Antibacterial ultrafiltration membrane assembly

Abstract

The utility model discloses an antibacterial ultrafiltration membrane component which comprises a cylinder body with a closed end, a drainage pipe is fixedly arranged in the cylinder body, one end of the drainage pipe penetrates through the closed end of the cylinder body, and through holes which are uniformly distributed are formed in the outer circumference of the drainage pipe; the outer side of the drainage pipe is slidably sleeved with an ultrafiltration membrane main body, and the interior of the ultrafiltration membrane main body is fixedly connected with a nano antibacterial layer; the opposite side of the closed end of the barrel is in threaded connection with a sealing cover, and an extrusion part is installed on the inner side of the sealing cover. A pressure reaction part is slidably arranged between the outer side of the extrusion part and the cylinder body; a water inlet connector is fixedly inserted into the end, close to the sealing cover, of the barrel. According to the embodiment, the ultrafiltration membrane main body can be extruded through the extrusion part after the sealing cover is mounted, so that the mounting stability of the ultrafiltration membrane main body is improved. And the pressure reaction piece can adaptively adjust the filtering space according to the change of the water pressure, so that the water pressure in the barrel is stabilized, and the filtering effect of the assembly is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrafiltration membranes, in particular to an antibacterial ultrafiltration membrane component. Background Art

[0002] Ultrafiltration membranes are widely used in industry and have become one of the new chemical unit operations. They are used for separation, concentration and purification of biological products, pharmaceutical products and food industry. They are also used in terminal treatment devices for blood treatment, wastewater treatment and ultrapure water preparation. Ultrafiltration is a process in which the solvent and some low molecular weight solutes pass through the micropores on the membrane to reach the other side of the membrane under pressure, while the high molecular weight solutes or other emulsified micelles are retained to achieve the purpose of separation from the solution. Its separation mechanism mainly relies on physical screening. During ultrafiltration separation, after applying a certain pressure to the feed liquid, high molecular weight substances and colloidal substances are blocked and retained in the pores due to primary adsorption on the membrane surface and micropores, and mechanical screening effect on the membrane surface. The ultrafiltration membrane blocks water and low molecular weight substances through the membrane.

[0003] However, the fixed internal structure of current modules makes it difficult to replace the ultrafiltration membrane core. Ultrafiltration membranes require a certain pressure to filter water properly, so when the internal water pressure fluctuates and changes, it is easy to cause insufficient filtration pressure in the membrane core, resulting in poor filtration effect and instability. Utility Model Content

[0004] The content of this disclosure is intended to briefly introduce concepts that will be described in detail in the detailed description section below. The content of this disclosure is not intended to identify key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0005] The utility model provides an antibacterial ultrafiltration membrane component to solve the technical problems mentioned in the above background technology part.

[0006] The antibacterial ultrafiltration membrane assembly of the utility model comprises a cylinder with a closed end, characterized in that a drain pipe is fixedly provided inside the cylinder, one end of the drain pipe passes through the closed end of the cylinder, and the outer circumference of the drain pipe is provided with evenly distributed through holes;

[0007] An ultrafiltration membrane body is slidably mounted on the outside of the drain pipe, and a nano-antibacterial layer is fixedly connected to the inside of the ultrafiltration membrane body;

[0008] A sealing cap is threadedly connected to the opposite side of the closed end of the cylinder, and an extrusion piece is installed on the inner side of the sealing cap, which is used to extrude and position the ultrafiltration membrane body; a pressure response piece is slidably provided between the outer side of the extrusion piece and the cylinder, which is used to adjust the filtration space according to the water pressure; a water inlet joint is fixedly inserted into the end of the cylinder close to the sealing cap.

[0009] Optionally, the extrusion member includes a positioning cylinder, a first spring and a guide rod, one end of the positioning cylinder is fixedly connected to the cover, one end of the first spring is fixedly connected to the interior of the positioning cylinder, the other end of the first spring is fixedly connected to the guide rod, the other end of the guide rod passes through the outside of the positioning cylinder and is slidably connected to the positioning cylinder, and the other end of the guide rod is also engaged with the ultrafiltration membrane body.

[0010] Optionally, a pressure plate is further provided at the other end of the guide rod, and the pressure plate is engaged with an end of the ultrafiltration membrane body close to the cover.

[0011] Optionally, the pressure response part includes a sliding disk and a second spring, and the sliding disk can be slidably mounted on the outside of the positioning cylinder; the second spring is mounted on the outside of the positioning cylinder; one end of the second spring is fixedly connected to the cover, and the other end of the second spring is fixedly connected to the sliding disk.

[0012] Optionally, the pressure reaction member further includes a sliding sealing ring, which is sleeved on the outer side of the sliding disk.

[0013] Optionally, an annular groove is provided on the inner wall of the cylinder, and the sliding sealing ring is slidably connected to the annular groove.

[0014] Optionally, the water inlet connector is located on a side of the sliding plate away from the sealing cover.

[0015] Optionally, the outer side of the ultrafiltration membrane body is fixedly connected with equidistantly arranged separation bars.

[0016] Optionally, the outer side of the dividing strip is in sliding contact with the inner side of the cylinder.

[0017] Optionally, a sealing gasket is fixedly connected to the closed end of the cylinder, and the ultrafiltration membrane body is in compression contact with the sealing gasket.

[0018] The above embodiment of the utility model has the following beneficial effects: the extrusion member can squeeze the ultrafiltration membrane body after the cover is installed, thereby improving the stability of the ultrafiltration membrane body installation. The threaded connection between the end cap and the cylinder also facilitates the replacement and maintenance of the ultrafiltration membrane body.

[0019] The pressure response element can adaptively adjust the filter space according to the change of water pressure, thereby stabilizing the water pressure in the cylinder through the change of the filter space, thereby ensuring the stability of the filtration of the component. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a schematic front cross-sectional view of an embodiment of an antibacterial ultrafiltration membrane assembly of the present invention;

[0022] Figure 2 for Figure 1 A magnified schematic diagram of point A in the middle;

[0023] Figure 3 This is a schematic side cross-sectional structural diagram of an embodiment of the antibacterial ultrafiltration membrane assembly of the present invention;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the ultrafiltration membrane body of the present utility model.

[0025] Description of reference numerals:

[0026] 1. Cylinder body; 11. Annular groove; 2. Drain pipe; 3. Through hole; 4. Ultrafiltration membrane body; 41. Separator strip; 5. Sealing cover; 6. Extrusion piece; 61. Positioning cylinder; 62. First spring; 63. Guide rod; 64. Pressure plate; 7. Sealing gasket; 8. Pressure response piece; 81. Sliding plate; 82. Sliding sealing ring; 83. Second spring; 9. Water inlet joint; 10. Nano-antibacterial layer. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0030] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0031] See also Figure 1 , Figure 1 This is a schematic diagram of the front cross-sectional structure of an embodiment of the antibacterial ultrafiltration membrane assembly of the present invention. Figure 1 As shown, the antibacterial ultrafiltration membrane assembly includes one end ( Figure 1 The left end of the cylinder 1 is closed, and a drain pipe 2 is fixedly connected to the inside of the cylinder 1. The left end of the drain pipe 2 passes through the closed end of the cylinder 1 and is fixedly connected thereto. The outer circumference of the drain pipe 2 is provided with evenly distributed through holes 3. The inside of the cylinder 1 is plugged with an ultrafiltration membrane body 4, and the inside of the ultrafiltration membrane body 4 is fixedly connected with a nano antibacterial layer 10. The ultrafiltration membrane body 4 is connected to the right side of the drain pipe 2 ( Figure 1 The left end of the ultrafiltration membrane body 4 is slidably mounted on the inner portion of the closed end of the cylinder 1.

[0032] Furthermore, a sealing gasket 7 is fixedly connected to the closed end of the cylinder 1, and the left end of the ultrafiltration membrane body 4 ( Figure 1 direction in the middle) and is in press contact with the sealing gasket 7.

[0033] The right side of the cylinder 1 ( Figure 1 The sealing cover 5 is threadedly connected to the cylinder 1 (in the direction of the center), and an extrusion piece 6 is installed on the inner side of the sealing cover 5. The extrusion piece 6 squeezes and positions the right end of the ultrafiltration membrane body 4. A pressure reaction piece 8 is installed between the outer side of the extrusion piece 6 and the cylinder 1, and a water inlet connector 9 is fixedly inserted at the end of the cylinder 1 close to the sealing cover 5.

[0034] When in use, the pressurized water source is connected through the water inlet connector 9, the water flows through the ultrafiltration membrane body 4 and achieves a bactericidal and antibacterial effect in the nano antibacterial layer 10, and the filtered water flows through the through hole 3 into the drain pipe 2, and is discharged from the left end of the drain pipe 2 ( Figure 1 If the water pressure suddenly drops, the pressure-responsive element 8 compresses the filtration space to the left, maintaining the filtration pressure. If the water pressure increases, it pushes the pressure-responsive element 8 to the right, expanding the filtration space. This allows the assembly to adaptively adjust to pressure fluctuations and ensure effective filtration.

[0035] When the ultrafiltration membrane body 4 needs to be replaced, simply unscrew the cover 5, remove the extrusion 6, and then remove the ultrafiltration membrane body 4 and replace it with a new one. Finally, screw on the cover 5 to re-press the extrusion 6 against the ultrafiltration membrane body 4. This makes replacement convenient and flexible, and ensures excellent installation stability. It also solves the problem of insufficient filtration pressure in the membrane core caused by internal water pressure fluctuations, resulting in poor filtration effect and poor stability.

[0036] See also Figure 2 And continue to read Figure 1 , Figure 2 for Figure 1 The enlarged schematic diagram of point A in the figure. Figure 1 and Figure 2 As shown, the extrusion member 6 includes a positioning cylinder 61, a first spring 62, a guide rod 63 and a pressure plate 64. The right end of the positioning cylinder 61 ( Figure 2 The right end of the first spring 62 ( Figure 2 The left end of the first spring 62 ( Figure 2 The left end of the guide rod 63 ( Figure 2 The left end of the guide rod 63 is fixedly connected to the pressure plate 64. The left side of the pressure plate 64 ( Figure 2 direction in the middle) contacts and squeezes the right end of the ultrafiltration membrane body 4.

[0037] In the assembled state, the first spring 62 inside the positioning cylinder 61 compresses the guide rod 63 so that the pressure plate 64 maintains pressure on the ultrafiltration membrane body 4, making the installation stable.

[0038] Continue reading Figure 1 and Figure 2 The pressure reaction member 8 includes a sliding plate 81, a sliding sealing ring 82 and a second spring 83. The inner portion of the sliding plate 81 is slidably connected to the outer side of the positioning cylinder 61, the sliding sealing ring 82 is fixedly sleeved on the outer side of the sliding plate 81, and the second spring 83 is sleeved on the outer side of the positioning cylinder 61. The right end of the second spring 83 ( Figure 2 The left end of the second spring 83 ( Figure 2 direction in the middle) is fixedly connected to the sliding plate 81.

[0039] Furthermore, an annular groove may be provided on the inner wall of the cylinder 1 , and the sliding sealing ring 82 is slidably connected to the annular groove 11 .

[0040] When the water pressure in the cylinder 1 decreases, the second spring 83 extends, and the sliding disc 81 drives the sliding sealing ring 82 to slide to the left along the annular groove 11, thereby reducing the size of the filter space on the left side of the sliding disc 81, and then increasing the pressure in the filter space, thereby ensuring the stability of the component filtration.

[0041] When the water pressure in the cylinder 1 increases, the second spring 83 contracts, and the sliding disc 81 will drive the sliding sealing ring 82 to slide to the right along the annular groove 11, thereby increasing the size of the filter space on the left side of the sliding disc 81, and then stabilizing the pressure in the filter space, thereby ensuring the stability of the filtration of the component.

[0042] The water inlet connector 9 is located on the left side of the sliding plate 81, which can make the sliding plate 81 more susceptible to changes in the pressure of the incoming water flow and more sensitive to the reaction.

[0043] See last Figure 3 and Figure 4 , Figure 3 This is a schematic side cross-sectional structural diagram of an embodiment of the antibacterial ultrafiltration membrane assembly of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the ultrafiltration membrane body of the present utility model. Figure 3 and Figure 4 As shown, the outer side of the ultrafiltration membrane body 4 is fixedly connected to equidistantly arranged separator bars 41, and the outer side of the separator bars 41 is in sliding contact with the inner side of the cylinder 1. This facilitates the installation and removal of the ultrafiltration membrane body 4 and prevents the ultrafiltration membrane body 4 from being damaged by friction with the inner cylinder 11.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An antibacterial ultrafiltration membrane assembly, comprising a cylinder (1) provided with a closed end, characterized in that: A drainage pipe (2) is fixedly provided inside the cylinder (1), one end of the drainage pipe (2) passes through the closed end of the cylinder (1), and the outer circumference of the drainage pipe (2) is provided with evenly distributed through holes (3); An ultrafiltration membrane body (4) is slidably mounted on the outside of the drainage pipe (2), and a nano-antibacterial layer (10) is fixedly connected to the inside of the ultrafiltration membrane body (4); A sealing cap (5) is threadedly connected to the opposite side of the closed end of the cylinder (1), and an extrusion member (6) is installed on the inner side of the sealing cap (5), and the extrusion member (6) is used to extrude and position the ultrafiltration membrane body (4); a pressure reaction member (8) is slidably provided between the outer side of the extrusion member (6) and the cylinder (1), and is used to adjust the filtration space according to the water pressure; and a water inlet joint (9) is fixedly inserted at one end of the cylinder (1) close to the sealing cap (5).

2. The antibacterial ultrafiltration membrane assembly according to claim 1, characterized in that: The extrusion member (6) includes a positioning cylinder (61), a first spring (62) and a guide rod (63), one end of the positioning cylinder (61) is fixedly connected to the cover (5), one end of the first spring (62) is fixedly connected to the interior of the positioning cylinder (61), the other end of the first spring (62) is fixedly connected to the guide rod (63), the other end of the guide rod (63) passes through the outside of the positioning cylinder (61) and is slidably connected to the positioning cylinder (61), and the other end of the guide rod (63) is also engaged with the ultrafiltration membrane body (4).

3. The antibacterial ultrafiltration membrane assembly according to claim 2, characterized in that: A pressure plate (64) is further provided at the other end of the guide rod (63), and the pressure plate (64) is engaged with one end of the ultrafiltration membrane body (4) close to the sealing cover (5).

4. The antibacterial ultrafiltration membrane assembly according to claim 2, characterized in that: The pressure reaction member (8) includes a sliding disk (81) and a second spring (83), wherein the sliding disk (81) can be slidably mounted on the outside of the positioning cylinder (61); the second spring (83) is mounted on the outside of the positioning cylinder (61); one end of the second spring (83) is fixedly connected to the sealing cover (5), and the other end of the second spring (83) is fixedly connected to the sliding disk (81).

5. The antibacterial ultrafiltration membrane assembly according to claim 4, characterized in that: The pressure reaction member (8) further comprises a sliding sealing ring (82), and the sliding sealing ring (82) is sleeved on the outer side of the sliding disk (81).

6. The antibacterial ultrafiltration membrane assembly according to claim 5, characterized in that: An annular groove (11) is provided on the inner wall of the cylinder (1), and the sliding sealing ring (82) is slidably connected to the annular groove (11).

7. The antibacterial ultrafiltration membrane assembly according to claim 5, characterized in that: The water inlet joint (9) is located on a side of the sliding plate (81) away from the sealing cover (5).

8. The antibacterial ultrafiltration membrane assembly according to claim 1, characterized in that: The outer side of the ultrafiltration membrane body (4) is fixedly connected with equidistantly arranged separation bars (41).

9. The antibacterial ultrafiltration membrane assembly according to claim 8, characterized in that: The outer side of the partition bar (41) is in sliding contact with the inner side of the cylinder (1).

10. The antibacterial ultrafiltration membrane assembly according to claim 1, characterized in that: A sealing gasket (7) is fixedly connected to the closed end of the cylinder (1), and the ultrafiltration membrane body (4) is in extrusion contact with the sealing gasket (7).

Images