) comprises two first pulleys (314), and the two groups of the first pulleys (314) are respectively installed at the upper and lower ends of the rear side of the fixed ends of the left and right first telescopic guide rails (313); A housing (315), wherein the number of the housings (315) is two, and the two housings (315) are respectively installed on the outsides of the left and right fixed frames (312); A rotating shaft (316), wherein the number of the rotating shafts (316) is two, and the two rotating shafts (316) are rotatably connected to the inner sides of the left and right housings (315) respectively through bearings, and the inner ends of the two rotating shafts (316) are respectively connected to the outer ends of the shaft centers of the left and right bottom first pulleys (314); A first motor (317), wherein the number of the first motors (317) is two, and the two first motors (317) are respectively installed on the rear sides of the left and right housings (315), and the rotating ends of the left and right first motors (317) extend into the inner side of the housing (315), and the first motors (317) are electrically connected to the sub-control module (32); bevel gear sets (318), the number of the bevel gear sets (318) is two, one side gear of the two bevel gear sets (318) is respectively mounted on the rotation of the left and right first motors (317), and the other side gear of the two bevel gear sets (318) is respectively mounted on the outside of the left and right rotating shafts (316); First connecting frames (319), the number of the first connecting frames (319) is two groups, the number of the first connecting frames (319) in each group is two, and the two groups of the first connecting frames (319) are respectively installed at the upper and lower ends of the front side of the telescopic end of the left and right first telescopic guide rails (313); The second pulleys (320) are in two groups, each group of the second pulleys (320) has two second pulleys (320), and the two groups of the second pulleys (320) are rotatably mounted on the outer sides of the left and right groups of the first connecting frames (319) respectively through pins; Second telescopic guide rails (321), the number of the second telescopic guide rails (321) is two, and the two second telescopic guide rails (321) are respectively installed in the front sides of the left and right sets of first connecting frames (319) in the up-down direction; A second connecting frame (322), the number of the second connecting frames (322) is two, and the two second connecting frames (322) are respectively installed at the front bottom of the telescopic end of the left and right second telescopic guide rails (321); A third pulley (323), wherein the number of the third pulleys (323) is two, and the two third pulleys (323) are rotatably mounted on the outer sides of the left and right second connecting frames (322) respectively through pins; Belts (324), the number of the belts (324) is two, and the two belts (324) are respectively circumferentially sleeved on the outer sides of the upper and lower first pulleys (314) and the second pulley (320) and the third pulley (323) on the left and right sides; A horizontal frame (325) is mounted on the top of the front side of the telescopic ends of the two left and right second telescopic guide rails (321) in the left-right direction; A top joint (326) is installed on the front side of the cross frame (325), and the top joint (326) can be connected to the extension pipe (37) through a pipeline.

4. A lithium bis(fluorosulfonyl)imide ultrapurified water treatment device according to claim 3, characterized in that: The cleaning mechanism (3) further comprises: A bottom plate (327) is fixedly mounted on the top of the robot chassis (31) and is located inside the left and right fixed frames (312); Support frames (328), the number of the support frames (328) is four, and the four support frames (328) are installed at the top four corners of the bottom plate (327); An annular disk (329) is mounted on the inner top of the four support frames (328); A rotating disk (330) is rotatably connected to the inner side of the annular disk (329) via a bearing; A slot seat (331), wherein the number of the slot seats (331) is two, and the two slot seats (331) are respectively embedded in the front and rear sides of the rotating disk (330); Insertion rods (332), the number of the insertion rods (332) is two, and the two insertion rods (332) are respectively inserted into the inner cavities of the two slot seats (331) in the up-down direction; A rotation module (333) is installed on the top of the base plate (327) and located below the inner side of the support frame (328), and the rotation module (333) is electrically connected to the sub-control module (32); A first electric telescopic rod (334) is mounted on the top of the rotating end of the third pulley (323), and the first electric telescopic rod (334) is electrically connected to the sub-control module (32); A slot frame (335) is arranged on top of the two insertion rods (332) along the front-back direction, and the telescopic end of the first electric telescopic rod (334) extends from the middle opening of the annular disk (329) to the upper surface of the annular disk (329) and is connected to the bottom of the slot frame (335); A telescopic frame (336) is inserted into the front side of the slot frame (335) along the front-to-back direction; A clamping module (337) is installed at the front end of the telescopic frame (336), and the clamping module (337) is electrically connected to the sub-control module (32); The second electric telescopic rod (338) is arranged on the inner side of the top end of the slot frame (335) along the front-to-back direction, the telescopic end of the second electric telescopic rod (338) is connected to the inner rear end of the telescopic frame (336), and the second electric telescopic rod (338) is electrically connected to the sub-control module (32).

5. A lithium bis(fluorosulfonyl)imide ultrapurified water treatment device according to claim 4, characterized in that: The reverse osmosis mechanism (4) comprises: A reverse osmosis mechanism housing (41) is mounted outside the charging storage compartment (1); A liquid inlet pipe (42) is provided at the inner bottom of the reverse osmosis mechanism housing (41), and the liquid inlet pipe (42) is connected to the water outlet of the softener; A liquid outlet pipe (43) is installed on the top of the reverse osmosis mechanism housing (41), and the liquid outlet pipe (43) is connected to the water inlet of the ion exchange device through a pipeline; Three-way solenoid valves (44), the number of the three-way solenoid valves (44) is two groups, the number of the three-way solenoid valves (44) in each group is two, the two groups of the three-way solenoid valves (44) are respectively installed on the outside of the water outlet of the liquid inlet pipe (42) and the liquid outlet pipe (43), and the three-way solenoid valves (44) are electrically connected to the control box (2); Electric control joint pipes (45), the number of the electric control joint pipes (45) is two groups, the number of the electric control joint pipes (45) in each group is two, one end of the two groups of the electric control joint pipes (45) is respectively installed on the inner ends of the two groups of three-way solenoid valves (44), and the electric control joint pipes (45) are electrically connected to the control box (2); Slide rail seats (46), the number of the slide rail seats (46) is two, and the two slide rail seats (46) are respectively installed at the left and right ends of the front side of the reverse osmosis mechanism housing (41) along the left and right directions; Clamping claws (47), the number of the clamping claws (47) is two groups, the number of the clamping claws (47) in each group is two, and the two groups of clamping claws (47) are respectively plugged into the left and right ends of the inner sides of the left and right slide rail seats (46); A third electric telescopic rod (48), the number of the third electric telescopic rod (48) is two groups, the number of the third electric telescopic rod (48) in each group is two, the two groups of the third electric telescopic rod (48) are respectively installed on the left and right ends of the outer sides of the left and right slide rail seats (46), the telescopic ends of the left and right groups of the third electric telescopic rod (48) extend into the inner side of the slide rail seat (46) and are fixedly connected to the outer sides of the two groups of clamping claws (47), and the third electric telescopic rod (48) is electrically connected to the control box (2); The reverse osmosis membrane cartridge (49) is provided in two pieces, and the two reverse osmosis membrane cartridges (49) are respectively clamped on the inner sides of the two groups of clamping claws (47) in the vertical direction.

6. A lithium bis(fluorosulfonyl)imide ultrapurified water treatment device according to claim 5, characterized in that: The upper and lower ends of the two reverse osmosis membrane cylinders (49) can be connected to the other ends of the two sets of electric control joint pipes (45) respectively.

7. A method for treating ultrapurified water using lithium bis(fluorosulfonyl)imide, applied to a device for treating ultrapurified water using lithium bis(fluorosulfonyl)imide as claimed in claim 6, characterized in that: The following steps are involved: Step 1: Raw water enters the mechanical filter inside the raw water pretreatment device through the water inlet pipe. Under pressure, the raw water flows into the mechanical filter from the top. Suspended matter in the raw water with a particle size larger than the pores of the filter medium in the mechanical filter is trapped inside the filter medium in the mechanical filter, achieving the purpose of preliminary removal of large particle impurities; Step 2: Raw water flows out from the bottom of the mechanical filter and enters the activated carbon filter through the pipe. Under pressure, the raw water slowly flows through the activated carbon layer in the activated carbon filter. The organic matter in the raw water is adsorbed on the surface and pores of the activated carbon layer, achieving the purpose of reducing the organic matter content and residual chlorine content; Step 3: The raw water flows out from the other end of the activated carbon filter and enters the softener through the pipe. Under pressure, the raw water passes through the ion exchange resin layer in the softener. The calcium and magnesium ions in the raw water undergo ion exchange reactions with the sodium ions in the resin, removing the calcium and magnesium ions to reduce the hardness of the water. Step 4: The water pre-treated by the raw water pre-treatment device is pressurized by a high-pressure pump and enters the interior of the liquid inlet pipe (42) through the high-pressure pipeline, and enters the interior of the reverse osmosis membrane cartridge (49) through the three-way solenoid valve (44) and the electric control joint pipe (45) at the corresponding position below. The water passes through the reverse osmosis membrane inside the reverse osmosis membrane cartridge (49) from bottom to top under the action of pressure to form purified water. The purified water flows out from the electric control joint pipe (45) and the three-way solenoid valve (44) at the top of the reverse osmosis membrane cartridge (49) to the interior of the liquid outlet pipe (43), and enters the interior of the ion exchange device through the liquid outlet pipe (43); Step 5: After the osmotic membrane inside the reverse osmosis membrane cartridge (49) has been used for a long time, the staff controls the control box (2) to remotely start the sub-control module (32). The pre-programmed program inside the sub-control module (32) controls the robot chassis (31) to move out of the charging storage compartment (1) and to the right side of the reverse osmosis mechanism (4). The staff controls the three-way solenoid valve (44) at the corresponding position to close and cut off the flow of liquid inside the electric control connector pipe (45) at the corresponding position, and keeps the reverse osmosis membrane cartridge (49) at another position working normally. Step 6: The rotation module (333) drives the first electric telescopic rod (334) to rotate, and drives the slot frame (335) to rotate to a specified direction position under the cooperation of the first electric telescopic rod (334). The first electric telescopic rod (334) drives the slot frame (335) to move up and down, and under the limiting action of the insertion rod (332), the slot frame (335) is lifted and lowered to a specified height position, so that the clamping module (337) is aligned with the reverse osmosis membrane cylinder (49) at the specified position. The second electric telescopic rod (338) drives the telescopic frame (336) to extend to a specified length position in the inner cavity of the slot frame (335), so that the clamping module (337) moves to the outer side of the reverse osmosis membrane cylinder (49), and the clamping module (337) clamps and grabs the outside of the reverse osmosis membrane cylinder (49); Step 7: The third electric telescopic rod (48) shortens and drives the clamping claw (47) at the corresponding position to move outward inside the slide rail seat (46), so that the clamping claws (47) on both sides release the clamping fixation on the outside of the reverse osmosis membrane cylinder (49), and the upper and lower electric control joint tubes (45) shorten and stop docking with the upper and lower ends of the reverse osmosis membrane cylinder (49). The first electric telescopic rod (334), the second electric telescopic rod (338) and the clamping module (337) cooperate to move the reverse osmosis membrane cylinder (49) to the top position of the slot seat (331), and dock the bottom of the reverse osmosis membrane cylinder (49) with the bottom joint (311); Step eight: the first motors (317) on both sides drive the rotating shaft (316) to rotate under the transmission of the bevel gear set (318) at the corresponding position, so that the rotating shaft (316) drives the first pulley (314) at the bottom to rotate, and the belt (324) moves circumferentially under the drive of the first pulley (314) at the bottom, and drives the first connecting frame (319) and the second connecting frame (322) at the corresponding position to move upward or downward under the cooperation of the first pulley (314) at the top, the second pulleys (320) on the upper and lower sides, and the third pulley (323), and makes the internal telescopic ends of the first telescopic guide rail (313) and the second telescopic guide rail (321) rise and fall to the specified position, and then drives the top joint (326) to dock with the top of the reverse osmosis membrane cylinder (49) under the cooperation of the cross frame (325); Step nine: The first pump body (35) pumps the purified water stored in the water storage tank (34) into the reverse osmosis membrane cartridge (49) through the internal pipeline of the extension tube (37) and the top joint (326), so that the purified water in the reverse osmosis membrane cartridge (49) and the original filtered liquid pass through downward in the opposite direction for reverse flushing. The waste water after flushing enters the second pump body (39) through the bottom joint (311) and the solenoid valve (310), and is pumped into the liquid collecting tank (38) by the second pump body (39) for storage; Step 10: After the cleaning is completed, the first motor (317) rotates in the reverse direction to release the top joint (326) from the top docking state with the reverse osmosis membrane cylinder (49), and the first electric telescopic rod (334), the second electric telescopic rod (338) and the clamping module (337) cooperate to move the reverse osmosis membrane cylinder (49) to the inner position of the original clamping claw (47), and the third electric telescopic rod (48) extends to drive the clamping claw (47) at the corresponding position to move inward to clamp and fix it, and the upper and lower electric control joint pipes (45) are extended to re-dock with the upper and lower ends of the reverse osmosis membrane cylinder (49), and the three-way solenoid valves (44) at the corresponding positions on the upper and lower sides are opened to make the reverse osmosis membrane cylinder (49) work again; Step 11: The strongly acidic cation exchange resin and the strongly basic anion exchange resin in the mixed bed ion exchanger inside the ion exchange device react with the remaining cations and anions in the water and remove them to obtain higher purity water; Step 12: The water treated by the ion exchange device enters the microporous filtration device through a pipe. The ultrafiltration membrane inside the microporous filtration device filters the impurities remaining in the water. The filtered ultrapurified water flows out from the outlet of the microporous filtration device, becomes lithium bis(fluorosulfonyl)imide ultrapurified water, and is collected and stored centrally by an external terminal collection device.

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