A high recovery rate brackish water reverse osmosis membrane device

Abstract

The utility model discloses a kind of high recovery rate bitter and brackish water reverse osmosis membrane devices, it is related to reverse osmosis membrane technical field, including treatment pond, the inner wall of the treatment pond is fixedly connected with partition, partition is divided into sediment cavity, detection cavity and permeation cavity in treatment pond, in the utility model, connecting frame is fixedly connected with hydraulic push rod, filter screen is slidably connected with sediment cavity, hydraulic push rod drives connecting frame to move down, filter screen and connecting frame move synchronously, the use height of adjusting filter screen, the solution of entering water pump two is filtered, the transfer of solution between sediment cavity and detection cavity can be realized by water pump two, the removal effect of silicon can be improved by composite material inside purification cylinder, to reduce the formation of silicon composite pollution, the pH of solution inside detection cavity can be obtained by using pH sensor, it is convenient to adjust the pH of solution according to detection result, reduce the interference of pH value when reverse osmosis membrane is used, guarantee the normal use of reverse osmosis membrane assembly.

Description

Technical Field

[0001] This utility model relates to the field of reverse osmosis membrane technology, and in particular to a high-recovery-rate brackish water reverse osmosis membrane device. Background Technology

[0002] A reverse osmosis membrane device is a water treatment equipment based on reverse osmosis technology. Its core function is to separate impurities, ions, microorganisms, etc. from water through a semi-permeable membrane under pressure, thereby obtaining high-purity water, which can be used to treat brackish water.

[0003] For example, Chinese patent CN209010257U discloses a high-salinity brackish water reverse osmosis device, which includes a shell, a support leg fixedly connected to the bottom of the shell, a support bar fixedly connected to the middle of the surface of the support leg, a reverse osmosis tank fixedly connected to the bottom of the inner wall of the shell, a reverse osmosis membrane fixedly connected to the inside of the reverse osmosis tank, and a water purification pipe fixedly connected to the right side of the reverse osmosis tank.

[0004] Although the aforementioned patents solved the problem of suspended matter accumulating on the membrane surface through coarse filters and fine filters, the above structures did not specifically control the silicon element in high-salt brackish water. When the concentration of silica in the influent exceeds 50 mg / L, even with the addition of scale inhibitors, the low silica removal efficiency in the pretreatment will still lead to the formation of silicon composite fouling on the RO membrane surface. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the existing technology that does not specifically control the silicon element in high-salt brackish water. When the concentration of silica in the influent exceeds 50 mg / L, even with the addition of scale inhibitors, the low silica removal efficiency in the pretreatment will still lead to the formation of silicon composite fouling on the surface of the RO membrane. Therefore, this invention proposes a high-recovery-rate brackish water reverse osmosis membrane device.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a high-recovery-rate brackish water reverse osmosis membrane device, comprising a treatment tank, wherein a partition plate is fixedly connected to the inner wall of the treatment tank, dividing the interior of the treatment tank into a sedimentation chamber, a detection chamber, and a permeation chamber, wherein a reverse osmosis membrane assembly is installed inside the permeation chamber, and a pretreatment mechanism is provided on one side of the reverse osmosis membrane assembly, wherein the pretreatment mechanism includes a second stirrer, a filter screen, and a purification cylinder, wherein the stirring shaft of the second stirrer passes through the filter screen, the stirring shaft is rotatably connected to the filter screen, the filter screen is slidably connected to the sedimentation chamber, a guide pipe is fixedly connected to the bottom of the purification cylinder, a water pump is fixedly connected to one end of the guide pipe, a support frame is fixedly connected to the bottom of the water pump, the bottom of the support frame is fixedly connected to the treatment tank, a connecting pipe is fixedly connected to the outlet of the purification cylinder, and a third water pump is fixedly connected to the end of the connecting pipe.

[0007] Preferably, the outlet of the water pump three is connected to a pipe through a three-way valve, the end of the pipe is connected to the permeation chamber, and a reinforcing plate is fixedly connected to the bottom of the water pump three. One side of the reinforcing plate is fixedly connected to the treatment tank, and the two sides of the treatment tank are respectively fixedly connected to the inlet and the outlet.

[0008] Preferably, the top of the support frame is fixedly connected to the drive structure of the agitator, and a hydraulic push rod is provided at the bottom of the support frame. The bottom of the hydraulic push rod is fixedly connected to the connecting frame, and one side of the hydraulic push rod is fixedly connected to the inner wall of the sedimentation chamber.

[0009] Preferably, a second water pump is fixedly connected to the top of the support frame, and the inlet pipe and outlet pipe of the second water pump are respectively connected to the sedimentation chamber and the detection chamber.

[0010] Preferably, a threaded rod is rotatably connected to one side of the treatment tank, and a guide plate is threadedly connected to the threaded rod. One end of the guide plate passes through the side wall of the treatment tank, and the guide plate is slidably connected to the treatment tank.

[0011] Preferably, an electric push rod is fixedly connected to the bottom of the guide plate, a pH sensor is fixedly connected to the bottom of the electric push rod, and a pH sensor is fixedly connected to the bottom of the mounting plate.

[0012] Preferably, a stirrer is provided on one side of the pH sensor, and the drive structure on the top of the stirrer is connected to the support frame by bolts.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, the connecting frame is fixedly connected to the hydraulic push rod, and the filter screen is slidably connected to the sedimentation chamber. The hydraulic push rod drives the connecting frame to move down, and the filter screen and the connecting frame move synchronously. The height of the filter screen is adjusted to filter the solution entering the second water pump. The second water pump can realize the transfer of the solution between the sedimentation chamber and the detection chamber. The composite material inside the purification cylinder can improve the removal effect of silicon, thereby reducing the formation of silicon composite pollution.

[0014] 2. In this utility model, the guide plate is slidably connected to the treatment tank, and the bottom of the electric push rod is fixedly connected to the mounting plate. When the threaded rod is rotated, the guide plate slides along the treatment tank, and the electric push rod drives the mounting plate to move down, which can change the position of the pH sensor. The pH sensor can be used to obtain the pH of the solution inside the detection chamber, which is convenient to adjust the pH value of the solution according to the detection results, reduce the interference of pH value on the reverse osmosis membrane during use, and ensure the normal use of the reverse osmosis membrane module. Attached Figure Description

[0015] Figure 1 This invention provides a three-dimensional structural diagram of a high-recovery-rate brackish water reverse osmosis membrane device. Figure 2This utility model provides a schematic diagram of the connection frame structure installation for a high-recovery-rate brackish water reverse osmosis membrane device; Figure 3 This utility model provides a schematic diagram of the partition plate structure installation for a high-recovery-rate brackish water reverse osmosis membrane device; Figure 4 This invention provides a schematic diagram of the guide tube structure installation for a high-recovery-rate brackish water reverse osmosis membrane device.

[0016] Legend: 1. Treatment tank; 2. Threaded rod; 3. Guide plate; 4. Support frame; 5. Agitator 1; 6. Agitator 2; 7. Hydraulic push rod; 8. Connecting frame; 9. Filter screen; 10. Electric push rod; 11. Mounting plate; 12. pH sensor; 13. Reverse osmosis membrane module; 14. Separator plate; 15. Water pump 1; 16. Water pump 2; 17. Guide pipe; 18. Purification cylinder; 19. Connecting pipe; 20. Water pump 3; 21. Reinforcing plate. Detailed Implementation

[0017] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0019] Example 1: Refer to Figures 1-4 As shown: A high-recovery-rate brackish water reverse osmosis membrane device includes a treatment tank 1. A partition plate 14 is fixedly connected to the inner wall of the treatment tank 1, dividing the interior of the treatment tank 1 into a sedimentation chamber, a detection chamber, and a permeation chamber. A reverse osmosis membrane assembly 13 is installed inside the permeation chamber. A pretreatment mechanism is provided on one side of the reverse osmosis membrane assembly 13. The pretreatment mechanism includes a stirrer 6, a filter screen 9, and a purification cylinder 18. The stirring shaft of the stirrer 6 passes through the filter screen 9, and the stirring shaft is rotatably connected to the filter screen 9. The filter screen 9 is slidably connected to the sedimentation chamber. A guide pipe 17 is fixedly connected to the bottom of the purification cylinder 18. A water pump 15 is fixedly connected to one end of the guide pipe 17. A support frame 4 is fixedly connected to the bottom of the water pump 15. The bottom of the support frame 4 is fixedly connected to the treatment tank 1. A connecting pipe 19 is fixedly connected to the outlet of the purification cylinder 18. A water pump 20 is fixedly connected to the end of the connecting pipe 19.

[0020] The outlet of water pump 20 is connected to a pipe via a three-way valve. The end of the pipe is connected to the permeation chamber. A reinforcing plate 21 is fixedly connected to the bottom of water pump 20. One side of the reinforcing plate 21 is fixedly connected to the treatment tank 1. The two sides of the treatment tank 1 are fixedly connected to the inlet and outlet, respectively. The top of the support frame 4 is fixedly connected to the drive structure of the agitator 6. A hydraulic push rod 7 is provided at the bottom of the support frame 4. The bottom of the hydraulic push rod 7 is fixedly connected to the connecting frame 8. One side of the hydraulic push rod 7 is fixedly connected to the inner wall of the sedimentation chamber. Water pump 16 is fixedly connected to the top of the support frame 4. The inlet and outlet pipes of water pump 16 are connected to the sedimentation chamber and the detection chamber, respectively.

[0021] The mixing of liquid and coagulant can be accelerated by using stirrer 26. The height of filter screen 9 can be adjusted by hydraulic push rod 7, so that the height of filter screen 9 is higher than the liquid surface before sedimentation, thus avoiding sedimentation above filter screen 9. Filter screen 9 moves down to filter the solution. The supernatant can pass through the through hole of filter screen 9 above filter screen 9, thus avoiding sedimentation from entering water pump 216 and causing blockage of water pump 216. Water pump 216 can realize the transfer of solution between sedimentation chamber and detection chamber. Water pump 15 can remove the solution inside detection chamber. The flow of solution can be guided by guide tube 17, so that the solution can enter the purification cylinder 18 smoothly. It is treated by the "zirconium-loaded activated carbon" composite material inside the purification cylinder 18 to remove dissolved silicon, thereby reducing silicon composite pollution when the reverse osmosis membrane module 13 is used. Water pump 320 can accelerate the discharge of liquid from inside the purification cylinder 18. The liquid is sent into the permeation chamber through the pipeline and treated by the permeation membrane inside the reverse osmosis membrane module 13 to ensure the treatment effect of liquid and thus improve the recovery rate of liquid.

[0022] Example 2: Figure 1 and Figure 2 As shown, a threaded rod 2 is rotatably connected to one side of the treatment tank 1. The threaded rod 2 is connected to a guide plate 3 by a thread. One end of the guide plate 3 passes through the side wall of the treatment tank 1, and the guide plate 3 is slidably connected to the treatment tank 1. An electric push rod 10 is fixedly connected to the bottom of the guide plate 3. A pH sensor 12 is fixedly connected to the bottom of the electric push rod 10. A pH sensor 12 is fixedly connected to the bottom of the mounting plate 11. A stirrer 5 is provided on one side of the pH sensor 12. The drive structure at the top of the stirrer 5 is connected to the support frame 4 by bolts.

[0023] The treatment tank 1 can be used to support one end of the threaded rod 2. The guide plate 3 is connected to the threaded rod 2 by a thread. When the threaded rod 2 rotates, it can drive the guide plate 3 to move along the treatment tank 1, thereby changing the distance between the mounting plate 11 and the inner wall of the treatment tank 1. The height of the mounting plate 11 and the pH sensor 12 can be adjusted by the electric push rod 10, so that the bottom of the pH sensor 12 can be immersed in the liquid surface to detect the pH of the solution.

[0024] The operating method and working principle of this device are as follows: First, the brackish water to be treated is sent into the sedimentation chamber through the inlet on one side of the treatment tank 1. A coagulant is added inside the sedimentation chamber, and the stirring shaft of stirrer 6 agitates the water. After settling, sediment accumulates at the bottom of the sedimentation chamber. A hydraulic push rod 7 drives the connecting frame 8 and filter screen 9 to move downwards, compressing the sediment. A water pump 16 sends the upper layer of solution into the detection chamber. An electric push rod 10 drives the mounting plate 11 and pH sensor 12 to move downwards, detecting the pH value of the solution. If the pH value does not meet the requirements, a pH-adjusting agent is added to the detection chamber. The stirring shaft of stirrer 5 is used to stir until the pH value meets the requirements. If the pH value meets the requirements, the solution is pumped out by water pump 15 and enters the guide pipe 17. The one-way valve at the bottom of the purification cylinder 18 is opened to allow the solution to enter the purification cylinder 18. The solution is loaded onto the surface of the activated carbon by the "zirconium-loaded activated carbon" composite material inside the purification cylinder 18, i.e., ZrO2 particles, to achieve organic matter removal and silicon adsorption. The treated water can enter the connecting pipe 19 and be discharged into the permeation chamber by water pump 20. After being treated by the internal reverse osmosis membrane, it is discharged from the drain outlet on one side of the treatment tank 1.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A high-recovery-rate brackish water reverse osmosis membrane device, comprising a treatment tank (1), characterized in that: The treatment tank (1) is fixedly connected to a partition plate (14) on its inner wall. The partition plate (14) divides the interior of the treatment tank (1) into a sedimentation chamber, a detection chamber and a permeation chamber. A reverse osmosis membrane assembly (13) is installed inside the permeation chamber. A pretreatment mechanism is provided on one side of the reverse osmosis membrane assembly (13). The pretreatment mechanism includes a stirrer (6), a filter screen (9) and a purification cylinder (18). The stirring shaft of the stirrer (6) passes through the filter screen (9). The stirring shaft and the filter screen (9) are rotatably connected. The filter screen (9) and the sedimentation chamber are slidably connected. A guide pipe (17) is fixedly connected to the bottom of the purification cylinder (18). A water pump (15) is fixedly connected to one end of the guide pipe (17). A support frame (4) is fixedly connected to the bottom of the water pump (15). The bottom of the support frame (4) is fixedly connected to the treatment tank (1). A connecting pipe (19) is fixedly connected to the outlet of the purification cylinder (18). A water pump (20) is fixedly connected to the end of the connecting pipe (19).

2. The high-recovery-rate brackish water reverse osmosis membrane device according to claim 1, characterized in that: The outlet of the water pump (20) is connected to a pipe through a three-way valve. The end of the pipe is connected to the permeation chamber. A reinforcing plate (21) is fixedly connected to the bottom of the water pump (20). One side of the reinforcing plate (21) is fixedly connected to the treatment tank (1). The two sides of the treatment tank (1) are respectively fixedly connected to the inlet and outlet.

3. The high-recovery-rate brackish water reverse osmosis membrane device according to claim 1, characterized in that: The top of the support frame (4) is fixedly connected to the drive structure of the agitator (6), and a hydraulic push rod (7) is provided at the bottom of the support frame (4). The bottom of the hydraulic push rod (7) is fixedly connected to the connecting frame (8), and one side of the hydraulic push rod (7) is fixedly connected to the inner wall of the sedimentation chamber.

4. The high-recovery-rate brackish water reverse osmosis membrane device according to claim 1, characterized in that: The top of the support frame (4) is fixedly connected to a second water pump (16), and the inlet pipe and outlet pipe of the second water pump (16) are respectively connected to the sedimentation chamber and the detection chamber.

5. The high-recovery-rate brackish water reverse osmosis membrane device according to claim 1, characterized in that: The treatment tank (1) is rotatably connected to a threaded rod (2) on one side. The threaded rod (2) is connected to a guide plate (3) by a thread. One end of the guide plate (3) passes through the side wall of the treatment tank (1), and the guide plate (3) is slidably connected to the treatment tank (1).

6. The high-recovery-rate brackish water reverse osmosis membrane device according to claim 5, characterized in that: An electric push rod (10) is fixedly connected to the bottom of the guide plate (3), a pH sensor (12) is fixedly connected to the bottom of the electric push rod (10), and a pH sensor (12) is fixedly connected to the bottom of the mounting plate (11).

7. The high-recovery-rate brackish water reverse osmosis membrane device according to claim 1, characterized in that: A stirrer (5) is provided on one side of the pH sensor (12), and the drive structure on the top of the stirrer (5) is connected to the support frame (4) by bolts.

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