An automatic device suitable for use in a CCRO water treatment system

Abstract

The utility model discloses an automatic device suitable for CCRO water treatment system, specifically relates to water treatment technical field, including water treatment jar, be provided with the reverse osmosis membrane in water treatment jar, be provided with the reaction pool circulation pipe in water treatment jar, and the both ends of reaction pool circulation pipe respectively pass through the top and bottom position of water treatment jar, the outer surface of reaction pool circulation pipe is opened with a plurality of through -hole, and the outside of reaction pool circulation pipe is provided with the hole clearance subassembly that is movably connected with the through -hole, is provided with the swing arm drive unit between water treatment jar and reaction pool circulation pipe, and swing arm drive unit is connected with hole clearance subassembly, and is provided with the traction support subassembly between hole clearance subassembly and reaction pool circulation pipe, the outer surface of reverse osmosis membrane and the inner wall of water treatment jar form the pure water collection area, and the bottom fixed connection of water treatment jar has the pure water exhaust pipe that communicates with pure water collection area, the utility model solves the technical problem that the pipeline that transports raw water towards reverse osmosis membrane is easy to block.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, specifically to an automatic device suitable for CCRO water treatment systems. Background Technology

[0002] With increasingly stringent environmental protection requirements, wastewater treatment is receiving more and more attention. CCRO (Closed-Circuit Reverse Osmosis) systems are a highly efficient water treatment technology. They use pressurized circulating feed water to circulate within membrane modules, continuously concentrating it until the desired recovery level is achieved. High recovery rates, up to 98%, can be achieved in a single stage. The system features automatic control functions, automatically adjusting reagent addition, pump operation, and valve opening and closing based on water quality and operating parameters. It can also automatically clean the membrane modules, reducing manual intervention. Compared to traditional reverse osmosis systems, CCRO systems can reduce brine waste by 50%-75%, lower energy consumption by 35%, and reduce scaling and microbial contamination, lower maintenance costs, and improve operational efficiency.

[0003] Currently, reverse osmosis water treatment devices mainly use pipes connected to the reaction tank and equipped with permeable holes to transport raw water to the reverse osmosis membrane. The permeate in the raw water can permeate through the reverse osmosis membrane. However, when the transport pipes are in use, precipitates such as calcium carbonate in the aqueous solution are easily deposited in the permeable holes. The blockage of the precipitates will reduce the water flow rate through the permeable holes, thereby reducing the water treatment efficiency. Utility Model Content

[0004] To overcome the shortcomings mentioned above, this invention aims to provide an automatic device suitable for CCRO water treatment systems that can solve the problem of easy clogging in pipes that deliver raw water to reverse osmosis membranes.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An automatic device suitable for CCRO water treatment systems includes a water treatment tank, a reverse osmosis membrane disposed inside the water treatment tank, a reaction tank circulation pipe disposed inside the water treatment tank, with both ends of the reaction tank circulation pipe passing through the top and bottom of the water treatment tank respectively, multiple through holes being formed on the outer surface of the reaction tank circulation pipe, a hole cleaning assembly being disposed on the outer side of the reaction tank circulation pipe and movably connected to the through holes, a swing arm drive unit being disposed between the water treatment tank and the reaction tank circulation pipe, the swing arm drive unit being connected to the hole cleaning assembly, and a traction support assembly being disposed between the hole cleaning assembly and the reaction tank circulation pipe.

[0006] As a further embodiment of this utility model: a pure water collection area is formed between the outer surface of the reverse osmosis membrane and the inner wall of the water treatment tank, and a pure water drain pipe connected to the bottom of the water treatment tank is fixedly connected to the pure water collection area.

[0007] As a further embodiment of this utility model, the bottom of the inner wall of the through hole is inclined downwards.

[0008] As a further embodiment of this utility model: the hole cleaning assembly includes a needle plate, which is disposed on the outside of the circulation pipe of the reaction tank, and a plurality of hole cleaning needles are fixedly connected to the side of the needle plate, which are used to insert into the through hole.

[0009] As a further embodiment of this utility model: a pad is fixedly connected to the outer surface of the reaction tank circulation pipe, and the pad is in movable contact with the side of one end of the needle plate.

[0010] As a further embodiment of this utility model: the swing arm drive unit includes a servo motor, which is mounted on the outer surface of the water treatment tank. The output shaft of the servo motor is fixedly connected to a transmission rod. One end of the transmission rod passes through the water treatment tank and the reverse osmosis membrane in sequence and is fixedly connected to a drive gear. An auxiliary gear is meshed on the drive gear. Driven gears are meshed on the drive gear and the auxiliary gear, respectively. A support plate is fixedly connected to the outer surface of the reaction tank circulation pipe. The auxiliary gear and the driven gear are rotatably connected to the support plate through a rotating shaft, and the rotating shaft end of the driven gear is fixedly connected to the other end of the needle plate.

[0011] As a further embodiment of this utility model: the traction support assembly includes a shaft, the shaft is fixedly connected to the needle plate, a first support arm is rotatably connected to the shaft, a second support arm is hinged to one end of the first support arm, and a fixed seat is rotatably connected to one end of the second support arm via a rotating shaft, the fixed seat being fixedly connected to the outer surface of the circulation pipe of the reaction tank.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The cleaning device of the CCRO water treatment system of this utility model is provided with a hole cleaning component on the side of the circulation pipe of the reaction tank. The swing arm drive unit provides the swing arm rotation power for the hole cleaning component. When the needle plate rotates, the vertical state can control the hole cleaning needle to extend into the through hole to clean the blockage. The design of the bottom of the inner wall of the through hole is inclined downward to reduce the deposition rate of sediment. This can ensure the water flow effect of the through hole and improve the water treatment efficiency.

[0013] 2. The cleaning device of the CCRO water treatment system of this utility model, by setting up a traction support component, allows the cleaning component to be deployed in the open state during the normal flow of raw water through the through hole. The traction support component can adapt to the deployment of the cleaning component and provide support. By providing traction support to the end of the cleaning component facing away from the swing arm drive unit, the stability of the cleaning component's position can be ensured. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a utility model Figure 1 A sectional view; Figure 3 This is a planar sectional view of the reaction tank circulation pipe of this utility model; Figure 4 This is a schematic diagram of the structure of the reaction tank circulation pipe, the hole cleaning assembly, the swing arm drive unit, and the traction support assembly of this utility model; Figure 5 This is a schematic diagram of the structure of the hole clearing component and the traction support component of this utility model.

[0015] The reference numerals and names in the figure are as follows: 1. Water treatment tank; 2. Reverse osmosis membrane; 3. Reaction tank circulation pipe; 4. Through hole; 5. Needle plate; 6. Cleaning needle; 7. Servo motor; 8. Transmission rod; 9. Drive gear; 10. Auxiliary gear; 11. Driven gear; 12. Support plate; 13. Shaft; 14. Support arm one; 15. Support arm two; 16. Fixing base; 17. Pad; 18. Pure water drain pipe. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-5 An automatic device suitable for CCRO water treatment system includes a water treatment tank 1, a reverse osmosis membrane 2 is installed inside the water treatment tank 1, a pure water collection area is formed between the outer surface of the reverse osmosis membrane 2 and the inner wall of the water treatment tank 1, and a pure water drain pipe 17 connected to the bottom of the water treatment tank 1 is fixedly connected to the pure water collection area.

[0018] The reverse osmosis membrane 2 can be fixedly installed inside the water treatment tank 1. The reverse osmosis membrane 2 divides the water treatment tank 1 into regions, which can form a pure water collection area and a raw water concentration area inside the water treatment tank 1. The raw water in the raw water concentration area can pass through the reverse osmosis membrane 2 to permeate the permeate under the action of pump pressure. The permeate can be discharged through the pure water drain pipe 17.

[0019] In this embodiment: a reaction tank circulation pipe 3 is provided inside the water treatment tank 1, and the two ends of the reaction tank circulation pipe 3 pass through the top and bottom of the water treatment tank 1, respectively.

[0020] The reaction tank circulation pipe 3 can be fixedly installed on the water treatment tank 1. The top end of the reaction tank circulation pipe 3 is the raw water inlet, and the bottom end is the concentrated water outlet. It is necessary to provide valves at the raw water inlet and concentrated water outlet positions. The concentrated water outlet can return the concentrated water to the reaction tank. The concentrated water outlet and the raw water inlet can use the circulation pump of the existing water treatment system to make the water flow circulate in the loop of the reaction tank, the circulation pump, the reverse osmosis membrane 2 in the water treatment tank 1 and the reaction tank. Referring to the invention disclosed in patent publication number CN119612835A, a CCRO high-efficiency water treatment system and its working method, the reaction tank described in this application is consistent with the working environment of the reaction tank in the above patent, and will not be repeated here.

[0021] In this embodiment, the outer surface of the reaction tank circulation pipe 3 is provided with multiple through holes 4, and the bottom of the inner wall of the through holes 4 is inclined downward.

[0022] When raw water is transported towards the reverse osmosis membrane 2 through the through hole 4 on the circulation pipe 3 of the reaction tank, the downward-sloping opening of the through hole 4 can reduce the accumulation of precipitates in the aqueous solution, so as to avoid the rapid deposition of impurities in the aqueous solution.

[0023] In this embodiment: a cleaning assembly is provided on the outside of the reaction tank circulation pipe 3 and is movably connected to the through hole 4. The cleaning assembly includes a needle plate 5, which is located on the outside of the reaction tank circulation pipe 3. Multiple cleaning needles 6 are fixedly connected to the side of the needle plate 5. The cleaning needles 6 are used to insert into the through hole 4.

[0024] The number of cleaning holes is one pair. The cleaning needles 6 are arranged in a conical structure and their number is the same as the number of through holes 4. Since the multiple through holes 4 on the circulation pipe 3 of the reaction tank in this application are arranged in two rows, the number of cleaning holes should be set in two sets. By controlling the cleaning needles 6 on the needle plate 5 to extend into the through holes 4 to push away the blockage impurities, the water passage of the through holes 4 can be guaranteed.

[0025] In this embodiment: a swing arm drive unit is provided between the water treatment tank 1 and the reaction tank circulation pipe 3. The swing arm drive unit is connected to the cleaning assembly. The swing arm drive unit includes a servo motor 7. The servo motor 7 is mounted on the outer surface of the water treatment tank 1. The output shaft of the servo motor 7 is fixedly connected to a transmission rod 8. One end of the transmission rod 8 passes through the water treatment tank 1 and the reverse osmosis membrane 2 in sequence and is fixedly connected to a drive gear 9. An auxiliary gear 91 is meshed on the drive gear 9. Driven gears 10 are meshed on the drive gear 9 and the auxiliary gear 91, respectively. A support plate 11 is fixedly connected to the outer surface of the reaction tank circulation pipe 3. The auxiliary gear 91 and the driven gear 10 are rotatably connected to the support plate 11 through a rotating shaft, and the rotating shaft end of the driven gear 10 is fixedly connected to the other end of the needle plate 5.

[0026] The transmission rod 8 is rotatably connected to the water treatment tank 1 and the reverse osmosis membrane 2. The connection between the transmission rod 8 and the water treatment tank 1 should be sealed and rotated through a sealed bearing. The driving gear 9, the auxiliary gear 91, and the driven gear 10 are all cylindrical gears.

[0027] In use, by starting the servo motor 7, the servo motor 7 can drive the drive gear 9 to rotate via the transmission rod 8. The drive gear 9 can drive the auxiliary gear 91 and one of the driven gears 10 to rotate respectively. The auxiliary gear 91 can drive the other driven gear 10 to rotate. The support plate 11 can provide rotational support for the auxiliary gear 91 and the driven gear 10 respectively. In this way, the pair of driven gears 10 can achieve rotation in the same direction or in opposite directions. The pair of driven gears 10 can drive the pair of needle plates 5 to fold and rotate towards or away from each other via the corresponding rotating shaft. By synchronously controlling the relative folding and rotation of the pair of hole cleaning components, the needle plate 5 can drive the hole cleaning needle 6 on it to move into or away from the through hole 4. The setting of the hole cleaning needle 6 entering the through hole 4 can clear the impurities in the through hole 4. The setting of the hole cleaning needle 6 moving away from the through hole 4 can ensure that the through hole 4 can pass through normally. Therefore, the hole cleaning component can quickly meet the need for clearing the blockage of the through hole 4.

[0028] Since a servo motor 7 can drive two sets of cleaning needle components to open and close, the cost of clearing blockage in the through hole 4 can be reduced. The servo motor 7 is electrically connected to the main controller and power supply. The main controller can be a conventional known device such as a computer that can control the device. The existing publicly available power connection technology will not be described in detail in this article.

[0029] In this embodiment, a pad 16 is fixedly connected to the outer surface of the reaction tank circulation pipe 3, and the pad 16 is in contact with the side of one end of the needle plate 5.

[0030] The pad 16 is made of rubber and has a cushioning effect. When the needle plate 5 moves toward the through hole 4, the pad 16 can provide a limit for the end of the needle plate 5 so that the needle plate 5 moves to a longitudinal position and is limited. In this way, the cleaning needle 6 can completely enter the through hole 4 to push away the blockage.

[0031] In this embodiment: a traction support assembly is provided between the cleaning assembly and the reaction tank circulation pipe 3. The traction support assembly includes a shaft 12, which is fixedly connected to the needle plate 5. A support arm 13 is rotatably connected to the shaft 12. A support arm 2 14 is hinged to one end of the support arm 13. A fixed seat 15 is rotatably connected to one end of the support arm 2 14 through a rotating shaft. The fixed seat 15 is fixedly connected to the outer surface of the reaction tank circulation pipe 3.

[0032] When the needle plate 5 rotates around the shaft driven by the driven gear 10, the shaft 12, support arm 13, support arm 14 and fixed seat 15 can rotate in sequence. When the needle plate 5 moves away from the reaction tank circulation pipe 3, support arm 13 and support arm 14 can be unfolded until support arm 13 and support arm 14 are horizontally set. Then, the end of the needle plate 5 facing away from the driven gear 10 can be traction supported by the traction support assembly on the reaction tank circulation pipe 3, so that the needle plate 5 is more stable when idle. Similarly, when the needle plate 5 moves close to the reaction tank circulation pipe 3, support arm 13 and support arm 14 can be folded and stored.

[0033] In one embodiment, in order to facilitate the better entry and exit of the cleaning needle 6 into the through hole 4, the cleaning needle 6 is made of a hard rubber material with a certain degree of flexibility.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic device suitable for CCRO water treatment systems, characterized in that, The system includes a water treatment tank (1), a reverse osmosis membrane (2) is installed inside the water treatment tank (1), a reaction tank circulation pipe (3) is installed inside the water treatment tank (1), and the two ends of the reaction tank circulation pipe (3) pass through the top and bottom of the water treatment tank (1) respectively. Multiple through holes (4) are opened on the outer surface of the reaction tank circulation pipe (3). A hole cleaning assembly is provided on the outside of the reaction tank circulation pipe (3) and is movably connected to the through holes (4). A swing arm drive unit is provided between the water treatment tank (1) and the reaction tank circulation pipe (3). The swing arm drive unit is connected to the hole cleaning assembly. A traction support assembly is provided between the hole cleaning assembly and the reaction tank circulation pipe (3).

2. The automatic device for CCRO water treatment systems according to claim 1, characterized in that, A pure water collection area is formed between the outer surface of the reverse osmosis membrane (2) and the inner wall of the water treatment tank (1). A pure water pipe (17) connected to the pure water collection area is fixedly connected to the bottom of the water treatment tank (1).

3. An automatic device suitable for CCRO water treatment systems according to claim 1, characterized in that, The bottom of the inner wall of the through hole (4) is inclined downward.

4. An automatic device suitable for CCRO water treatment systems according to claim 1, characterized in that, The hole cleaning assembly includes a needle plate (5), which is disposed on the outside of the circulation pipe (3) of the reaction tank. Multiple hole cleaning needles (6) are fixedly connected to the side of the needle plate (5), and the hole cleaning needles (6) are used to be inserted into the through hole (4).

5. An automatic device suitable for CCRO water treatment systems according to claim 4, characterized in that, A pad (16) is fixedly connected to the outer surface of the reaction tank circulation pipe (3), and the pad (16) is in contact with the side of one end of the needle plate (5).

6. An automatic device suitable for CCRO water treatment systems according to claim 5, characterized in that, The swing arm drive unit includes a servo motor (7), which is mounted on the outer surface of the water treatment tank (1). The output shaft of the servo motor (7) is fixedly connected to a transmission rod (8). One end of the transmission rod (8) passes through the water treatment tank (1) and the reverse osmosis membrane (2) in sequence and is fixedly connected to a drive gear (9). An auxiliary gear (91) is meshed on the drive gear (9). Driven gears (10) are meshed on the drive gear (9) and the auxiliary gear (91), respectively. A support plate (11) is fixedly connected to the outer surface of the reaction tank circulation pipe (3). The auxiliary gear (91) and the driven gear (10) are rotatably connected to the support plate (11) through a rotating shaft, and the rotating shaft end of the driven gear (10) is fixedly connected to the other end of the needle plate (5).

7. An automatic device suitable for CCRO water treatment systems according to claim 6, characterized in that, The traction support assembly includes a shaft (12), which is fixedly connected to the needle plate (5). A support arm (13) is rotatably connected to the shaft (12). A support arm (14) is hinged to one end of the support arm (13). A fixed seat (15) is rotatably connected to one end of the support arm (14) via a rotating shaft. The fixed seat (15) is fixedly connected to the outer surface of the circulation pipe (3) of the reaction tank.

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