Adjustable oil-water separation ultrafiltration membrane

Abstract

The utility model belongs to the technical field of ultrafiltration membranes, and discloses an adjustable oil-water separation ultrafiltration membrane which comprises an ultrafiltration membrane shell, a sealing cover and a membrane wire inner core, the upper end of the membrane wire inner core is fixedly connected with an adjustable sealing assembly, the membrane wire inner core and the adjustable sealing assembly are connected in a sealed and sleeved mode, and the sealing cover is fixedly connected with the membrane wire inner core. The top of the membrane wire inner core penetrates through an adjustable sealing assembly, and the side surface of the ultrafiltration membrane shell is connected with an adjustable water inlet assembly positioned below the adjustable sealing assembly; the adjustable sealing assembly comprises a sealing head which is fixedly connected to the outer portion of the membrane wire inner core in a sleeving mode. Due to the arrangement of the adjustable sealing assembly, the outer diameter of the sealing ring can be changed through the linkage ring under the matching of the sealing head, the limiting ring and the adjusting plate, so that the adjustable sealing assembly can be matched with ultrafiltration membrane shells with different inner diameters, the applicability of the adjustable sealing assembly is improved, and the service life of the adjustable sealing assembly is prolonged. In addition, the membrane wire inner core and the adjustable sealing assembly can be conveniently taken out from the interior of the ultrafiltration membrane shell as a whole.

Description

Technical Field

[0001] This invention belongs to the field of ultrafiltration membrane technology, specifically an adjustable oil-water separation ultrafiltration membrane. Background Technology

[0002] Ultrafiltration membranes have a wide range of industrial applications and have become one of the new chemical unit operations; they are used in the separation, concentration, and purification of biological products, pharmaceutical products, and food industries; they are also used in terminal treatment devices for blood processing, wastewater treatment, and ultrapure water preparation.

[0003] Ultrafiltration membranes mainly consist of a membrane fiber core and a sealed flow guide shell. During installation, the membrane fiber core needs to be fixedly installed inside the shell, with its upper end sealingly fitted against the inner wall of the shell. This ensures that the filtered water is completely separated from the raw water and impurities before passing through the membrane fiber core. Therefore, existing membrane fiber cores require a dedicated sealing shell. Some ultrafiltration systems, to achieve a sealed fit between the two components, design the inner wall of the shell in a conical shape, allowing the upper end of the inserted core to gradually tighten inside the conical shell, achieving both a fixed installation and a seal. However, the membrane fiber... The lack of a gripping structure at the upper end of the inner core makes it difficult to pull the inner core out of the conical shell under this installation structure, resulting in difficulties in subsequent disassembly. Moreover, as the equipment is used for a long time, a large number of impurities will adhere to the surface of the membrane fibers and the micropores, thereby reducing the water purification efficiency. The raw water inflow rate remains unchanged, which leads to an increase in water pressure in the membrane cavity. This not only damages the connection and sealing performance between the shell and the cover, but also increases the frequency of impurities clogging the micropores passing through the micropores, reducing the water purification effect. Therefore, it is necessary to develop a new type of ultrafiltration membrane to solve the shortcomings of the existing technology. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides an adjustable oil-water separation ultrafiltration membrane with good adaptability.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable oil-water separation ultrafiltration membrane, comprising an ultrafiltration membrane housing, a sealing cap, and a membrane fiber core, wherein an adjustable sealing assembly is fixedly connected to the upper end of the membrane fiber core, the membrane fiber core and the adjustable sealing assembly are sealed together, the top of the membrane fiber core passes through the adjustable sealing assembly, and an adjustable water inlet assembly located below the adjustable sealing assembly is connected to the side of the ultrafiltration membrane housing;

[0006] The adjustable sealing assembly includes a sealing head that is fixedly sleeved on the outside of the inner core of the membrane fiber. A limiting ring is fixedly sleeved on the lower end of the outer surface of the sealing head. An adjusting plate is threadedly sleeved on the upper end of the outer surface of the sealing head. A linkage ring is rotatably sleeved on the outer side of the adjusting plate. A sealing ring is fixedly connected between the outer edges of the opposing surfaces of the linkage ring and the limiting ring. The outer surface of the sealing ring is in contact with the inner wall of the ultrafiltration membrane housing.

[0007] Preferably, the distance between the middle of the outer surface of the sealing ring and the inner wall of the ultrafiltration membrane housing is less than the distance between its upper and lower ends and the inner wall of the ultrafiltration membrane housing, and the top of the adjusting plate is provided with an adjusting groove.

[0008] Preferably, the adjustable water inlet assembly includes a water inlet pipe connected to the ultrafiltration membrane housing, an inner conical plugging ring is fixedly sleeved at one end of the water inlet pipe away from the ultrafiltration membrane housing, and an adjustable piston is movably sleeved inside the water inlet pipe between the ultrafiltration membrane housing and the inner conical plugging ring, one end of the adjustable piston is sealed and fitted with the inner conical plugging ring.

[0009] Preferably, the inlet pipe includes an inlet pipe body fixedly connected to the lower part of the adjustable sealing assembly on the ultrafiltration membrane housing. One end of the inlet pipe body is connected to the inside of the ultrafiltration membrane housing. The inner cone plugging ring is fixedly sleeved inside the inlet pipe body. A positioning ring is fixedly sleeved at one end of the inlet pipe body near the ultrafiltration membrane housing. A positioning spring is also provided inside the inlet pipe body. One end of the positioning spring abuts against the positioning ring, and the other end of the positioning spring abuts against the adjustable piston.

[0010] Preferably, the adjustable piston includes a limiting frame that is movably sleeved inside the water inlet pipe body. The outer surface of the limiting frame is polygonal and adapted to the inner wall of the water inlet pipe body. The limiting frame has a through hole inside.

[0011] Preferably, a coaxial adjusting sleeve is fixedly connected to the side of the limiting frame near the inner cone plug ring. An adjusting rod is threaded into the inside of the adjusting sleeve. One end of the adjusting rod passes through the adjusting sleeve and is fixedly connected to an outer cone plug. The outer surface of the outer cone plug is sealed to the inner wall of the inner cone plug ring. A groove is provided on the side of the outer cone plug away from the limiting frame.

[0012] Preferably, the sealing cap is threaded onto the upper end of the ultrafiltration membrane housing and sealed. The membrane fiber core and the adjustable sealing assembly are encapsulated inside the ultrafiltration membrane housing by the sealing cap. A water outlet pipe is connected to the top of the sealing cap, and a sewage discharge pipe is connected to the bottom of the ultrafiltration membrane housing. The lower end of the water outlet pipe is connected to the upper end of the adjustable sealing assembly inside the ultrafiltration membrane housing through the sealing cap. The water inlet pipe body is connected to the lower end of the adjustable sealing assembly inside the ultrafiltration membrane housing.

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

[0014] 1. Due to the adjustable sealing assembly, the outer diameter of the sealing ring can be changed through the linkage ring in cooperation with the sealing head, the limiting ring and the adjusting plate. This allows the adjustable sealing assembly to be adapted to ultrafiltration membrane housings with different inner diameters, which not only improves its applicability, but also makes it easier to remove the membrane fiber core and the adjustable sealing assembly as a whole from the inside of the ultrafiltration membrane housing.

[0015] 2. Due to the adjustable water inlet component, the throughput of this utility model can be adjusted through the cooperation of the water inlet pipe, the inner cone plug ring and the adjustable piston. This allows the water inlet rate to be matched with the filtration throughput of the membrane fiber core inside the ultrafiltration membrane housing, thereby ensuring the sealing performance of the ultrafiltration membrane housing and the sealing cap, while reducing the impact of impurities on the quality of the effluent through the micropores. Attached Figure Description

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

[0017] Figure 2 This is a sectional view of the front of the present invention;

[0018] Figure 3 This is a partial cross-sectional view of the front of the adjustable sealing assembly of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the adjustable water inlet assembly of this utility model;

[0020] Figure 5 This is a cross-sectional view of the front of the adjustable water inlet assembly of this utility model;

[0021] Figure 6 This is a schematic diagram of the adjustable piston of this utility model.

[0022] In the diagram: 1. Ultrafiltration membrane housing; 2. Sealing cap; 3. Membrane fiber core; 4. Adjustable sealing assembly; 41. Sealing head; 42. Limiting ring; 43. Adjusting plate; 44. Adjusting groove; 45. Linkage ring; 46. Sealing ring; 5. Adjustable water inlet assembly; 51. Water inlet pipe; 511. Water inlet pipe body; 512. Positioning ring; 513. Positioning spring; 52. Inner cone plug ring; 53. Adjustable piston; 531. Limiting frame; 532. Adjusting sleeve; 533. Through hole; 534. Adjusting rod; 535. Outer cone plug; 536. Groove; 6. Water outlet pipe; 7. Sewage pipe. Detailed Implementation

[0023] 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.

[0024] like Figures 1 to 6 As shown, this utility model provides an adjustable oil-water separation ultrafiltration membrane, including an ultrafiltration membrane housing 1, a sealing cap 2, and a membrane fiber core 3. An adjustable sealing assembly 4 is fixedly connected to the upper end of the membrane fiber core 3. The membrane fiber core 3 and the adjustable sealing assembly 4 are sealed together. The top of the membrane fiber core 3 passes through the adjustable sealing assembly 4. An adjustable water inlet assembly 5 located below the adjustable sealing assembly 4 is connected to the side of the ultrafiltration membrane housing 1.

[0025] The adjustable sealing assembly 4 includes a sealing head 41 fixedly sleeved on the outside of the membrane fiber core 3. A limiting ring 42 is fixedly sleeved on the lower end of the outer surface of the sealing head 41, and an adjusting plate 43 is threadedly sleeved on the upper end of the outer surface of the sealing head 41. A linkage ring 45 is rotatably sleeved on the outer side of the adjusting plate 43. A sealing ring 46 is fixedly connected between the outer edges of the opposing surfaces of the linkage ring 45 and the limiting ring 42. The outer surface of the sealing ring 46 contacts the inner wall of the ultrafiltration membrane housing 1. Due to the setting of the adjustable sealing assembly 4, the outer diameter of the sealing ring 46 can be changed through the linkage ring 45 with the cooperation of the sealing head 41, the limiting ring 42 and the adjusting plate 43. This allows the adjustable sealing assembly 4 to be adapted to ultrafiltration membrane housings 1 with different inner diameters, which not only improves its applicability but also makes it easier to remove the membrane fiber core 3 and the adjustable sealing assembly 4 as a whole from the inside of the ultrafiltration membrane housing 1.

[0026] like Figure 2 and Figure 3 As shown, the distance between the middle of the outer surface of the sealing ring 46 and the inner wall of the ultrafiltration membrane housing 1 is less than the distance between its upper and lower ends and the inner wall of the ultrafiltration membrane housing 1. An adjustment groove 44 is provided on the top of the adjustment plate 43. Due to the setting of the adjustment groove 44, the user can easily rotate the adjustment plate 43, and at the same time, the consumables can be reduced.

[0027] like Figure 4As shown, the adjustable water inlet assembly 5 includes an inlet pipe 51 connected to the ultrafiltration membrane housing 1. An inner cone plugging ring 52 is fixedly sleeved at one end of the inlet pipe 51 away from the ultrafiltration membrane housing 1. An adjustable piston 53 is movably sleeved inside the inlet pipe 51 between the ultrafiltration membrane housing 1 and the inner cone plugging ring 52. One end of the adjustable piston 53 is sealed and fitted with the inner cone plugging ring 52. Due to the setting of the adjustable water inlet assembly 5, the throughput can be adjusted by the cooperation of the inlet pipe 51, the inner cone plugging ring 52 and the adjustable piston 53, so that the water inlet rate can be adapted to the filtration throughput of the inner membrane fiber core 3 of the ultrafiltration membrane housing 1, thereby ensuring the sealing performance of the ultrafiltration membrane housing 1 and the sealing cover 2, and reducing the impact of impurities on the quality of the effluent through the micropores.

[0028] like Figure 5 As shown, the inlet pipe 51 includes an inlet pipe body 511 fixedly connected to the underside of the adjustable sealing assembly 4 on the upper part of the ultrafiltration membrane housing 1. One end of the inlet pipe body 511 is connected to the interior of the ultrafiltration membrane housing 1. An inner cone plugging ring 52 is fixedly sleeved inside the inlet pipe body 511. A positioning ring 512 is fixedly sleeved inside the inlet pipe body 511 near the ultrafiltration membrane housing 1. A positioning spring 513 is also provided inside the inlet pipe body 511. One end of the positioning spring 513 abuts against the positioning ring 512, and the other end of the positioning spring 513 abuts against the adjustable piston 53. Due to the setting of the positioning spring 513, under the restriction of the positioning ring 512, its elastic recovery performance can push the adjustable piston 53, so that the adjustable piston 53 and the inner cone plugging ring 52 are tightly sleeved together. This not only helps to adjust the inlet water flow rate, but also avoids backflow during backwashing.

[0029] like Figure 5 and Figure 6 As shown, the adjustable piston 53 includes a limiting frame 531 that is movably sleeved inside the water inlet pipe body 511. The outer surface of the limiting frame 531 is polygonal and is adapted to the inner wall of the water inlet pipe body 511. A through hole 533 is opened inside the limiting frame 531. Due to the setting of the limiting frame 531, it can not only be adapted to the positioning spring 513 so that the outer cone plug 535 can abut against the inner cone plug ring 52, but also the outer surface of the limiting frame 531 can be adapted to the inner wall of the water inlet pipe body 511, thereby avoiding the situation where the limiting frame 531 and the adjusting sleeve 532 cannot be adjusted as the adjusting rod 534 rotates.

[0030] like Figure 5 and Figure 6As shown, a coaxial adjusting sleeve 532 is fixedly connected to the side of the limiting frame 531 near the inner cone plug ring 52. An adjusting rod 534 is threaded inside the adjusting sleeve 532. One end of the adjusting rod 534 passes through the adjusting sleeve 532 and is fixedly connected to an outer cone plug 535. The outer surface of the outer cone plug 535 is sealed to the inner wall of the inner cone plug ring 52. A groove 536 is provided on the side of the outer cone plug 535 away from the limiting frame 531. Due to the setting of the groove 536, the user can easily rotate the outer cone plug 535, and then, with the cooperation of the limiting frame 531, the adjusting rod 534 and the adjusting sleeve 532 move relative to each other, thereby achieving the effect of adjusting the distance between the outer cone plug 535 and the limiting frame 531.

[0031] like Figure 1 As shown, the sealing cap 2 is threaded onto the upper end of the ultrafiltration membrane housing 1 and sealed. The membrane fiber core 3 and the adjustable sealing assembly 4 are encapsulated inside the ultrafiltration membrane housing 1 through the sealing cap 2. The top of the sealing cap 2 is connected to the water outlet pipe 6, and the bottom of the ultrafiltration membrane housing 1 is connected to the sewage discharge pipe 7. The lower end of the water outlet pipe 6 is connected to the upper end of the adjustable sealing assembly 4 inside the ultrafiltration membrane housing 1 through the sealing cap 2. The water inlet pipe body 511 is connected to the lower end of the adjustable sealing assembly 4 inside the ultrafiltration membrane housing 1.

[0032] Working principle and usage process of this utility model:

[0033] Insert the membrane fiber core 3 and the adjustable sealing assembly 4 into the ultrafiltration membrane housing 1 from top to bottom. Then, by rotating the adjusting plate 43 through the adjusting groove 44, the adjusting plate 43 can be moved down with the engagement of the threads on the outer surface of the sealing head 41. Then, the sealing ring 46 is pressed down by the linkage ring 45, causing the middle part of the sealing ring 46 to arch outward until the outer surface of the sealing ring 46 is tightly attached to the inner wall of the ultrafiltration membrane housing 1.

[0034] As the equipment is used, rotating the outer cone plug 535 via the slot 536 allows the adjusting rod 534 and adjusting sleeve 532 to rotate relative to each other under the constraint of the inner wall of the inlet pipe body 511 and the outer surface of the limiting frame 531. This increases the distance between the limiting frame 531 and the outer cone plug 535 due to the threaded engagement between them. Since the outer cone plug 535 is restricted by the inner cone plug ring 52, the increased distance causes the limiting frame 531 to gradually move closer to the positioning ring 512, further compressing the positioning spring 513 and increasing its elastic strength. This causes the raw water with a constant flow rate to push the outer cone plug 535 away from the inner cone plug ring 52, reducing the water flow rate of the inner cone plug ring 52. This allows it to adapt to the throughput efficiency of the inner membrane fiber core 3 of the ultrafiltration membrane housing 1.

[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. An adjustable oil-water separation ultrafiltration membrane, comprising an ultrafiltration membrane shell (1), a sealing cover (2) and a membrane filament inner core (3), characterized in that: The upper end of the membrane filament inner core (3) is fixedly connected with an adjustable sealing assembly (4), the membrane filament inner core (3) is sealingly sleeved with the adjustable sealing assembly (4), the top of the membrane filament inner core (3) penetrates through the adjustable sealing assembly (4), and the side of the ultrafiltration membrane shell (1) is connected with an adjustable water inlet assembly (5) located below the adjustable sealing assembly (4); The adjustable sealing assembly (4) comprises a sealing head (41) fixedly sleeved outside the membrane filament inner core (3), the lower end of the outer surface of the sealing head (41) is fixedly sleeved with a limiting ring (42), the upper end of the outer surface of the sealing head (41) is threadedly sleeved with an adjusting plate (43), the outer side of the adjusting plate (43) is rotationally sleeved with a linkage ring (45), the outer edges of the opposite surfaces of the linkage ring (45) and the limiting ring (42) are fixedly connected with a sealing ring (46), and the outer surface of the sealing ring (46) is in contact with the inner wall of the ultrafiltration membrane shell (1).

2. The adjustable oil-water separation ultrafiltration membrane according to claim 1, characterized in that: The distance between the middle part of the outer surface of the sealing ring (46) and the inner wall of the ultrafiltration membrane shell (1) is smaller than the distance between the upper end and the lower end of the sealing ring (46) and the inner wall of the ultrafiltration membrane shell (1), and the top of the adjusting plate (43) is provided with an adjusting groove (44).

3. The adjustable oil-water separation ultrafiltration membrane according to claim 1, wherein: The adjustable water inlet assembly (5) comprises a water inlet pipe (51) connected to the ultrafiltration membrane shell (1), one end of the inner part of the water inlet pipe (51) away from the ultrafiltration membrane shell (1) is fixedly sleeved with an inner tapered blocking ring (52), and the inner part of the water inlet pipe (51) is movably sleeved with an adjustable piston (53) located between the ultrafiltration membrane shell (1) and the inner tapered blocking ring (52), and one end of the adjustable piston (53) is sealingly attached to the inner tapered blocking ring (52).

4. The adjustable oil-water separation ultrafiltration membrane according to claim 3, characterized in that: The water inlet pipe (51) comprises a water inlet pipe body (511) fixedly connected below the adjustable sealing assembly (4) of the ultrafiltration membrane shell (1), one end of the water inlet pipe body (511) is connected with the inner part of the ultrafiltration membrane shell (1), the inner tapered blocking ring (52) is fixedly sleeved in the inner part of the water inlet pipe body (511), one end of the inner part of the water inlet pipe body (511) close to the ultrafiltration membrane shell (1) is fixedly sleeved with a positioning ring (512), the inner part of the water inlet pipe body (511) is further provided with a positioning spring (513), one end of the positioning spring (513) abuts against the positioning ring (512), and the other end of the positioning spring (513) abuts against the adjustable piston (53).

5. The adjustable oil-water separation ultrafiltration membrane according to claim 4, characterized in that: The adjustable piston (53) comprises a limiting frame (531) movably sleeved in the inner part of the water inlet pipe body (511), the outer surface of the limiting frame (531) is polygonal and matched with the inner wall of the water inlet pipe body (511), and the inner part of the limiting frame (531) is provided with a through hole (533).

6. The adjustable oil-water separation ultrafiltration membrane according to claim 5, characterized in that: The limiting frame (531) is fixedly connected with a coaxial adjusting sleeve (532) near one side of the inner conical ring (52), the inside of the adjusting sleeve (532) is threadedly sleeved with an adjusting rod (534), one end of the adjusting rod (534) penetrates through the adjusting sleeve (532) and is fixedly connected with an outer conical plug (535), the outer surface of the outer conical plug (535) is sealingly sleeved with the inner wall of the inner conical ring (52), and a push groove (536) is formed in the side of the outer conical plug (535) away from the limiting frame (531).

7. The adjustable oil-water separation ultrafiltration membrane according to claim 4, wherein: The sealing cover (2) is threadedly sleeved with and sealingly connected with the upper end of the ultrafiltration membrane shell (1), the membrane wire inner core (3) and the adjustable sealing assembly (4) are packaged in the inside of the ultrafiltration membrane shell (1) through the sealing cover (2), the top of the sealing cover (2) is connected with the water outlet pipe (6), the bottom of the ultrafiltration membrane shell (1) is connected with the blowdown pipe (7), the lower end of the water outlet pipe (6) is communicated with the upper end of the adjustable sealing assembly (4) in the ultrafiltration membrane shell (1) through the sealing cover (2), and the water inlet pipe body (511) is communicated with the lower end of the adjustable sealing assembly (4) in the ultrafiltration membrane shell (1).

Images