RO filter element structure

Abstract

The utility model discloses an RO (reverse osmosis) filter element structure, which is applied to the field of industrial sewage treatment and comprises a shell, a water inlet pipe is arranged on the shell, a detachable sealing mechanism is arranged at the bottom of the shell, and a filtering mechanism is arranged in the shell. Firstly, the shell is sealed through the sealing mechanism, the filtering mechanism is fixed in the shell, industrial sewage can be filtered through the filtering mechanism, the sealing mechanism and the shell are detachably arranged, the filtering mechanism is convenient to replace, and the shell and the sealing bottom cover can be detached; the RO membrane in the shell can be conveniently replaced.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial sewage treatment, and particularly relates to an RO filter element structure. Background Art

[0002] As the development of efficient and environmentally friendly industrial wastewater treatment technology has become a top priority, among the many wastewater treatment technologies, reverse osmosis technology has attracted widespread attention due to its efficient desalination performance and excellent pollutant removal ability.

[0003] The Chinese utility model patent currently announced as: CN208809803U discloses a sealing structure of an RO filter element, which is provided with a shell, and the shell is provided with pipes for water inlet and outlet, and the outer peripheral sleeve of the pipe is provided with a sealing ring assembly. There is no parting line on the outer periphery of the pipe in the utility model, which avoids the influence of the parting line on the sealing and ensures the filtering performance of the RO filter element.

[0004] The shell in this patent is an integrally formed setting, which can increase the sealing of the RO filter element structure. However, when the RO membrane is used for a long time, impurities are likely to clog the RO membrane. However, the integrally formed setting of the shell makes it inconvenient to replace the RO membrane inside the shell. Utility Model Content

[0005] The purpose of the utility model is to provide an RO filter element structure, which solves the problem that the shell in the existing RO filter element structure is an integrally formed setting. Although it can increase the sealing performance of the RO filter element structure, when the RO membrane is used for a long time, impurities are easy to clog the RO membrane. However, the shell is integrally formed, which makes it inconvenient to replace the RO membrane inside the shell.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: an RO filter element structure, comprising a shell, a water inlet pipe is arranged on the shell, a detachable sealing mechanism is arranged at the bottom of the shell, and a filtering mechanism is arranged inside the shell;

[0007] The sealing mechanism includes a sealing bottom cover, an installation cavity, a first sealing block, a second sealing block, a slot, a block and a bolt. The sealing bottom cover is arranged at the lower end of the shell, the installation cavity is arranged at the lower end of the shell, the first sealing block is arranged inside the installation cavity, the second sealing block is arranged on the sealing bottom cover, the slot is arranged on the first sealing block, the block is arranged on the second sealing block, the cross-sectional area of ​​the block is larger than the cross-sectional area of ​​the slot, the first sealing block, the second sealing block and the block are all made of rubber, and the bolt passes through the side walls of the shell and the sealing bottom cover.

[0008] By adopting the above technical scheme, by setting up a shell, a water inlet pipe, a sealing mechanism and a filtering mechanism, when in use, the shell is first sealed by the sealing mechanism, and the filtering mechanism is fixed inside the shell, and industrial sewage can be filtered and treated by the filtering mechanism, and the sealing mechanism and the shell are detachably arranged, which is convenient for replacing the filtering mechanism, wherein the sealing mechanism includes a sealing bottom cover, an installation cavity, a first sealing block, a second sealing block, a slot, a block and a bolt. When assembling, first align the block on the second sealing block with the slot on the first sealing block, and then use the elasticity of the rubber to press the block into the slot. Since the cross-sectional area of ​​the block is larger than the cross-sectional area of ​​the slot, when the block is completely entered into the slot , it will fit tightly in the card slot due to the elasticity of the rubber to form a preliminary seal, and then the sealing bottom cover will be fixed to the shell by bolts. The tightening effect of the bolts will further ensure the tight fit between the first sealing block and the second sealing block, thereby enhancing the overall sealing. Since the first sealing block, the second sealing block and the card block are all made of rubber, a soft sealing layer will be formed on the contact surface between them, which effectively prevents water leakage during the filtration process. At the same time, the elasticity of the rubber can also adapt to certain deformation and pressure changes, ensuring that good sealing performance is always maintained during use, and the shell and the sealing bottom cover are detachable, which can facilitate the replacement of the RO membrane inside the shell.

[0009] Further: the filtering mechanism includes a connecting column, an RO membrane, an end cover, a clean water hole and a clean water outlet, the connecting column is arranged inside the outer shell, one end of the connecting column extends to the outside of the sealed bottom cover, the RO membrane is arranged on the connecting column, the end cover is arranged at both ends of the RO membrane, the clean water hole is arranged on the connecting column, the number of the clean water holes is several and they are arranged linearly, and the clean water outlet is arranged at one end of the connecting column.

[0010] By adopting the above technical solution, by setting a connecting column, an RO membrane, an end cover, a clean water hole and a clean water outlet, when industrial sewage enters the shell through the water inlet pipe, the water will first contact the RO membrane. Since the pore size of the RO membrane is very small, only water molecules and some extremely small solutes can pass through, and most of the impurities are retained on one side of the RO membrane. The pure water filtered by the RO membrane will flow into the inside of the connecting column through the clean water hole, and finally flow out from the clean water outlet for users to use. The end cover is provided to ensure the sealing between the RO membrane and the connecting column, prevent unfiltered water from passing directly, and ensure the water quality of the outlet water.

[0011] Further: a sliding cavity is provided at the upper end of the shell, a pressure plate is provided in the sliding cavity, a threaded rod is provided on the pressure plate, the threaded rod is threadably connected to the shell, the other end of the threaded rod extends to the outside of the shell, and a rotating handle is provided on the threaded rod.

[0012] By adopting the above technical solution, a sliding cavity, a pressure plate, a threaded rod and a rotating handle are set. When the RO membrane enters the interior of the shell, the threaded rod is first rotated by rotating the handle. Since the threaded rod is rotatably connected with the shell thread, the threaded rod can drive the pressure plate to slide in the sliding cavity, and then the pressure plate squeezes the end cover. Through the cooperative extrusion of the pressure plate and the sealing bottom cover, the RO membrane can be fixed inside the shell.

[0013] Further: a water guide plate is arranged inside the shell, and the water guide plate is arranged in a spiral shape.

[0014] By adopting the above technical solution, a water guide plate is set up, when industrial sewage enters the interior of the shell, it can be guided by the water guide plate. Since the water guide plate is set in a spiral shape, the industrial sewage can be in contact with the RO membrane on all sides, which can increase the purification efficiency of the RO membrane.

[0015] Further: the shell is provided with connecting ends, the number of the connecting ends is four and they are arranged circumferentially, and the connecting ends are provided with connecting holes.

[0016] By adopting the above technical solution, by providing the connection end and the connection hole, when in use, the shell can be fixed through the coordinated use of the connection end and the connection hole, thereby improving the stability of the shell.

[0017] Furthermore: a sewage outlet pipe is arranged on the sealed bottom cover, and the sewage outlet pipe extends to the interior of the shell.

[0018] By adopting the above technical solution and setting a sewage outlet pipe, after the industrial sewage is filtered, the sewage can be discharged from the housing through the sewage outlet pipe, thereby preventing the sewage from accumulating inside the housing.

[0019] Further: the rotating handle is provided with anti-skid grooves, and the number of the anti-skid grooves is several and arranged in a circle.

[0020] By adopting the above technical solution and providing the anti-skid groove, the anti-skid groove can increase the friction between the staff and the rotating handle during use, so that the rotating handle can be rotated better.

[0021] In summary, the utility model has the following beneficial effects:

[0022] By setting a sealing bottom cover, a mounting cavity, a first sealing block, a second sealing block, a slot, a block and a bolt, during assembly, the block on the second sealing block is first aligned with the slot on the first sealing block, and then the block is pressed into the slot by using the elasticity of the rubber. Since the cross-sectional area of ​​the block is larger than the cross-sectional area of ​​the slot, when the block is completely inserted into the slot, it will fit tightly in the slot due to the elasticity of the rubber, forming a preliminary seal, and then the sealing bottom cover is fixed to the housing by bolts. The tightening action of the bolts will further ensure the tight fit between the first sealing block and the second sealing block, thereby enhancing the overall sealing performance. Since the first sealing block, the second sealing block and the block are all made of rubber, a soft sealing layer will be formed on the contact surface between them, effectively preventing the leakage of the water source during the filtration process. At the same time, the elasticity of the rubber can also adapt to certain deformations and pressure changes, ensuring that good sealing performance is always maintained during use, and the housing and the sealing bottom cover are detachable, which can facilitate the replacement of the RO membrane inside the housing.

[0023] By setting the connecting column, RO membrane, end cover, clean water hole and clean water outlet, when the industrial sewage enters the shell through the water inlet pipe, the water will first contact the RO membrane. Since the pore size of the RO membrane is very small, only water molecules and some extremely small solutes can pass through, and most of the impurities are retained on one side of the RO membrane. The pure water filtered by the RO membrane will flow into the connecting column through the clean water hole, and finally flow out from the clean water outlet for users to use. The end cover is set to ensure the sealing between the RO membrane and the connecting column, prevent unfiltered water from passing directly, and ensure the water quality of the outlet water.

[0024] Based on the above improvements, the overall technical effect achieved by the device is that the outer shell and the sealed bottom cover can be disassembled, and when the RO membrane is clogged after long-term use, the RO membrane inside the outer shell can be easily replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a left view of the utility model;

[0027] Figure 3 The utility model Figure 2 The AA in the middle produces a three-dimensional cross-section view;

[0028] Figure 4 It is a structural schematic diagram of the pressing plate, the threaded rod and the rotating handle of the utility model;

[0029] Figure 5 The utility model Figure 3 Enlarged view of point A in the middle.

[0030] In the figure, 1. outer shell; 2. water inlet pipe; 3. sealing mechanism; 4. filtering mechanism; 5. sliding cavity; 6. pressure plate; 7. threaded rod; 8. rotating handle; 9. water guide plate; 10. connecting end; 11. connecting hole; 12. sewage outlet pipe; 13. anti-slip groove; 301. sealing bottom cover; 302. installation cavity; 303. first sealing block; 304. second sealing block; 305. slot; 306. block; 307. bolt; 401. connecting column; 402. RO membrane; 403. end cover; 404. clean water hole; 405. clean water outlet. DETAILED DESCRIPTION

[0031] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0032] Example:

[0033] See also Figure 1-Figure 5 The utility model provides a technical solution: an RO filter element structure, comprising a shell 1, a water inlet pipe 2 is arranged on the shell 1, a detachable sealing mechanism 3 is arranged at the bottom of the shell 1, and a filtering mechanism 4 is arranged inside the shell 1;

[0034] The sealing mechanism 3 includes a sealing bottom cover 301, an installation cavity 302, a first sealing block 303, a second sealing block 304, a slot 305, a block 306 and a bolt 307. The sealing bottom cover 301 is arranged at the lower end of the shell 1, the installation cavity 302 is arranged at the lower end of the shell 1, the first sealing block 303 is arranged inside the installation cavity 302, the second sealing block 304 is arranged on the sealing bottom cover 301, the slot 305 is arranged on the first sealing block 303, the block 306 is arranged on the second sealing block 304, the cross-sectional area of ​​the block 306 is greater than the cross-sectional area of ​​the slot 305, the first sealing block 303, the second sealing block 304 and the block 306 are all made of rubber, and the bolt 307 passes through the side walls of the shell 1 and the sealing bottom cover 301.

[0035] By providing a housing 1, a water inlet pipe 2, a sealing mechanism 3 and a filtering mechanism 4, when in use, the housing 1 is first sealed by the sealing mechanism 3, and the filtering mechanism 4 is fixed inside the housing 1, so that industrial sewage can be filtered and treated by the filtering mechanism 4, and the sealing mechanism 3 and the housing 1 are detachably arranged, so that the filtering mechanism 4 can be easily replaced;

[0036] During assembly, first align the block 306 on the second sealing block 304 with the slot 305 on the first sealing block 303, and then use the elasticity of the rubber to press the block 306 into the slot 305. Since the cross-sectional area of ​​the block 306 is larger than the cross-sectional area of ​​the slot 305, when the block 306 completely enters the slot 305, it will fit tightly in the slot 305 due to the elasticity of the rubber to form a preliminary seal. Then, the sealing bottom cover 301 is fixed to the housing 1 by the bolts 307. The tightening effect of the bolts 307 will further ensure that the first sealing block 304 is firmly fixed. 03 and the second sealing block 304 fit tightly together, thereby enhancing the overall sealing performance. Since the first sealing block 303, the second sealing block 304 and the card block 306 are all made of rubber, a soft sealing layer will be formed on the contact surface between them, which can effectively prevent water leakage during the filtration process. At the same time, the elasticity of rubber can also adapt to certain deformation and pressure changes, ensuring that good sealing performance is always maintained during use, and the outer shell 1 and the sealing bottom cover 301 are detachable, which can facilitate the replacement of the RO membrane 402 inside the outer shell 1.

[0037] refer to Figure 3 The filtering mechanism 4 includes a connecting column 401, an RO membrane 402, an end cover 403, a clean water hole 404 and a clean water outlet 405. The connecting column 401 is arranged inside the outer shell 1, and one end of the connecting column 401 extends to the outside of the sealed bottom cover 301. The RO membrane 402 is arranged on the connecting column 401, and the end cover 403 is arranged at both ends of the RO membrane 402. The clean water hole 404 is arranged on the connecting column 401. The number of the clean water holes 404 is several and they are arranged linearly. The clean water outlet 405 is arranged at one end of the connecting column 401.

[0038] By setting the connecting column 401, RO membrane 402, end cover 403, clean water hole 404 and clean water outlet 405, when industrial sewage enters the shell 1 through the water inlet pipe 2, the water will first contact the RO membrane 402. Since the pore size of the RO membrane 402 is very small, only water molecules and some extremely small solutes can pass through, and most of the impurities are retained on one side of the RO membrane 402. The pure water filtered by the RO membrane 402 will flow into the connecting column 401 through the clean water hole 404, and finally flow out from the clean water outlet 405 for users to use. The end cover 403 is provided to ensure the sealing between the RO membrane 402 and the connecting column 401, prevent unfiltered water from passing directly, and ensure the water quality of the outlet water.

[0039] refer to Figure 4A sliding cavity 5 is provided at the upper end of the shell 1, a pressing plate 6 is provided in the sliding cavity 5, a threaded rod 7 is provided on the pressing plate 6, the threaded rod 7 is threadedly rotatably connected to the shell 1, the other end of the threaded rod 7 extends to the outside of the shell 1, and a rotating handle 8 is provided on the threaded rod 7. By setting the sliding cavity 5, the pressing plate 6, the threaded rod 7 and the rotating handle 8, when the RO membrane 402 enters the inside of the shell 1, the threaded rod 7 is first rotated by rotating the handle 8. Since the threaded rod 7 is threadedly rotatably connected to the shell 1, the threaded rod 7 can drive the pressing plate 6 to slide in the sliding cavity 5, and then the pressing plate 6 squeezes the end cover 403. Through the cooperative extrusion of the pressing plate 6 and the sealing bottom cover 301, the RO membrane 402 can be fixed inside the shell 1.

[0040] refer to Figure 3 A water guide plate 9 is arranged inside the shell 1, and the water guide plate 9 is arranged in a spiral shape. By arranging the water guide plate 9, when industrial sewage enters the inside of the shell 1, it can be guided by the water guide plate 9. Since the water guide plate 9 is arranged in a spiral shape, the industrial sewage can be in contact with all sides of the RO membrane 402, which can increase the purification efficiency of the RO membrane 402.

[0041] refer to Figure 1 The outer shell 1 is provided with a connection end 10, and the number of the connection ends 10 is four and they are arranged circumferentially. The connection ends 10 are provided with connection holes 11. By setting the connection ends 10 and the connection holes 11, when in use, the outer shell 1 can be fixed by the coordinated use of the connection ends 10 and the connection holes 11, thereby improving the stability of the outer shell 1.

[0042] refer to Figure 1 A sewage outlet pipe 12 is provided on the sealed bottom cover 301, and the sewage outlet pipe 12 extends to the interior of the shell 1. By providing the sewage outlet pipe 12, after the industrial sewage is filtered, the sewage can be discharged from the shell 1 through the sewage outlet pipe 12, thereby preventing the sewage from accumulating inside the shell 1.

[0043] refer to Figure 1 The rotating handle 8 is provided with anti-skid grooves 13, and the number of the anti-skid grooves 13 is several and they are arranged circumferentially. By setting the anti-skid grooves 13, when in use, the anti-skid grooves 13 can increase the friction between the staff and the rotating handle 8, so that the rotating handle 8 can be rotated better.

[0044] Brief description of the usage process:

[0045] When in use, first, during assembly, align the block 306 on the second sealing block 304 with the slot 305 on the first sealing block 303, and then use the elasticity of the rubber to press the block 306 into the slot 305. Since the cross-sectional area of ​​the block 306 is larger than the cross-sectional area of ​​the slot 305, when the block 306 completely enters the slot 305, it will fit tightly in the slot 305 due to the elasticity of the rubber to form a preliminary seal, and then fix the sealing bottom cover 301 on the housing 1 by the bolt 307. The tightening effect of the bolt 307 will further ensure the first The sealing block 303 and the second sealing block 304 fit closely together, thereby enhancing the overall sealing performance. Since the first sealing block 303, the second sealing block 304 and the clamping block 306 are all made of rubber, a soft sealing layer is formed on the contact surface between them, which effectively prevents water leakage during the filtration process. At the same time, the elasticity of the rubber can also adapt to certain deformation and pressure changes, ensuring that good sealing performance is always maintained during use. In addition, the housing 1 and the sealing bottom cover 301 are detachable, which can facilitate the replacement of the RO membrane 402 inside the housing 1;

[0046] Then, when the industrial sewage enters the housing 1 through the water inlet pipe 2, the water will first contact the RO membrane 402. Since the pore size of the RO membrane 402 is very small, only water molecules and some extremely small solutes can pass through, while most of the impurities are trapped on one side of the RO membrane 402. The pure water filtered by the RO membrane 402 will flow into the connecting column 401 through the water purification hole 404, and finally flow out from the water purification outlet 405 for users to use. The end cover 403 is provided to ensure the sealing between the RO membrane 402 and the connecting column 401, prevent unfiltered water from passing directly, and ensure the water quality of the outlet water;

[0047] Then, when the RO membrane 402 enters the housing 1, the threaded rod 7 is rotated by rotating the handle 8. Since the threaded rod 7 is threadedly connected to the housing 1, the threaded rod 7 can drive the pressing plate 6 to slide in the sliding cavity 5, so that the pressing plate 6 squeezes the end cover 403. Through the cooperation and squeezing of the pressing plate 6 and the sealing bottom cover 301, the RO membrane 402 can be fixed inside the housing 1.

[0048] Finally, when the industrial sewage enters the interior of the housing 1 , it can be guided by the water guide plate 9 . Since the water guide plate 9 is spirally arranged, the industrial sewage can be in contact with all sides of the RO membrane 402 , thereby increasing the purification efficiency of the RO membrane 402 .

[0049] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An RO filter element structure, comprising a housing (1), characterized in that: The outer shell (1) is provided with a water inlet pipe (2), the bottom of the outer shell (1) is provided with a detachable sealing mechanism (3), and the interior of the outer shell (1) is provided with a filtering mechanism (4); The sealing mechanism (3) comprises a sealing bottom cover (301), a mounting cavity (302), a first sealing block (303), a second sealing block (304), a clamping groove (305), a clamping block (306) and a bolt (307); the sealing bottom cover (301) is arranged at the lower end of the housing (1); the mounting cavity (302) is arranged at the lower end of the housing (1); the first sealing block (303) is arranged inside the mounting cavity (302); the second sealing block (304) ) is arranged on the sealing bottom cover (301), the card slot (305) is arranged on the first sealing block (303), the card block (306) is arranged on the second sealing block (304), the cross-sectional area of ​​the card block (306) is larger than the cross-sectional area of ​​the card slot (305), the first sealing block (303), the second sealing block (304) and the card block (306) are all made of rubber material, and the bolt (307) passes through the side wall of the housing (1) and the sealing bottom cover (301).

2. The RO filter element structure according to claim 1, characterized in that: The filtering mechanism (4) comprises a connecting column (401), an RO membrane (402), an end cover (403), a water purification hole (404) and a water purification outlet (405); the connecting column (401) is arranged inside the housing (1); one end of the connecting column (401) extends to the outside of the sealing bottom cover (301); the RO membrane (402) is arranged on the connecting column (401); the end cover (403) is arranged at both ends of the RO membrane (402); the water purification hole (404) is arranged on the connecting column (401); the number of the water purification holes (404) is multiple and they are arranged linearly; and the water purification outlet (405) is arranged at one end of the connecting column (401).

3. The RO filter element structure according to claim 1, characterized in that: A sliding cavity (5) is provided at the upper end of the shell (1), a pressure plate (6) is provided in the sliding cavity (5), a threaded rod (7) is provided on the pressure plate (6), the threaded rod (7) is threadedly connected to the shell (1), the other end of the threaded rod (7) extends to the outside of the shell (1), and a rotating handle (8) is provided on the threaded rod (7).

4. The RO filter element structure according to claim 1, characterized in that: A water guide plate (9) is arranged inside the housing (1), and the water guide plate (9) is arranged in a spiral shape.

5. The RO filter element structure according to claim 1, characterized in that: The housing (1) is provided with connecting ends (10), the connecting ends (10) are four in number and arranged circumferentially, and the connecting ends (10) are provided with connecting holes (11).

6. The RO filter element structure according to claim 1, characterized in that: The sealed bottom cover (301) is provided with a sewage outlet pipe (12), and the sewage outlet pipe (12) extends to the interior of the outer shell (1).

7. The RO filter element structure according to claim 3, characterized in that: The rotating handle (8) is provided with anti-skid grooves (13), and the anti-skid grooves (13) are multiple in number and arranged in a circle.

Images