A pure water manufacturing apparatus reverse osmosis device

Abstract

The application relates to the technical field of reverse osmosis devices, and relates to a pure water manufacturing equipment reverse osmosis device, which comprises a rack, a reaction cylinder is arranged at the back of the rack, a first water pipe is fixedly and communicatively connected to the reaction cylinder, a filter cylinder is fixedly and communicatively connected to one end of the first water pipe, a conveying pipe is fixedly and communicatively connected to one end of the filter cylinder, a conveying pump is fixedly and communicatively connected to one end of the conveying pipe, a second water pipe is fixedly and communicatively connected to one end of the conveying pump, a second shunt pipe is fixedly and communicatively connected to the second water pipe, and a plurality of reverse osmosis mechanisms are fixedly and communicatively connected to the second shunt pipe. The R0 membrane assembly and the hydraulic rotating assembly are rotatably arranged and used in cooperation. Under the impact of water flow, the R0 membrane assembly itself slowly rotates under the impact, the high-pressure raw water forms a rotational flow turbulent flow, the rotational flow generates a continuous shearing force, the membrane bottom surface is continuously scoured, the static concentrated water boundary layer is broken, the salt and colloid are prevented from staying on the membrane surface, the impurities adhered to the membrane surface are reduced, and the blocking probability is reduced.

Description

Technical Field

[0001] This invention belongs to the field of reverse osmosis device technology, specifically relating to a reverse osmosis device for pure water production equipment. Background Technology

[0002] Reverse osmosis (RO) units in pure water production equipment are currently the core equipment in high-purity water preparation, brackish water desalination, and wastewater treatment processes. Utilizing membrane separation technology, RO separates impurities from pure water under pressure, producing extremely clear and pure water. Relying on the sieving and ion-retention properties of the semi-permeable RO membrane, it removes impurities such as sediment, colloids, heavy metal ions, and microorganisms from the raw water. It is widely used in food, electronics, pharmaceutical, and industrial pure water production applications. However, existing reverse osmosis units in pure water production equipment have the following problems: During long-term use, existing reverse osmosis membranes are prone to accumulating a large amount of impurities on their outer walls, causing clogging. Backwash water is needed to flush and clear the blockage, but it is difficult to completely remove impurities from the surface of the reverse osmosis membrane using only backwash water. Furthermore, the water flow inside the reverse osmosis membrane housing is stagnant and laminar, making it easy for impurities to adhere to the membrane surface. The raw water pretreatment is simple, relying only on a simple pre-filter without a chemical reaction premixing unit. Calcium and magnesium ions, residual chlorine, and colloids in the water can easily enter the RO membrane directly. Over long-term operation, carbonate scale and biofilm can easily form on the membrane surface, rapidly reducing filtration efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a reverse osmosis device for pure water production that has a simple structure and a reasonable design in order to solve the above-mentioned problems.

[0004] The present invention achieves the above objectives through the following technical solutions: A reverse osmosis device for pure water production includes a frame, a reaction cylinder is arranged at the rear of the frame, a first water supply pipe is fixedly connected to the reaction cylinder, a filter cylinder is fixedly connected to one end of the first water supply pipe, a delivery pipe is fixedly connected to one end of the filter cylinder, a delivery pump is fixedly connected to one end of the delivery pipe, a second water supply pipe is fixedly connected to one end of the delivery pump, a second branch pipe is fixedly connected to the second water supply pipe, a plurality of reverse osmosis mechanisms are evenly fixedly connected to the second branch pipe, the tops of the plurality of reverse osmosis mechanisms are all fixedly connected to the first branch pipe, an outlet pipe is fixedly connected to the first branch pipe, a product water pressure transmitter and a turbidity sensor are fixedly connected to the outlet pipe, and a chemical dosing backwashing mechanism is arranged on the frame; A controller is installed on the top right side of the frame, and the product water pressure transmitter and turbidity sensor are electrically connected to the controller. The reverse osmosis mechanism includes a central sleeve fixedly connected to the frame by clamps. A drain end cap is provided at the top of the central sleeve, and an inlet end cap is provided at the bottom of the central sleeve. A hydraulic rotation component is provided inside the inlet end cap, and an RO membrane component is provided inside the drain end cap.

[0005] Preferably, a water inlet pipe is fixedly connected to the other side of the top of the reaction cylinder, and the end of the water inlet pipe away from the reaction cylinder is fixedly connected to the raw water storage tank. A stirring mechanism is provided inside the reaction cylinder.

[0006] Preferably, the dosing backflushing mechanism includes a storage cylinder fixedly installed on one side corner of the top of the frame, a second dosing pipe fixedly connected to one side of the top of the storage cylinder, a suction pump fixedly installed at the center of the top of the storage cylinder, a suction pipe fixedly connected to the suction end of the suction pump, and the bottom of the suction pipe located inside the storage cylinder.

[0007] Preferably, the output end of the suction pump is fixedly connected to a first dosing pipe, and the end of the first dosing pipe away from the suction pump is fixedly connected to a backflush pipe. One end of the backflush pipe is connected to the output end of the backwash water pump, and the other end of the backflush pipe is fixedly connected to the outlet pipe. A switch is fixedly installed on the outlet pipe, and the connection between the backflush pipe and the outlet pipe is located above the switch.

[0008] Preferably, the end of the No. 1 water supply pipe away from the reaction cylinder is fixedly connected to the bottom of the filter cylinder, the bottom of the other side of the filter cylinder is fixedly connected to the delivery pipe, and a filter screen is provided inside the filter cylinder.

[0009] Preferably, the top of the drain end cap is fixedly connected to a first fixed pipe, the top of the first fixed pipe is fixedly connected to the bottom of the first diversion pipe, and the bottom of the inlet end cap is fixedly connected to a second fixed pipe, the bottom of the second fixed pipe is fixedly connected to the second diversion pipe.

[0010] Preferably, the RO membrane assembly includes a fixing ring that is detachably and fixedly installed on the top surface inside the drain end cover. A limiting ring is fixedly installed on the inner wall of the fixing ring. The RO membrane body is rotatably installed on the fixing ring. A limiting groove that is slidably connected to the limiting ring is opened on the outside of the RO membrane body. The top of the RO membrane body is rotatably connected to the top surface of the inner wall of the drain end cover. The RO membrane body is located inside the middle sleeve.

[0011] Preferably, a fixing sleeve is fixedly sleeved at the top of the central hole of the RO membrane body, and several arc-shaped fan blades are fixedly installed on the inner wall of the fixing sleeve. The fixing ring has an installation hole on its edge, and the screw passes through the installation hole and is threaded onto the drain end cover.

[0012] Preferably, the hydraulic rotation assembly includes a fixed base fixedly installed inside the water inlet end cover, the fixed base being fixedly connected to a second fixed pipe, a plurality of one-way air inlet valves being fixedly installed on the second fixed pipe, a rotating cylinder being sealed and rotatably connected to the top of the fixed base, a through hole communicating with the inner wall of the rotating cylinder being opened on the top of the fixed base, a fixed shaft being fixedly installed at the center of the top inside the rotating cylinder, a plurality of suction fan blades being fixedly installed outside the fixed shaft, and a drain pipe being fixedly connected to the side walls of multiple water inlet end covers.

[0013] Preferably, the rotating cylinder is externally connected to several self-rotating nozzles, and several stirring blades are uniformly fixedly installed on the top of the rotating cylinder.

[0014] The beneficial effects of this invention are as follows: 1. Unlike existing technologies, this invention features a two-stage pretreatment structure consisting of a reaction chamber and a filter chamber. The stirring mechanism inside the reaction chamber can fully mix and react the raw water with scale inhibitors and flocculants, allowing calcium and magnesium ions and colloidal impurities in the water to precipitate in advance. Large suspended particles are then trapped by the filter screen in the filter chamber, significantly reducing the fouling load on the RO membrane and extending its service life.

[0015] 2. Unlike existing technologies, this invention utilizes a combination of a rotatable RO membrane module and a hydraulic rotation module. Under the impact of water flow, a swirling influent is formed, and the RO membrane module itself rotates slowly under the impact. The high-pressure raw water forms a swirling turbulent flow, which generates continuous shear force, continuously scouring the bottom surface of the membrane, breaking the static concentrate boundary layer, preventing salts and colloids from remaining on the membrane surface, reducing impurities attached to the membrane surface, and lowering the probability of clogging.

[0016] 3. Unlike existing technologies, this invention simultaneously drives the rotation of the suction fan blades during the rotation of the hydraulic rotating component. Air is drawn in through a one-way air inlet valve, and microbubbles enter the membrane shell with the high-pressure water. Under the agitation of the self-rotating nozzle and the stirring fan blades, a gas-liquid two-phase swirling flow is formed, which continuously washes the concentrate side surface of the RO membrane, breaks the high-concentration solute boundary layer on the membrane surface, and the shear force brought by the bubbles can continuously remove the retained impurities.

[0017] 4. Unlike existing technologies, this invention, through the setting of a chemical dosing backflushing mechanism and an RO membrane module, simultaneously drives the RO membrane module to rotate slowly during the chemical dosing backflushing mechanism for acid or alkali washing. The clean water rinsing causes impurities to be peeled off from the membrane body, and the centrifugal force of rotation further increases the peeling effect, thereby increasing the backflushing effect and reducing the maintenance frequency. Attached Figure Description

[0018] Figure 1 This is a three-dimensional first-view schematic diagram of the overall structure of the present invention; Figure 2 This is a three-dimensional second-view schematic diagram of the overall structure of the present invention; Figure 3This is a perspective view of the dosing backflushing mechanism, reverse osmosis mechanism, reaction cylinder, and filter cylinder of the present invention; Figure 4 This is the invention Figure 3 Enlarged view of region A in the middle; Figure 5 This is a perspective view of the chemical dosing backflushing mechanism, reverse osmosis mechanism, water outlet pipe, and water drain pipe of the present invention. Figure 6 This is a schematic diagram of the reverse osmosis mechanism of the present invention; Figure 7 This is a partial cross-sectional view of the reverse osmosis mechanism of the present invention; Figure 8 This is an exploded view of the reverse osmosis mechanism of the present invention; Figure 9 This is the invention Figure 8 Enlarged view of region B in the middle; Figure 10 This is a perspective view of the hydraulic rotation component of the present invention; Figure 11 This is a partial cross-sectional view of the hydraulic rotation component of the present invention.

[0019] In the diagram: 1. Frame; 2. Chemical dosing and backflushing mechanism; 21. Storage tank; 22. Backflushing pipe; 23. First chemical dosing pipe; 24. Suction pump; 25. Suction pipe; 3. First water supply pipe; 4. Reaction tank; 5. Inlet pipe; 6. Reverse osmosis mechanism; 61. First fixed pipe; 62. Drain end cap; 63. Middle sleeve; 64. Second fixed pipe; 65. RO membrane module; 651. RO membrane body; 652. Fixed sleeve; 653. Arc-shaped fan blade; 654. Mounting hole; 655. Fixing ring; 656. Limiting ring; 657. Limiting... 66. Slot; 661. Hydraulic rotation assembly; 662. Fixed base; 663. Rotating cylinder; 664. Agitator blade; 665. Self-rotating nozzle; 666. Suction blade; 667. Fixed shaft; 68. Water inlet end cover; 69. One-way air inlet valve; 7. Controller; 8. Second dosing pipe; 9. Transfer pump; 10. Filter cartridge; 11. Transfer pipe; 12. Second water supply pipe; 13. Water outlet pipe; 14. First branch pipe; 15. Second branch pipe; 16. Drain pipe; 17. Product water pressure transmitter; 18. Turbidity sensor; 19. Switch. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0021] Example: Please refer to Figure 1 , Figure 2, Figure 3 and Figure 4 A reverse osmosis device for pure water production includes a frame 1, which is an integrated support frame for the entire pure water reverse osmosis device. The frame 1 is welded from thickened anti-corrosion steel. A reaction cylinder 4 is installed at the rear of the frame 1. The reaction cylinder 4 is made of acid and alkali resistant PE anti-corrosion material. Multiple pipes are fixedly installed on the top of the reaction cylinder 4, including a first water supply pipe 3, an inlet pipe 5, and a third chemical dosing pipe (not shown in the figure). The third chemical dosing pipe is connected to a pretreatment reagent tank for adding flocculants and scale inhibitors into the reaction cylinder 4 to pre-complex calcium and magnesium ions in the water, generating settleable flocs. A drain pipe is fixedly connected to the bottom rear of the reaction cylinder 4, and a valve is fixedly installed on the drain pipe. One end of the first water supply pipe 3 is fixedly connected to a filter cylinder 10, which is used to transport the wastewater after sedimentation reaction to the filter cylinder 10. In the filter cylinder 10, one end of the filter cylinder 10 is fixedly connected to the delivery pipe 11, one end of the delivery pipe 11 is fixedly connected to the delivery pump 9, one end of the delivery pump 9 is fixedly connected to the second water delivery pipe 12, the second water delivery pipe 12 is fixedly connected to the second branch pipe 15, several reverse osmosis mechanisms 6 are evenly fixedly connected to the second branch pipe 15, the top of the multiple reverse osmosis mechanisms 6 is fixedly connected to the first branch pipe 14, the first branch pipe 14 is fixedly connected to the outlet pipe 13, the outlet pipe 13 is the total pure water output pipeline of the whole machine, the outlet pipe 13 is fixedly connected to the product water pressure transmitter 17 and the turbidity sensor 18, the frame 1 is equipped with a chemical dosing backwash mechanism 2, the top right side of the frame 1 is equipped with a controller 7, the product water pressure transmitter 17 and the turbidity sensor 18 are both electrically connected to the controller 7.

[0022] The permeate pressure transmitter 17 collects the internal water pressure of the permeate pipe 13 in real time and transmits the pressure analog signal to the controller 7. When the surface of the reverse osmosis unit 6 is fouled and the water permeability decreases, the permeate pressure continues to decrease. The controller 7 determines membrane fouling based on the preset lower pressure threshold and starts the backwashing program. The turbidity sensor 18 detects the turbidity of the pure water in real time. An increase in turbidity value indicates that the osmosis equipment is damaged or that a large amount of colloid has penetrated the membrane surface, and the water quality does not meet the standards. After receiving the signal of exceeding the standard, the controller 7 automatically starts the chemical backwashing. All pipelines, pumps, and membrane components can be locked on the frame 1 by brackets and clamps to realize the integration of the equipment into one unit, which is convenient for overall hoisting and transportation and on-site installation. At the same time, it organizes the pipeline layout and reduces pipeline clutter.

[0023] Please see Figure 2 and Figure 3A water inlet pipe 5 is fixedly connected to the other side of the top of the reaction cylinder 4. The end of the water inlet pipe 5 away from the reaction cylinder 4 is fixedly connected to the raw water storage tank. A stirring mechanism (not shown in the figure) is set inside the reaction cylinder 4. The stirring mechanism is existing technology and consists of a drive motor and multiple layers of stirring paddles. After starting, it stirs the raw water and the reagent at high speed, so that the reagent and the water are fully mixed and reacted, causing colloids and heavy metal ions to form large flocs and precipitate. The end of the No. 1 water supply pipe 3 away from the reaction cylinder 4 is fixedly connected to the bottom of the filter cylinder 10. The bottom of the other side of the filter cylinder 10 is fixedly connected to the delivery pipe 11. The filter cylinder 10 is filled with multi-stage stainless steel filter screens (not shown in the figure) in layers. The filter screen pore size is gradually reduced to intercept the flocs, silt, and hard large particles of impurities generated by the reaction.

[0024] Please see Figure 1 , Figure 5 , Figure 6 and Figure 7 The reverse osmosis unit 6 includes a central sleeve 63 fixedly connected to the frame 1 by clamps. A drain end cap 62 is provided at the top of the central sleeve 63, and an inlet end cap 67 is provided at the bottom of the central sleeve 63. A hydraulic rotation component 66 is provided inside the inlet end cap 67. An RO membrane component 65 is provided inside the drain end cap 62. The RO membrane component 65 is the core component for pure water separation. A first fixed pipe 61 is fixedly connected to the top of the drain end cap 62. The top of the first fixed pipe 61 is fixedly connected to a first branch pipe 14. A second fixed pipe 64 is fixedly connected to the bottom of the inlet end cap 67. The bottom of the second fixed pipe 64 is fixedly connected to a second branch pipe 15. A valve (not shown in the figure) is installed on the second branch pipe 15.

[0025] Please see Figure 6 , Figure 7 , Figure 8 and Figure 9 The RO membrane module 65 includes a fixing ring 655 that is detachably and fixedly installed on the top surface inside the drain end cap 62. A limiting ring 656 is fixedly installed on the inner wall of the fixing ring 655. An RO membrane body 651 is rotatably installed on the fixing ring 655. The RO membrane body 651 is a spiral wound reverse osmosis membrane core. The outer side is the raw water and concentrate flow surface, and the central through hole collects filtered pure water. A limiting groove 657 is opened on the outside of the RO membrane body 651, which is slidably connected to the limiting ring 656. The limiting groove 657 is an annular groove that connects with the limiting ring 656. To prevent the RO membrane body 651 from moving up and down or left and right, it can only rotate slowly. The top of the RO membrane body 651 is rotatably connected to the top surface of the inner wall of the drain end cover 62. The RO membrane body 651 is located inside the middle sleeve 63. A fixing sleeve 652 is fixedly sleeved on the top of the center hole of the RO membrane body 651. Several arc-shaped fan blades 653 are fixedly installed on the inner wall of the fixing sleeve 652. The edge of the fixing ring 655 has an installation hole 654. The screw passes through the installation hole 654 and is threaded onto the drain end cover 62.

[0026] Please see Figure 7 , Figure 8 , Figure 10 and Figure 11 The hydraulic rotation component 66 includes a fixed base 661 fixedly installed inside the water inlet end cover 67. The fixed base 661 is fixedly connected to the second fixed pipe 64. Several one-way air inlet valves 68 are fixedly installed on the second fixed pipe 64. The top of the fixed base 661 is sealed and rotatably connected to the rotating cylinder 662. The top of the fixed base 661 has a through hole communicating with the inside of the rotating cylinder 662. A fixed shaft 666 is fixedly installed at the center of the top inside the rotating cylinder 662. Several suction fan blades 665 are fixedly installed outside the fixed shaft 666. The side walls of multiple water inlet end covers 67 are fixedly connected to a drain pipe 16. A valve (not shown in the figure) is provided on the drain pipe 16. Several self-rotating nozzles 664 are fixedly connected to the outside of the rotating cylinder 662. Several stirring fan blades 663 are evenly fixedly installed on the top of the rotating cylinder 662.

[0027] During reverse osmosis filtration, the valve on drain pipe 16 is closed. Wastewater, after sedimentation following chemical addition in reaction chamber 4, is filtered by filter chamber 10 and then transported to water supply pipe 12. It is then diverted through branch pipe 15 and enters fixed pipe 64, subsequently flowing into fixed base 661 and then into rotating drum 662. Under the impact of high-pressure water flow, rotating drum 662 and its self-rotating nozzle 664 automatically rotate, creating a self-rotating turbulent flow. This turbulent flow sprays onto the RO membrane body 651, while the high-pressure raw water forms a swirling turbulent flow. This swirling flow generates continuous shear force, breaking the static concentrate boundary layer and preventing salts and colloids from remaining on the surface of the RO membrane body 651, reducing impurities and the probability of clogging. Furthermore, the high-speed water flow, after passing through one-way air inlet valve 68, creates an internal and external pressure difference, allowing one-way air intake. The gas enters the fixed seat 661 and the rotating cylinder 662, forming a gas-liquid mixture. The rotation of the suction fan blade 665 ensures the uniform mixing of gas and water. The gas-liquid mixture impacts the RO membrane body 651, creating irregular disturbances, which further reduces the probability of impurities adhering to the RO membrane body 651. After the wastewater passes through the RO membrane body 651, the filtered pure water is collected from the through hole in the center of the RO membrane body 651. Then, the filtered pure water is discharged from the drain end cover 62 and the first fixed pipe 61 on it, and then enters the outlet pipe 13 from the first branch pipe 14 and is discharged. The discharged pure water is monitored in real time by the product water pressure transmitter 17, which collects the water pressure inside the product water pipe 13. The turbidity sensor 18 detects the turbidity of the pure water in real time. The detection data is transmitted to the controller 7, which performs real-time analysis. If the water quality does not meet the standard, the controller 7 automatically starts the chemical backwashing after receiving the excessive signal, forming a negative feedback control of water quality.

[0028] Please see Figure 3 and Figure 4The backflushing mechanism 2 includes a storage tank 21 fixedly installed on one side corner of the top of the frame 1. The storage tank 21 is a sealed anti-corrosion agent storage tank used to store various membrane cleaning agents. A second dosing pipe 8 is fixedly connected to one side of the top of the storage tank 21. The second dosing pipe 8 is connected to an external agent supply tank, allowing cleaning agents to be added to the storage tank 21 without disassembling the storage tank. A suction pump 24 is fixedly installed at the center of the top of the storage tank 21, and a suction pipe is fixedly connected to the suction end of the suction pump 24. 25. The bottom of the suction pipe 25 is located inside the storage cylinder 21. The output end of the suction pump 24 is fixedly connected to the first dosing pipe 23. The end of the first dosing pipe 23 away from the suction pump 24 is fixedly connected to the backflush pipe 22. One end of the backflush pipe 22 is connected to the output end of the backwash water pump (not shown in the figure). The other end of the backflush pipe 22 is fixedly connected to the outlet pipe 13. A switch 19 is fixedly installed on the outlet pipe 13. The connection between the backflush pipe 22 and the outlet pipe 13 is located above the switch 19.

[0029] During use, when monitoring and analysis indicate that backwashing is necessary, switch 19 is turned off to cut off the water flow from outlet pipe 13. Simultaneously, the valve on the second diversion pipe 15 is closed to prevent backflow of backwash water into the second water supply pipe 12, ensuring that the wastewater after backwashing can be discharged from drain pipe 16. At this time, the backwash water pump on backwash pipe 22 draws water in, and the flushing water enters outlet pipe 13 from backwash pipe 22, then enters first diversion pipe 14 from outlet pipe 13, and subsequently enters RO membrane module 65 from first fixed pipe 61, thus achieving backwashing. During the backwashing process, the water flow impacts the arc-shaped fan blades 653 from top to bottom, causing the fixed sleeve 652 and the RO membrane body 651 on it to rotate. The flushing water flows from the inside to the outside of the RO membrane body 651. When the RO membrane body 651 rotates, the centrifugal force further accelerates the removal of impurities, improving the backwashing efficiency. The wastewater from the backwashing is discharged from the drain pipe 16. During the backwashing process, the suction pump 24 delivers the cleaning agent inside the storage tank 21 to the backwash pipe 22 through the first dosing pipe 23, further improving the cleaning efficiency through the agent.

[0030] It should be noted that, in the operation of this reverse osmosis pure water production equipment, the raw water to be processed in the raw water storage tank is first transported to the reaction tank 4 through the inlet pipe 5. Scale inhibitors and flocculants are added to the reaction tank 4 through the dosing pipe No. 3. The built-in stirring mechanism of the reaction tank 4 is then activated, and the agents react fully with the raw water at high speed. Calcium and magnesium ions and colloidal flocculation in the water form settleable flocs. After the flocs at the bottom are discharged through the drain pipe, the transfer pump 9 is activated to suction them out. The pretreated water at the bottom of the reaction tank 4 is then suctioned out using negative pressure. The water is transported through the No. 1 water supply pipe 3 to the filter cartridge 10 for pre-filtration. Then, it is transported to the No. 2 distribution pipe 15 to evenly distribute the high-pressure raw water to the No. 2 fixed pipe 64 at the bottom of each reverse osmosis unit 6. A one-way air inlet valve 68 on the No. 2 fixed pipe 64 draws in a small amount of outside air. The air mixes with the high-pressure raw water, forming a gas-liquid two-phase mixed flow. This flow is agitated by the hydraulic rotation component 66, creating a rotating gas-liquid two-phase turbulent flow that continuously washes the RO membrane body 651, reducing impurities on the RO membrane body. The pure water accumulated on the R0 membrane body 651 gathers in the central through hole of the R0 membrane body 651 and flows upward, impacting the arc-shaped fan blades 653 on the inner wall of the fixed sleeve 652, generating circumferential thrust, driving the R0 membrane body 651 to slowly rotate along the limiting ring 656. The outer wall of the membrane is uniformly flushed by the water flow. After filtration, the raw water remaining in the middle sleeve 63 flows from the side wall of each inlet end cap 67 into the drain pipe 16 for unified discharge. The pure water produced by a single R0 membrane body 651 flows through the first fixed pipe 61. The purified water from the first diversion pipe 14 is collected and discharged into the outlet pipe 13 after being collected from the pure water of the reverse osmosis unit 6. The product water pressure transmitter 17 collects the product water pressure in the pipeline in real time, and the turbidity sensor 18 detects the turbidity of the pure water in real time. Simultaneously, the water quality electrical signal is transmitted to the controller 7. The controller 7 compares the collected data with the internal preset standard thresholds (turbidity upper limit, product water pressure lower limit) in real time, and continuously judges the filtration and clogging status of the R0 membrane body 651. When a clogging status is detected, the chemical dosing backwashing mechanism 2 is started for backwashing.

[0031] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A reverse osmosis device for pure water production, comprising a frame (1), characterized in that: A reaction cylinder (4) is provided on the rear side of the frame (1). A first water supply pipe (3) is fixedly connected to the reaction cylinder (4). A filter cylinder (10) is fixedly connected to one end of the first water supply pipe (3). A conveying pipe (11) is fixedly connected to one end of the filter cylinder (10). A conveying pump (9) is fixedly connected to one end of the conveying pipe (11). A second water supply pipe (12) is fixedly connected to one end of the conveying pump (9). A second diversion pipe (15) is fixedly connected to the second water supply pipe (12). (15) Several reverse osmosis mechanisms (6) are uniformly and fixedly connected on the top. The top of the multiple reverse osmosis mechanisms (6) are all fixedly connected to a No. 1 diversion pipe (14). The No. 1 diversion pipe (14) is fixedly connected to an outlet pipe (13). The outlet pipe (13) is fixedly connected to a product water pressure transmitter (17) and a turbidity sensor (18). A dosing backflushing mechanism (2) is set on the frame (1). The No. 3 dosing pipe for adding reaction reagents is fixedly connected to the rear side of the top of the reaction cylinder (4). A controller (7) is provided on the top right side of the frame (1). The product water pressure transmitter (17) and the turbidity sensor (18) are both electrically connected to the controller (7). The reverse osmosis mechanism (6) includes a central sleeve (63) fixedly connected to the frame (1) by clamps. A drain end cap (62) is provided at the top of the central sleeve (63), and an inlet end cap (67) is provided at the bottom of the central sleeve (63). A hydraulic rotation component (66) is provided inside the inlet end cap (67), and an RO membrane component (65) is provided inside the drain end cap (62).

2. The reverse osmosis device for pure water production equipment according to claim 1, characterized in that: The other side of the top of the reaction cylinder (4) is fixedly connected to a water inlet pipe (5), and the end of the water inlet pipe (5) away from the reaction cylinder (4) is fixedly connected to the raw water storage tank. A stirring mechanism is provided inside the reaction cylinder (4).

3. The reverse osmosis device for pure water production equipment according to claim 1, characterized in that: The dosing backflushing mechanism (2) includes a storage cylinder (21) fixedly installed on one side corner of the top of the frame (1). A second dosing pipe (8) is fixedly connected to one side of the top of the storage cylinder (21). A suction pump (24) is fixedly installed at the center of the top of the storage cylinder (21). A suction pipe (25) is fixedly connected to the suction end of the suction pump (24). The bottom of the suction pipe (25) is located inside the storage cylinder (21).

4. The reverse osmosis device for pure water production equipment according to claim 3, characterized in that: The output end of the suction pump (24) is fixedly connected to a first dosing pipe (23). The end of the first dosing pipe (23) away from the suction pump (24) is fixedly connected to a backflush pipe (22). One end of the backflush pipe (22) is connected to the output end of the backflush water pump, and the other end of the backflush pipe (22) is fixedly connected to the outlet pipe (13). A switch (19) is fixedly installed on the outlet pipe (13), and the connection between the backflush pipe (22) and the outlet pipe (13) is located above the switch (19).

5. The reverse osmosis device for pure water production equipment according to claim 1, characterized in that: The end of the No. 1 water supply pipe (3) away from the reaction cylinder (4) is fixedly connected to the bottom of the filter cylinder (10), and the bottom of the other side of the filter cylinder (10) is fixedly connected to the delivery pipe (11). A filter screen is provided inside the filter cylinder (10).

6. The reverse osmosis device for pure water production equipment according to claim 1, characterized in that: The top of the drain end cap (62) is fixedly connected to a first fixed pipe (61), the top of the first fixed pipe (61) is fixedly connected to the bottom of the first diversion pipe (14), and the bottom of the inlet end cap (67) is fixedly connected to a second fixed pipe (64), the bottom of the second fixed pipe (64) is fixedly connected to the second diversion pipe (15).

7. The reverse osmosis device for pure water production equipment according to claim 6, characterized in that: The RO membrane assembly (65) includes a fixing ring (655) that is detachably and fixedly installed on the top surface inside the drain end cap (62). A limiting ring (656) is fixedly installed on the inner wall of the fixing ring (655). An RO membrane body (651) is rotatably installed on the fixing ring (655). A limiting groove (657) that is slidably connected to the limiting ring (656) is opened on the outside of the RO membrane body (651). The top of the RO membrane body (651) is rotatably connected to the top surface of the inner wall of the drain end cap (62). The RO membrane body (651) is located inside the middle sleeve (63).

8. The reverse osmosis device for pure water production equipment according to claim 7, characterized in that: A fixing sleeve (652) is fixedly sleeved on the top of the center hole of the RO membrane body (651). Several arc-shaped fan blades (653) are fixedly installed on the inner wall of the fixing sleeve (652). An installation hole (654) is opened on the edge of the fixing ring (655). The screw passes through the installation hole (654) and is threaded onto the drain end cover (62).

9. The reverse osmosis device for pure water production equipment according to claim 1, characterized in that: The hydraulic rotation assembly (66) includes a fixed seat (661) fixedly installed inside the water inlet end cover (67). The fixed seat (661) is fixedly connected to the second fixed pipe (64). Several one-way air inlet valves (68) are fixedly installed on the second fixed pipe (64). The top of the fixed seat (661) is sealed and rotatably connected to the rotating cylinder (662). The top of the fixed seat (661) has a through hole that communicates with the inner wall of the rotating cylinder (662). A fixed shaft (666) is fixedly installed at the top center inside the rotating cylinder (662). Several suction fan blades (665) are fixedly installed outside the fixed shaft (666). The side walls of multiple water inlet end covers (67) are fixedly connected to a drain pipe (16).

10. A reverse osmosis device for pure water production equipment according to claim 9, characterized in that: The rotating cylinder (662) is externally connected to several self-rotating nozzles (664), and several stirring blades (663) are uniformly fixedly installed on the top of the rotating cylinder (662).

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