Ultrafiltration membrane wastewater treatment device with self-cleaning function
By using linkage components and a drive mechanism to make the membrane fiber core move continuously and reciprocally, the problem of impurity accumulation on the membrane fiber surface is solved, the self-cleaning effect of the ultrafiltration membrane device is achieved, and the water quality and water pressure are kept stable.
Patent Information
- Application Number
- CN202422956707.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-02
AI Technical Summary
After long-term use, existing ultrafiltration membrane devices accumulate a large number of impurities on the surface of the membrane fibers, affecting water quality and water pressure, and resulting in a decline in performance.
An ultrafiltration membrane device with self-cleaning function was designed. Through linkage components and drive mechanism, the inner core of the membrane fiber is made to move continuously and reciprocally under the action of water flow, so as to achieve efficient cleaning.
It effectively improves the cleaning effect of membrane fibers, prevents the accumulation of impurities, and maintains stable water quality and water pressure.
Smart Images
Figure CN223766154U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of wastewater treatment technology, specifically an ultrafiltration membrane wastewater treatment device with self-cleaning function. Background Technology
[0002] With the continuous progress and development of production and life, the resulting water resource problems are becoming increasingly prominent. Among them, the treatment of industrial wastewater and domestic wastewater is particularly important and closely related to the quality of social development. Industrial wastewater refers to the wastewater produced in the chemical industry, such as oily wastewater from ethylene, polyethylene, and rubber production plants, as well as acidic and alkaline wastewater containing various harmful substances or heavy metal salts produced by steel smelting and dyeing equipment. Domestic wastewater mainly refers to the wastewater discharged from restaurants, hospitals, residential areas, and other areas.
[0003] Currently, most wastewater treatment methods use ultrafiltration membrane modules. When water flows under external or internal pressure to the membrane fibers, purified water passes through and is discharged, while impurities are blocked. Over time, a large amount of filtered impurities remain on the surface or inner wall of the ultrafiltration membrane fibers, affecting water quality and significantly reducing water pressure, thus impacting performance. Therefore, it is necessary to develop an ultrafiltration membrane wastewater treatment device with self-cleaning function to address the shortcomings of existing technologies. Summary of the Invention
[0004] To address the problems mentioned in the background section, this invention provides an ultrafiltration membrane wastewater treatment device with a self-cleaning function, which has the advantage of good cleaning effect.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an ultrafiltration membrane wastewater treatment device with self-cleaning function, comprising an ultrafiltration membrane housing, a membrane fiber core and a sealing ring, wherein the membrane fiber core is fixedly installed inside the ultrafiltration membrane housing through the sealing ring, and a driving mechanism is connected to the lower end of the membrane fiber core, wherein the lower end of the driving mechanism is movably installed at the bottom of the inner cavity of the ultrafiltration membrane housing;
[0006] The driving mechanism consists of a positioning component, a power component, and a linkage component connecting the two. The positioning component is fixedly connected to the bottom of the membrane fiber core, and the power component is movably and fixedly installed at the bottom of the inner cavity of the ultrafiltration membrane housing. The linkage component consists of a plurality of second linkage sliders fixedly connected to the bottom of the positioning component and evenly distributed, and a plurality of first linkage sliders fixedly connected to the top of the power component and evenly distributed. The plurality of first linkage sliders and second linkage sliders correspond one-to-one, and the facing surfaces of the first linkage sliders and second linkage sliders are mutually parallel inclined surfaces.
[0007] Preferably, the positioning component includes a positioning ring movably sleeved between the ultrafiltration membrane housing and the membrane fiber core. A limiting component is embedded on the outer side of the positioning ring. A plurality of evenly distributed limiting blocks are fixedly connected to the outer surface of the limiting component. The limiting blocks are slidably engaged with the inside of the ultrafiltration membrane housing. A plurality of evenly distributed connecting blocks are fixedly connected to the inside of the positioning ring. The inner side of the connecting blocks is fixedly connected to the lower end of the outer surface of the membrane fiber core.
[0008] Preferably, the limiting component includes a limiting ring that is movably sleeved on the outer surface of the positioning ring. A limiting cavity is formed on the outer surface of the positioning ring. A spring is provided inside the limiting cavity. One end of the spring is fixedly connected to the inner wall of the limiting cavity, and the other end of the spring extends to the outside of the limiting cavity and is fixedly connected to the inner wall of the limiting ring.
[0009] Preferably, the power assembly includes a fixing ring disposed at the lower end of the membrane fiber core and the positioning assembly. A spiral guide groove is sleeved on the outer surface of the fixing ring. The outer ring of the spiral guide groove is fixedly sleeved inside the ultrafiltration membrane housing. A coaxial second bearing is connected to the bottom of the fixing ring. The inner ring of the second bearing is fixedly connected to the bottom of the fixing ring, and the outer ring of the second bearing is fixedly connected to the bottom of the inner cavity of the ultrafiltration membrane housing.
[0010] Preferably, the inside of the fixing ring is provided with a plurality of evenly distributed spiral guide grooves, and the inner wall of the spiral guide grooves is smooth.
[0011] Preferably, the first linkage slider is fixedly connected to the top of the fixed ring, and the second linkage slider is fixedly connected to the bottom of the positioning ring. The first linkage slider is an arc-shaped structure coaxial with the fixed ring, and the second linkage slider is an arc-shaped structure coaxial with the positioning ring.
[0012] Preferably, the top of the ultrafiltration membrane housing is threaded with a sealed encapsulation cap, the top of the encapsulation cap is connected to a clean water inlet, the side of the ultrafiltration membrane housing is connected to a raw water inlet located below the sealing ring, and the bottom of the ultrafiltration membrane housing is connected to a drain outlet. Valves are installed in the clean water inlet, the raw water inlet, and the drain outlet.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] Due to the design of the linkage component, the water flow, in conjunction with the positioning component and the power component, enables the linkage component to move through the power component. This, in turn, causes the linkage component to drive the lower end of the membrane fiber core to move rapidly and continuously through the limiting component, thereby effectively improving the rinsing and cleaning effect. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the internal structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the drive mechanism of this utility model;
[0018] Figure 4 This is a schematic diagram of the structure above the drive mechanism of this utility model;
[0019] Figure 5 This is a cross-sectional view of the top of the positioning component of this utility model;
[0020] Figure 6 This is a cross-sectional view of the front of the positioning component of this utility model.
[0021] In the diagram: 1. Ultrafiltration membrane housing; 2. Membrane fiber core; 3. Sealing ring; 4. Positioning assembly; 41. Positioning ring; 42. Limiting assembly; 421. Limiting ring; 422. Limiting cavity; 423. Spring; 43. Limiting block; 44. Connecting block; 5. Power assembly; 51. Fixing ring; 52. Spiral guide groove; 53. First bearing; 54. Second bearing; 6. Linkage assembly; 61. First linkage slider; 62. Second linkage slider; 7. Encapsulation cover; 8. Clean water outlet; 9. Raw water outlet; 10. Sewage outlet. Detailed Implementation
[0022] 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.
[0023] like Figures 1 to 6 As shown, this utility model provides an ultrafiltration membrane wastewater treatment device with self-cleaning function, including an ultrafiltration membrane housing 1, a membrane fiber core 2 and a sealing ring 3. The membrane fiber core 2 is fixedly installed inside the ultrafiltration membrane housing 1 through the sealing ring 3. The lower end of the membrane fiber core 2 is connected to a driving mechanism, and the lower end of the driving mechanism is movably installed at the bottom of the inner cavity of the ultrafiltration membrane housing 1.
[0024] The drive mechanism consists of a positioning component 4, a power component 5, and a linkage component 6 connecting the two. The positioning component 4 is fixedly connected to the bottom of the membrane fiber core 2, and the power component 5 is movably and fixedly installed at the bottom of the inner cavity of the ultrafiltration membrane housing 1. The linkage component 6 consists of a number of second linkage sliders 62 fixedly connected to the bottom of the positioning component 4 and evenly distributed, and a number of first linkage sliders 61 fixedly connected to the top of the power component 5 and evenly distributed. The number of first linkage sliders 61 and second linkage sliders 62 correspond one-to-one, and the facing surfaces of the first linkage sliders 61 and second linkage sliders 62 are parallel inclined planes. Due to the setting of the linkage component 6, the setting of the first linkage sliders 61 and second linkage sliders 62 allows the water flow through the power component 5 to make the lower end of the positioning component 4 and the membrane fiber core 2 rise and fall while rotating, which greatly improves the vibration intensity of the membrane fiber core 2, thereby effectively improving the cleaning effect.
[0025] like Figure 3 and Figure 4 As shown, the positioning component 4 includes a positioning ring 41 movably sleeved between the ultrafiltration membrane housing 1 and the membrane fiber core 2. A limiting component 42 is embedded on the outer side of the positioning ring 41. A plurality of evenly distributed limiting blocks 43 are fixedly connected to the outer surface of the limiting component 42. The limiting blocks 43 are slidably engaged with the inside of the ultrafiltration membrane housing 1. A plurality of evenly distributed connecting blocks 44 are fixedly connected to the inside of the positioning ring 41. The inner side of the connecting blocks 44 is fixedly connected to the lower end of the outer surface of the membrane fiber core 2. Due to the setting of the limiting blocks 43, the rotation of the outer end of the spring 423 can be restricted with the cooperation of the limiting ring 421, so that when the positioning ring 41 rotates, the spring 423 can deform and obtain elastic potential energy. The setting of the connecting blocks 44 not only allows the membrane fiber core 2 to rotate when the positioning ring 41 rotates, but also ensures that the flushing water can flow smoothly through the positioning component 4 into the power component 5.
[0026] like Figure 4 , Figure 5 and Figure 6 As shown, the limiting component 42 includes a limiting ring 421 that is movably sleeved on the outer surface of the positioning ring 41. A limiting cavity 422 is formed on the outer surface of the positioning ring 41. A spring 423 is provided inside the limiting cavity 422. One end of the spring 423 is fixedly connected to the inner wall of the limiting cavity 422, and the other end of the spring 423 extends to the outside of the limiting cavity 422 and is fixedly connected to the inner wall of the limiting ring 421. Due to the setting of the spring 423, under the action of its elastic restoring force, the rotating positioning ring 41 and the ultrafiltration membrane housing 1 can immediately rotate in opposite directions, thereby effectively improving the relative movement between the water flow and the membrane fiber core 2, thereby improving the efficiency and effect of the water flow in washing away impurities.
[0027] like Figure 3 and Figure 4As shown, the power assembly 5 includes a fixing ring 51 disposed at the lower end of the membrane fiber core 2 and the positioning assembly 4. A spiral guide groove 52 is sleeved on the outer surface of the fixing ring 51. The outer ring of the spiral guide groove 52 is fixedly sleeved inside the ultrafiltration membrane housing 1. A coaxial second bearing 54 is connected to the bottom of the fixing ring 51. The inner ring of the second bearing 54 is fixedly connected to the bottom of the fixing ring 51, and the outer ring of the second bearing 54 is fixedly connected to the bottom of the inner cavity of the ultrafiltration membrane housing 1. Due to the arrangement of the first bearing 53 and the second bearing 54, the stability of the fixing ring 51 can be ensured, so that when the water flows through the spiral guide groove 52, it can drive the fixing ring 51 to rotate continuously and stably.
[0028] like Figure 3 and Figure 4 As shown, the fixed ring 51 has several evenly distributed spiral guide grooves 52 fixedly opened inside, and the inner wall of the spiral guide grooves 52 is smooth.
[0029] like Figure 3 and Figure 4 As shown, the first linkage slider 61 is fixedly connected to the top of the fixing ring 51, and the second linkage slider 62 is fixedly connected to the bottom of the positioning ring 41. The first linkage slider 61 is an arc-shaped structure coaxial with the fixing ring 51, and the second linkage slider 62 is an arc-shaped structure coaxial with the positioning ring 41.
[0030] like Figure 1 As shown, a sealed encapsulation cap 7 is threaded onto the top of the ultrafiltration membrane housing 1. A clean water inlet 8 is connected to the top of the encapsulation cap 7. A raw water inlet 9 located below the sealing ring 3 is connected to the side of the ultrafiltration membrane housing 1. A drain outlet 10 is connected to the bottom of the ultrafiltration membrane housing 1. Valves are installed in the clean water inlet 8, the raw water inlet 9, and the drain outlet 10. Due to the valves, users can easily control the direction of water flow, thereby achieving the effect of water purification or rinsing.
[0031] Working principle and usage process of this utility model:
[0032] The raw water to be purified is injected through the raw water inlet 9, so that the raw water comes into contact with the membrane fiber core 2 under the restriction of the ultrafiltration membrane housing 1 and the sealing ring 3. Then, under the action of pressure difference, the water passes through the micropores on the membrane fiber core 2 and flows into the upper part of the sealing ring 3, and finally flows out through the clean water outlet 8. Meanwhile, the impurities carried in the raw water are blocked by the micropores and adhere to the outer surface of the membrane fiber core 2.
[0033] When cleaning is required, clean water is injected through the clean water inlet 8, allowing the clean water to enter the membrane fiber core 2 under the restriction of the ultrafiltration membrane housing 1 and the sealing ring 3, and flow out through the micropores, thereby impacting and removing impurities clogging the micropores. At the same time, the valve in the drain outlet 10 is opened, allowing the injected clean water to carry the impacted impurities downward along the inner wall between the ultrafiltration membrane housing 1 and the membrane fiber core 2, which helps to flush away impurities attached to the outer surface of the membrane fiber core 2. The water flows downward from between the membrane fiber core 2 and the positioning ring 41 into the spiral guide groove 52 and finally out through the drain outlet 10. Then, under the cooperation of the first bearing 53 and the second bearing 54, the fixing ring 51 is rotated. Since the rotation of the fixing ring 51 can be caused by the inclined surface of the second linkage slider 62 and the first linkage slider 61, the first linkage slider 61 pushes the second linkage slider 62 to rotate laterally and move upward. The movement of the second linkage slider 62 can cause the lower end of the membrane fiber core 2 to move upward and rotate through the positioning component 4.
[0034] When the first linkage slider 61 disengages from the second linkage slider 62, the lower end of the membrane fiber core 2 immediately moves downward in the opposite direction under the action of gravity and water flow impact. Under the deformation restoring force of the spring 423, the lower end of the membrane fiber core 2 immediately rotates in the opposite direction. This achieves the effect of continuous and rapid reciprocating rotation and lifting and lowering of the membrane fiber core 2 during rinsing, which makes the membrane fiber core 2 vibrate continuously, thereby improving the rinsing effect.
[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 ultrafiltration membrane wastewater treatment device with self-cleaning function, comprising an ultrafiltration membrane shell (1), a membrane filament inner core (2) and a sealing ring (3), characterized in that: The membrane filament inner core (2) is fixedly installed in the inside of the ultrafiltration membrane shell (1) through the sealing ring (3), the lower end of the membrane filament inner core (2) is connected with the driving mechanism, and the lower end of the driving mechanism is movably installed on the bottom of the inner cavity of the ultrafiltration membrane shell (1); The driving mechanism is composed of the positioning assembly (4), the power assembly (5) and the linkage assembly (6) connected between the two, the positioning assembly (4) is fixedly connected to the bottom of the membrane filament inner core (2), the power assembly (5) is movably fixedly installed on the bottom of the inner cavity of the ultrafiltration membrane shell (1), the linkage assembly (6) is composed of a plurality of second linkage sliding blocks (62) fixedly connected to the bottom of the positioning assembly (4) and uniformly distributed and a plurality of first linkage sliding blocks (61) fixedly connected to the top of the power assembly (5) and uniformly distributed, the first linkage sliding block (61) and the second linkage sliding block (62) are one-to-one corresponding, and the opposite surfaces of the first linkage sliding block (61) and the second linkage sliding block (62) are mutually parallel inclined surfaces.
2. The ultrafiltration membrane wastewater treatment device with self-cleaning function according to claim 1, characterized in that: The positioning assembly (4) comprises the positioning ring (41) movably sleeved between the ultrafiltration membrane shell (1) and the membrane filament inner core (2), the outer side of the positioning ring (41) is embedded with the limiting assembly (42), the outer surface of the limiting assembly (42) is fixedly connected with a plurality of limiting blocks (43) uniformly distributed, the limiting blocks (43) are slidably connected in the inside of the ultrafiltration membrane shell (1), and the inside of the positioning ring (41) is fixedly connected with a plurality of connecting blocks (44) uniformly distributed.
3. The ultrafiltration membrane wastewater treatment device with self-cleaning function according to claim 2, characterized in that: The limiting assembly (42) comprises the limiting ring (421) movably sleeved on the outer surface of the positioning ring (41), the outer surface of the positioning ring (41) is provided with the limiting cavity (422), the inside of the limiting cavity (422) is provided with the clockwork spring (423), one end of the clockwork spring (423) is fixedly connected to the inner wall of the limiting cavity (422), and the other end of the clockwork spring (423) extends to the outside of the limiting cavity (422) and is fixedly connected to the inner wall of the limiting ring (421).
4. The ultrafiltration membrane wastewater treatment device with self-cleaning function according to claim 1, characterized in that: The power assembly (5) comprises the fixed ring (51) arranged at the lower end of the membrane filament inner core (2) and the positioning assembly (4), the outer surface of the fixed ring (51) is sleeved with the spiral flow guide groove (52), the outer ring of the spiral flow guide groove (52) is fixedly sleeved in the inside of the ultrafiltration membrane shell (1), the bottom of the fixed ring (51) is connected with the coaxial second bearing (54), the inner ring of the second bearing (54) is fixedly connected to the bottom of the fixed ring (51), and the outer ring of the second bearing (54) is fixedly connected to the bottom of the inner cavity of the ultrafiltration membrane shell (1).
5. The ultrafiltration membrane wastewater treatment device with self-cleaning function according to claim 4, characterized in that: A plurality of spiral flow guide grooves (52) are fixedly arranged in the inside of the fixed ring (51), and the inner wall of the spiral flow guide groove (52) is smooth.
6. The ultrafiltration membrane wastewater treatment device with self-cleaning function according to claim 4, characterized in that: The first linkage slider (61) is fixedly connected to the top of the fixed ring (51), the second linkage slider (62) is fixedly connected to the bottom of the positioning ring (41), the first linkage slider (61) is an arc structure coaxial to the fixed ring (51), and the second linkage slider (62) is an arc structure coaxial to the positioning ring (41).
7. The device according to claim 1, wherein the device is characterized by: The top of the ultrafiltration membrane shell (1) is threadedly sleeved with a sealed packaging cover (7), the top of the packaging cover (7) is connected with a clean water outlet (8), the side of the ultrafiltration membrane shell (1) is connected with a raw water inlet (9) located below the sealing ring (3), the bottom of the ultrafiltration membrane shell (1) is connected with a blowdown outlet (10), and valves are mounted in the clean water outlet (8), the raw water inlet (9) and the blowdown outlet (10).