Novel multi-section roll type ultrafiltration membrane structure

Abstract

The utility model discloses a novel multi-section roll type ultrafiltration membrane structure which comprises an ABS pipe body, two ends of the ABS pipe body are respectively in threaded connection with a water inlet head and a water drainage head, the inner wall of one side, close to the water inlet head, of the ABS pipe body is fixedly connected with a bearing ring, the outer side of the bearing ring is fixedly connected with a filtering disc, and the outer side of the filtering disc is fixedly connected with a water outlet of the ABS pipe body. A plurality of through holes are formed in the surface of the filtering disc. According to the utility model, the ABS pipe body, the bearing ring, the filter disc, the through hole and the non-woven fabric filter sleeve are matched, so that a water source can be preliminarily filtered, and then the support frame, the central pipe, the flow guide port, the epoxy sealing disc, the first hollow fiber filter element, the support layer membrane, the second hollow fiber filter element, the feeding separation net and the activated carbon filter element are matched; water can sequentially pass through the activated carbon filter element, the second hollow fiber filter element and the first hollow fiber filter element, so that a multi-stage filtering and purifying effect can be formed, and the quality of water produced by pure water can be improved.

Description

Technical Field

[0001] This utility model relates to the field of ultrafiltration membrane technology, specifically to a novel multi-segment spiral wound ultrafiltration membrane structure. Background Technology

[0002] Ultrafiltration membranes are semi-permeable polymer membranes used in ultrafiltration processes to separate high-molecular-weight colloids or suspended particles of a certain size from a solution. They are pressure-driven, have pore sizes of 1–100 nm, are asymmetric membranes, have a pore density of approximately 10 / cm, and operate at a pressure difference of 100–1000 kPa. They are suitable for removing colloidal particles and macromolecules, and can separate solutions with concentrations less than 10%. They are used as artificial permeable membranes in ultrafiltration processes.

[0003] A search revealed a multi-segment spiral wound ultrafiltration membrane water treatment device disclosed in Chinese patent application number 202221029073.X. This patent relates to the field of ultrafiltration membrane water purification and discloses a multi-segment spiral wound ultrafiltration membrane water treatment device, including a filter tube. A base block is provided at the bottom of the filter tube, and several water passage holes are evenly arranged inside the base block. A spiral wound ultrafiltration membrane is fixedly connected to the top of the base block at a position opposite to the water passage holes. A waist hole is provided in the middle of both ends of the top cover, and a spring is fixedly connected to the inner wall of each waist hole. An ultrasonic vibrator is fixedly connected to the middle of the inner wall of both ends of the filter tube. This patent uses a filter frame to perform simple filtration of the water source, followed by secondary fine filtration by the spiral wound ultrafiltration membrane. The ultrasonic vibrator releases ultrasonic waves, causing the water source and impurities in the water to vibrate, thereby preventing impurities from clogging the pores of the spiral wound ultrafiltration membrane too quickly, extending the service life of the device. It has a simple structure, higher water filtration efficiency, and brings convenience to users.

[0004] Although the aforementioned patent uses a filter rack to perform simple filtration of the water source, followed by secondary fine filtration using a spiral wound ultrafiltration membrane, and an ultrasonic vibrator to release ultrasonic waves to cause vibrations in the water source and impurities, thereby preventing impurities from clogging the pores of the spiral wound ultrafiltration membrane too quickly, in actual use, this patent only uses a spiral wound ultrafiltration membrane for single fine filtration. The filtration effect of single fine filtration is also very limited, which to some extent affects the quality of the discharged pure water.

[0005] Therefore, it is necessary to modify the multi-segment spiral ultrafiltration membrane water treatment equipment in the above patent to effectively prevent the problem of using only spiral ultrafiltration membrane for single fine filtration, which has a very limited filtration effect and affects the quality of discharged pure water to a certain extent. Utility Model Content

[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide a novel multi-segment spiral wound ultrafiltration membrane structure, which solves the problem that the filtration effect of single fine filtration is very limited when using only spiral wound ultrafiltration membranes, which to some extent affects the quality of discharged pure water.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A novel multi-segment spiral-wound ultrafiltration membrane structure, comprising an ABS tube body, with an inlet head and an outlet head threadedly connected to both ends of the ABS tube body, respectively. A bearing ring is fixedly connected to the inner wall of the ABS tube body near the inlet head, and a filter disc is fixedly connected to the outer side of the bearing ring. The surface of the filter disc has several through holes arranged in a uniform ring. A non-woven fabric filter sleeve is fixedly connected to the other end of each through hole. A support frame is fixedly connected to the inner wall of the ABS tube body, and the support frame does not contact the non-woven fabric filter sleeve. A central tube is fixedly connected to the center of the support frame. The central tube has four flow guide ports on its surface, arranged symmetrically in pairs. The central tube also has a water inlet. An epoxy sealing disc is connected to the other end of the central tube, and the surface of the epoxy sealing disc is fixedly connected to the ABS tube body. A first hollow fiber filter element is installed on the outside of the central tube. A support membrane is installed on the outside of the first hollow fiber filter element. A second hollow fiber filter element is installed on the outside of the support membrane, with the pore size of the second hollow fiber filter element being larger than that of the first hollow fiber filter element. A feed screen is installed on the outside of the second hollow fiber filter element, and an activated carbon filter element is installed on the outside of the feed screen.

[0008] As a preferred embodiment of this utility model, a sealing block is fixedly connected to the inner wall between the two flow guide ports. The surface of the sealing block is respectively sealed to the first hollow fiber filter element, the support membrane, the second hollow fiber filter element, the feed separator and the activated carbon filter element. The inner side of the flow guide port is connected to the activated carbon filter element.

[0009] As a preferred embodiment of this utility model, a sealing groove is provided on the outer side of the bearing ring, and a sealing ring is fixedly connected to the inner side of the filter disc, and the sealing ring is engaged with the sealing groove.

[0010] As a preferred embodiment of this invention, a pressure ring is fixedly connected to the inner wall of the water inlet head, and the pressure ring is used in conjunction with the filter disc.

[0011] As a preferred embodiment of this invention, a permeable membrane is fixedly connected to the inner wall of the water inlet, and the permeable membrane is located inside the first hollow fiber filter element and used in conjunction with it.

[0012] As a preferred embodiment of this utility model, both the inlet head and the outlet head are connected to a connection port on their outer sides, and the outer side of the connection port is provided with a threaded groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, through the cooperation of ABS pipe body, bearing ring, filter disc, through hole and non-woven filter sleeve, can perform preliminary filtration of water source. Then, through the cooperation of support frame, central pipe, guide port, epoxy sealing disc, first hollow fiber filter element, support membrane, second hollow fiber filter element, feed screen and activated carbon filter element, the water can pass through the activated carbon filter element, the second hollow fiber filter element and the first hollow fiber filter element in sequence, thereby forming a multi-stage filtration and purification effect, and thus improving the quality of pure water production.

[0015] 2. By setting a sealing block, this utility model can ensure that the water source enters through the activated carbon filter first, avoiding the phenomenon that the water directly bypasses the activated carbon filter, the second hollow fiber filter, and the first hollow fiber filter to enter the central tube, thereby ensuring the filtration effect of the multi-segment spiral ultrafiltration membrane structure. Attached Figure Description

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

[0017] Figure 2 This is a partial cross-sectional perspective view of the structure of this utility model;

[0018] Figure 3 This is a three-dimensional schematic diagram of the filter disc, through holes, and non-woven filter sleeve of this utility model in use.

[0019] Figure 4 This is a three-dimensional schematic diagram of the support frame, central tube, and epoxy sealing plate used in conjunction with this utility model.

[0020] In the diagram: 1. ABS tube body; 2. Bearing ring; 3. Filter disc; 4. Through hole; 5. Non-woven filter sleeve; 6. Support frame; 7. Central tube; 8. Flow guide port; 9. Epoxy sealing disc; 10. First hollow fiber filter element; 11. Support membrane layer; 12. Second hollow fiber filter element; 13. Feed separator; 14. Activated carbon filter element; 15. Sealing block; 16. Sealing groove; 17. Sealing ring; 18. Pressure ring; 19. Permeation membrane. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 4As shown, this utility model provides a novel multi-segment spiral ultrafiltration membrane structure, including an ABS tube body 1. An inlet head and an outlet head are threaded to both ends of the ABS tube body 1, respectively. A support ring 2 is fixedly connected to the inner wall of the ABS tube body 1 near the inlet head. A filter disc 3 is fixedly connected to the outer side of the support ring 2. The surface of the filter disc 3 has several through holes 4, which are arranged in a uniform ring. A non-woven fabric filter sleeve 5 is fixedly connected to the other end of each through hole 4. The pore size of the non-woven fabric filter sleeve 5 can be 25 micrometers. An ultrasonic vibration device is installed inside the ABS tube body 1. The instrument, and the ultrasonic vibrator is used in conjunction with the non-woven filter sleeve 5. A support frame 6 is fixedly connected to the inner wall of the ABS tube body 1, and the support frame 6 does not contact the non-woven filter sleeve 5. A central tube 7 is fixedly connected to the center of the support frame 6. Four guide ports 8 are opened on the surface of the central tube 7, and the four guide ports 8 are arranged symmetrically in pairs. A water inlet is opened on the surface of the central tube 7. The other end of the central tube 7 is connected to an epoxy sealing plate 9, and the surface of the epoxy sealing plate 9 is fixedly connected to the ABS tube body 1. A first hollow fiber filter element 10 is arranged on the outside of the central tube 7. A support membrane 11 is disposed on the outer side of the hollow fiber filter element 10, and a second hollow fiber filter element 12 is disposed on the outer side of the support membrane 11. The filtration pores of the second hollow fiber filter element 12 are larger than those of the first hollow fiber filter element 10. Specifically, the filtration pore sizes of the first hollow fiber filter element 10 and the second hollow fiber filter element 12 can be 0.03 micrometers and 0.1 micrometers, respectively. The first hollow fiber filter element 10 and the second hollow fiber filter element 12 can effectively remove suspended solids, bacteria, viruses, colloids, and other tiny impurities from the water, ensuring water quality safety. A feed screen 13 is provided on the outside of the filter element 12, and an activated carbon filter element 14 is provided on the outside of the feed screen 13. The pore size of the activated carbon filter element 14 is 1-5 microns. Due to its extremely small particle size and huge specific surface area, the activated carbon filter element 14 with a pore size of 1-5 microns can efficiently adsorb and remove impurities, residual chlorine, heavy metals and organic pollutants in the water, significantly improving water quality. Its porous structure provides a large number of adsorption sites for impurities in the water. Whether it is suspended solids, colloids or dissolved organic matter, they can be firmly adsorbed on the surface, thereby achieving a purification effect.

[0023] The ultrasonic vibrator in this utility model is existing technology. Its structure and operating principle have been disclosed in a multi-segment spiral wound ultrafiltration membrane water treatment device disclosed in Chinese Patent Application No. 202221029073.X. Its working principle is that the ultrasonic vibrator releases ultrasonic waves, causing the water source and impurities in the water source to vibrate, thereby preventing impurities from clogging the pores of the non-woven filter sleeve 5 too quickly and extending the service life of the device.

[0024] refer to Figure 2A sealing block 15 is fixedly connected to the inner wall between the two flow ports 8. The surface of the sealing block 15 is respectively sealed to the first hollow fiber filter element 10, the support membrane 11, the second hollow fiber filter element 12, the feed mesh 13 and the activated carbon filter element 14. The inner side of the flow port 8 is connected to the activated carbon filter element 14.

[0025] As a technical optimization of this utility model, by setting the sealing block 15, it can be ensured that the water source enters through the activated carbon filter element 14 first, avoiding the phenomenon that the water directly bypasses the activated carbon filter element 14, the second hollow fiber filter element 12 and the first hollow fiber filter element 10 and enters the central tube 7, thereby ensuring the filtration effect of the multi-segment spiral ultrafiltration membrane structure.

[0026] refer to Figure 2 A sealing groove 16 is provided on the outer side of the bearing ring 2, and a sealing ring 17 is fixedly connected to the inner side of the filter disc 3, and the sealing ring 17 is engaged with the sealing groove 16.

[0027] As a technical optimization of this utility model, by setting the sealing groove 16 and the sealing ring 17, water can be prevented from passing directly over the non-woven filter sleeve 5 through the gap between the bearing ring 2 and the filter disc 3, thereby limiting the movement trajectory of the water.

[0028] refer to Figure 2 A pressure ring 18 is fixedly connected to the inner wall of the water inlet head, and the pressure ring 18 is used in conjunction with the filter disc 3.

[0029] As a technical optimization of this utility model, the pressure ring 18 can resist the filter disc 3 and apply pressure to it, thereby improving the sealing effect between the sealing groove 16 and the sealing ring 17.

[0030] refer to Figure 2 and Figure 4 A permeable membrane 19 is fixedly connected to the inner wall of the inlet, and the permeable membrane 19 is located inside the first hollow fiber filter element 10 and is used in conjunction with it.

[0031] As a technical optimization of this utility model, by setting the permeation membrane 19, the filtered water can be permeated through the permeation membrane 19, thereby increasing the protection of the filtered water.

[0032] refer to Figure 1 Both the inlet and outlet heads have connection ports on their outer sides, and the outer sides of the connection ports are provided with threaded grooves.

[0033] As a technical optimization of this utility model, the connection port and threaded groove facilitate the connection of the multi-segment spiral ultrafiltration membrane structure to the application area, providing an installation point for easy use by staff.

[0034] The working principle and usage process of this utility model are as follows: When using this novel multi-segment spiral ultrafiltration membrane structure, firstly, pour the water to be filtered into the inlet port. The water undergoes preliminary filtration through the non-woven filter sleeve 5, which can filter large impurities or particulate matter. Then, the water enters the activated carbon filter element 14 through the guide port 8 on the support frame 6. The water then sequentially passes through the activated carbon filter element 14, the second hollow fiber filter element 12, the first hollow fiber filter element 10, and the permeation membrane 19 for filtration and purification. When the water passes through the activated carbon filter element 14, the activated carbon filter element 14 can efficiently adsorb and remove impurities, residual chlorine, heavy metals, and organic pollutants in the water, significantly improving water quality. Its porous structure provides a large number of adsorption sites for impurities in the water. Whether it is suspended solids, colloids, or dissolved organic matter, they can be firmly adsorbed on the surface, thereby achieving a purification effect. The water passes through the feed screen 13 and enters the second hollow fiber filter element 12, which has a filtration precision of 0.1 microns. It can efficiently remove suspended solids, bacteria, viruses and other harmful substances in the water, while retaining minerals and trace elements. Then, the water passes through the support membrane 11 and the first hollow fiber filter element 10, which can further effectively remove suspended solids, bacteria, viruses, colloids and other tiny impurities in the water. Its filtration precision is usually between 0.005-0.03 microns, which can intercept most pathogenic microorganisms, while retaining natural minerals and trace elements in the water, such as calcium and magnesium, which helps to maintain the natural taste and health value of the water. Then, the filtered water permeates through the permeation membrane 19, which further protects the filtered water. Finally, the water is discharged from the drain head through the central pipe 7, thus forming a multi-stage filtration and purification effect, thereby improving the quality of pure water.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel multi-segment spiral wound ultrafiltration membrane structure, comprising an ABS tube (1), characterized in that: The two ends of the ABS tube (1) are respectively threaded with an inlet head and a drain head. A bearing ring (2) is fixedly connected to the inner wall of the ABS tube (1) near the inlet head. A filter disc (3) is fixedly connected to the outer side of the bearing ring (2). Several through holes (4) are opened on the surface of the filter disc (3), and the several through holes (4) are arranged in a ring evenly. A non-woven filter sleeve (5) is fixedly connected to the other end of the through holes (4). A support frame (6) is fixedly connected to the inner wall of the ABS tube (1), and the support frame (6) does not contact the non-woven filter sleeve (5). A central tube (7) is fixedly connected to the center of the support frame (6). Four guide ports (8) are opened on the surface of the central tube (7), and the four guide ports (8) are spaced apart by two... Two are arranged symmetrically. The surface of the central tube (7) is provided with a water inlet. The other end of the central tube (7) is connected to an epoxy sealing plate (9). The surface of the epoxy sealing plate (9) is fixedly connected to the ABS tube body (1). A first hollow fiber filter element (10) is provided on the outside of the central tube (7). A support membrane (11) is provided on the outside of the first hollow fiber filter element (10). A second hollow fiber filter element (12) is provided on the outside of the support membrane (11). The filter holes of the second hollow fiber filter element (12) are larger than those of the first hollow fiber filter element (10). A feed screen (13) is provided on the outside of the second hollow fiber filter element (12). An activated carbon filter element (14) is provided on the outside of the feed screen (13).

2. The novel multi-segment spiral wound ultrafiltration membrane structure according to claim 1, characterized in that: A sealing block (15) is fixedly connected to the inner wall between the two flow inlets (8). The surface of the sealing block (15) is sealed to the first hollow fiber filter element (10), the support membrane (11), the second hollow fiber filter element (12), the feed mesh (13), and the activated carbon filter element (14), respectively. The inner side of the flow inlet (8) is connected to the activated carbon filter element (14).

3. The novel multi-segment spiral wound ultrafiltration membrane structure according to claim 1, characterized in that: A sealing groove (16) is provided on the outer side of the bearing ring (2), and a sealing ring (17) is fixedly connected to the inner side of the filter disc (3), and the sealing ring (17) is engaged with the sealing groove (16).

4. The novel multi-segment spiral wound ultrafiltration membrane structure according to claim 1, characterized in that: The inner wall of the water inlet head is fixedly connected with a pressure ring (18), and the pressure ring (18) is used in conjunction with the filter disc (3).

5. The novel multi-segment spiral wound ultrafiltration membrane structure according to claim 1, characterized in that: The inner wall of the inlet is fixedly connected with a permeable membrane (19), and the permeable membrane (19) is located inside the first hollow fiber filter element (10) and used in conjunction with it.

6. The novel multi-segment spiral wound ultrafiltration membrane structure according to claim 1, characterized in that: Both the inlet and outlet heads are connected to a connection port on their outer sides, and the outer side of the connection port is provided with a threaded groove.

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