Filtering device of air separation water system
By designing an independently replaceable filter plate structure and an automatic reagent addition system, the problem of filter plate cleaning affecting the operation of the air separation oxygen generation equipment has been solved. This enables rapid filter plate replacement and automatic reagent addition, improving the operating efficiency and convenience of the air separation water system filtration device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-03-10
AI Technical Summary
The existing air separation water system filter device needs to be disassembled during filter plate cleaning, which makes water filtration impossible and affects the operation of the air separation oxygen generation equipment.
The design incorporates inlet and outlet filtration components, featuring independently replaceable filter plates. It is also equipped with a storage tank, a testing tank, and other components to enable rapid filter plate replacement and automatic reagent addition, ensuring the filtration system continues to function normally during cleaning.
It enables quick replacement of filter plates and automatic addition of reagents, ensuring that the air separation water system filtration device can continue to filter even when cleaning the filter plates, thus improving the operating efficiency and convenience of the equipment.
Smart Images

Figure CN223980223U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air separation oxygen production technology, specifically to a filtration device for an air separation water system. Background Technology
[0002] Air separation equipment utilizes the different boiling points of various gases in the air. Through pressurization, precooling, purification, and liquefaction using mostly the cooling capacity provided by a turbine expander, the gases are then distilled to obtain the desired oxygen and nitrogen gases. During the air separation oxygen production process, a water filtration device is required to filter the water used. According to an air separation water system filtration device with publication number CN219128435U, the required reagents are added to the tank according to the air separation oxygen production process. The inlet pipe is threaded to the drain port of the air separation oxygen production equipment outside the shell via an external thread on the outer wall of the pipe or tank cover. A sealing ring is installed to seal the drain port of the air separation oxygen production equipment with the water inlet pipe of the shell. It is worth noting that, depending on the differences in air separation oxygen production processes, the drain pipe or drain channel of the shell can be connected to the water inlet of the air separation oxygen production equipment. After the water enters the tank, it is filtered by a filter plate. The filtered water mixes with the reagents at the bottom of the tank. Depending on the type of reagent, different mixing effects are achieved with the water. The water remains in the tank, and when it needs to be drained, the valve on the drain pipe is opened. When water is added to the tank, the float rises with the water level inside the tank. When the water level exceeds the L-shaped floating channel, the top of the float abuts against the limiting ring, sealing the L-shaped floating channel. When the water treatment can react quickly as required by the air separation oxygen production process, the inspection door is opened, and the bolts are turned to separate the connecting frame from the L-shaped floating channel. The above water filling steps are then repeated. The water enters the tank, reacts quickly with the reagent, and is discharged through the drain channel. When the water is discharged, it undergoes secondary filtration through the filter screen on the drain channel to improve water quality. At this time, the drain pipe valve is closed. However, when cleaning the filter plates, the filter plates need to be removed from the device. This means that the device cannot be used for water filtration during disassembly and cleaning, thus affecting the operation of the air separation oxygen production equipment. Utility Model Content
[0003] To address the shortcomings of existing technologies, this invention provides a filtration device for an air separation water system, which solves the problems mentioned in the background section.
[0004] To achieve the above objectives, this utility model provides the following technical solution: A filtration device for an air separation water system, comprising a barrel body, an inlet filtration assembly fixedly connected to the top of the barrel body, and an outlet filtration assembly fixedly connected to the bottom of the barrel body. Both the inlet and outlet filtration assemblies are composed of first connectors. One end of each first connector is connected to the end of the barrel body. First switching valves are fixedly connected to both ends of each first connector. A filter box is fixedly connected to one end of each first switching valve. A second switching valve is fixedly connected to the other end of each filter box. Second connectors are fixedly connected between the two second switching valves. One end of the second connector in the inlet filter assembly is fixedly connected to an inlet connector, and one end of the second connector in the outlet filter assembly is fixedly connected to an outlet connector. A sealing groove is provided on one side of each filter box, and an installation box is placed inside each sealing groove. One end of each installation box passes through the sealing groove and extends into the filter box. An installation groove is provided inside each installation box, and a filter plate is placed inside each installation groove. Sliding grooves are provided on both sides of the inner wall of the installation box and on both sides of the installation groove. Sliding blocks are fixedly connected to both ends of the filter plate and inside the sliding grooves. An installation block is fixedly connected to one end of the installation box and on the outside of the filter box.
[0005] Preferably, threaded grooves are provided on both sides of the mounting box, and screws are threaded into the grooves. One end of each screw is inserted into the slider. One end of each screw installed in the mounting box near the mounting block extends to the outside of the mounting block.
[0006] Preferably, a fixed box is fixedly connected to one side of the filter box and the top of the mounting block. A ball screw is rotatably connected inside the fixed box. A locking post is threaded to the outside of the ball screw. One end of the locking post is inserted into the mounting block, and the other end of the ball screw extends to the outside of the fixed box and cooperates with the mounting block through the locking post.
[0007] Preferably, a storage box is fixedly connected to one side of the barrel, a discharge valve is fixedly connected to the bottom of the storage box, a storage box is fixedly connected to the bottom of the discharge valve, a plurality of weighing sensors are provided at the bottom of the inner cavity of the storage box, a detection box is placed inside the storage box and above the weighing sensors, a discharge valve is fixedly connected to the bottom of the detection box, and the bottom end of the discharge valve extends into the interior of the storage box.
[0008] Preferably, the bottom end of the discharge valve extends to the bottom of the storage box, a discharge valve is fixedly connected to one side of the barrel, a receiving hopper is fixedly connected to the top of the discharge valve, and one end of the discharge valve extends into the inside of the barrel.
[0009] Preferably, a discharge valve is fixedly connected to one side of the barrel, and a controller is fixedly connected to one side of the storage box.
[0010] This utility model provides a filtration device for an air separation water system, which has the following beneficial effects:
[0011] 1. The air separation water system filtration device is equipped with an inlet water filtration assembly, an outlet water filtration assembly, and two sets of filter boxes. If it is necessary to replace or clean the filter plates inside one of the filter boxes in the inlet water filtration assembly or the filter plates inside one of the filter boxes in the outlet water filtration assembly, open the first and second switch valves corresponding to the other filter box in the inlet water filtration assembly and the outlet water filtration assembly, and then close the first and second switch valves corresponding to the filter box that needs to be cleaned. Water filtration is then carried out through the other set of filter boxes. When the filter plates that need to be cleaned are removed for cleaning, it will not hinder the water filtration operation of this filtration device.
[0012] 2. This air separation water system filtration device is equipped with a storage tank, a detection tank, and a weighing tank. When it is necessary to add chemicals to the tank, the discharge valve on the storage tank is opened, allowing the chemicals to fall into the detection tank. The amount of chemicals in the detection tank is detected by a weighing sensor. When the amount of chemicals reaches the preset value, the discharge valve at the bottom of the storage tank closes, and then the discharge valve is opened, allowing the weighed chemicals in the detection tank to flow into the receiving hopper. Then, the chemicals enter the tank through the opened discharge valve, so that they can react with the water. This facilitates the addition of chemicals to the tank and makes the device easy to use. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the internal structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the water filtration component structure of this utility model;
[0015] Figure 3 This utility model Figure 1 Enlarged view of point A;
[0016] Figure 4 This utility model Figure 1 Enlarged view of point B.
[0017] In the diagram: 1. Barrel body; 2. Inlet water filter assembly; 3. Outlet water filter assembly; 4. Filter box; 5. First switch valve; 6. First connector; 7. Second switch valve; 8. Second connector; 9. Inlet connector; 10. Outlet connector; 11. Mounting block; 12. Mounting box; 13. Mounting groove; 14. Filter plate; 15. Slide groove; 16. Slider; 17. Threaded groove; 18. Screw; 19. Sealing groove; 20. Fixing box; 21. Ball screw; 22. Clamping post; 23. Storage box; 24. Storage box; 25. Detection box; 26. Weighing sensor; 27. Feeding valve; 28. Receiving hopper; 29. Discharge valve; 30. Discharge valve; 31. Discharge valve. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0019] Please see Figures 1 to 4 This utility model provides a technical solution: an air separation water system filtration device, including a barrel 1, an inlet filter assembly 2 fixedly connected to the top of the barrel 1, and an outlet filter assembly 3 fixedly connected to the bottom of the barrel 1. Both the inlet filter assembly 2 and the outlet filter assembly 3 are composed of first connectors 6. One end of each first connector 6 is connected to the end of the barrel 1, and the other two ends of each first connector 6 are fixedly connected to first switching valves 5. One end of each first switching valve 5 is fixedly connected to a filter box 4, and the other end of each filter box 4 is fixedly connected to a second switching valve 7. A second connector 8 is fixedly connected between the two second switching valves 7. One of the second connectors 8 in the inlet filter assembly 2... The filter box 4 is fixedly connected to an inlet connector 9 at one end, and an outlet connector 10 is fixedly connected to one end of the second connector 8 in the outlet filter assembly 3. A sealing groove 19 is provided on one side of the filter box 4. An installation box 12 is placed inside the sealing groove 19. One end of the installation box 12 passes through the sealing groove 19 and extends into the filter box 4. An installation groove 13 is provided inside the installation box 12. A filter plate 14 is placed inside the installation groove 13. A sliding groove 15 is provided on both sides of the inner wall of the installation box 12 and located in the installation groove 13. A slider 16 is fixedly connected to both ends of the filter plate 14 and located inside the sliding groove 15. An installation block 11 is fixedly connected to one end of the installation box 12 and located outside the filter box 4.
[0020] Please see Figures 1 to 3Both sides of the mounting box 12 are provided with threaded grooves 17, and screws 18 are threadedly connected inside the threaded grooves 17. One end of each screw 18 is inserted into the slider 16. One end of each screw 18 installed in the mounting box 12 near the mounting block 11 extends to the outside of the mounting block 11. The position of the slider 16 can be limited by the screws 18, so that the filter plate 14 can be installed inside the mounting groove 13.
[0021] Please see Figures 1 to 3 A fixed box 20 is fixedly connected to one side of the filter box 4 and the top of the mounting block 11. A ball screw 21 is rotatably connected inside the fixed box 20. A locking post 22 is threadedly connected to the outside of the ball screw 21. One end of the locking post 22 is inserted into the inside of the mounting block 11, and the other end of the ball screw 21 extends to the outside of the fixed box 20. By cooperating with the mounting block 11 through the locking post 22, the positions of the mounting block 11, the mounting box 12, and the filter plate 14 can be limited and fixed.
[0022] Please see Figure 1 and Figure 4 A storage box 23 is fixedly connected to one side of the barrel 1. A discharge valve 31 is fixedly connected to the bottom of the storage box 23. A storage box 24 is fixedly connected to the bottom of the discharge valve 31. Several weighing sensors 26 are installed at the bottom of the inner cavity of the storage box 24. A detection box 25 is placed inside the storage box 24 and above the weighing sensors 26. A discharge valve 27 is fixedly connected to the bottom of the detection box 25. The bottom end of the discharge valve 31 extends into the storage box 24. When it is necessary to replenish the medicine into the barrel 1, the discharge valve 31 on the storage box 23 is opened, so that the medicine falls into the detection box 25 through the storage box 23. The weighing sensors 26 detect the amount of medicine in the detection box 25. When the amount of medicine reaches the preset value, the discharge valve 31 at the bottom of the storage box 23 is closed.
[0023] Please see Figure 1 and Figure 4 The bottom end of the discharge valve 27 extends to the bottom of the storage box 24. A discharge valve 29 is fixedly connected to one side of the barrel 1. A receiving hopper 28 is fixedly connected to the top of the discharge valve 29. One end of the discharge valve 29 extends into the inside of the barrel 1. When the discharge valve 27 is opened, the weighed reagent inside the detection box 25 flows into the receiving hopper 28 through the discharge valve 27, and then enters the inside of the barrel 1 through the opened discharge valve 29 so that the reagent can react with water.
[0024] Please see Figure 1 and Figure 4 A discharge valve 30 is fixedly connected to one side of the barrel 1, and a controller is fixedly connected to one side of the storage box 24 to control the device.
[0025] In summary, when using the air separation water system filtration device, the inlet connector 9 is connected to the drain port of the air separation oxygen production equipment. Then, depending on the differences in the air separation oxygen production process, both the outlet connector 10 and the discharge valve 30 can be connected to the inlet of the air separation oxygen production equipment. Water is then discharged through the inlet connector 9 into the second connector 8, and then enters the filter box 4 through the opened second switch valve 7. After being filtered by the filter plate 14, the water enters the first connector 6 through the opened first switch valve 5, and then enters the tank 1 through the first connector 6, thus allowing the water to circulate within the tank 1. The reagents are mixed, and the water is allowed to mix differently depending on the reagent. The water is left to stand in tank 1, and then the drain valve 30 is opened to discharge it. When the water treatment process requires rapid reaction according to the needs of the air separation oxygen production process, the drain valve 30 is closed, and the first switch valve 5 and the second switch valve 7 on the outlet water filter assembly 3 are opened. Then the water enters tank 1 and reacts rapidly with the reagents, and is discharged into the filter box 4 through the second switch valve 7. It is then filtered through the filter plate 14, and then discharged into the outlet water connector 10 through the second switch valve 7 and the second connector 8. If the inlet water filter assembly 2 needs to be adjusted, the process can be repeated. When replacing or cleaning the filter plate 14 inside one of the filter boxes 4 in the inlet water filter assembly 2 and the filter plate 14 inside one of the filter boxes 4 in the outlet water filter assembly 3, open the first switch valve 5 and the second switch valve 7 corresponding to the other filter box 4 in the outlet water filter assembly 2 and the outlet water filter assembly 3, and then close the first switch valve 5 and the second switch valve 7 corresponding to the filter box 4 that needs to be cleaned. Water filtration is then performed through the other set of filter boxes 4. Then, the operator resets and rotates the ball screw 21, causing one end of the ball screw 21 to drive the locking pin 22 to move out of the mounting block 11, releasing the limit on the mounting block 11, and then the mounting block 11 is then... Remove the mounting box 12 from the filter box 4, then unscrew the screw 18 from the inside of the slider 16, then remove the filter plate 14 from the inside of the mounting groove 13, clean the mounting groove 13, then put the filter plate 14 into the mounting groove 13 so that the slider 16 is located inside the slide groove 15, then screw one end of the screw 18 into the inside of the slider 16, then pass one end of the mounting box 12 through the sealing groove 19 and insert it into the inside of the filter box 4, then the operator drives the ball screw 21 to reset and rotate, so that one end of the ball screw 21 drives the locking post 22 to insert into the inside of the mounting block 11, thereby limiting the position of the mounting block 11.
[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A filter device for a space division water system comprising a barrel (1), characterized in that: The top of the barrel (1) is fixedly connected with the water inlet filter assembly (2), the bottom of the barrel (1) is fixedly connected with the water outlet filter assembly (3), the water inlet filter assembly (2) and the water outlet filter assembly (3) are composed of the first connecting head (6), one end of the first connecting head (6) is connected with the end of the barrel (1), the other two ends of the first connecting head (6) are fixedly connected with the first switch valve (5), one end of the first switch valve (5) is fixedly connected with the filter box (4), the other end of the filter box (4) is fixedly connected with the second switch valve (7), the second switch valve (7) is fixedly connected with the second connecting head (8), one end of the second connecting head (8) in the water inlet filter assembly (2) is fixedly connected with the water inlet connecting head (9), one end of the second connecting head (8) in the water outlet filter assembly (3) is fixedly connected with the water outlet connecting head (10), one side of the filter box (4) is provided with the sealing groove (19), the sealing groove (19) is internally provided with the mounting box (12), one end of the mounting box (12) penetrates through the sealing groove (19) and extends into the filter box (4), the mounting box (12) is internally provided with the mounting groove (13), the mounting groove (13) is internally provided with the filter plate (14), the inner wall of the mounting box (12) and the two sides of the mounting groove (13) are provided with the sliding groove (15), the two ends of the filter plate (14) and the inner sides of the sliding groove (15) are fixedly connected with the sliding block (16), one end of the mounting box (12) and the outer side of the filter box (4) are fixedly connected with the mounting block (11).
2. An apparatus for filtering a space divided water system according to claim 1, wherein: The two sides of the mounting box (12) are provided with the threaded groove (17), the threaded groove (17) is internally screwed with the screw (18), one end of the screw (18) is inserted into the sliding block (16), one end of the screw (18) close to the mounting block (11) in the mounting box (12) extends to the outer side of the mounting block (11).
3. The filter apparatus of claim 1, wherein: One side of the filter box (4) and the top of the mounting block (11) are fixedly connected with the fixed box (20), the fixed box (20) is internally rotatably connected with the ball screw (21), the outer side of the ball screw (21) is screwed with the clamping column (22), one end of the clamping column (22) is inserted into the mounting block (11), the other end of the ball screw (21) extends to the outer side of the fixed box (20), and the clamping column (22) is matched with the mounting block (11).
4. The filter apparatus of claim 1, wherein: One side of the barrel (1) is fixedly connected with a storage tank (23), the bottom of the storage tank (23) is fixedly connected with a discharge valve (31), the bottom of the discharge valve (31) is fixedly connected with a storage tank (24), the bottom of the storage tank (24) is provided with a plurality of weighing sensors (26), the inside of the storage tank (24) and above the weighing sensors (26) is placed with a detection tank (25), the bottom of the detection tank (25) is fixedly connected with a discharging valve (27), the bottom end of the discharge valve (31) extends to the inside of the storage tank (24).
5. An apparatus for filtering a space divided water system according to claim 4, wherein: The bottom end of the discharging valve (27) extends below the storage tank (24), one side of the barrel (1) is fixedly connected with a discharge valve (29), the top end of the discharge valve (29) is fixedly connected with a receiving hopper (28), one end of the discharge valve (29) extends to the inside of the barrel (1).
6. An air space water system filter apparatus as defined in claim 4, wherein: One side of the barrel (1) is fixedly connected with a discharge valve (30), one side of the storage tank (24) is fixedly connected with a controller.
Citation Information
Patent Citations
Water filtering device for oxygen production and air separation
CN219128435U