Melt-blown filter element convenient to maintain

Abstract

The utility model belongs to the technical field of melt-blown filter elements, and particularly relates to a melt-blown filter element convenient to maintain, which comprises a filter framework, a butt joint end is integrally connected to the top end of the filter framework, a filter casing is arranged outside the filter framework, a top cover is arranged at the top end of the filter casing, and a water inlet pipe and a water outlet pipe are connected to the top of the top cover. According to the utility model, the arc-shaped block and the arc-shaped groove are clamped, the first butt-joint block and the second butt-joint block are in butt joint, and then the butt joint of the first butt-joint block and the second butt-joint block is in threaded fit with the fixing sleeve, so that the filter casing and the top cover can be firmly fixed. By adopting the mode, the filter casing and the top cover can be easily disassembled and assembled only by rotating the fixing sleeve, so that the tedious operation and time consumption caused by fixing by using a plurality of groups of bolts and nuts are greatly reduced, and the problem that the retention time of the melt-blown filter element in the filter casing and the top cover is prolonged due to difficulty in disassembly and assembly when the melt-blown filter element is replaced and maintained is avoided; therefore, great convenience is provided for replacement and maintenance of the melt-blown filter element.

Description

Technical Field

[0001] This utility model belongs to the field of meltblown filter technology, specifically relating to a meltblown filter that is easy to maintain. Background Technology

[0002] Meltblown filter cartridges are made from non-toxic and odorless polypropylene particles, processed through heating, melting, spinning, drawing, and forming into tubular filter cartridges. If the main raw material is polypropylene, it can be called a PP meltblown filter cartridge. This type of filter cartridge is widely used in water purification and also possesses excellent chemical compatibility, making it suitable for filtering strong acids, strong alkalis, and organic solvents. It has a high dirt-holding capacity, long service life, and low cost.

[0003] When using meltblown filter cartridges, a filter cartridge cover is typically installed on the outside. A top cover is mounted on the top side of the cover, and the top cover has inlet and outlet pipes. Wastewater is transported into the filter cartridge cover through the inlet pipe, filtered by the meltblown filter cartridge, and then discharged through the outlet pipe, thus achieving wastewater filtration. However, in actual use, the filtration efficiency of meltblown filter cartridges will gradually decrease after 3-6 months of continuous use. At this time, to ensure the stable operation of the filtration system, it is recommended to replace the meltblown filter cartridge.

[0004] The problem is that the filter element cover and the top cover are mostly connected by multiple sets of bolts and nuts. Although this connection method can play a role in fixing the filter element, it makes the disassembly and assembly process very cumbersome and time-consuming when maintaining and replacing the meltblown filter element. This cumbersome and time-consuming process is caused by disassembling and assembling multiple sets of bolts and nuts. The meltblown filter element needs to be removed from the inside of the filter element cover by disassembling and assembling the bolts and nuts one by one, which increases the difficulty of maintenance and time cost. Utility Model Content

[0005] The purpose of this invention is to provide a meltblown filter element that is easy to maintain, addressing the problem that existing technologies often use multiple sets of bolts and nuts to connect the filter element cover and top cover. While this connection method provides a secure connection, it makes the disassembly and assembly process extremely cumbersome and time-consuming during maintenance and replacement of the meltblown filter element. This cumbersome and time-consuming process is caused by the need to disassemble and assemble multiple sets of bolts and nuts sequentially to remove the meltblown filter element from inside the filter element cover, thus increasing the difficulty of maintenance and time costs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a meltblown filter element that is easy to maintain, comprising a filter frame, a butt joint integrally connected to the top of the filter frame, a filter cover provided on the outside of the filter frame, a top cover provided on the top of the filter cover, an inlet pipe and an outlet pipe connected to the top of the top cover, a sealing ring installed at the connection between the filter cover and the top cover, a first butt joint block connected to the outer wall of the top cover, a second butt joint block connected to the outer wall of the filter cover, an arc-shaped groove provided at the top of the second butt joint block, an arc-shaped block integrally connected to the bottom of the first butt joint block, and a fixing sleeve connected to the connection between the first butt joint block and the second butt joint block.

[0007] As a preferred embodiment of the present invention for easy maintenance of meltblown filter element, the outer wall of the arc-shaped block is threaded, and the outer wall of the second mating block is threaded, wherein the thread on the outer wall of the arc-shaped block is the same as the thread on the outer wall of the second mating block.

[0008] As a preferred embodiment of the present invention for easy maintenance of meltblown filter element, the inner wall of the fixing sleeve is provided with threads, and the fixing sleeve is threadedly connected to the first mating block and the second mating block respectively.

[0009] As a preferred embodiment of this utility model of an easy-to-maintain meltblown filter element, the dimensions of the arc-shaped block and the arc-shaped groove are matched.

[0010] As a preferred embodiment of the present invention for easy maintenance of meltblown filter element, the filter cover is provided with a support plate inside, the bottom end of the support plate is connected to an mounting block, the bottom end of the filter cover is connected to a threaded rod, the inner wall of the filter cover is connected to a rectangular guide block, and the surface of the support plate is provided with a groove that matches the rectangular guide block.

[0011] As a preferred embodiment of this utility model of a meltblown filter element that is easy to maintain, the threaded rod is rotatably connected inside the mounting block.

[0012] As a preferred embodiment of the present invention for easy maintenance of meltblown filter element, the support plate can be connected to the filter cover by a rectangular guide block in a threaded lifting connection.

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

[0014] By engaging the arc-shaped block and the arc-shaped groove, and then engaging the first and second mating blocks, followed by threaded engagement between the first and second mating blocks and the fixing sleeve, the filter cover and top cover can be securely fixed. Using this method, the filter cover and top cover can be easily disassembled and assembled simply by rotating the fixing sleeve, greatly reducing the cumbersome operations and time-consuming process of using multiple sets of bolts and nuts. This also avoids prolonged residence time of the meltblown filter element inside the filter cover and top cover due to difficulties in disassembly and assembly during replacement and maintenance, thus providing great convenience for the replacement and maintenance of the meltblown filter element.

[0015] Through the coordinated action of the support plate, threaded rod, rectangular guide block, groove, and mounting block, the position of the support plate can be flexibly adjusted to ensure it fits snugly against the bottom of the meltblown filter element. This then allows the meltblown filter element to be stably fixed inside the filter cover and top cover. This design effectively improves the stability of the meltblown filter element during use, preventing instability and separation from the top cover under water flow impact, further ensuring the normal operation of the filtration system. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the main body of this utility model;

[0019] Figure 3 This is a schematic diagram of the main body of this utility model from a bottom view.

[0020] Figure 4 This is a schematic diagram of the connection structure of the first docking block, the second docking block, and the fixing sleeve of this utility model;

[0021] Figure 5 This utility model Figure 3 A magnified structural diagram at point A in the diagram.

[0022] In the diagram: 1. Filter frame; 2. Connecting end; 3. Top cover; 4. Filter cover; 5. Inlet pipe; 6. Outlet pipe; 7. Sealing ring; 8. First connecting block; 9. Second connecting block; 10. Fixing sleeve; 11. Support plate; 12. Threaded rod; 13. Rectangular guide block; 14. Groove; 15. Mounting block; 16. Arc block; 17. Arc groove. 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] Please see Figures 1-5This utility model provides the following technical solution: a meltblown filter element that is easy to maintain, comprising a filter frame 1, a mating end 2 integrally connected to the top of the filter frame 1, a filter cover 4 disposed on the outside of the filter frame 1, a top cover 3 disposed on the top of the filter cover 4, an inlet pipe 5 and an outlet pipe 6 connected to the top of the top cover 3, a sealing ring 7 installed at the connection between the filter cover 4 and the top cover 3, a first mating block 8 connected to the outer wall of the top cover 3, a second mating block 9 connected to the outer wall of the filter cover 4, and an arc-shaped opening at the top of the second mating block 9. The bottom end of the first docking block 8 is integrally connected to the groove 17. A fixing sleeve 10 is connected at the connection between the first docking block 8 and the second docking block 9. The outer wall of the arc-shaped block 16 is threaded, and the outer wall of the second docking block 9 is threaded. The threads on the outer wall of the arc-shaped block 16 are the same as those on the outer wall of the second docking block 9. The inner wall of the fixing sleeve 10 is threaded. The fixing sleeve 10 is threaded to the first docking block 8 and the second docking block 9 respectively. The dimensions of the arc-shaped block 16 and the arc-shaped groove 17 are compatible.

[0025] In practical use, firstly, a meltblown nonwoven fabric is connected inside the filter frame 1. This meltblown nonwoven fabric is made of polymer materials such as polypropylene (PP) through a meltblown process. During the meltblowing process, the polymer melt is squeezed through the small holes of the nozzle, forming extremely fine fibers. These fibers interweave randomly to form a nonwoven fabric with a three-dimensional network structure. This structure has characteristics such as small pore size, high porosity, and large specific surface area, which can effectively intercept and adsorb various impurities in the water, such as suspended solids, colloids, and bacteria. This is how the meltblown filter element is formed.

[0026] The mating end 2 of the filter frame 1 is aligned with the mating interface of the top cover 3. Then, the inlet pipe 5 and outlet pipe 6 on the top cover 3 are connected to the water pipe. Next, the top cover 3 is inserted into the filter cover 4. At this point, the sealing ring 7 seals the connection between the filter cover 4 and the top cover 3, ensuring a tight seal. Afterward, wastewater enters through the inlet pipe 5, is filtered by the melt-blown filter element, and is discharged through the outlet pipe 6, thus achieving wastewater filtration.

[0027] However, after 3-6 months of continuous use, the filtration efficiency of the meltblown filter element will gradually decrease, at which point it needs to be replaced and maintained. The operator rotates the fixing sleeve 10 to lower it, causing it to move and separate from the first mating block 8 and the second mating block 9, thus releasing the first mating block 8 and the second mating block 9 from their fixed state by the fixing sleeve 10. Next, the filter cover 4 and the top cover 3 are released from their fixed state, and the operator pulls the filter cover 4 downwards to separate it from the top cover 3, exposing the meltblown filter element. Subsequently, the operator pulls the meltblown filter element downwards to separate the mating end 2 from the interface of the top cover 3, allowing the meltblown filter element to be removed. This design greatly reduces the cumbersome operation and time-consuming process of using multiple sets of bolts and nuts for fixing, and avoids prolonging the time the meltblown filter element remains inside the filter cover 4 and the top cover 3 due to difficulties in disassembly and assembly during replacement and maintenance, providing great convenience for the replacement and maintenance of the meltblown filter element.

[0028] Preferably, a support plate 11 is provided inside the filter cover 4, and a mounting block 15 is connected to the bottom end of the support plate 11. A threaded rod 12 is connected to the bottom end of the filter cover 4, and a rectangular guide block 13 is connected to the inner wall of the filter cover 4. A groove 14 adapted to the rectangular guide block 13 is provided through the surface of the support plate 11. The threaded rod 12 is rotatably connected inside the mounting block 15. The support plate 11 can form a threaded lifting connection with the filter cover 4 through the rectangular guide block 13.

[0029] In practical use, after replacing the meltblown filter element, the operator rotates the threaded rod 12, causing it to move along the inside of the mounting block 15. As the threaded rod 12 rotates, it rises inside the filter cover 4, simultaneously driving the support plate 11 upwards. During this upward movement, the support plate 11 moves along the rectangular guide block 13, which prevents the support plate 11 from rotating with the threaded rod 12. When the support plate 11 reaches the appropriate position, it firmly abuts against the bottom of the meltblown filter element.

[0030] In this way, the meltblown filter element can be stably fixed inside the filter cover 4 and the top cover 3. This ingenious design significantly improves the stability of the meltblown filter element during use, effectively preventing the meltblown filter element from shaking or even separating from the top cover 3 under the impact of water flow, and further ensuring that the filtration system can operate normally and stably.

[0031] Working principle: When replacing or maintaining the meltblown filter element, the operator first rotates the fixing sleeve 10 to lower it. During the movement of the fixing sleeve 10, it separates from the first mating block 8 and the second mating block 9, thereby releasing the fixing state formed by the fixing sleeve 10. At this time, the fixing state of the filter cover 4 and the top cover 3 is also released. The operator then pulls the filter cover 4 down to separate it from the top cover 3, exposing the meltblown filter element. Subsequently, the operator pulls the meltblown filter element down to separate the mating end 2 from the interface of the top cover 3, thus easily removing the meltblown filter element. This design greatly reduces the cumbersome operation and time consumption when using multiple sets of bolts and nuts for fixing, and avoids prolonging the residence time of the meltblown filter element inside the filter cover 4 and the top cover 3 due to the difficulty of disassembly and assembly during the replacement and maintenance of the meltblown filter element, providing great convenience for the replacement and maintenance of the meltblown filter element. After the meltblown filter element is replaced, the operator rotates the threaded rod 12 to move it along the inside of the mounting block 15. As the threaded rod 12 rotates, it drives the support plate 11 to move upward inside the filter cover 4. During this upward movement, the support plate 11 moves along the rectangular guide block 13, which prevents the support plate 11 from rotating with the threaded rod 12. When the support plate 11 reaches the appropriate position, it firmly abuts against the bottom of the meltblown filter element. In this way, the meltblown filter element is stably fixed inside the filter cover 4 and the top cover 3. This ingenious design significantly improves the stability of the meltblown filter element during use, effectively preventing it from shaking or even separating from the top cover 3 under water flow impact, further ensuring the normal and stable operation of the filtration system.

[0032] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A meltblown filter element that is easy to maintain, comprising a filter frame (1), wherein a mating end (2) is integrally connected to the top of the filter frame (1), characterized in that: The filter frame (1) is provided with a filter cover (4) on the outside, and a top cover (3) is provided at the top of the filter cover (4). The top of the top cover (3) is connected to an inlet pipe (5) and an outlet pipe (6). A sealing ring (7) is installed at the connection between the filter cover (4) and the top cover (3). A first docking block (8) is connected to the outer wall of the top cover (3). A second docking block (9) is connected to the outer wall of the filter cover (4). An arc groove (17) is opened at the top of the second docking block (9). An arc block (16) is integrally connected to the bottom of the first docking block (8). A fixing sleeve (10) is connected at the connection between the first docking block (8) and the second docking block (9).

2. The easy-to-maintain meltblown filter element according to claim 1, characterized in that: The outer wall of the arc-shaped block (16) is threaded, and the outer wall of the second mating block (9) is threaded. The thread on the outer wall of the arc-shaped block (16) is the same as the thread on the outer wall of the second mating block (9).

3. The easy-to-maintain meltblown filter element according to claim 1, characterized in that: The inner wall of the fixed sleeve (10) is threaded, and the fixed sleeve (10) is threadedly connected to the first mating block (8) and the second mating block (9) respectively.

4. The easy-to-maintain meltblown filter element according to claim 1, characterized in that: The dimensions of the arc-shaped block (16) and the arc-shaped groove (17) are matched.

5. The easy-to-maintain meltblown filter element according to claim 1, characterized in that: The filter cover (4) is provided with a support plate (11) inside. The bottom end of the support plate (11) is connected to an mounting block (15). The bottom end of the filter cover (4) is connected to a threaded rod (12). The inner wall of the filter cover (4) is connected to a rectangular guide block (13). The surface of the support plate (11) is provided with a groove (14) that is adapted to the rectangular guide block (13).

6. The easy-to-maintain meltblown filter element according to claim 5, characterized in that: The threaded rod (12) is rotatably connected inside the mounting block (15).

7. The easy-to-maintain meltblown filter element according to claim 5, characterized in that: The support plate (11) can be connected to the filter cover (4) by a rectangular guide block (13) in a threaded lifting connection.

Images