A graphene filtration membrane device

Abstract

This utility model discloses a graphene filter membrane device, including an outer cylinder, an upper cover sealed to the top of the outer cylinder, a lower cover sealed to the bottom of the outer cylinder, a mounting base fixedly disposed on the inner wall of the outer cylinder, and a cylindrical graphene filter membrane sealed to the top surface of the mounting base. The end of the graphene filter membrane away from the mounting base forms a sealed connection with the interior of the upper cover. A sewage inlet pipe is installed on the upper cover, one end of which is connected to a sewage source through a switch valve, and the other end extends into the inner cavity of the graphene filter membrane for injecting sewage to be filtered into the inner cavity of the graphene filter membrane. The lower end of the lower cover forms a clean water outlet, through which the clean water obtained after filtration by the graphene filter membrane is discharged and collected. The stable fixation and sealed connection of the filter membrane are achieved by multiple pairs of clamps in a circumferential array cooperating with the slots on the graphene filter membrane. This facilitates disassembly and replacement, further optimizing the maintenance efficiency of the device.

Description

Technical Field

[0001] This utility model relates to the field of water treatment device technology, specifically a graphene filtration membrane device. Background Technology

[0002] With rapid industrialization and urbanization, water pollution has become increasingly serious, and the demand for efficient and environmentally friendly water treatment technologies has become increasingly urgent. Traditional filtration membrane devices typically suffer from problems such as low filtration efficiency, easy clogging, and difficulty in cleaning.

[0003] Graphene, as a novel nanomaterial, possesses excellent mechanical strength, chemical stability, and efficient filtration performance. However, it still faces technical challenges in practical applications, such as unstable fixation and inconvenient cleaning.

[0004] Therefore, there is a need for a graphene filter membrane device that is structurally stable and easy to disassemble and clean, in order to improve filtration efficiency and extend service life. Utility Model Content

[0005] The purpose of this invention is to provide a graphene filtration membrane device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A graphene filter membrane device includes an outer cylinder, characterized in that: an upper cover is sealed to the top of the outer cylinder, a lower cover is sealed to the bottom of the outer cylinder, a mounting base is fixedly disposed on the inner wall of the outer cylinder, a cylindrical graphene filter membrane is sealed to the top surface of the mounting base, one end of the graphene filter membrane away from the mounting base is sealed to the interior of the upper cover, a wastewater inlet pipe is installed on the upper cover, one end of the wastewater inlet pipe is connected to a wastewater source through a switch valve, and the other end extends to the inner cavity of the graphene filter membrane for injecting wastewater to be filtered into the inner cavity of the graphene filter membrane; the lower end of the lower cover forms a clean water outlet, through which the clean water obtained after filtration by the graphene filter membrane is discharged and collected.

[0008] Preferably, the graphene filter membrane is sealed to the top surface of the mounting substrate by a stabilizing clamp. The stabilizing clamp consists of multiple pairs of clamping rods arranged circumferentially on the edge of the top surface of the mounting substrate. The graphene filter membrane forms a slot corresponding to the clamping rods. The connection is achieved by inserting the multiple pairs of clamping rods into the slots respectively. When the graphene filter membrane, which forms a sealed connection with the inside of the upper cover, is fixedly installed on the outer cylinder by the upper cover, the lower end face of the graphene filter membrane will be pressed against the top surface of the mounting substrate to achieve a sealed connection.

[0009] Preferably, the upper cover and the outer cylinder are independently set and are connected and fixed to each other by screwing. The inner wall of the upper cover forms a connecting cylinder, and the lower end face of the connecting cylinder forms a semi-circular retaining ring. The top surface of the graphene filter membrane forms an annular groove corresponding to the semi-circular retaining ring. The semi-circular retaining ring is inserted and tightened into the annular groove to achieve a sealed connection between the end of the graphene filter membrane away from the mounting substrate and the interior of the upper cover.

[0010] Preferably, the upper cover includes a main cover and a threaded screw body. The threaded screw body is rotatably connected to the lower end of the main cover. The inner annular surface of the threaded screw body forms a thread, and the outer annular surface at the top of the outer cylinder forms a corresponding thread. The threaded screw body is screwed into the outer cylinder to achieve mutual connection and fixation.

[0011] Preferably, the outer cylinder is provided with a high-pressure cleaning pipe, one end of which is connected to the cavity of the outer cylinder, and the other end is connected to a gas source through a flow regulating valve; the upper cover is provided with an exhaust pipe connected to the inner cavity of the graphene filter membrane, and an air valve is connected in the exhaust pipe. When the graphene filter membrane needs to be cleaned, the flow regulating valve and the air valve are opened to allow the high-pressure cleaning pipe to continuously flow in and flush the graphene filter membrane under high pressure to achieve cleaning.

[0012] Preferably, the high-pressure cleaning pipe has two sets, and the two sets of high-pressure cleaning pipes are symmetrically arranged in the outer cylinder.

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

[0014] 1. This utility model achieves stable fixation and sealed connection of the filter membrane by cooperating with the grooves on the graphene filter membrane through multiple pairs of clamping rods in a circumferential array. This design not only ensures the stability of the filter membrane during operation but also facilitates disassembly and replacement, further optimizing the maintenance efficiency of the device. Furthermore, the upper cover and outer cylinder are connected by threads, and the graphene filter membrane achieves a sealed connection by clamping the semi-circular retaining ring with the annular groove, making the installation and disassembly of the filter membrane more convenient and requiring no complex tools during operation.

[0015] 2. By setting up a high-pressure cleaning pipe and an exhaust pipe, preferably using two sets of symmetrically arranged high-pressure cleaning pipes, this utility model can perform high-pressure gas flushing on the graphene filter membrane, effectively removing dirt and blockages from the membrane surface, significantly improving the cleaning effect and extending the service life of the filter membrane. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

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

[0018] Figure 3 for Figure 2 A magnified view of part A in the image;

[0019] Figure 4 This is a rear half-sectional view of the present invention;

[0020] Figure 5 This is a top view of the present invention with the top cover removed.

[0021] In the diagram: 1-Outer cylinder; 2-Upper cover; 3-Lower cover; 4-Mounting substrate; 5-Graphene filter membrane; 6-Sewage inlet pipe; 7-Switch valve; 8-Clean water outlet; 9-Stabilizing clamp; 10-Clamping rod; 11-Slot; 12-Connecting cylinder; 13-Semi-circular retaining ring; 14-Ring groove; 15-Main cover; 16-Threaded screw; 19-High-pressure cleaning pipe; 20-Flow regulating valve; 21-Exhaust pipe. 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 5 As shown, this utility model is a graphene filtration membrane device for filtering wastewater. Specifically, the graphene filtration membrane device includes an outer cylinder 1, with an upper cover 2 sealed to the top and a lower cover 3 sealed to the bottom. A mounting base 4 is fixedly disposed on the inner wall of the outer cylinder 1, and a cylindrical graphene filtration membrane 5 is sealed to the top surface of the mounting base 4 via a stabilizing clamp 9. More specifically, the stabilizing clamp 9 consists of multiple pairs of clamping rods 10 arranged in a circumferential array along the edge of the top surface of the mounting base 4 (e.g., ...). Figure 5 As shown, preferably four pairs are provided. The inner and outer surfaces of the graphene filter membrane 5 form slots 11 corresponding to the clamping rods 10. By inserting the clamping rods 10 into the slots 11, the graphene filter membrane 5 is firmly fixed, and its lower end face is pressed against the top surface of the mounting substrate 4 to achieve a sealed connection. Of course, it is easy to know that the lower end face of the graphene filter membrane 5 and the top surface of the mounting substrate 4 are made of materials that can be made in contact to achieve a seal, so as to ensure that they are pressed against each other to achieve a sealed connection and prevent sewage from leaking from the connection point and failing to achieve the filtration effect.

[0024] In a further optimized configuration, the top of the graphene filter membrane 5 is sealed to the connecting cylinder 12 inside the upper cover 2 via a semi-circular retaining ring 13 and annular groove 14. Figure 3As shown, a semi-circular retaining ring 13 is formed on the bottom end face of the connecting cylinder 12, and an annular groove 14 is formed on the top end face of the graphene filter membrane 5. The upper cover 2 includes a main cover 15 and a threaded screw body 16. The threaded screw body 16 is screwed and fixed to the outer surface of the top of the outer cylinder 1 by threads (the specific structure of the threads is not shown in the attached figure, but it is easy to see). Figure 4 The diagram shows the state in which the threaded body 16 is connected to the outer cylinder 1 via threads, as shown. Figure 3 The main cover 15 and the threaded body 16 are rotatably connected by a convex ring and a groove, which restricts axial movement and allows the threaded body 16 to rotate only relative to the main cover 15. This design makes the connection between the upper cover 2 and the outer cylinder 1 more stable, while also facilitating disassembly, maintenance, or cleaning.

[0025] More specifically, a wastewater inlet pipe 6 is installed on the upper cover 2. One end of the wastewater inlet pipe 6 is connected to a wastewater source via a switch valve 7, and the other end extends into the inner cavity of the graphene filter membrane 5. Further optimized, the wastewater to be filtered is injected into the inner cavity of the graphene filter membrane 5 through the wastewater inlet pipe 6, and the filtered clean water is discharged from the clean water outlet 8 of the lower cover 3, as detailed below. Figure 4 As shown.

[0026] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the specific structure of the stabilizing clamp 9 further optimizes the fixing effect of the graphene filter membrane. Multiple pairs of clamping rods 10 are evenly distributed on the top edge of the mounting substrate 4. The cooperation between the slot part 11 and the clamping rods 10 not only realizes the rapid installation of the graphene filter membrane 5, but also ensures its stability under high pressure working environment, that is, stabilizes the position of the graphene filter membrane 5 so that it will not over-expand under high pressure working environment, thereby ensuring the filtration speed (maintaining high pressure helps water molecules in wastewater to permeate).

[0027] After filtration, the graphene filter membrane 5 needs to be cleaned. Therefore, further improvements to this invention are required, specifically as follows: Figure 4 As shown, two sets of high-pressure cleaning pipes 19 are symmetrically arranged on the outer cylinder 1. One end of each high-pressure cleaning pipe 19 is connected to the cavity of the outer cylinder 1, and the other end is connected to a gas source through a flow regulating valve 20. An exhaust pipe 21 is provided on the upper cover 2, and a gas valve is connected to the exhaust pipe 21. When cleaning the graphene filter membrane 5 is required, the flow regulating valve 20 and the gas valve are opened. High-pressure gas from the outside enters the cavity of the outer cylinder 1 through the high-pressure cleaning pipe 19, and then enters the cavity of the graphene filter membrane 5 from the outside, performing high-pressure rinsing (high-pressure gas flows from the outside to the inside of the micropores inherent in the graphene filter membrane 5 to achieve cleaning). Most of the dirt and blockages are discharged through the exhaust pipe 21 with the high-pressure airflow. This significantly improves cleaning efficiency and further extends the service life of the filter membrane.

[0028] When using the device, the operator first fixes the graphene filter membrane 5 to the mounting base 4 using the stabilizing clamp 9, and then tightens the upper cover 2 to the outer cylinder 1. The switch valve 7 is opened, and wastewater enters the inner cavity of the graphene filter membrane 5 through the wastewater inlet pipe 6 for filtration. When cleaning is required after use, the switch valve 7 is closed, and the air valves of the high-pressure cleaning pipe 19 and the exhaust pipe 21 are opened. High-pressure gas is continuously introduced through the high-pressure cleaning pipe 19 to complete the cleaning, removing dirt adhering to the micropores of the graphene filter membrane 5 during filtration.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A graphene filtration membrane device, comprising an outer cylinder (1), characterized in that: The top of the outer cylinder (1) is sealed with an upper cover (2), and the bottom of the outer cylinder (1) is sealed with a lower cover (3). An installation base plate (4) is fixedly installed on the inner wall of the outer cylinder (1). A cylindrical graphene filter membrane (5) is sealed on the top surface of the installation base plate (4). The end of the graphene filter membrane (5) away from the installation base plate (4) is sealed with the interior of the upper cover (2). The upper cover (2) is equipped with a sewage inlet pipe (6). One end of the sewage inlet pipe (6) is connected to the sewage source through a switch valve (7), and the other end extends to the inner cavity of the graphene filter membrane (5) for injecting the sewage to be filtered into the inner cavity of the graphene filter membrane (5). The lower end of the lower cover (3) forms a clean water outlet (8). The clean water obtained by filtering through the graphene filter membrane (5) is discharged and collected through the clean water outlet (8).

2. The graphene filtration membrane device according to claim 1, characterized in that: The graphene filter membrane (5) is sealed to the top surface of the mounting substrate (4) by a stabilizing clamp (9). The stabilizing clamp (9) is a series of clamping rods (10) arranged in a circumferential array on the edge of the top surface of the mounting substrate (4). The graphene filter membrane (5) forms a slot (11) corresponding to the clamping rod (10). The connection is achieved by inserting the multiple clamping rods (10) into the slot (11) respectively. When the graphene filter membrane (5) with one end sealed to the inside of the upper cover (2) is fixedly installed on the outer cylinder (1) by the upper cover (2), the lower end face of the graphene filter membrane (5) will be pressed against the top surface of the mounting substrate (4) to achieve a sealed connection.

3. The graphene filtration membrane device according to claim 2, characterized in that: The upper cover (2) and the outer cylinder (1) are independently set and are connected and fixed to each other by screwing. The inner wall of the upper cover (2) forms a connecting cylinder (12), and the lower end face of the connecting cylinder (12) forms a semi-circular retaining ring (13). The top surface of the graphene filter membrane (5) forms an annular groove (14) corresponding to the semi-circular retaining ring (13). The semi-circular retaining ring (13) is inserted and tightened into the annular groove (14) to achieve a sealed connection between the end of the graphene filter membrane (5) away from the mounting substrate (4) and the interior of the upper cover (2).

4. The graphene filtration membrane device according to claim 3, characterized in that: The upper cover (2) includes a main cover (15) and a threaded screw body (16). The threaded screw body (16) is rotatably connected to the lower end of the main cover (15). The inner ring surface of the threaded screw body (16) forms a thread, and the outer ring surface at the top of the outer cylinder (1) forms a corresponding thread. The threaded screw body (16) is screwed into the outer cylinder (1) to achieve mutual connection and fixation.

5. The graphene filtration membrane device according to claim 1, characterized in that: The outer cylinder (1) is provided with a high-pressure cleaning pipe (19). One end of the high-pressure cleaning pipe (19) is connected to the cavity of the outer cylinder (1), and the other end is connected to the gas source through the flow regulating valve (20). The upper cover (2) is provided with an exhaust pipe (21) connected to the inner cavity of the graphene filter membrane (5). An air valve is connected in the exhaust pipe. When the graphene filter membrane (5) needs to be cleaned, the flow regulating valve (20) and the air valve are opened so that the high-pressure cleaning pipe (19) continuously flows in to flush the graphene filter membrane (5) under high pressure to achieve cleaning.

6. The graphene filtration membrane device according to claim 5, characterized in that: The high-pressure cleaning pipe (19) has two sets, and the two sets of high-pressure cleaning pipe (19) are symmetrically arranged in the outer cylinder (1).

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