Reverse osmosis membrane assembly without fresh water separation net

Abstract

The utility model discloses a reverse osmosis membrane component without a fresh water separating net, which relates to the technical field of RO (reverse osmosis) membranes and comprises a shell, an RO membrane is arranged in the shell, a water collecting pipe is arranged in the RO membrane, the surface of the shell is rotatably connected with a sealing cover through threads, a water inlet is arranged on the surface of the sealing cover, and a water outlet is arranged on the surface of the water inlet. A collecting box is fixed to the other end, opposite to the sealing cover, of the shell, a purified water pipe is fixed to the middle end of the collecting box, a concentrated water pipe is fixed to the lower end of the collecting box, a partition plate is arranged in the collecting box, and an open groove is formed in the surface of the partition plate; water can directly flow to the outer permeable membrane through the outer permeable membrane with the length being half of the length of the inner permeable membrane, so that the amount of filtered water at each position of the reverse osmosis membrane can be kept consistent, the service life of the reverse osmosis membrane is prolonged, and meanwhile, concentrated water at each position in the collecting box can uniformly flow through the grooves in the upper ends of the partition plates; and the concentrated water is ensured to flow more smoothly.

Description

Technical Field

[0001] The utility model relates to the technical field of RO membranes, in particular to a fresh water separator-free reverse osmosis membrane component. Background Art

[0002] RO is the abbreviation of Reverse Osmosis, which means reverse osmosis in Chinese. Generally, water flows from low concentration to high concentration. Once water is pressurized, it will flow from high concentration to low concentration, which is the so-called reverse osmosis principle: Since the pore size of the RO membrane is one millionth of a hair (0.0001 micron), it is generally invisible to the naked eye, and bacteria and viruses are 5000 times larger than it. Therefore, only water molecules and some mineral ions can pass through (the ions that pass through have no loss-making orientation), and other impurities and heavy metals are discharged through the wastewater pipe. All seawater desalination processes and astronaut wastewater recycling and treatment use this method, so the RO membrane is also called the high-tech "artificial kidney" outside the body.

[0003] When the existing RO membrane filters water, one end is always in contact with the filtered water, so the end close to the water inlet will be blocked by the filtered matter, while the end far from the water inlet is relatively clean, which affects the service life of the reverse osmosis membrane. Therefore, a reverse osmosis membrane assembly without fresh water screen is proposed to solve the above problem. Summary of the invention

[0004] The utility model provides a fresh water separator-free reverse osmosis membrane component, which solves the above technical problems.

[0005] In order to solve the above technical problems, the utility model provides a fresh water separator-free reverse osmosis membrane assembly, comprising an outer shell, an RO membrane is arranged inside the outer shell, a water collecting pipe is arranged inside the RO membrane, a sealing cover is connected to the surface of the outer shell by threaded rotation, a water inlet is arranged on the surface of the sealing cover, a collecting box is fixed to the other end of the outer shell opposite to the sealing cover, a purified water pipe is fixed to the middle end of the collecting box, a concentrated water pipe is fixed to the lower end of the collecting box, a partition is arranged inside the collecting box, and a groove is arranged on the surface of the partition.

[0006] Preferably, the end of the water collecting pipe closer to the sealing cover is closed, and the end of the water collecting pipe closer to the collecting box is open.

[0007] Preferably, the surface of the water collecting pipe is provided with openings and the openings are located to fit the inner surface of the RO membrane.

[0008] Preferably, the purified water pipe is arranged corresponding to the opening on the surface of the water collecting pipe, and the partition is located at one-third of the interior of the collecting box.

[0009] Preferably, the RO membrane comprises a fixing ring, an inner transparent membrane is fixed in the middle of the fixing ring, an outer transparent membrane is arranged on the surface of the inner transparent membrane, and a positioning net is arranged on the surface of the outer transparent membrane.

[0010] Preferably, the length of the outer permeable membrane is half of that of the inner permeable membrane, and the interior of the inner permeable membrane is fixed to the water collecting pipe.

[0011] Compared with the related art, the reverse osmosis membrane assembly without fresh water screen provided by the utility model has the following beneficial effects:

[0012] The utility model allows water to flow directly to the outer permeable membrane through an outer permeable membrane having a length half that of the inner permeable membrane, thereby keeping the amount of filtered water at various positions of the reverse osmosis membrane consistent, thereby extending the service life of the reverse osmosis membrane; at the same time, the partition plate enables concentrated water at various positions inside the collection box to flow evenly through the grooves at the upper end, thereby ensuring that the flow of concentrated water is smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the main structure diagram of the utility model;

[0014] Figure 2 It is a cutaway structural diagram of the utility model;

[0015] Figure 3 It is a cutaway structural diagram of the collection box in the utility model;

[0016] Figure 4 This is a cross-sectional structural diagram of the RO membrane in the present utility model.

[0017] Numbers in the figure: 1. outer shell; 2. sealing cover; 3. water inlet; 4. concentrated water pipe; 5. collecting box; 6. purified water pipe; 7. water collecting pipe; 8. RO membrane; 9. partition; 10. slot; 81. fixing ring; 82. inner transparent membrane; 83. outer transparent membrane; 84. positioning net. DETAILED DESCRIPTION

[0018] Example, by Figure 1-4 The utility model includes a freshwater separator-free reverse osmosis membrane assembly, including an outer shell 1, an RO membrane 8 is arranged inside the outer shell 1, a water collecting pipe 7 is arranged inside the RO membrane 8, a sealing cover 2 is connected to the surface of the outer shell 1 by threaded rotation, a water inlet 3 is arranged on the surface of the sealing cover 2, a collecting box 5 is fixed to the other end of the outer shell 1 relative to the sealing cover 2, a purified water pipe 6 is fixed to the middle end of the collecting box 5, a concentrated water pipe 4 is fixed to the lower end of the collecting box 5, a partition 9 is arranged inside the collecting box 5, and a groove 10 is arranged on the surface of the partition 9.

[0019] The end of the water collecting pipe 7 closer to the sealing cover 2 is closed, and the end of the water collecting pipe 7 closer to the collecting box 5 is open.

[0020] The surface of the water collecting pipe 7 is provided with openings, and the openings are located in contact with the inner surface of the RO membrane 8 .

[0021] The purified water pipe 6 is arranged corresponding to the openings on the surface of the water collecting pipe 7 , and the partition plate 9 is located at one third of the interior of the collecting box 5 .

[0022] The RO membrane 8 comprises a fixing ring 81 , an inner transparent membrane 82 is fixed in the middle of the fixing ring 81 , an outer transparent membrane 83 is arranged on the surface of the inner transparent membrane 82 , and a positioning net 84 is arranged on the surface of the outer transparent membrane 83 .

[0023] The length of the outer permeable membrane 83 is half of that of the inner permeable membrane 82 , and the interior of the inner permeable membrane 82 is fixed to the water collecting pipe 7 .

[0024] Water enters from the water inlet 3. Since the water collecting pipe 7 near the water inlet 3 is closed, water can only enter the water collecting pipe 7 through the inner permeable membrane 82. The purified water is discharged from the purified water pipe 6 along the water collecting pipe 7. The remaining water follows the flow channel inside the inner permeable membrane 82 to take away the residual filtrate in the inner permeable membrane 82 and enter the collecting box 5. The concentrated water passes through the groove 10 on the surface of the partition 9 or directly enters the concentrated water pipe 4, thereby discharging the concentrated water.

Claims

1. A freshwater screen-free reverse osmosis membrane assembly, comprising a housing (1), characterized in that: An RO membrane (8) is arranged inside the shell (1), a water collecting pipe (7) is arranged inside the RO membrane (8), a sealing cover (2) is rotatably connected to the surface of the shell (1) by means of a thread, a water inlet (3) is arranged on the surface of the sealing cover (2), a collecting box (5) is fixed to the other end of the shell (1) relative to the sealing cover (2), a purified water pipe (6) is fixed to the middle end of the collecting box (5), a concentrated water pipe (4) is fixed to the lower end of the collecting box (5), a partition (9) is arranged inside the collecting box (5), and a groove (10) is arranged on the surface of the partition (9).

2. A freshwater screen-free reverse osmosis membrane assembly according to claim 1, characterized in that: The end of the water collecting pipe (7) closer to the sealing cover (2) is closed, and the end of the water collecting pipe (7) closer to the collection box (5) is open.

3. A freshwater screen-free reverse osmosis membrane assembly according to claim 2, characterized in that: The surface of the water collecting pipe (7) is provided with openings, and the openings are located in contact with the inner surface of the RO membrane (8).

4. A freshwater screen-free reverse osmosis membrane assembly according to claim 3, characterized in that: The purified water pipe (6) is arranged corresponding to the openings on the surface of the water collecting pipe (7), and the partition plate (9) is located at one third of the interior of the collecting box (5).

5. A freshwater screen-free reverse osmosis membrane assembly according to claim 1, characterized in that: The RO membrane (8) comprises a fixing ring (81), an inner transparent membrane (82) is fixed in the middle of the fixing ring (81), an outer transparent membrane (83) is arranged on the surface of the inner transparent membrane (82), and a positioning net (84) is arranged on the surface of the outer transparent membrane (83).

6. A freshwater screen-free reverse osmosis membrane assembly according to claim 5, characterized in that: The length of the outer permeable membrane (83) is half that of the inner permeable membrane (82), and the interior of the inner permeable membrane (82) is fixed to the water collecting pipe (7).

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