A sealed drum-type solvent sterilization filter

Abstract

The utility model belongs to solvent filter technical field, specifically disclose a kind of sealed drum type solvent sterilization filter, including filter cartridge, the both ends of filter cartridge are respectively connected with first sealing cover and second sealing cover by screw thread, the inside rotation of first sealing cover is connected with rotating sleeve, the outer wall of rotating sleeve is fixedly connected with first connecting pipe, the outer wall of second sealing cover is fixedly connected with second connecting pipe and connecting port, the inside of connecting port is connected with pressure sensor by screw thread;Cleaning assembly, cleaning assembly is used to clean the solvent remaining in filter cartridge, cleaning assembly is connected with filter cartridge, second sealing cover and rotating sleeve. By setting cleaning assembly, the liquid that cannot be filtered due to excessive filtering resistance in filter core can be forced to filter and discharged through piston plate, to achieve the effect of forced cleaning of solvent in filter core, avoid solvent remaining in the inside of filter core.

Description

Technical Field

[0001] This utility model belongs to the field of solvent filter technology, and specifically relates to a sealed drum-type solvent sterilization filter. Background Technology

[0002] Solvent filters are commonly used equipment in chemical laboratories, mainly used for high-performance liquid chromatography mobile phase filtration, particulate matter analysis, and microbial contamination detection.

[0003] Existing solvent filters require replacement of their internal filter cartridges (disposable cartridges) after filtration of sufficient solvent, which become clogged. At this point, residual solvent remains inside the cartridge, unable to be filtered out due to the blockage. Opening the filter to empty the solvent causes it to carry away impurities from the cartridge surface, resulting in excessively contaminated solvent. When a new cartridge filters this contaminated solvent, it quickly becomes clogged, shortening the new cartridge's lifespan. Disposing of this contaminated solvent as waste is also problematic. Therefore, designing a sealed drum-type solvent sterilization filter is a key issue that needs to be addressed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a sealed drum-type solvent sterilization filter.

[0005] To achieve the above objectives, this utility model provides a sealed drum-type solvent sterilization filter, including a filter cartridge. A first sealing cap and a second sealing cap are threadedly connected to both ends of the filter cartridge. A rotating sleeve is rotatably connected inside the first sealing cap, and a first connecting pipe is fixedly connected to the outer wall of the rotating sleeve. A second connecting pipe and a connecting port are fixedly connected to the outer wall of the second sealing cap, and a pressure sensor is threadedly connected inside the connecting port. A cleaning assembly is also provided, used to clean residual solvent inside the filter cartridge. The cleaning assembly is connected to the filter cartridge, the second sealing cap, and the rotating sleeve.

[0006] In the above technical solution, the cleaning component further includes a support frame fixedly connected to the inner wall of the second sealing cover, the outer wall of the support frame abutting against a filter element, and the filter element being inserted into the inside of the filter cartridge.

[0007] In the above technical solution, a piston plate is further provided at the end of the filter element away from the support frame, and the outer contour of the piston plate matches the inner contour of the filter element.

[0008] In the above technical solution, a first connecting sleeve is fixedly connected to the side of the piston plate away from the filter element, and a threaded component is fixedly connected to the outer wall of the end of the first connecting sleeve away from the piston plate. The threaded component is threadedly connected to the inside of the rotating sleeve.

[0009] In the above technical solution, a second connecting sleeve is inserted inside the first connecting sleeve, a connecting rod is inserted inside the second connecting sleeve, and a first sliding groove and a second sliding groove are respectively opened inside the first connecting sleeve and the second connecting sleeve.

[0010] In the above technical solution, the outer walls of the second connecting sleeve and the connecting rod are respectively fixedly connected to a first slider and a second slider, the first slider is slidably connected inside the first groove, and the second slider is slidably connected inside the second groove.

[0011] Compared with the prior art, the present invention has the following beneficial effects: By incorporating a cleaning component, liquids that cannot be filtered due to excessive filtration resistance inside the filter element can be forcibly filtered and discharged through the piston plate. This achieves the effect of forcibly cleaning the solvent inside the filter element, preventing solvent residue from remaining inside the filter element and avoiding the situation where residual solvent carries impurities from the filter element surface and causes the new filter element to be quickly clogged by the impurities carried by these solvents when filtering these solvents, thus affecting the service life of the new filter element. This also avoids the situation where these solvents are discarded along with the filter element, resulting in solvent waste. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model; Figure 2 This is a cross-sectional view of the filter cartridge structure proposed in this utility model; Figure 3 This is a partial structural cross-sectional view of the cleaning component proposed in this utility model.

[0013] In the diagram: 1. Filter cartridge; 2. First sealing cover; 3. Second sealing cover; 4. Rotating sleeve; 5. First connecting pipe; 6. Second connecting pipe; 7. Connection port; 8. Pressure sensor; 9. Support frame; 10. Filter element; 11. Piston plate; 12. First connecting sleeve; 13. Threaded part; 14. Second connecting sleeve; 15. Connecting rod; 16. First slide groove; 17. Second slide groove; 18. First slider; 19. Second slider. Detailed Implementation

[0014] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] like Figures 1 to 2 The diagram shows a sealed drum-type solvent sterilization filter, comprising a filter cartridge 1. A first sealing cap 2 and a second sealing cap 3 are threadedly connected to both ends of the filter cartridge 1. A rotating sleeve 4 is rotatably connected inside the first sealing cap 2. The rotating sleeve 4 and the first sealing cap 2 are rotatably sealed, allowing a first connecting pipe 5 on the rotating sleeve 4 to rotate relative to the filter cartridge 1, thereby improving the flexibility of connecting the first connecting pipe 5 to the solvent inlet pipe. The first connecting pipe 5 is fixedly connected to the outer wall of the rotating sleeve 4, and a second connecting pipe 6 and a connection port 7 are fixedly connected to the outer wall of the second sealing cap 3. The first connecting pipe 5 is connected to the solvent inlet pipe, and the second connecting pipe 6 is connected to the solvent outlet pipe. A pressure sensor 8 is threadedly connected inside the connection port 7. The pressure sensor 8 allows operators to easily monitor the pressure inside the filter cartridge 1. If the pressure is too high, it indicates that the filter element 10 is clogged, and the resistance to solvent flow through the filter element 10 is too great, requiring replacement of the filter element 10. A cleaning component is also included, used to clean residual solvent inside the filter cartridge 1. The cleaning component is connected to the filter cartridge 1, the second sealing cap 3, and the rotating sleeve 4.

[0016] like Figures 2 to 3 As shown, the cleaning assembly includes a support frame 9 fixedly connected to the inner wall of the second sealing cover 3. A filter element 10 abuts against the outer wall of the support frame 9. The filter element 10 is inserted into the interior of the filter cartridge 1. A piston plate 11 is provided at the end of the filter element 10 away from the support frame 9. The outer contour of the piston plate 11 matches the inner contour of the filter element 10. A first connecting sleeve 12 is fixedly connected to the side of the piston plate 11 away from the filter element 10. A threaded component 13 is fixedly connected to the outer wall of the end of the first connecting sleeve 12 away from the piston plate 11. The threaded component 13 is threadedly connected to the interior of the rotating sleeve 4. A second connecting sleeve 14 is inserted inside the connecting sleeve 12, and a connecting rod 15 is inserted inside the second connecting sleeve 14. A first sliding groove 16 and a second sliding groove 17 are respectively opened inside the first connecting sleeve 12 and the second connecting sleeve 14. The first sliding groove 16 and the second sliding groove 17 are each composed of a straight segment and an arc segment. A first slider 18 and a second slider 19 are respectively fixedly connected to the outer walls of the second connecting sleeve 14 and the connecting rod 15. The first slider 18 is slidably connected inside the first sliding groove 16, and the second slider 19 is slidably connected inside the second sliding groove 17.

[0017] Working principle: When the filter element 10 inside the filter cartridge 1 is clogged to a certain extent by impurities, resulting in excessive resistance to solvent filtration, the operator can stop injecting solvent into the filter cartridge 1 and remove the solvent inlet pipe and solvent outlet pipe connected to the first connecting pipe 5 and the second connecting pipe 6. Then, a container is placed below the second connecting pipe 6, and the connecting rod 15 is pulled up, causing the connecting rod 15 to drive the second slider 19 to slide to the connection point of the straight section and the arc section of the second slide groove 17. As 115 continues to rise, the connecting rod 15 will drive the second connecting sleeve 14 to rise through the second slider 19 and the second slide groove 17, allowing the second connecting sleeve 14 to drive the first slider 18 to slide along the inside of the first slide groove 16 until the first slider 18 slides to the... The first slide groove 16 stops at the junction of the straight and curved sections. At this point, the operator can rotate the connecting rod 15, causing it to drive the second slider 19 into and slide to the end of the curved section of the second slide groove 17. As the connecting rod 15 continues to rotate, it drives the second connecting sleeve 14 to rotate via the second slider 19 and the second slide groove 17. This causes the second connecting sleeve 14 to drive the first slider 18 into and slide to the end of the curved section of the first slide groove 16. As the operator continues to rotate the connecting rod 15, the second connecting sleeve 14 begins to drive the first connecting sleeve 12 to rotate via the first slider 18 and the first slide groove 16. This causes the first connecting sleeve 12 to gradually separate the threaded component 13 from the threads inside the rotating sleeve 4. When the threaded component 13 separates from the threads inside the rotating sleeve 4... After the threads are separated, the operator can push the connecting rod 15 down, causing the connecting rod 15 to drive the second connecting sleeve 14 down via the second slider 19 and the second slide groove 17. The second connecting sleeve 14 then drives the first connecting sleeve 12 down via the first slider 18 and the first slide groove 16. This, in turn, causes the first connecting sleeve 12 to drive the piston plate 11 down into the filter element 10. This pressurizes the liquid remaining inside the filter element 10 due to excessive filtration resistance, forcing the residual liquid inside the filter element 10 to be filtered by the piston plate 11. The filtered solvent is then discharged into a container placed below the second connecting pipe 6, achieving the effect of forcibly cleaning the solvent inside the filter element 10 and forcibly removing the residual solvent. The solvent is filtered and discharged to prevent it from remaining inside the filter element 10. This prevents residual solvent from carrying impurities from the surface of the filter element 10 out with it, which could cause rapid clogging of the new filter element 10 when it filters these solvents, affecting its lifespan. This also avoids wasting solvent by discarding the filter element 10 along with it. It should be noted that after the operator forcibly filters and discharges the residual solvent, the above steps can be reversed to allow the cleaning component to shrink and reset, reducing its volume and thus the overall size of the filter. Then, the operator can remove the second sealing cover 3 from the filter cartridge 1 and remove the filter element 10 from inside the filter cartridge 1 for disposal.After replacing the filter element 10, the second sealing cover 3 is reconnected to the filter cartridge 1 via threads to achieve quick replacement of the filter element 10. Alternatively, the filter can be cleaned before replacing the filter element 10, depending on the situation.

[0018] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A sealed drum-type solvent sterilization filter, comprising a filter cartridge (1), characterized in that, The filter cartridge (1) is connected to a first sealing cap (2) and a second sealing cap (3) by threads at both ends. A rotating sleeve (4) is rotatably connected inside the first sealing cap (2). A first connecting pipe (5) is fixedly connected to the outer wall of the rotating sleeve (4). A second connecting pipe (6) and a connecting port (7) are fixedly connected to the outer wall of the second sealing cap (3). A pressure sensor (8) is connected to the inside of the connecting port (7) by threads. A cleaning assembly is used to clean the solvent remaining inside the filter cartridge (1). The cleaning assembly is connected to the filter cartridge (1), the second sealing cover (3), and the rotating sleeve (4).

2. The sealed drum-type solvent sterilization filter according to claim 1, characterized in that, The cleaning assembly includes a support frame (9) fixedly connected to the inner wall of the second sealing cover (3), and a filter element (10) abutting against the outer wall of the support frame (9), the filter element (10) being inserted into the inside of the filter cartridge (1).

3. A sealed drum-type solvent sterilization filter according to claim 2, characterized in that, A piston plate (11) is provided at one end of the filter element (10) away from the support frame (9), and the outer contour of the piston plate (11) matches the inner contour of the filter element (10).

4. A sealed drum-type solvent sterilization filter according to claim 3, characterized in that, The piston plate (11) is fixedly connected to a first connecting sleeve (12) on the side away from the filter element (10). The outer wall of the end of the first connecting sleeve (12) away from the piston plate (11) is fixedly connected to a threaded part (13). The threaded part (13) is threadedly connected to the inside of the rotating sleeve (4).

5. A sealed drum-type solvent sterilization filter according to claim 4, characterized in that, The first connecting sleeve (12) has a second connecting sleeve (14) inserted inside, and the second connecting sleeve (14) has a connecting rod (15) inserted inside. The first connecting sleeve (12) and the second connecting sleeve (14) have a first groove (16) and a second groove (17) respectively.

6. A sealed drum-type solvent sterilization filter according to claim 5, characterized in that, The outer walls of the second connecting sleeve (14) and the connecting rod (15) are respectively fixedly connected to the first slider (18) and the second slider (19). The first slider (18) is slidably connected inside the first slide groove (16), and the second slider (19) is slidably connected inside the second slide groove (17).

Images