A perfluoropolyether pre-packaging impurity removal filtration device

Abstract

This utility model discloses a pre-packaging impurity removal and filtration device for perfluoropolyether. The utility model includes: a base, a collection tank fixedly connected inside the base, a fixing frame fixedly connected to the upper end of the base, a material tank fixedly connected to the inner side of the fixing frame, a T-connector 1 fixedly connected to the bottom of the material tank, a solenoid valve 1 fixedly connected to both ends of the T-connector 1, a bend pipe 1 fixedly connected to the end of the solenoid valve 1 away from the T-connector 1, a filtration mechanism provided at the bottom of the bend pipe 1, a second T-connector 2 fixedly connected to the upper end of the collection tank, a second solenoid valve 2 fixedly connected to both ends of the second T-connector 2, and a bend pipe 2 fixedly connected to the end of the second solenoid valve 2 away from the T-connector 2. The filtration mechanism allows for multi-layer filtration of the perfluoropolyether, thus meeting industrial production needs. The design of installing two sets of filtration mechanisms allows the equipment to operate without stopping, greatly improving production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of special lubricant purification equipment, specifically a perfluoropolyether pre-packaging impurity removal and filtration device. Background Technology

[0002] Perfluoropolyether (PFPE) is a synthetic polymer that is liquid at room temperature. It is composed of carbon, fluorine, and oxygen atoms, and its molecular backbone contains flexible ether bonds. Fluorine atoms replace hydrogen atoms to form strong CF bonds, giving it high thermal stability (up to 300℃), chemical inertness, low volatility, and a wide liquid temperature range (-80—300℃). This material has been used as a lubricant for aerospace machinery since the 1960s, and its applications have gradually expanded to nuclear industry centrifuges, semiconductor vacuum pumps, and magnetic recording media. However, high-temperature decomposition may generate toxic substances. As a high-performance synthetic lubricant, PFPE, with its excellent chemical stability (resistance to strong acids, strong alkalis, and strong oxidants), wide temperature range adaptability, and extremely low vapor pressure, has become a core lubricating medium for critical equipment in extreme environments. In high-end equipment such as semiconductor lithography machines, aero-engine bearings, and aerospace attitude control systems, the purity of PFPE directly determines the operational reliability of the equipment; even 0.1μm solid particles can cause scratches on precision components.

[0003] However, traditional filtration devices use a single-pore design for the filter element, which cannot meet the needs of industrial production. At the same time, cleaning the filter element requires stopping the machine, which greatly reduces the production efficiency of the equipment. Utility Model Content

[0004] The purpose of this invention is to provide a pre-packaging impurity removal and filtration device for perfluoropolyethers to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pre-packaging impurity removal and filtration device for perfluoropolyether, comprising: a base, a collection bucket fixedly connected inside the base, a fixing frame fixedly connected to the upper end of the base, a material bucket fixedly connected to the inner side of the fixing frame, a three-way connector one fixedly connected to the bottom of the material bucket, a solenoid valve one fixedly connected to both the left and right ends of the three-way connector one, a bend pipe one fixedly connected to the end of the solenoid valve one away from the three-way connector one, a filtration mechanism provided at the bottom end of the bend pipe one, a two-way connector two fixedly connected to the upper end of the collection bucket, a solenoid valve two fixedly connected to both the left and right ends of the three-way connector two, and a bend pipe two fixedly connected to the end of the solenoid valve two away from the three-way connector two.

[0006] Furthermore, the filtration mechanism includes a coarse filtration component and a fine filtration component. The fine filtration component is located at the bottom of the coarse filtration component. The coarse filtration component includes a first through pipe, a metal mesh filter element, an air inlet, an air inlet, and an air outlet. The upper end of the first through pipe is fixedly connected to a first bend pipe via a flange. The metal mesh filter element is fixedly connected inside the first through pipe. The air inlet, air inlet, and air outlet are fixedly connected to the side of the through pipe.

[0007] Furthermore, the fine filtration assembly includes a second through-pipe, a support layer, a functional layer, and a hydrophobic layer. The second through-pipe is fixedly connected to the bottom end of the first through-pipe, and the bottom end of the second through-pipe is fixedly connected to the second bend through a flange. The support layer, the functional layer, and the hydrophobic layer are fixedly connected inside the second through-pipe in sequence from top to bottom.

[0008] Furthermore, an air pump is fixedly installed on the upper end of the base, a three-way connector is fixedly connected to the output end of the air pump, a solenoid valve is fixedly connected to the left and right ends of the three-way connector, a bend is fixedly connected to the upper end of the solenoid valve, and a connecting pipe is fixedly connected to the upper end of the bend.

[0009] Furthermore, a hose 1 and a hose 2 are fixedly connected to the periphery of the connecting pipe. A one-way valve 1 is fixedly connected to the end of the hose 1 away from the connecting pipe. An insertion tube 1 is fixedly connected to the end of the one-way valve 1 away from the hose 1. The insertion tube 1 is inserted into the air inlet 1.

[0010] Furthermore, a one-way valve is fixedly connected to the end of the second hose away from the connecting pipe, and an insertion tube is fixedly connected to the end of the second one-way valve away from the second hose, and the insertion tube is inserted into the air inlet.

[0011] Furthermore, a support frame is fixedly connected to the upper end of the base, and two sets of collection boxes are fixedly connected to the upper end of the support frame.

[0012] Furthermore, a flexible hose three is fixedly connected to the side of the collection box near the filter mechanism, a one-way valve three is fixedly connected to the end of the flexible hose three near the filter mechanism, and an insertion tube three is fixedly connected to the end of the one-way valve three near the filter mechanism. The insertion tube three is inserted into the air outlet.

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

[0014] This invention enables multi-layer filtration of perfluoropolyether through a filtration mechanism, thereby meeting the needs of industrial production. The design of installing two sets of filtration mechanisms allows the equipment to operate without stopping, greatly improving the production efficiency of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front view structure in one embodiment of the present invention;

[0016] Figure 2 for Figure 1 A magnified view of a portion of position A in the middle;

[0017] Figure 3 for Figure 1 Schematic diagram of the middle filtration mechanism;

[0018] Figure 4 for Figure 1 A cross-sectional schematic diagram of the filter mechanism.

[0019] Attached reference numerals: 1. Base; 2. Collection bucket; 3. Fixing frame; 4. Material bucket; 5. T-connector 1; 6. Solenoid valve 1; 7. Bend 1; 8. Filtering mechanism; 81. Coarse filter assembly; 811. Through pipe 1; 812. Metal mesh filter element; 813. Air inlet 1; 814. Air inlet 2; 815. Air outlet; 82. Fine filter assembly; 821. Through pipe 2; 822. Support layer; 823. Functional layer; 824. 9. Hydrophobic layer; 10. Two tee connectors; 11. Two solenoid valves; 12. Two bends; 13. Air pump; 14. Three tee connectors; 15. Three solenoid valves; 16. Three bends; 17. Connecting pipe; 18. One hose; 19. One check valve; 20. One insertion tube; 21. Two hoses; 22. Two check valves; 23. Two insertion tubes; 24. Support frame; 25. Collection box; 26. Three hoses; 27. Three check valves; 28. Three insertion tubes. Detailed Implementation

[0020] 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.

[0021] Please refer to the following: Figures 1-4 ,in Figure 1 This is a schematic diagram of the front view structure in one embodiment of the present invention; Figure 2 for Figure 1 A magnified view of a portion of position A in the middle; Figure 3 for Figure 1 Schematic diagram of the middle filtration mechanism; Figure 4 for Figure 1A cross-sectional structural diagram of a filtration mechanism for perfluoropolyether pre-packaging impurity removal filtration device includes: a base 1, a collection tank 2 fixedly connected inside the base 1, a fixing frame 3 fixedly connected to the upper end of the base 1, a material tank 4 fixedly connected to the inner side of the fixing frame 3, a three-way connector 5 fixedly connected to the bottom of the material tank 4, a solenoid valve 6 fixedly connected to both ends of the three-way connector 5, a bend 7 fixedly connected to the end of the solenoid valve 6 away from the three-way connector 5, a filtration mechanism 8 provided at the bottom of the bend 7, a two-way connector 9 fixedly connected to the upper end of the collection tank 2, a solenoid valve 10 fixedly connected to both ends of the two-way connector 9, and a bend 11 fixedly connected to the end of the solenoid valve 10 away from the three-way connector 9.

[0022] The filtration mechanism 8 includes a coarse filter assembly 81 and a fine filter assembly 82. The fine filter assembly 82 is located at the bottom of the coarse filter assembly 81. The coarse filter assembly 81 includes a first through pipe 811, a metal mesh filter element 812, an air inlet 813, an air inlet 814, and an air outlet 815. The upper end of the first through pipe 811 is fixedly connected to the first bend pipe 7 through a flange. The metal mesh filter element 812 is fixedly connected inside the first through pipe 811. The air inlet 813, the air inlet 814, and the air outlet 815 are fixedly connected to the circumferential side of the first through pipe 811.

[0023] The fine filtration component 82 includes a second through-pipe 821, a support layer 822, a functional layer 823, and a hydrophobic layer 824. The second through-pipe 821 is fixedly connected to the bottom end of the first through-pipe 811, and the bottom end of the second through-pipe 821 is fixedly connected to the second bend 11 through a flange. The support layer 822, the functional layer 823, and the hydrophobic layer 824 are fixedly connected inside the second through-pipe 821 from top to bottom. The support layer 822 is a polytetrafluoroethylene (PTFE) porous material with a pore size of 5μm and a thickness of 200μm, providing mechanical strength. The functional layer 823 is a graphene-modified PTFE membrane with a pore size of 0.1μm and a porosity of 85%, which adsorbs colloidal impurities through intermolecular van der Waals forces. The hydrophobic layer 824 is a fluorinated nanofiber membrane with a contact angle >150° and a water retention rate <10ppm.

[0024] An air pump 12 is fixedly installed on the upper end of the base 1. A three-way connector 3 13 is fixedly connected to the output end of the air pump 12. A solenoid valve 3 14 is fixedly connected to the left and right ends of the three-way connector 3 13. A bend pipe 3 15 is fixedly connected to the upper end of the solenoid valve 3 14. A connecting pipe 16 is fixedly connected to the upper end of the bend pipe 3 15.

[0025] The connecting pipe 16 is fixedly connected to the side of the hose 17 and the hose 20. The end of the hose 17 away from the connecting pipe 16 is fixedly connected to the one-way valve 18. The end of the one-way valve 18 away from the hose 17 is fixedly connected to the insertion tube 19. The insertion tube 19 is inserted into the air inlet 813.

[0026] One-way valve 21 is fixedly connected to the end of hose 20 away from connecting pipe 16. One-way valve 22 is fixedly connected to the end of one-way valve 21 away from hose 20. Insertion tube 22 is inserted into air inlet 2 814.

[0027] A support frame 23 is fixedly connected to the upper end of the base 1, and two sets of collection boxes 24 are fixedly connected to the upper end of the support frame 23.

[0028] A hose 25 is fixedly connected to the side of the collection box 24 near the filter mechanism 8. A one-way valve 26 is fixedly connected to the end of the hose 25 near the filter mechanism 8. A tube 27 is fixedly connected to the end of the one-way valve 26 near the filter mechanism 8. The tube 27 is inserted into the air outlet 815.

[0029] In summary, the perfluoropolyether pre-packaging impurity removal and filtration device provided by this utility model allows the perfluoropolyether to be filtered by the right-side filtration mechanism 8 when the solenoid valve 6 on the right side of the three-way connector 5 and the solenoid valve 10 on the right side of the three-way connector 9 are opened simultaneously during operation. After the perfluoropolyether enters the filtration mechanism 8, it first passes through the metal mesh filter element 812 for coarse filtration of larger impurities. After filtration, it enters the two-way pipe 821 and passes through the support layer 822, the functional layer 823, and the hydrophobic layer 824 for fine filtration. The filtered perfluoropolyether finally flows into the collection tank 2. When the metal mesh filter element 812 inside the right-side filtration mechanism 8 is blocked, the solenoid valve 6 and the solenoid valve 10 on the right side can be closed. Then, the solenoid valve 6 on the left side of the three-way connector 5 and the solenoid valve 10 on the left side of the three-way connector 9 can be opened. At this time, the perfluoropolyether can be filtered by the left-side filtration mechanism 8. The right-side filtration mechanism 8 can then be removed for cleaning or replacement.

[0030] The metal mesh filter element 812 filters the perfluoropolyether first, so it is relatively easy to get clogged. When the metal mesh filter element 812 inside the right-side filter mechanism 8 is clogged, the right-side filter mechanism 8 can stop working, and the left-side filter mechanism 8 can start working. At this time, the solenoid valve 14 on the right side of the three-way connector 13 is opened to start the air pump 12. The air blown out by the air pump 12 can be blown into the inside of the first pipe 811 through the first insertion pipe 19 and the second insertion pipe 22, and then into the inside of the collection box 24 through the third insertion pipe 27, the one-way valve 26, and the hose 25. At this time, the air blown out by the second insertion pipe 22 can blow up the impurities at the top of the metal mesh filter element 812. While the impurities are blown up, the air blown out by the first insertion pipe 19 can carry the impurities into the inside of the collection box 24. This structure makes it easy to clean the metal mesh filter element 812, thereby reducing the frequency of filter mechanism 8 replacement and saving costs.

Claims

1. A pre-packaging impurity removal and filtration device for perfluoropolyether, characterized in that, include: A base (1) is fixedly connected to a collection bucket (2) inside the base (1). A fixing frame (3) is fixedly connected to the upper end of the base (1). A material bucket (4) is fixedly connected to the inner side of the fixing frame (3). A three-way connector (5) is fixedly connected to the bottom of the material bucket (4). A solenoid valve (6) is fixedly connected to both the left and right ends of the three-way connector (5). A bend (7) is fixedly connected to the end of the solenoid valve (6) away from the three-way connector (5). A filter mechanism (8) is provided at the bottom end of the bend (7). A three-way connector (9) is fixedly connected to the upper end of the collection bucket (2). A solenoid valve (10) is fixedly connected to both the left and right ends of the three-way connector (9). A bend (11) is fixedly connected to the end of the solenoid valve (10) away from the three-way connector (9).

2. The perfluoropolyether pre-packaging impurity removal and filtration device according to claim 1, characterized in that, The filtration mechanism (8) includes a coarse filter assembly (81) and a fine filter assembly (82). The fine filter assembly (82) is located at the bottom of the coarse filter assembly (81). The coarse filter assembly (81) includes a first through pipe (811), a metal mesh filter element (812), an air inlet (813), an air inlet (814), and an air outlet (815). The upper end of the first through pipe (811) is fixedly connected to the first bend pipe (7) through a flange. The metal mesh filter element (812) is fixedly connected inside the first through pipe (811). The air inlet (813), the air inlet (814), and the air outlet (815) are fixedly connected to the circumferential side of the first through pipe (811).

3. The perfluoropolyether pre-packaging impurity removal and filtration device according to claim 2, characterized in that, The fine filtration assembly (82) includes a second through pipe (821), a support layer (822), a functional layer (823), and a hydrophobic layer (824). The second through pipe (821) is fixedly connected to the bottom end of the first through pipe (811), and the bottom end of the second through pipe (821) is fixedly connected to the second bend pipe (11) through a flange. The support layer (822), the functional layer (823), and the hydrophobic layer (824) are fixedly connected to the inside of the second through pipe (821) from top to bottom.

4. The perfluoropolyether pre-packaging impurity removal and filtration device according to claim 3, characterized in that, An air pump (12) is fixedly installed on the upper end of the base (1). A three-way connector (13) is fixedly connected to the output end of the air pump (12). A solenoid valve (14) is fixedly connected to the left and right ends of the three-way connector (13). A bend pipe (15) is fixedly connected to the upper end of the solenoid valve (14). A connecting pipe (16) is fixedly connected to the upper end of the bend pipe (15).

5. The perfluoropolyether pre-packaging impurity removal and filtration device according to claim 4, characterized in that, The connecting pipe (16) is fixedly connected to a first hose (17) and a second hose (20) on its periphery. The end of the first hose (17) away from the connecting pipe (16) is fixedly connected to a first check valve (18). The end of the first check valve (18) away from the first hose (17) is fixedly connected to a first insertion tube (19). The first insertion tube (19) is inserted into the air inlet (813).

6. The perfluoropolyether pre-packaging impurity removal and filtration device according to claim 5, characterized in that, One-way valve 2 (21) is fixedly connected to the end of the hose 2 (20) away from the connecting pipe (16), and one-way valve 2 (21) is fixedly connected to the end of the one-way valve 2 (21) away from the hose 2 (20), and the insert tube 2 (22) is inserted into the air inlet 2 (814).

7. The perfluoropolyether pre-packaging impurity removal and filtration device according to claim 6, characterized in that, The upper end of the base (1) is fixedly connected to a support frame (23), and the upper end of the support frame (23) is fixedly connected to two sets of collection boxes (24).

8. The perfluoropolyether pre-packaging impurity removal and filtration device according to claim 7, characterized in that, The collection box (24) is fixedly connected to a hose three (25) on the side near the filter mechanism (8). The end of the hose three (25) near the filter mechanism (8) is fixedly connected to a one-way valve three (26). The end of the one-way valve three (26) near the filter mechanism (8) is fixedly connected to a tube three (27). The tube three (27) is inserted into the air outlet (815).

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