A reverse osmosis membrane filtration device

Abstract

This utility model provides a reverse osmosis membrane filtration device, including a housing, a permeate membrane body installed inside the housing, a pressure plate fixedly connected to the outer wall of the permeate membrane body, a locking groove formed on the outer wall of the pressure plate, a connection port on the top of the permeate membrane body, a limiting groove and a sliding groove on the top of the housing, a rotating ring on the top of the housing, a ratchet groove partially formed on the outer wall of the rotating ring, a pressing block on the inner wall of the rotating ring, a limiting ring fixedly connected to the bottom of the rotating ring, a slider inside the sliding groove, a locking block fixedly connected to the top of the slider, a fixing plate fixedly connected to the top of the housing, a pull rod passing through the fixing plate, a positioning block fixedly connected to the left side of the pull rod, a pull plate fixedly connected to the right side of the pull rod, a spring fixedly connected to the left outer wall of the pull plate, the other end of the spring fixedly connected to the outer wall of the fixing plate, a positioning groove formed on the inner wall of the fixing plate, and a positioning strip fixedly connected to the outer wall of the pull rod. This utility model can shorten the disassembly and assembly time and significantly improve maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of syrup production technology, and in particular to a reverse osmosis membrane filtration device. Background Technology

[0002] Currently, the water used in syrup production is generally of poor quality, which can easily affect the taste of the syrup. At the same time, existing technologies also suffer from uneven mixing, low efficiency, and high levels of impurities in the syrup, impacting both syrup quality and production efficiency.

[0003] Reverse osmosis is the most precise membrane liquid separation technology. It applies operating pressure to the feed water (concentrated solution) side to overcome the natural osmotic pressure. When the operating pressure is higher than the natural osmotic pressure applied to the concentrated solution side, the natural flow direction of water molecules will reverse. Some of the water molecules in the feed water (concentrated solution) pass through the reverse osmosis membrane and become purified product water on the dilute solution side. Reverse osmosis membranes are widely used in the preparation of industrial pure water and electronic ultrapure water, drinking pure water production, boiler feed water and other processes. Using reverse osmosis equipment before ion exchange can significantly reduce the amount of operating water and wastewater discharged.

[0004] In existing devices, the permeate membrane body is connected to the outer shell by bolts and sealed by a sealing ring. However, if the preload of multiple bolts is uneven, it can lead to local leakage. Furthermore, disassembly and assembly require tightening and loosening each bolt individually, which is time-consuming, labor-intensive, and results in low maintenance efficiency. Summary of the Invention

[0005] In view of this, the present invention provides a reverse osmosis membrane filtration device. The main technical problem to be solved is that in the existing device, the main body of the permeate membrane is connected to the outer shell by bolts and sealed by a sealing ring. However, if the preload of multiple bolts is uneven, it will lead to local leakage. Furthermore, disassembly and assembly require tightening and loosening each bolt individually, which is time-consuming, labor-intensive, and has low maintenance efficiency.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a reverse osmosis membrane filtration device, comprising a housing, a permeate membrane body installed inside the housing, a pressure plate fixedly connected to the outer wall of the permeate membrane body, a locking groove formed on the outer wall of the pressure plate, and multiple locking grooves, a connection port provided at the top of the permeate membrane body, a limit groove provided at the top of the housing, multiple sliding grooves provided at the top of the housing, a rotating ring provided at the top of the housing, a ratchet groove partially formed on the outer wall of the rotating ring, a pressing block provided on the inner wall of the rotating ring, and multiple pressing blocks, a limit ring fixedly connected to the bottom of the rotating ring, and multiple locking grooves. The slide grooves are all equipped with sliders, and locking blocks are fixedly connected to the top of the sliders. A fixing plate is fixedly connected to the top of the outer shell, and a pull rod runs through the interior of the fixing plate. A positioning block is fixedly connected to the left side of the pull rod, with one end of the positioning block located in a ratchet groove. A pull plate is fixedly connected to the right side of the pull rod, and two springs are fixedly connected to the left outer wall of the pull plate. The other ends of both springs are fixedly connected to the outer wall of the fixing plate. Multiple positioning grooves are formed on the inner wall of the fixing plate, and two positioning strips are fixedly connected to the outer wall of the pull rod, each positioned inside one of the two positioning grooves. By adopting the above technical solution, disassembly and assembly time is reduced, and maintenance efficiency is improved.

[0007] Furthermore, the bottom of the inner wall of the locking groove is sloped, the end of the locking block located inside the locking groove is triangular, and the cross-sections of the limiting groove, the limiting ring, and the slider are all T-shaped. By adopting the above technical solution, the rotation of the limiting ring is made more stable.

[0008] Furthermore, a sealing gasket is provided on the top of the outer casing, and the sealing gasket is located between the top of the pressure plate and the permeate membrane body. By adopting the above technical solution, the sealing performance when the permeate membrane body is fixed to the outer casing is improved.

[0009] Furthermore, a pre-fabricated filter screen is threaded onto the inner wall of the connection port, and an external thread is formed on the outer wall of the connection port. By adopting the above technical solution, the water pretreatment effect is achieved.

[0010] Furthermore, a base is fixedly connected to the bottom of the reverse osmosis membrane body, and a cross groove is formed inside the base. A cross plate is fixedly connected to the bottom of the inner wall of the outer shell, and the cross plate is located inside the base. By adopting the above technical solution, after the reverse osmosis membrane body is installed, multiple locking grooves can correspond to multiple locking blocks respectively.

[0011] Furthermore, the outer wall of the outer casing is provided with multiple water outlet pipes. Two water outlet pipes are located at the lower ends of the outer wall of the outer casing on both sides. One end of each water outlet pipe is fixedly connected to a flange, and a drainage filter screen is installed inside the flange. By adopting the above technical solution, the water that has been filtered through the permeate membrane is filtered again.

[0012] Furthermore, a plurality of support legs are fixedly connected to the bottom of the outer casing, and the support legs are located at the bottom edge of the outer casing. By adopting the above technical solution, the stability of the entire device is improved.

[0013] By employing the above technical solution, the reverse osmosis membrane filtration device of this utility model has at least the following beneficial effects:

[0014] (1) Compared with the prior art, this reverse osmosis membrane filtration device, by setting a pressure plate, rotating ring, squeezing block, limiting ring, slider, locking block, fixing plate, pull rod, positioning block, and pull plate, when installing the permeate membrane body, the cross plate in the outer shell is inserted into the cross groove in the base. At this time, the multiple locking grooves opened on the outer wall of the pressure plate correspond to the positions of multiple locking blocks, and the multiple sliders and locking blocks are in positions away from the permeate membrane body. Then, the rotating ring is rotated clockwise. Under the limiting action of the limiting groove, the limiting ring at the bottom of the rotating ring causes the ratchet grooves opened locally on its outer wall to squeeze the positioning block in sequence when the rotating ring rotates clockwise. When the positioning block moves out of the previous ratchet groove, the spring is in a stretched state. After the positioning block moves out of the previous ratchet groove, the spring rebounds as the rotating ring rotates, causing the positioning block to enter the next ratchet groove. When the rotating ring rotates clockwise, the squeezing block connected to the inner wall squeezes the arc end of the locking block. Under the limiting action of the slide groove, multiple locking blocks enter the interior of multiple locking grooves respectively. After the inclined end of the locking block enters the interior of the locking groove, it contacts the bottom inclined surface of the locking groove, realizing the rapid fixing or release of the permeate membrane body and the shell. Compared with the traditional method of tightening bolts one by one, it shortens the disassembly and assembly time and significantly improves maintenance efficiency.

[0015] (2) Compared with the prior art, this reverse osmosis membrane filtration device improves the sealing performance between the membrane body and the shell after it is fixed by setting a pre-made filter screen, water outlet pipe, flange, and drainage filter screen, and setting a sealing gasket in the middle of the top of the pressure plate and the shell. At the same time, the pre-made filter screen is connected to the internal thread of the connection port to pre-filter the water entering the membrane body. Meanwhile, drainage filter screens are installed inside the two flanges at the bottom. With the action of the pre-made filter screen, the membrane body and the drainage filter screen, multiple filtrations are achieved and the filtration effect is improved. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 3 for Figure 2 Enlarged schematic diagram of structure A in the middle;

[0019] Figure 4 This is a schematic diagram of the top of the outer shell of this utility model;

[0020] Figure 5 This is a schematic diagram of the main body of the permeation membrane of this utility model;

[0021] Figure 6 This is a schematic diagram of the interior of the outer shell of this utility model;

[0022] Figure 7 This is a schematic diagram of the rotating ring and the limiting ring of this utility model;

[0023] Figure 8 This is a schematic diagram of the slider and locking block of this utility model;

[0024] Figure 9 This is a schematic diagram of the positioning block, pull rod, and pull plate of this utility model.

[0025] In the diagram: 1. Outer shell; 2. Membrane body; 3. Pressure plate; 4. Locking groove; 5. Connection port; 6. Limiting groove; 7. Sliding groove; 8. Rotating ring; 9. Extrusion block; 10. Limiting ring; 11. Slider; 12. Locking block; 13. Fixing plate; 14. Pull rod; 15. Positioning block; 16. Pull plate; 17. Spring; 18. Positioning groove; 19. Positioning strip; 20. Sealing gasket; 21. Pre-fabricated filter screen; 22. Base; 23. Cross plate; 24. Water outlet pipe; 25. Flange; 26. Drainage filter screen; 27. Support leg. Detailed Implementation

[0026] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. In order to better illustrate the specific embodiments of the present invention, some parts in the drawings may be omitted, enlarged or reduced, and do not represent the actual product size. It is understandable for those skilled in the art that some well-known structures and their descriptions in the drawings may be omitted. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] In the description of this utility model, it should be noted that the terms "front", "rear", "upper", "lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Reference Figure 1-9 This utility model provides a reverse osmosis membrane filtration device, comprising: a housing 1, a permeate membrane body 2 installed inside the housing 1, a pressure plate 3 fixedly connected to the outer wall of the permeate membrane body 2, a locking groove 4 formed on the outer wall of the pressure plate 3, and multiple locking grooves 4; a connection port 5 provided at the top of the permeate membrane body 2; a limiting groove 6 formed at the top of the housing 1; multiple sliding grooves 7 formed at the top of the housing 1; a rotating ring 8 provided at the top of the housing 1, a ratchet groove partially formed on the outer wall of the rotating ring 8, and multiple pressing blocks 9 formed on the inner wall of the rotating ring 8; a limiting ring 10 fixedly connected to the bottom of the rotating ring 8; and sliders 11 provided inside each of the multiple sliding grooves 7. A locking block 12 is fixedly connected to the top of the outer shell 1. A fixing plate 13 is fixedly connected to the top of the outer shell 1. A pull rod 14 passes through the inside of the fixing plate 13. A positioning block 15 is fixedly connected to the left side of the pull rod 14. One end of the positioning block 15 is located in the ratchet groove. A pull plate 16 is fixedly connected to the right side of the pull rod 14. A spring 17 is fixedly connected to the left outer wall of the pull plate 16. There are two springs 17. The other ends of the two springs 17 are fixedly connected to the outer wall of the fixing plate 13. A positioning groove 18 is opened on the inner wall of the fixing plate 13. There are multiple positioning grooves 18. A positioning strip 19 is fixedly connected to the outer wall of the pull rod 14. There are two positioning strips 19. The two positioning strips 19 are located inside the two positioning grooves 18 respectively.

[0030] The bottom of the inner wall of the locking groove 4 is inclined, the locking block 12 is triangular at one end inside the locking groove 4, and the cross-sections of the limiting groove 6, the limiting ring 10, and the slider 11 are all T-shaped.

[0031] A sealing gasket 20 is provided on the top of the outer shell 1. The sealing gasket 20 is located in the middle of the top of the pressure plate 3 and the permeate membrane body 2, which improves the sealing performance between the permeate membrane body 2 and the outer shell 1 after it is fixed. A pre-made filter screen 21 is threaded on the inner wall of the connection port 5, and an external thread is provided on the outer wall of the connection port 5, which can be connected to an external pipe.

[0032] The bottom of the permeation membrane body 2 is fixedly connected to a base 22, and a cross groove is opened inside the base 22. A cross plate 23 is fixedly connected to the bottom of the inner wall of the outer shell 1. The cross plate 23 is located inside the base 22. When installing the permeation membrane body 2, the cross plate 23 in the outer shell 1 is inserted into the cross groove in the base 22. At this time, the multiple locking grooves 4 opened on the outer wall of the pressure plate 3 correspond to the positions of the multiple locking blocks 12.

[0033] The outer wall of the outer casing 1 is provided with a water outlet pipe 24, and there are multiple water outlet pipes 24. Two water outlet pipes 24 are located at the lower ends of the outer walls of the outer casing 1. One end of the water outlet pipe 24 is fixedly connected to a flange 25. A drain filter screen 26 is installed inside the flange 25. A pre-made filter screen 21 is threadedly connected inside the connection port 5 to pre-filter the water entering the permeate membrane body 2. At the same time, drain filter screens 26 are installed inside the two flanges 25 at the bottom. With the action of the pre-made filter screen 21, the permeate membrane body 2, and the drain filter screen 26, multiple filtration is achieved to improve the filtration effect. The bottom of the outer casing 1 is fixedly connected with a support leg 27, and there are multiple support legs 27. The multiple support legs 27 are located at the bottom edge of the outer casing 1.

[0034] Working principle: When installing the permeate membrane body 2, the cross plate 23 in the outer shell 1 is inserted into the cross groove in the base 22. At this time, the multiple locking grooves 4 on the outer wall of the pressure plate 3 correspond to the positions of multiple locking blocks 12, and the multiple sliders 11 and locking blocks 12 are located away from the permeate membrane body 2. Then, the rotating ring 8 is rotated clockwise. Under the limiting action of the limiting groove 6, the bottom limiting ring 10 of the rotating ring 8 causes the ratchet grooves partially opened on its outer wall to press the positioning blocks 15 in sequence when the rotating ring 8 rotates clockwise. When the positioning block 15 moves out of the previous ratchet groove, At this time, spring 17 is in a stretched state. After the positioning block 15 moves out of the previous ratchet groove, as the rotating ring 8 rotates, spring 17 rebounds, causing the positioning block 15 to enter the next ratchet groove. When the rotating ring 8 rotates clockwise, the pressing block 9 connected to the inner wall presses the arc end of the locking block 12. Under the limiting action of the sliding groove 7, multiple locking blocks 12 enter the interior of multiple locking grooves 4 respectively. After the inclined end of the locking block 12 enters the interior of the locking groove 4, it contacts the bottom inclined surface of the locking groove 4, realizing the rapid fixing or release of the permeate membrane body 2 and the outer shell 1. Compared with the traditional method of tightening bolts one by one, it shortens the disassembly and assembly time and significantly improves maintenance efficiency.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A reverse osmosis membrane filtration device, comprising a housing (1), characterized in that: The permeation membrane body (2) is installed inside the outer shell (1). A pressure plate (3) is fixedly connected to the outer wall of the permeation membrane body (2). A locking groove (4) is opened on the outer wall of the pressure plate (3), and there are multiple locking grooves (4). A connection port (5) is provided on the top of the permeation membrane body (2). A limit groove (6) is opened on the top of the outer shell (1). A sliding groove (7) is opened on the top of the outer shell (1), and there are multiple sliding grooves (7). A rotating ring (8) is provided on the top of the outer shell (1). A ratchet groove is partially opened on the outer wall of the rotating ring (8). A squeezing block (9) is provided on the inner wall of the rotating ring (8), and there are multiple squeezing blocks (9). A limit ring (10) is fixedly connected to the bottom of the rotating ring (8). A slider (11) is provided inside each of the multiple sliding grooves (7). A locking device is fixedly connected to the top of the slider (11). Block (12), the top of the outer shell (1) is fixedly connected to a fixing plate (13), the inside of the fixing plate (13) is through a pull rod (14), the left side of the pull rod (14) is fixedly connected to a positioning block (15), one end of the positioning block (15) is located in a ratchet groove, the right side of the pull rod (14) is fixedly connected to a pull plate (16), the left outer wall of the pull plate (16) is fixedly connected to a spring (17), and there are two springs (17), the other ends of the two springs (17) are fixedly connected to the outer wall of the fixing plate (13), the inner wall of the fixing plate (13) is provided with a positioning groove (18), and there are multiple positioning grooves (18), the outer wall of the pull rod (14) is fixedly connected to a positioning strip (19), and there are two positioning strips (19), the two positioning strips (19) are respectively located inside the two positioning grooves (18).

2. The reverse osmosis membrane filtration device according to claim 1, characterized in that: The bottom of the inner wall of the locking groove (4) is inclined, and the locking block (12) is triangular at one end inside the locking groove (4). The cross-sections of the limiting groove (6), the limiting ring (10), and the slider (11) are all T-shaped.

3. The reverse osmosis membrane filtration device according to claim 1, characterized in that: A sealing gasket (20) is provided on the top of the outer shell (1), and the sealing gasket (20) is located in the middle of the top of the pressure plate (3) and the permeation membrane body (2).

4. The reverse osmosis membrane filtration device according to claim 1, characterized in that: The inner wall of the connection port (5) is threaded with a prefabricated filter screen (21), and the outer wall of the connection port (5) is provided with an external thread.

5. A reverse osmosis membrane filtration device according to claim 1, characterized in that: The bottom of the permeation membrane body (2) is fixedly connected to a base (22), and a cross groove is provided inside the base (22). The bottom of the inner wall of the outer shell (1) is fixedly connected to a cross plate (23), and the cross plate (23) is located inside the base (22).

6. A reverse osmosis membrane filtration device according to claim 1, characterized in that: The outer wall of the outer shell (1) is provided with a water outlet pipe (24), and there are multiple water outlet pipes (24). Two water outlet pipes (24) are located at the lower ends of the outer walls of the outer shell (1). One end of the water outlet pipe (24) is fixedly connected to a flange (25), and a drain filter screen (26) is installed inside the flange (25).

7. A reverse osmosis membrane filtration device according to claim 1, characterized in that: The bottom of the outer shell (1) is fixedly connected with a support leg (27), and there are multiple support legs (27), which are located at the bottom edge of the outer shell (1).

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