Composite nanofiltration membrane

Abstract

The utility model relates to the field of nanofiltration membranes and discloses a composite nanofiltration membrane which comprises a glass reinforced plastic pipe, a nanofiltration membrane is mounted on the inner wall of the glass reinforced plastic pipe, a membrane shell end cover is mounted on the inner wall of the glass reinforced plastic pipe close to the top end of the nanofiltration membrane, a clamping ring is mounted at the top end of the membrane shell end cover, and mounting components are arranged at the top ends of the membrane shell end cover and the clamping ring. The installation assembly comprises a positioning rod and a fixing disc, the positioning rod is fixedly connected to the top end of the membrane shell end cover, the fixing disc is fixedly connected to the top end of the clamping ring, and a circular groove is formed in the top end of the clamping ring. According to the utility model, the threaded rod is rotated to drive the guide disc to move upwards and pull the inclined connecting block and the clamping block to move, so that the clamping block slides out of the clamping groove so as to quickly relieve the limit of the clamping ring, and meanwhile, the threaded rod can be directly rotated to finish the installation without using tools and screwing bolts one by one, so that the operation is convenient and fast; the mounting and dismounting convenience is improved, and the mounting and dismounting efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to nanofiltration membrane field especially, it is a kind of composite nanofiltration membrane. BACKGROUND

[0002] With the increasing requirement of separation, purification technology to each industry, composite nanofiltration membrane is with its unique screening and selective permeability and other advantages, the existing composite nanofiltration membrane mostly adopts traditional multilayer composite structure, usually by support layer, transition layer and separation layer is composed, in water treatment, food processing, pharmaceutical manufacturing and chemical industry and many other fields have been widely applied, in water treatment field, nanofiltration membrane can be used for surface water advanced treatment, effectively remove chroma, organic matter and part of hardness component in water, produce high-quality drinking water, in industrial wastewater treatment, valuable material can be recycled and the pollution degree of wastewater is reduced, help to realize the recycling of water resources.

[0003] When nanofiltration membrane appears sudden failure, needs to replace nanofiltration membrane quickly, since the snap ring on the membrane shell end cover needs to be installed by multiple bolts, and when disassembling, the bolts need to be removed one by one using tools, since the bolts need to be removed one by one using tools, it takes a long time and is more laborious to remove multiple bolts by screwing, thereby reducing the installation efficiency, therefore a composite nanofiltration membrane is proposed to solve the above problems. SUMMARY

[0004] In order to make up for the above shortcomings, the utility model provides a kind of composite nanofiltration membrane, to improve the prior art " when the membrane shell end cover is removed, multiple bolts need to be screwed and removed one by one using tools, it needs to spend more time and effort, reduces installation efficiency" problem.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a kind of composite nanofiltration membrane, including glass steel pipe, the inner wall of glass steel pipe is installed with nanofiltration membrane, the inner wall of glass steel pipe is installed with membrane shell end cover near the top end of nanofiltration membrane, the top end of membrane shell end cover is installed with snap ring, the top end of membrane shell end cover and snap ring is provided with installation assembly, the installation assembly includes positioning rod and fixed disc, the top end of membrane shell end cover is fixedly connected with positioning rod, the top end of snap ring is fixedly connected with fixed disc, the top end of snap ring is provided with circular groove, the right side of positioning rod is provided with clamping groove, the top end of fixed disc is penetrated and is connected with threaded rod with screw thread, the bottom end of threaded rod is rotatably connected with guide disc, the left side of guide disc is hinged with connecting block, the left side of connecting block is hinged with clamping block.

[0006] Further description of the above technical solution:

[0007] The top end of the fixed disc is provided with a limiting assembly, and the limiting assembly comprises a limiting plate.

[0008] As a further description of the above technical scheme:

[0009] The positioning rod slides on the inner wall of the circular groove, and the connecting block is arranged in an inclined manner.

[0010] As a further description of the above technical scheme:

[0011] The guide disc is slidingly connected to the upper inner wall of the fixed disc, and the left part of the fixed disc is provided with a sliding groove.

[0012] As a further description of the above technical scheme:

[0013] The connecting block slides on the inner wall of the sliding groove, and the clamping block penetrates and slidingly connects to the left side of the fixed disc and the lower end inner wall of the sliding groove.

[0014] As a further description of the above technical scheme:

[0015] The clamping block is clamped to the inner wall of the clamping groove, and the clamping block, the connecting block, the positioning rod and the circular groove are provided in multiple groups, and the multiple groups of the clamping block, the connecting block, the positioning rod and the circular groove are arranged in an annular array with the center point of the fixed disc as the symmetric axis.

[0016] As a further description of the above technical scheme:

[0017] The limiting plate is arranged at the top end of the threaded rod, and the bottom end of the rotating rod is fixedly connected with a rubber pad.

[0018] As a further description of the above technical scheme:

[0019] The right top end of the fixed disc is provided with a rubber groove, and the rubber pad is rotatingly connected to the inner wall of the rubber groove.

[0020] The utility model has the advantages of:

[0021] 1、in the utility model, by rotating the threaded rod and driving the guide disc to move upwards, the inclined connecting block and the clamping block are pulled to move, so that the clamping block slides out of the clamping groove, and the clamping ring can be quickly removed, and when installing, the threaded rod can be directly rotated to complete the installation, without using tools and rotating the bolts one by one, so that the operation is convenient, the convenience of installation and disassembly is improved, and the installation efficiency is improved.

[0022] 2、in the utility model, the rubber pad is driven to rotate by rotating the limiting plate, the friction force is increased by the rubber pad, and the threaded rod can be limited after the limiting plate is rotated to the top end of the threaded rod, so that the stability of the threaded rod installation is improved, and the stability of the installation is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the overall device in the utility model;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the clamping ring and the membrane shell end cover in the utility model;

[0025] Figure 3 It is a schematic cross-sectional view of the three-dimensional structure of the fixing plate and the positioning rod in the present invention;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure cross section of the fixing plate and the positioning rod and the three-dimensional structure disassembly of the clamping ring and the membrane shell end cover in the present invention;

[0027] Figure 5 It is a three-dimensional structural cross-section of the fixed plate and a schematic diagram of the three-dimensional structure of the threaded rod, the rotating rod and the rubber pad in the utility model.

[0028] Legend:

[0029] 1. Fiberglass pipe; 2. Snap ring; 3. Limit plate; 4. Membrane shell end cover; 21. Fixed plate; 22. Threaded rod; 23. Positioning rod; 24. Slot; 25. Circular groove; 26. Block; 27. Slide; 28. Connecting block; 29. ​​Guide plate; 31. Rotating rod; 32. Rubber pad; 33. Rubber groove. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0031] Reference Figure 1 、 Figure 3 and Figure 4 The utility model provides an embodiment: a composite nanofiltration membrane, including a glass fiber reinforced plastic tube 1, which has a certain mechanical strength and can be used as a part of a frame structure to build a frame for supporting the nanofiltration membrane assembly to prevent the membrane assembly from being displaced, shaken or even damaged due to its own weight, water flow impact or other external forces, thereby ensuring that the nanofiltration membrane can stably perform filtering work. A nanofiltration membrane is installed on the inner wall of the glass fiber reinforced plastic tube 1. The nanofiltration membrane is a composite nanofiltration membrane and can be used for water treatment. A membrane shell end cover 4 is installed on the inner wall of the glass fiber reinforced plastic tube 1 near the top of the nanofiltration membrane. The membrane shell end cover 4 is installed on the inner wall of the glass fiber reinforced plastic tube 1 near the top of the nanofiltration membrane. It plays an important role in sealing the internal space of the glass fiber reinforced plastic tube 1. A clamping ring 2 for fixing the membrane shell end cover 4 is installed on the top of the membrane shell end cover 4, and a mounting assembly is provided on the top of the membrane shell end cover 4 and the clamping ring 2.

[0032] Further, the mounting assembly comprises the positioning rod 23 for fixing the card ring 2 through the cooperation of the clamping blocks 26 and the fixing disc 21 for providing support and limiting, the positioning rod 23 is fixedly connected to the top end of the membrane shell end cover 4, the fixing disc 21 is fixedly connected to the top end of the card ring 2, the top end of the card ring 2 is provided with a circular groove 25 for penetrating and sliding the positioning rod 23, the right side of the positioning rod 23 is provided with a clamping groove 24 for providing a space for sliding the clamping block 26, the top end of the fixing disc 21 penetrates and is threadedly connected with the threaded rod 22 for moving the guide disc 29, the bottom end of the threaded rod 22 is rotatably connected with the guide disc 29 for moving the plurality of connecting blocks 28 and the plurality of clamping blocks 26, the left side of the guide disc 29 is hingedly connected with the connecting block 28 for moving the plurality of clamping blocks 26, and the left side of the connecting block 28 is hingedly connected with the plurality of clamping blocks 26 for sliding into the corresponding clamping groove 24 to fix the clamping block 26 of the fixing disc 21 and the card ring 2.

[0033] With reference to Figure 1 , Figure 2 and Figure 5 , the top end of the fixing disc 21 is provided with a limiting assembly, the limiting assembly comprises a limiting plate 3 for limiting the threaded rod 22, and the right bottom end of the limiting plate 3 is fixedly connected with a rotating rod 31 for supporting the limiting plate 3.

[0034] With reference to Figure 3 , Figure 4 and Figure 5 , the positioning rod 23 slides on the inner wall of the circular groove 25, the connecting block 28 is arranged in an inclined manner, so that when the top end of the connecting block 28 is pulled by the guide disc 29, the bottom end can pull the clamping block 26 to the center of the fixing disc 21, the guide disc 29 is slidingly connected to the upper inner wall of the fixing disc 21, the left part of the fixing disc 21 is provided with a sliding groove 27 for providing a space for moving the connecting block 28, the connecting block 28 slides on the inner wall of the sliding groove 27, the clamping block 26 penetrates and slidingly connects to the left side of the fixing disc 21 and the lower end inner wall of the sliding groove 27, the clamping block 26 is clamped in the inner wall of the clamping groove 24, and the clamping block 26, the connecting block 28, the positioning rod 23 and the circular groove 25 are provided in multiple groups and arranged in an annular array with the center point of the fixing disc 21 as the axis of symmetry, and the stability of installation can be increased by arranging multiple groups.

[0035] With reference to Figure 1 , Figure 2 and Figure 5 , the limiting plate 3 is arranged at the top end of the threaded rod 22, the bottom end of the rotating rod 31 is fixedly connected with a rubber pad 32 for increasing friction and preventing the limiting plate 3 from rotating by itself, the right top end of the fixing disc 21 is provided with a rubber groove 33 for providing a space for rotating the bottom of the rotating rod 31 and the rubber pad 32, and the rubber pad 32 is rotatably connected to the inner wall of the rubber groove 33.

[0036] Working principle: in use, by aligning the circular groove 25 positioning rod 23 after the positioning rod 23 inserted into the circular groove 25, so that the bottom end of the ring 2 contact to the membrane shell end cover 4, at this time rotating screw rod 22 and fixed disc 21 threaded connection, drive the guide disc 29 downward movement, guide disc 29 downward movement drive connecting block 28, through the connecting block 28 is set to be inclined, thereby prompting the clamping block 26 outward movement, clamping block 26 outward movement inserted into the card slot 24, through a plurality of clamping block 26 and card slot 24 cooperation can quickly fix the ring 2 and membrane shell end cover 4 limit, after installation, at this time rotating the limiting plate 3 drive rotating rod 31 and rubber pad 32 rotation, through the limiting plate 3 rotation to the top of the threaded rod 22 after the threaded rod 22 limiting, can increase the stability of the threaded rod 22, prevent the threaded rod 22 loose, improve the stability of the connection, at the same time without using tools and screwing bolts one by one, convenient operation, improve the convenience of installation and removal, improve the installation efficiency.

[0037] When disassembling, the limiting plate 3 is rotated to the top of the threaded rod 22 outside, the limiting of the threaded rod 22 can be quickly removed, at this time the threaded rod 22 is reversely rotated and threaded with the fixed disc 21, driving the guide disc 29 upward movement pulling the connecting block 28 and the clamping block 26, so that the clamping block 26 slides out of the card slot 24, at this time the clamping of the ring 2 can be quickly removed, at this time the fixed disc 21 can be directly moved upward to drive the ring 2 to move out, so as to quickly remove the clamping of the ring 2, convenient disassembly, without using tools, can be quickly removed, further increase the convenience.

[0038] Finally, it should be pointed out that: the above described only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the scope of protection of the present application.

Claims

1. A composite nanofiltration membrane comprising a glass reinforced plastic pipe (1), characterized in that: The inner wall of the glass steel pipe (1) is provided with a nanofiltration membrane, the inner wall of the glass steel pipe (1) is provided with a membrane shell end cover (4) near the top end of the nanofiltration membrane, the top end of the membrane shell end cover (4) is provided with a snap ring (2), the top end of the membrane shell end cover (4) and the snap ring (2) is provided with a mounting assembly, the mounting assembly comprises a positioning rod (23) and a fixed disc (21), the positioning rod (23) is fixedly connected to the top end of the membrane shell end cover (4), the fixed disc (21) is fixedly connected to the top end of the snap ring (2), the top end of the snap ring (2) is provided with a circular groove (25), the right side of the positioning rod (23) is provided with a clamping groove (24), the top end of the fixed disc (21) is provided with a threaded rod (22), the bottom end of the threaded rod (22) is rotatably connected with a guide disc (29), the left side of the guide disc (29) is hingedly connected with a connecting block (28), and the left side of the connecting block (28) is hingedly connected with a clamping block (26).

2. The composite nanofiltration membrane according to claim 1, characterized in that: The top end of the fixed disc (21) is provided with a limiting assembly, and the limiting assembly comprises a limiting plate (3).

3. The composite nanofiltration membrane according to claim 1, wherein: The positioning rod (23) slides on the inner wall of the circular groove (25), and the connecting block (28) is inclined.

4. The composite nanofiltration membrane according to claim 3, characterized in that: The guide disc (29) is slidably connected to the upper inner wall of the fixed disc (21), and the left part of the fixed disc (21) is provided with a sliding groove (27).

5. The composite nanofiltration membrane according to claim 4, characterized in that: The connecting block (28) slides on the inner wall of the sliding groove (27), and the clamping block (26) penetrates and slidably connects the left side of the fixed disc (21) and the lower end inner wall of the sliding groove (27).

6. The composite nanofiltration membrane according to claim 5, wherein: The clamping block (26) is clamped in the inner wall of the clamping groove (24), and the clamping block (26), the connecting block (28), the positioning rod (23) and the circular groove (25) are provided with a plurality of groups, and the clamping block (26), the connecting block (28), the positioning rod (23) and the circular groove (25) are arranged in a ring array with the center point of the fixed disc (21) as the symmetry axis.

7. The composite nanofiltration membrane according to claim 2, wherein: The limiting plate (3) is arranged at the top end of the threaded rod (22), and the bottom end of the rotating rod (31) is fixedly connected with a rubber pad (32).

8. The composite nanofiltration membrane according to claim 7, characterized in that: The right top end of the fixed disc (21) is provided with a rubber groove (33), and the rubber pad (32) is rotatably connected to the inner wall of the rubber groove (33).

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