A RO membrane filter element structure

Abstract

The utility model relates to RO membrane filter core technical field, concretely relates to a kind of RO membrane filter core structure, including shell, water inlet pipeline and sewage discharge pipe, the outer wall of the shell is fixedly installed with water inlet pipeline and sewage discharge pipe respectively at upper and lower places, the first sealing cover of sealing assembly mechanism is matched with the clamping groove of shell, the clamping block positioning structure of RO membrane filter core main body and cover ring board, the quick separation and assembly of filter core and shell are realized, second sealing cover is by fixed clamping piece and movable clamping piece, screw and threaded sleeve etc. Component, respectively, the second sealing cover on the upper and lower ends of shell is applied to the pressure inwards, so that second sealing cover is tightly attached to the upper and lower ends of first sealing cover and shell, compared with the shell of traditional RO membrane filter core installation is integrated structure, the disassembly and assembly of RO membrane filter core are not facilitated, thereby reducing the large particle impurities etc. On the outer surface of RO membrane filter core, effectively avoid the RO membrane filter core structure and the decline of sewage purification effect.

Description

Technical Field

[0001] This utility model relates to the field of RO membrane filter technology, and specifically to an RO membrane filter structure. Background Technology

[0002] The core structure of an RO membrane filter cartridge revolves around the efficient removal of pollutants. It presents a multi-layered composite form, realizing three major functions from the outside to the inside: pretreatment, core filtration, and permeate flow. It typically uses polypropylene (PP) meltblown cotton or nylon mesh to filter out visible or tiny solid impurities in the water, such as silt, rust, suspended particles, and colloids, while also protecting the inner core membrane.

[0003] In existing technologies, external pressure is used to overcome the osmotic pressure of water molecules, allowing water molecules to penetrate the semi-permeable membrane while retaining almost all impurities. Untreated raw water (such as tap water) first enters the outermost layer of the filter element and comes into contact with the pre-filtration layer made of PP meltblown cotton or nylon mesh, which initially retains large particles of impurities. The large particles of impurities adhere to the membrane surface.

[0004] However, there are some drawbacks: when wastewater containing various pollutants enters the equipment through the inlet, it flows through the RO membrane filter element according to the preset water flow path and completes the filtration operation by relying on the semi-permeability of the RO membrane. Large particulate impurities (such as silt, suspended colloids, flocculents, etc.) in the wastewater will continuously come into contact with the surface of the RO membrane filter element. Large particulate impurities in the wastewater will be adsorbed and accumulated on the surface of the RO membrane filter element, which can easily lead to clogging of the RO membrane filter element structure. The shell of the traditional RO membrane filter element is an integral structure, which makes it inconvenient to disassemble and assemble the RO membrane filter element, resulting in the accumulation of large particulate impurities on the outer surface of the RO membrane filter element, thereby affecting the wastewater filtration efficiency of the RO membrane filter element structure. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an RO membrane filter structure that can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides an RO membrane filter element structure, including a shell, an inlet pipe and a sewage discharge pipe. The inlet pipe and the sewage discharge pipe are fixedly installed on the upper and lower parts of the outer wall of the shell, respectively. The upper and lower ends of the shell are provided with a sealing assembly mechanism, which is used to facilitate the disassembly and assembly of the RO membrane filter element and prevent clogging. The sealing assembly mechanism includes a first sealing cover and a second sealing cover. One end of the second sealing cover is sleeved on both ends of the outer shell. A clean water outlet is fixedly connected inside one of the second sealing covers. A first slot is opened on the inner wall of the outer shell near both ends. A first locking block is slidably sleeved inside the first slot.

[0007] Furthermore, one side of the first locking block is fixedly connected to the outer wall of the first sealing cover. A groove is provided inside one end of the first sealing cover. A compression gasket is fixedly connected to one end of the first sealing cover. One end of each of the two first sealing covers is fixedly fitted inside both ends of the outer shell. The two first sealing covers press against the RO membrane filter element body at one end. The RO membrane filter element body is fitted inside the outer shell. Both ends of the RO membrane filter element body are inserted into the grooves of the first sealing cover. A second locking groove is provided on the outer wall of one end of the RO membrane filter element body. A second locking block is slidably fitted inside the second locking groove. A cover ring plate is fixedly connected to one end of the second locking block. The cover ring plate is fixedly fitted to one end of the inner wall of the outer shell.

[0008] Furthermore, one end of the second sealing cover is fixedly sleeved on the upper and lower ends of the outer shell, and one end of the second sealing cover presses against the upper and lower end surfaces of the first sealing cover. The upper and lower ends of the two second sealing covers are respectively provided with a fixing groove and a clamping groove near the edge.

[0009] Furthermore, a fixing clamping piece is fixedly installed inside the fixing groove, a screw sleeve is fixedly sleeved inside the fixing clamping piece, a first screw is rotatably sleeved inside the screw sleeve, and a movable clamping piece is rotatably sleeved on the outer side of one end of the fixing clamping piece. The movable clamping piece is sleeved inside the clamping groove, and the fixing clamping piece and the movable clamping piece form a clamping structure.

[0010] Furthermore, a handle is fixedly connected to one end of the first screw, and a second screw is fixedly connected to one end of the handle. A threaded sleeve is rotatably sleeved on the outer side of the second screw, and a threaded groove is opened inside the threaded sleeve. The second screw is rotatably sleeved inside the threaded groove.

[0011] Furthermore, a guide rod is fixedly installed on the outer wall of the outer shell, a guide groove is provided inside the guide rod, a guide block is slidably sleeved inside the guide groove, the guide block is fixedly connected to the lower end of the movable clamping piece, and one end of the guide rod is fixedly connected to the outer wall of the threaded sleeve near the center.

[0012] The technical solution provided by this utility model has the following advantages compared with the known prior art: This invention achieves rapid separation and assembly of the filter element and the outer shell through the slotted cooperation between the first sealing cover and the outer shell of the sealing assembly mechanism, and the locking block positioning structure between the RO membrane filter element body and the cover ring plate. The second sealing cover applies inward pressure to the upper and lower ends of the outer shell through components such as fixed clamping plates, movable clamping plates, screws and threaded sleeves, so that the second sealing cover fits tightly against the first sealing cover and the upper and lower ends of the outer shell. Compared with the traditional RO membrane filter element installation with an integrated outer shell structure, this invention solves the problem of inconvenience in disassembling and assembling the RO membrane filter element, thereby reducing the accumulation of large particulate impurities on the outer surface of the RO membrane filter element and effectively avoiding the decline in the wastewater purification effect of the RO membrane filter element structure. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the main structure of the first sealing cap, the cap ring plate, and the RO membrane filter element of this utility model; Figure 3 This is a schematic diagram of the disassembled structure of the sealing assembly mechanism of this utility model; Figure 4 This is a schematic diagram of the fixed clamping plate and the movable clamping plate of this utility model.

[0015] The labels in the diagram represent: 1. Outer shell; 2. Inlet pipe; 3. Sewage outlet pipe; 4. Sealing assembly mechanism; 41. First sealing cover; 42. Extrusion gasket; 43. Embedded groove; 44. First locking block; 45. First locking groove; 46. Cover ring plate; 47. Second locking block; 48. Second locking groove; 49. Second sealing cover; 410. Fixing groove; 411. Clamping groove; 414. Guide rod; 415. Guide groove; 416. Fixed clamping piece; 417. Movable clamping piece; 418. Guide block; 419. First screw; 420. Second screw; 421. Threaded groove; 422. Threaded sleeve; 423. Threaded sleeve; 424. Handle; 5. Clean water outlet; 6. RO membrane filter body. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0017] The present invention will be further described below with reference to the embodiments.

[0018] Example 1: Reference Figures 1 to 2 This is the first embodiment of the present invention, disclosing an RO membrane filter element structure, including a shell 1, an inlet pipe 2, and a wastewater discharge pipe 3. The inlet pipe 2 and the wastewater discharge pipe 3 are fixedly installed on the upper and lower parts of the outer wall of the shell 1, respectively. Sealing assembly mechanisms 4 are provided at the upper and lower ends of the shell 1. The sealing assembly mechanisms 4 are used to facilitate the disassembly and assembly of the RO membrane filter element and prevent clogging. The RO membrane filter element works based on the reverse osmosis principle. By applying pressure to the inlet water, water molecules are forced to pass through the RO membrane, while impurities such as inorganic salts, heavy metal ions, organic matter, colloids, bacteria, and viruses in the water cannot pass through the RO membrane, thereby achieving water purification. The core material of the RO membrane filter element is a semi-permeable membrane, commonly used in semi-permeable membranes... Membrane materials include polyamide (PA) and cellulose acetate (CA). Polyamide membranes have higher desalination rates and antifouling capabilities, making them the mainstream choice. In addition, RO membrane filter cartridges may also include some auxiliary materials, such as a flow guide net, a central tube, and a housing 1. The flow guide net is generally made of plastic and is used to distribute the water flow evenly and provide support. The central tube is usually made of plastic or metal and is used to collect the purified water. The housing 1 is generally made of pressure-resistant plastic or metal to withstand high pressure. RO membrane filter cartridges are a common technology in the present, and common models include 3012-50G, 3012-75G, 3013-400G, RO1812-75-2, etc. The sealing assembly mechanism 4 includes a first sealing cover 41 and a second sealing cover 49. The cooperation of the first and second sealing covers 41 and 49 achieves double sealing at both ends of the outer casing 1. One end of the second sealing cover 49 is fitted onto both ends of the outer casing 1. A clean water outlet 5 is fixedly fitted inside one of the second sealing covers 49. First slots 45 are provided on the inner wall of the outer casing 1 near both ends. First locking blocks 44 are slidably fitted inside each of the first slots 45. One side of the first locking block 44 is fixedly connected to the outer wall of the first sealing cover 41. A groove 43 is provided inside one end of the first sealing cover 41. A compression gasket 42 is fixedly connected to one end of the first sealing cover 41. The two first sealing covers... One end of each of the sealing caps 41 is fixedly fitted inside both ends of the outer shell 1, and one end of each of the two first sealing caps 41 is pressed against the RO membrane filter body 6. The elastic deformation of the compression gasket 42 enhances the sealing between the first sealing cap 41 and the RO membrane filter body 6. The RO membrane filter body 6 is fitted inside the outer shell 1, and both ends of the RO membrane filter body 6 are inserted into the grooves 43 of the first sealing caps 41. A second slot 48 is opened on the outer wall of one end of the RO membrane filter body 6. A second locking block 47 is slidably fitted inside the second slot 48. One end of the second locking block 47 is fixedly connected to a cover ring plate 46, and the cover ring plate 46 is fixedly fitted on one end of the inner wall of the outer shell 1.

[0019] In use, firstly, fix the cover plate 46 onto one end of the inner wall of the outer shell 1, ensuring that the second locking block 47 faces the inside of the outer shell 1. Then, insert the RO membrane filter body 6 into the inner shell 1, so that the second locking groove 48 at one end of the RO membrane filter body 6 precisely engages with the second locking block 47 on the cover plate 46 and slides in to fix it. Install the compression gasket 42 on one end of the two first sealing caps 41, align the first locking block 44 of the first sealing cap 41 with the first locking groove 45 on the inner wall of the outer shell 1, and insert the two first sealing caps 41 into the outer shell 1 from both ends, so that one end of the first sealing cap 41 is inserted into the two ends of the RO membrane filter body 6. Within the groove 43 at the end, the first sealing cover 41 is slid to allow the first locking block 44 to fully enter the first locking groove 45 and be fixed. At this time, the compression gasket 42 is compressed to form a seal. The second sealing cover 49 is fitted onto both ends of the outer shell 1 to complete the overall seal. A clean water outlet 5 is fixedly connected inside one of the second sealing covers 49 for exporting filtered clean water. Through components such as the first sealing cover 41 and the second sealing cover 49, the RO membrane filter body 6 can be disassembled or assembled from inside the outer shell 1, thereby facilitating the periodic removal of deposits on the outer surface of the RO membrane filter structure.

[0020] Example 2: Reference Figures 2 to 4This is the second embodiment of the present invention. This embodiment differs from the first embodiment in that: one end of the second sealing cover 49 is fixedly sleeved on the upper and lower ends of the outer shell 1; one end of the second sealing cover 49 presses against the upper and lower surfaces of the first sealing cover 41; the second sealing cover 49 is sleeved on the upper and lower ends of the outer shell 1 and directly presses against the surface of the first sealing cover 41, forming a double seal with the compression gasket 42 of the first sealing cover 41; and fixing grooves 410 and clamping grooves 411 are respectively provided at the edges of the upper and lower ends of the two second sealing covers 49 for fixing... A fixed clamping piece 416 is fixedly installed inside the groove 410. A screw sleeve 423 is fixedly sleeved inside the fixed clamping piece 416. A first screw 419 is rotatably sleeved inside the screw sleeve 423. A movable clamping piece 417 is rotatably sleeved on the outer side of one end of the fixed clamping piece 416. The movable clamping piece 417 is sleeved inside the clamping groove 411. The fixed clamping piece 416 and the movable clamping piece 417 form a clamping structure. Through the cooperation of the fixed clamping piece 416 and the movable clamping piece 417, a clamping structure for the second sealing cover 49 is formed.

[0021] One end of the first screw 419 is fixedly connected to a handle 424, and one end of the handle 424 is fixedly connected to a second screw 420. A threaded sleeve 422 is rotatably sleeved on the outside of the second screw 420. A threaded groove 421 is provided inside the threaded sleeve 422. The cooperation between the first screw 419, the second screw 420 and the threaded sleeve 422 utilizes the self-locking characteristic of the thread to maintain stable clamping force and prevent loosening during long-term use. The second screw 420 is rotatably sleeved inside the threaded groove 421. A guide rod 414 is fixedly installed on the outer wall of the outer shell 1. A guide groove 415 is provided inside the guide rod 414. A guide block 418 is slidably sleeved inside the guide groove 415. The guide block 418 is fixedly connected to the lower end of the movable clamping piece 417. One end of the guide rod 414 is fixedly connected to the outer wall of the threaded sleeve 422 near the center.

[0022] In use, the two second sealing caps 49 are respectively fitted onto the upper and lower ends of the outer shell 1, with one end contacting the upper and lower surfaces of the first sealing cap 41. This ensures that the fixing groove 410 and clamping groove 411 of the second sealing cap 49 correspond to the external structure of the outer shell 1. A fixing clamping piece 416 is installed in the fixing groove 410, and the screw sleeve 423 is fixedly fitted inside the fixing clamping piece 416. The movable clamping piece 417 is fitted into the clamping groove 411, with one end rotatably connected to the fixing clamping piece 416. The first screw 419 is then rotatably fitted onto... Inside the threaded sleeve 423, one end is connected to the handle 424. The second screw 420 is fixedly connected to the other end of the handle 424 and screwed into the threaded groove 421 of the threaded sleeve 422. The guide block 418 is fixed to the lower end of the movable clamping piece 417. The guide block 418 is then slid into the guide groove 415 of the guide rod 414. One end of the guide rod 414 is fixed to the outer wall of the threaded sleeve 422. By rotating the handle 424, the threaded sleeve 422 is moved through the cooperation of the second screw 420 and the threaded groove 421, further advancing the first thread. The rod rotates inside the threaded sleeve 423 of the fixed clamping piece 416 and inside the movable clamping piece 417, thereby driving the movable clamping piece 417 to move back and forth on the first screw 419. The guide block 418 of the movable clamping piece 417 moves inside the guide groove 415 of the guide rod 414. The second screw 420 moves telescopically inside the threaded sleeve 422, while the first screw 419 rotates and moves out of the fixed clamping piece 416, thereby controlling the movement of the fixed clamping piece 416 and the movable clamping piece 417. 17. Tighten the two second sealing covers 49 at both ends of the outer shell 1 to form a tension force, so that they can be tightly fixed and attached to both ends of the outer shell 1. It is worth noting that the fixed clamping piece 416 and the movable clamping piece 417 at the upper and lower ends of the outer shell 1 are clamped to the second sealing cover 49 by adjusting the screw. The fixed clamping piece 416 and the movable clamping piece 417 at the upper and lower ends of the outer shell 1 respectively apply inward pressure to the second sealing cover 49 at the upper and lower ends of the outer shell 1, so that the second sealing cover 49 is tightly attached to the first sealing cover 41 and the upper and lower ends of the outer shell 1.

[0023] The remaining structure is the same as that in Example 1.

[0024] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. An RO membrane filter element structure, characterized in that; Includes an outer shell (1), an inlet pipe (2) and a sewage discharge pipe (3). The inlet pipe (2) and the sewage discharge pipe (3) are fixedly installed on the upper and lower parts of the outer wall of the outer shell (1). The upper and lower ends of the outer shell (1) are provided with a sealing assembly mechanism (4). The sealing assembly mechanism (4) is used to facilitate the disassembly and assembly of the RO membrane filter element to prevent clogging. The sealing assembly mechanism (4) includes a first sealing cover (41) and a second sealing cover (49). One end of the second sealing cover (49) is sleeved on both ends of the outer shell (1). A clean water outlet (5) is fixedly sleeved inside one of the second sealing covers (49). A first slot (45) is opened on both ends of the inner wall of the outer shell (1). A first locking block (44) is slidably sleeved inside the first slot (45).

2. The RO membrane filter element structure according to claim 1, characterized in that, One side of the first locking block (44) is fixedly connected to the outer wall of the first sealing cover (41). A groove (43) is opened inside one end of the first sealing cover (41). A compression pad (42) is fixedly connected to one end of the first sealing cover (41). One end of each of the two first sealing covers (41) is fixedly sleeved inside both ends of the outer shell (1). One end of each of the two first sealing covers (41) is pressed against the RO membrane filter body (6). The RO membrane filter body (6) is sleeved inside the outer shell (1). Both ends of the RO membrane filter body (6) are inserted into the groove (43) of the first sealing cover (41). A second locking groove (48) is opened on the outer wall of one end of the RO membrane filter body (6). A second locking block (47) is slidably sleeved inside the second locking groove (48). A cover ring plate (46) is fixedly connected to one end of the second locking block (47). The cover ring plate (46) is fixedly sleeved on one end of the inner wall of the outer shell (1).

3. The RO membrane filter element structure according to claim 1, characterized in that, One end of the second sealing cover (49) is fixedly sleeved on the upper and lower ends of the outer shell (1). One end of the second sealing cover (49) is pressed against the upper and lower end surfaces of the first sealing cover (41). The upper and lower ends of the two second sealing covers (49) are respectively provided with a fixing groove (410) and a clamping groove (411) near the edge.

4. The RO membrane filter element structure according to claim 3, characterized in that, A fixed clamping piece (416) is fixedly installed inside the fixed groove (410). A screw sleeve (423) is fixedly sleeved inside the fixed clamping piece (416). A first screw (419) is rotatably sleeved inside the screw sleeve (423). A movable clamping piece (417) is rotatably sleeved on the outer side of one end of the fixed clamping piece (416). The movable clamping piece (417) is sleeved inside the clamping groove (411), and the fixed clamping piece (416) and the movable clamping piece (417) form a clamping structure.

5. The RO membrane filter element structure according to claim 4, characterized in that, One end of the first screw (419) is fixedly connected to a handle (424), and one end of the handle (424) is fixedly connected to a second screw (420). A threaded sleeve (422) is rotatably sleeved on the outside of the second screw (420). A threaded groove (421) is opened inside the threaded sleeve (422), and the second screw (420) is rotatably sleeved inside the threaded groove (421).

6. The RO membrane filter element structure according to claim 1, characterized in that, A guide rod (414) is fixedly installed on the outer wall of the outer shell (1). A guide groove (415) is provided inside the guide rod (414). A guide block (418) is slidably sleeved inside the guide groove (415). The guide block (418) is fixedly connected to the lower end of the movable clamping piece (417). One end of the guide rod (414) is fixedly connected to the outer wall of the threaded sleeve (422) near the center.

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