Reverse osmosis device capable of running in forward and reverse directions
By designing a reverse osmosis device that operates forward and reversely, using the combination of multi-layer membrane shell and cleaning pipeline, the problem of congestion caused by the concentration of suspended matter and colloids in sewage is solved, extending the operating cycle of the device and improving the cleaning effect.
Patent Information
- Application Number
- CN202420421501.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-05
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-03-05
AI Technical Summary
In the sewage reuse system, since the water inlet direction of the reverse osmosis device is the same, the suspended substance and colloid will be concentrated at the front end of a section, resulting in heavy pollution and affecting the operating cycle and cleaning effect.
A reverse osmosis device for forward and reverse operation is designed. By setting up a raw water tank, a first membrane shell, a second membrane shell, a concentrated water tank and a water outlet tank, combining the connecting pipe and a cleaning pipe, forward and reverse cleaning is achieved, pollutant congestion and prolong the operation cycle.
Effectively slow down the contamination of pollutants in the front end membrane, extend the operating cycle of the reverse osmosis device, and improve its service life.
Smart Images
Figure CN222631144U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water treatment, in particular to a forward and reverse operating reverse osmosis device. Background Art
[0002] The reverse osmosis membrane water treatment process is currently recognized as one of the most effective technologies for water desalination. In large and medium-sized thermal power plants that use surface water as boiler water source, reverse osmosis technology is increasingly used in chemical desalination water treatment.
[0003] Conventional reverse osmosis devices generally use one direction of water inlet between the first and second stages. However, in the sewage reuse system, the water quality of the inlet water is poor and easily fluctuates. Since the reverse osmosis device has the same water inlet direction, the same membrane shell usually contains 6 reverse osmosis membranes, and suspended matter and colloids will be concentrated at the front end of the first stage. As the operating time increases, the pollution at the front end will become more and more serious, affecting the operating cycle of the reverse osmosis device, and in severe cases, it will also affect the cleaning effect. Utility Model Content
[0004] The purpose of the utility model is to provide a reverse osmosis device that operates in both forward and reverse directions to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a forward and reverse running reverse osmosis device, comprising a raw water tank, a first membrane shell is arranged on one side of the raw water tank, a second membrane shell is arranged on one side of the first membrane shell, a second membrane shell is arranged on one side of the second membrane shell, a connecting pipe is arranged on one side of the two-section membrane shell, a cleaning pipe is arranged on one side of the connecting pipe, a concentrated water tank is arranged on one side of the connecting pipe, and a water outlet tank is arranged on one side of the concentrated water tank.
[0006] Preferably, a water pipe is provided on one side of the raw water tank, a water inlet valve is provided on the outer circular wall of the water pipe, a return pipe is provided on one side of the water pipe, and a return valve is provided on one side of the return pipe.
[0007] Preferably, a water inlet pipe is provided on the top surface of the raw water tank, and a closing cover is provided on the top surface of the water inlet pipe.
[0008] Preferably, a concentrate water connecting pipe is provided on one side of the first membrane shell, a concentrate water valve is provided on one side of the concentrate water connecting pipe, and a concentrate water reflux valve is provided on one side of the concentrate water connecting pipe.
[0009] Preferably, a clean water discharge pipe is provided on one side of the connecting pipe, and a clean water discharge valve is provided on the outer circular wall surface of the clean water discharge pipe.
[0010] Preferably, a concentrated water discharge valve is provided on the outer circular wall of the connecting pipe, and a cleaning valve is provided on the outer circular wall of the cleaning pipe.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The forward and reverse operating reverse osmosis device can desalinate raw water through the provided raw water tank and a first membrane shell, a second membrane shell, a second membrane shell, a concentrated water tank, and an outlet water tank. The provided connecting pipe and cleaning pipe can be used to clean the inside of the device in both forward and reverse directions. The use of the two pipes in coordination can effectively reduce the clogging of the front membrane by pollutants, thereby extending the operation cycle of the reverse osmosis device and also increasing its service life.
[0013] This forward and reverse operating reverse osmosis device can control the direction of water flow inside the device through the water pipe and water inlet valve, return pipe and return valve. The flow direction of concentrate water inside the device can be controlled through the concentrate water connecting pipe, concentrate water valve and concentrate water return valve. When used in conjunction with each other, the direction of water flow inside the device can be freely adjusted, and the flow direction of concentrate water and clean water can be controlled, which can effectively improve the cleaning strength and effect inside the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a three-dimensional exploded view of the utility model;
[0015] Figure 2 This is a three-dimensional exploded view of the original water tank of the utility model;
[0016] Figure 3 This is a three-dimensional exploded view of a first membrane shell of the utility model;
[0017] Figure 4 It is a three-dimensional exploded view of the concentrated water tank of the utility model.
[0018] In the figure: 1. raw water tank; 2. first membrane shell; 3. second membrane shell; 4. second membrane shell; 5. connecting pipe; 6. cleaning pipe; 7. concentrated water tank; 8. outlet water tank; 9. water pipe; 10. water inlet valve; 11. reflux pipe; 12. reflux valve; 13. water inlet pipe; 14. closing cover; 15. concentrated water connecting pipe; 16. concentrated water valve; 17. concentrated water reflux valve; 18. clean water discharge pipe; 19. clean water discharge valve; 20. concentrated water discharge valve; 21. cleaning valve. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] like Figure 1-4 As shown, the utility model provides a technical solution: a reverse osmosis device running in forward and reverse directions, including a raw water tank 1, the raw water tank 1 is used to store raw water to ensure that the raw water can enter the subsequent device through the raw water tank 1, a first membrane shell 2 is arranged on one side of the raw water tank 1, and the first membrane shell 2 is used to cooperate with a second membrane shell 3 to ensure that the raw water can enter the device for the first effective filtration, a second membrane shell 3 is arranged on one side of the first membrane shell 2, and the second membrane shell 3 is used to cooperate with the first membrane shell 2 to ensure that the raw water can enter the device for the first effective filtration, and the second membrane A two-stage membrane shell 4 is arranged on one side of the shell 3. The two-stage membrane shell 4 is used to perform two-stage filtration on the raw water that has passed the first filtration, so as to ensure that the raw water can be effectively filtered. A connecting pipe 5 is arranged on one side of the two-stage membrane shell 4. The connecting pipe 5 is used to connect the two-stage membrane shell 4 and the concentrated water tank 7, so as to ensure that the concentrated water produced after filtration can flow to the concentrated water tank 7 for collection. A cleaning pipe 6 is arranged on one side of the connecting pipe 5. The cleaning pipe 6 is used to connect the cleaning water and discharge the cleaned water, so as to ensure that the inside of the device can be effectively cleaned. A concentrated water tank 7 is arranged on one side of the connecting pipe 5. The concentrated water tank 7 is used to collect the concentrated water produced after filtration inside the device, so as to ensure that the concentrated water can be In order to be effectively collected, a water outlet tank 8 is arranged on one side of the concentrated water tank 7, and the water outlet tank 8 is used to collect the filtered clean water to ensure that the clean water can be effectively collected. A water pipe 9 is arranged on one side of the raw water tank 1, and the water pipe 9 is used to connect the raw water tank 1 and other components to ensure that the raw water can normally enter and flow into other components. The outer wall of the water pipe 9 is provided with a water inlet valve 10, and the water inlet valve 10 is used to control the dredging state of the water pipe to ensure that the dredging state of the water pipe 9 can be freely controlled. A reflux pipe 11 is arranged on one side of the water pipe 9, and the reflux pipe 11 is used to guide the water flow back into the device to ensure that the device The part can be effectively filtered and cleaned. A reflux valve 12 is provided on one side of the reflux pipe 11. The reflux valve 12 is used to control the dredging state of the reflux pipe 11 to ensure that the dredging state of the reflux pipe 11 can be freely adjusted. A water inlet pipe 13 is provided on the top surface of the raw water tank 1. The water inlet pipe 13 is used to guide the raw water into the raw water tank 1 to ensure that the raw water can be effectively collected. A closing cover 14 is provided on the top surface of the water inlet pipe 13. The closing cover 14 is used to close the top surface of the water inlet pipe 13 to ensure that the top surface of the water inlet pipe 13 is in a closed state when the water inlet pipe 13 is not needed, thereby preventing dust or particulate impurities from entering the raw water tank 1.
[0021] A concentrated water connecting pipe 15 is provided on one side of a first membrane shell 2, and the concentrated water connecting pipe 15 is used to connect a first membrane shell 2 and a second membrane shell 3. After the raw water is treated for a period of time, the concentrated water can be discharged and guided. A concentrated water valve 16 is provided on one side of the concentrated water connecting pipe 15, and the concentrated water valve 16 is used to control the dredging state of the concentrated water connecting pipe 15 to ensure that the dredging state of the concentrated water connecting pipe 15 can be freely controlled. A concentrated water reflux valve 17 is provided on one side of the concentrated water connecting pipe 15, and the concentrated water reflux valve 17 is used to control the dredging state of the concentrated water reflux pipe on one side of the concentrated water connecting pipe 15 to ensure that the dredging state of the concentrated water reflux pipe can be freely adjusted. A clean water discharge pipe 18 is provided on one side of the connecting pipe 5, and the clean water discharge The pipe 18 is used to guide the flow direction of the clean water generated after filtration inside the device, ensuring that the clean water can enter the water outlet box 8 for collection. The outer circular wall of the clean water discharge pipe 18 is provided with a clean water discharge valve 19, and the clean water discharge valve 19 is used to control the dredging state of the clean water discharge pipe 18 to ensure that the dredging state of the clean water discharge pipe 18 can be freely controlled. The outer circular wall of the connecting pipe 5 is provided with a concentrated water discharge valve 20, and the concentrated water discharge valve 20 is used to control the dredging state of the connecting pipe 5 to ensure that the dredging state of the connecting pipe 5 can be freely controlled. The outer circular wall of the cleaning pipe 6 is provided with a cleaning valve 21, and the cleaning valve 21 is used to control the dredging state of the cleaning pipe 6 to ensure that the dredging state of the cleaning pipe 6 can be freely controlled.
[0022] Working principle: The staff removes the closing cover 14 on the water inlet pipe 13, injects the raw water into the raw water tank 1, opens the water inlet valve 10 and the concentrated water valve 16, the clean water discharge valve 19, and the concentrated water discharge valve 20, and the raw water passes through a first membrane shell 2 and a second membrane shell 3 for primary filtration, and then passes through a second membrane shell 4 for secondary filtration, and then the concentrated water and the clean water are separated and flow into the concentrated water tank 7 and the water outlet tank 8 through the connecting pipe 5 and the clean water discharge pipe 18 to complete the filtration, and then the clean water discharge valve 19 and the concentrated water discharge valve 20 are closed. The discharge valve 20 opens the reflux valve 12, the concentrated water reflux valve 17 and the cleaning valve 21, and the cleaning water is injected through the cleaning pipe 6. The cleaning water refluxes through the connecting pipe 5 and the concentrated water connecting pipe 15 to clean the first membrane shell 2, the second membrane shell 3 and the second membrane shell 4, and then is discharged from the cleaning pipe 6 on the side of the clean water discharge pipe 18 for forward cleaning. The cleaning water is injected through the cleaning pipe 6 on the side of the clean water discharge pipe 18 and discharged from the cleaning pipe 6 for reverse cleaning, and the positive direction of the inside of the complete device is cleaned.
[0023] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A reverse osmosis device for forward and reverse operation, comprising a raw water tank (1), characterized in that: A first membrane shell (2) is provided on one side of the raw water tank (1), a second membrane shell (3) is provided on one side of the first membrane shell (2), a second membrane shell (4) is provided on one side of the second membrane shell (3), a connecting pipe (5) is provided on one side of the second membrane shell (4), a cleaning pipe (6) is provided on one side of the connecting pipe (5), a concentrated water tank (7) is provided on one side of the connecting pipe (5), and a water outlet tank (8) is provided on one side of the concentrated water tank (7).
2. A forward and reverse reverse osmosis device according to claim 1, characterized in that: A water pipe (9) is provided on one side of the raw water tank (1), a water inlet valve (10) is provided on the outer circular wall of the water pipe (9), a return pipe (11) is provided on one side of the water pipe (9), and a return valve (12) is provided on one side of the return pipe (11).
3. A forward and reverse reverse osmosis device according to claim 1, characterized in that: The top surface of the raw water tank (1) is provided with a water inlet pipe (13), and the top surface of the water inlet pipe (13) is provided with a closing cover (14).
4. A forward and reverse reverse osmosis device according to claim 1, characterized in that: A concentrated water connecting pipe (15) is provided on one side of the first membrane shell (2), a concentrated water valve (16) is provided on one side of the concentrated water connecting pipe (15), and a concentrated water reflux valve (17) is provided on one side of the concentrated water connecting pipe (15).
5. A forward and reverse reverse osmosis device according to claim 1, characterized in that: A clean water discharge pipe (18) is provided on one side of the connecting pipe (5), and a clean water discharge valve (19) is provided on the outer circumferential wall surface of the clean water discharge pipe (18).
6. A forward and reverse reverse osmosis device according to claim 1, characterized in that: The outer circular wall of the connecting pipe (5) is provided with a concentrated water discharge valve (20), and the outer circular wall of the cleaning pipe (6) is provided with a cleaning valve (21).