Anti-scale reverse osmosis water treatment equipment
By using multi-stage reverse osmosis filtration components and specialized connecting pipes, the problems of scale buildup and wastewater retention are solved, achieving efficient operation and long-term stability of the reverse osmosis water treatment equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-03-31
AI Technical Summary
Scale buildup and wastewater retention in existing reverse osmosis water treatment equipment lead to decreased filtration efficiency and affect the long-term operation of the equipment.
The multi-stage reverse osmosis filtration system is designed, including an independent membrane tank and dedicated connecting pipes, equipped with a water pump to regulate water pressure, and features a descaling port and sealing cover for easy cleaning or replacement of the RO membrane, ensuring rapid wastewater discharge.
It effectively reduces scale buildup, maintains water pressure and filtration efficiency, ensures uniform operation of each filtration unit, prevents water stagnation, and extends equipment life.
Smart Images

Figure CN224057102U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of reverse osmosis water treatment equipment, specifically to a scale-preventing reverse osmosis water treatment equipment. Background Technology
[0002] Reverse osmosis (RO) water treatment equipment utilizes the selective permeability of a semi-permeable membrane. Under high external pressure, water molecules are forced to pass through the RO membrane, while pollutants such as dissolved salts, heavy metal ions, organic matter, bacteria, and viruses are trapped and discharged through a wastewater pipe, thus purifying the water. During operation, a booster pump provides sufficient pressure to force raw water through the RO membrane, separating impurities, producing pure water, and discharging wastewater.
[0003] Scale buildup is a major problem affecting the long-term operation of equipment. There are many reasons for scale buildup. For example, if the raw water contains hardness components such as calcium and magnesium ions, these ions may form scale on the surface of the RO membrane during the reverse osmosis process, reducing the membrane's permeability and thus reducing filtration efficiency. In addition, if some wastewater remains inside the membrane tank and pipelines during equipment operation and is not discharged in time, impurities in this residual water will accumulate and accelerate scale formation. In multi-stage filtration systems, increased water flow resistance can easily lead to insufficient water pressure in the downstream membrane tank, preventing some filtration units from achieving optimal filtration performance and further exacerbating the scale buildup problem.
[0004] Therefore, there is an urgent need for a scale-preventing reverse osmosis water treatment device to solve the technical defects such as scale deposition and wastewater retention. Utility Model Content
[0005] The purpose of this invention is to provide a scale-preventing reverse osmosis water treatment device to solve the problems of scale deposition and wastewater retention mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a scale-resistant reverse osmosis water treatment device, comprising a base and a support. The support is fixedly connected to the top of the base. A raw water tank is arranged on the left side of the support, and a water storage tank is arranged on the right side of the support. A multi-stage reverse osmosis filtration assembly is arranged between the raw water tank and the water storage tank. The multi-stage reverse osmosis filtration assembly includes a first osmosis membrane tank, a second osmosis membrane tank, a third osmosis membrane tank, and a fourth osmosis membrane tank. Each set of osmosis membrane tanks is equipped with a detachable RO osmosis membrane. The top of the RO osmosis membrane is provided with a pipe opening. Each set of osmosis membrane tanks is provided with a descaling port at the bottom. The bottom of the descaling port is an installation head. A valve is installed at the installation head. A connecting pipe is fixedly connected to the bottom of the installation head. A threaded connector is fixedly connected to the bottom of the connecting pipe.
[0007] As a further technical solution of this utility model, the bottom of the RO membrane is provided with an outlet, and the outlets are all connected to a water pump through pipes. The first, second, third and fourth membrane tanks are connected in series through pipes.
[0008] As a further technical solution of this utility model, a sealing cover plate is installed at the bottom of the first permeation membrane tank, and a sealing bolt is fixedly connected between the sealing cover plate and the first permeation membrane tank.
[0009] As a further technical solution of this utility model, the first, second, third, and fourth permeation membrane tanks are fitted with pipes through threaded connectors, and the threaded connectors are threadedly connected to the fitted pipes.
[0010] As a further technical solution of this utility model, a base is provided below the bracket, a wastewater tank is installed on the base, and a drain pipe is connected to the right side of the wastewater tank.
[0011] As a further technical solution of this utility model, a platform is provided on the top left side of the bracket, and a booster pump is placed on the platform. The raw water tank is connected to the input end of the booster pump through a pipe. An inlet pipe is connected between the output end of the booster pump and the first permeate membrane tank. An outlet pipe is connected between the output end of the fourth permeate membrane tank and the water storage tank.
[0012] As a further technical solution of this utility model, the first permeation membrane tank, the second permeation membrane tank, the third permeation membrane tank and the fourth permeation membrane tank are all cylinders and are distributed at equal intervals at the support.
[0013] As a further technical solution of this utility model, the raw water tank is connected to the wastewater source, and the water storage tank is connected to the subsequent treatment equipment.
[0014] Compared with the prior art, the beneficial effects of this utility model are: the scale-preventing reverse osmosis water treatment equipment not only reduces scale deposition and enables quick removal of the RO membrane for cleaning or replacement, but also maintains water pressure and filtration efficiency.
[0015] (1) By setting up a water outlet, sealing cover plate, sealing bolt, valve, connecting pipe, threaded connector and descaling port, this device independently designs the descaling port and adds a special connecting pipe to discharge waste into the wastewater tank, ensuring that the wastewater can be discharged quickly after the equipment stops running, reducing the risk of scaling on the surface of the reverse osmosis membrane and inside the pipe. In addition, by independently equipping multiple sets of osmosis membrane tanks with water pumps, the pressure can be adjusted separately between different filtration levels to prevent water flow from stagnating in the multi-stage filtration process and reduce the problem of dirt deposition.
[0016] (2) The reverse osmosis membrane is equipped with an outlet, sealing cover, sealing bolts, valves, connecting pipes, threaded connectors, and descaling port. During long-term use, the filtered water may contain trace amounts of calcium and magnesium ions and other deposits, and a certain fouling layer will form on the membrane surface. It needs to be replaced and cleaned regularly. The bottom of the membrane tank is sealed with a sealing cover. The descaling port can be removed by opening the sealing cover, and the RO membrane can be removed separately from the bottom. This makes it easy to remove the descaling port directly from the bottom, so as to quickly take out the RO membrane for cleaning or replacement.
[0017] (3) By setting up a water pump, the reverse osmosis equipment needs to maintain sufficient osmotic pressure to effectively filter impurities in the water. This device ensures that each filtration unit can maintain a stable water pressure by independently setting up a water pump on each set of membrane tanks, so that the water flow can pass through all reverse osmosis membranes evenly and avoid the filtration efficiency of some membrane tanks from decreasing due to the reduction of water pressure. Attached Figure Description
[0018] Figure 1 This is a front view cross-sectional structural diagram of the present invention;
[0019] Figure 2 This is a front view cross-sectional structural diagram of the first permeation membrane tank of this utility model;
[0020] Figure 3 This is a front view structural diagram of the first permeation membrane tank of this utility model;
[0021] Figure 4 This is a top view schematic diagram of the wastewater tank structure of this utility model.
[0022] In the diagram: 1. Base; 2. Bracket; 3. Raw water tank; 4. Platform; 5. Booster pump; 6. Inlet pipe; 7. First osmosis membrane tank; 8. Second osmosis membrane tank; 9. Third osmosis membrane tank; 10. Fourth osmosis membrane tank; 11. Outlet pipe; 12. Storage tank; 13. Water pump; 14. Mounting head; 15. Wastewater tank; 16. Drain pipe; 17. RO membrane; 18. Pipe port; 19. Outlet; 20. Sealing cover; 21. Sealing bolt; 22. Valve; 23. Connecting pipe; 24. Threaded connector; 25. Descaling port. Detailed Implementation
[0023] 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.
[0024] Please see Figure 1-4 An embodiment of this utility model provides: a scale-resistant reverse osmosis water treatment device, including a base 1 and a support 2. The support 2 is fixedly connected to the top of the base 1. A raw water tank 3 is arranged on the left side of the support 2, and a water storage tank 12 is arranged on the right side of the support 2. A multi-stage reverse osmosis filtration assembly is arranged between the raw water tank 3 and the water storage tank 12. The multi-stage reverse osmosis filtration assembly includes a first osmosis membrane tank 7, a second osmosis membrane tank 8, a third osmosis membrane tank 9, and a fourth osmosis membrane tank 10. Each set of osmosis membrane tanks is equipped with a detachable RO osmosis membrane 17. The top of the RO osmosis membrane 17 is provided with a pipe port 18. Each set of osmosis membrane tanks is provided with a descaling port 25 at the bottom. The bottom of the descaling port 25 is an installation head 14. A valve 22 is installed at the installation head 14. A connecting pipe 23 is fixedly connected to the bottom of the installation head 14. A threaded connector 24 is fixedly connected to the bottom of the connecting pipe 23. The base 1 is arranged below the support 2. A wastewater tank 15 is installed at the base 1. A drain pipe 16 is connected to the right side of the wastewater tank 15.
[0025] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, each set of RO membrane tanks is equipped with a descaling port 25 at the bottom. Multiple sets of RO membrane tanks are connected in series by connecting pipes 23, and the filtered water is extracted separately by water pump 13 for multi-stage filtration. After the equipment stops working, valve 22 is opened and water pump 13 is turned off. The wastewater remaining in the RO membrane 17 enters the connecting pipe 23 from the installation head 14 and flows into the wastewater tank 15 through the added pipe.
[0026] A sealing cover plate 20 is installed at the bottom of the first permeation membrane tank 7. A sealing bolt 21 is fixedly connected between the sealing cover plate 20 and the first permeation membrane tank 7. The first permeation membrane tank 7, the second permeation membrane tank 8, the third permeation membrane tank 9 and the fourth permeation membrane tank 10 are connected to pipes through threaded connectors 24. The threaded connectors 24 are connected to the pipes through threads.
[0027] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, the bottom ends of the first osmosis membrane tank 7, the second osmosis membrane tank 8, the third osmosis membrane tank 9 and the fourth osmosis membrane tank 10 are all sealed by sealing cover plates 20. By opening the sealing cover plates 20, the descaling port 25 can be removed and the RO osmosis membrane 17 can be removed separately from the bottom. This makes it easy to remove the descaling port 25 directly from the bottom, so as to quickly take out the RO osmosis membrane 17 for cleaning or replacement.
[0028] The RO membrane 17 has an outlet 19 at its bottom, and the outlets 19 are all connected to the water pump 13 through pipes. The first membrane tank 7, the second membrane tank 8, the third membrane tank 9 and the fourth membrane tank 10 are connected in series through pipes. The top left of the support 2 has a platform 4, and a booster pump 5 is placed on the platform 4. The raw water tank 3 is connected to the input end of the booster pump 5 through a pipe. The output end of the booster pump 5 is connected to the first membrane tank 7 through an inlet pipe 6. The output end of the fourth membrane tank 10 is connected to the water storage tank 12 through an outlet pipe 11. The first membrane tank 7, the second membrane tank 8, the third membrane tank 9 and the fourth membrane tank 10 are all cylinders and are evenly distributed at the support 2. The raw water tank 3 is connected to the wastewater source and the water storage tank 12 is connected to the subsequent treatment equipment.
[0029] Specifically, such as Figure 1 As shown, a first osmosis membrane tank 7, a second osmosis membrane tank 8, a third osmosis membrane tank 9, and a fourth osmosis membrane tank 10 are installed between the raw water tank 3 and the storage tank 12. Each group of osmosis membrane tanks is equipped with a water pump 13, so that the water flow can pass through all the reverse osmosis membranes evenly and avoid the filtration efficiency of some osmosis membrane tanks from decreasing due to the reduction of water pressure.
[0030] Working Principle: In use, wastewater is first drawn from the raw water tank 3, pressurized by the booster pump 5, and then sent to the first osmosis membrane tank 7. It is then treated through the RO osmosis membranes 17 within the first, second, third, and fourth osmosis membrane tanks 7, circulating through these membranes. Under high pressure, water molecules can pass through the RO osmosis membranes 17, while dissolved salts, heavy metal ions, organic matter, bacteria, viruses, and other impurities are trapped and discharged. In other words, when the aqueous solution passes through the semi-permeable membrane, water molecules naturally diffuse towards the side with higher concentration; however, applying high pressure forces the water molecules to diffuse in the opposite direction. Water is purified through the RO membrane 17. After each treatment in a set of membrane tanks, the wastewater is pumped into the next set of membrane tanks by the water pump 13 until the treatment is complete. The wastewater is then sent to the storage tank 12 through the outlet pipe 11. After the equipment stops working, the valve 22 is opened and the water pump 13 is turned off. The wastewater remaining in the RO membrane 17 enters the connecting pipe 23 through the installation head 14 and flows into the wastewater tank 15 through the added pipe. This device has an independently designed descaling port 25 and an added dedicated connecting pipe 23 to discharge wastewater into the wastewater tank 15, ensuring that the wastewater can be discharged quickly after the equipment stops running.
[0031] 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 illustrative and non-limiting in all respects, 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. A scale preventing reverse osmosis water treatment apparatus comprising a base (1) and a support (2), characterized in that: The base (1) top fixedly connected with support (2), the support (2) left side is provided with raw water tank (3), the support (2) right side is provided with water storage tank (12), the raw water tank (3) and water storage tank (12) between multiple reverse osmosis filtration components are provided, multiple reverse osmosis filtration components include first permeation membrane tank (7), second permeation membrane tank (8), third permeation membrane tank (9) and fourth permeation membrane tank (10), every group permeation membrane tank is mounted with detachable RO permeation membrane (17), the top of RO permeation membrane (17) is provided with pipe orifice (18), every group permeation membrane tank bottom is provided with descaling mouth (25), the descaling mouth (25) bottom is mounting head (14), the mounting head (14) is installed with valve (22), the mounting head (14) bottom fixedly connected with connecting pipe (23), the connecting pipe (23) bottom fixedly connected with threaded connector (24).
2. The scale-inhibiting reverse osmosis water treatment apparatus according to claim 1, characterized by: The bottom of the RO permeation membrane (17) is provided with a water outlet (19), the water outlet (19) is connected to the water pump (13) by pipeline, the first permeation membrane tank (7), the second permeation membrane tank (8), the third permeation membrane tank (9) and the fourth permeation membrane tank (10) are connected by pipeline.
3. The scale-inhibiting reverse osmosis water treatment apparatus according to claim 1, characterized by: The bottom of the first permeation membrane tank (7) is provided with a sealing cover plate (20), and the sealing cover plate (20) and the first permeation membrane tank (7) are fixedly connected with a sealing bolt (21).
4. The scale-inhibiting reverse osmosis water treatment apparatus according to claim 1, characterized by: The first permeation membrane tank (7), the second permeation membrane tank (8), the third permeation membrane tank (9) and the fourth permeation membrane tank (10) are connected by the threaded connector (24) and the added pipeline, and the threaded connector (24) and the added pipeline are connected by threads.
5. The scale-inhibiting reverse osmosis water treatment apparatus according to claim 1, characterized by: The bottom of the support (2) is provided with a base (1), and the base (1) is provided with a wastewater tank (15), and the right side of the wastewater tank (15) is connected with a drain pipe (16).
6. The scale-inhibiting reverse osmosis water treatment apparatus according to claim 1, characterized by: The top left side of the support (2) is provided with a platform (4), and the platform (4) is placed with a pressure pump (5), and the raw water tank (3) and the pressure pump (5) are connected by pipeline, and the output end of the pressure pump (5) and the first permeation membrane tank (7) are connected with a water inlet pipe (6), and the output end of the fourth permeation membrane tank (10) and the water storage tank (12) are connected with a water outlet pipe (11).
7. The scale-inhibiting reverse osmosis water treatment apparatus according to claim 1, characterized by: The first permeation membrane tank (7), the second permeation membrane tank (8), the third permeation membrane tank (9) and the fourth permeation membrane tank (10) are all cylindrical, and are distributed at equal intervals in the support (2).
8. The scale-inhibiting reverse osmosis water treatment apparatus according to claim 1, characterized by: The raw water tank (3) is connected with a wastewater source, and the water storage tank (12) is connected with a subsequent treatment equipment.