Graded filtering device for surface treatment fluid and fluid circulation system
The multi-layer filter structure of the graded filtration device solves the problems of easy clogging and short life of traditional filter elements, achieving efficient and long-life fluid filtration, and reducing equipment costs and space occupation.
Patent Information
- Application Number
- CN202423144827.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Traditional fluid filtration devices with fixed pore sizes are prone to clogging or ineffective filtration when faced with impurities of various particle sizes, resulting in short filter lifespan and high costs. Frequent filter replacements also affect processing efficiency.
It adopts a multi-layer filter structure, with filter cotton of gradually decreasing pore size arranged from top to bottom. It combines fluid dynamics, gravity and air pressure to achieve staged filtration, integrating solution filtration and storage functions, and avoiding the need for filter elements to be connected in series in the pipeline.
It improves filtration capacity, extends filter element life, reduces pumping pressure of circulating pump, saves equipment space, and improves processing efficiency.
Smart Images
Figure CN223654518U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fluid processing technical field, and particularly relates to a grading filter device for surface treatment fluid and fluid circulation system. BACKGROUND
[0002] Fluid processing technologies such as water jet, anodic oxidation, micro-arc oxidation, electrolysis and electrolyte plasma polishing are more and more widely used in the field of surface treatment. Fluid not only undertakes the important task of providing processing environment conditions, but also is the carrier of impurity stripping and transportation. With the progress of surface treatment process, product adhesion dirt, scale and stripped impurity particles continuously enter the fluid, making the impurity accumulation in the fluid more and more, which is not conducive to the continuous processing and timely transportation of stripped impurities. In order to ensure the cleanliness of the fluid and improve the utilization rate of the solution, a fluid filter device is usually added in the pipeline.
[0003] In combination with the drawings Figure 1 As shown in the drawings, the fluid filter device 40a of the existing design is usually a double-layer structure in the shape of a barrel. The outer layer is a metal cylindrical barrel with an open end, and a porous filter cartridge is placed inside. One end of the filter device 40a is connected to the water inlet pipe leading out of the processing equipment 20a, and the other end is connected to the water outlet pipe to be introduced into the water storage tank 10a. The entire fluid circulation system is formed by the circulation pump 30a, which draws the fluid stored in the water storage tank 10a into the processing equipment 20a to form a circulation. The filter device 40a filters the fluid during the circulation process.
[0004] The traditional filter cartridge is usually a single-layer hollow cylinder formed in one piece. The filter hole diameter is fixed, and the appropriate filter hole diameter needs to be selected according to the size of the impurities to be filtered. Only impurities larger than the filter hole diameter of the filter cartridge can be filtered, and impurities of smaller size still enter the processing system. In this way, when the circulation pump is started, the fluid is forced to flow from the inside of the filter cartridge to the outside of the filter cartridge. At this time, impurities larger than the filter hole diameter of the filter cartridge will be trapped in the filter cartridge, thereby filtering out impurities in the fluid to obtain relatively clean fluid. When using a traditional fixed-diameter filter cartridge for filtering, if a filter cartridge with a fixed-diameter that is too small is selected, a large number of impurities with a particle size that is too large will be trapped, easily causing the filter cartridge holes to be blocked and the filtering system to fail. If a filter cartridge with a fixed-diameter that is too large is selected, a large number of impurities with a particle size that is too small cannot be effectively filtered.
[0005] The filter cartridge life and the filtering effect are inversely opposed to each other. In order to reasonably prolong the life of the filter cartridge, the filtering effect on fine impurities often has to be sacrificed. In actual application, the particle sizes of impurities in the fluid are various, and the adaptability of the traditional fixed-diameter filter cartridge to various particle sizes of impurities is insufficient, which easily causes the filter cartridge to fail quickly or fail to achieve effective filtering. Therefore, such a fluid filter device has the problems of short filter cartridge service life and high use cost. Frequent replacement of the filter cartridge is not only troublesome, but also reduces the processing efficiency. SUMMARY
[0006] In view of the technical problems existing in the filtration of fluid processing in the prior art, the utility model provides a kind of hierarchical filtering device for surface treatment fluid, comprising:
[0007] Box, the inner wall of the box is connected with support plate, the upper of the box is connected with liquid inlet pipe, the lower of the box is connected with liquid outlet pipe;
[0008] Filter core shell is connected to the upper of the support plate, so that the upper of support plate forms first space, and the lower of support plate forms second space, and a plurality of filter cavities for accommodating filter core are formed in the filter core shell;
[0009] A plurality of filter core structures, each of the filter core structures is detachably connected to the filter cavities in the filter core shell;
[0010] Wherein, the upper end face and the lower end face of the filter core shell are provided with through holes, the upper end face of the filter core shell is exposed in the first space, and the lower end face of the filter core shell is exposed in the second space, and the fluid in the first space can pass through the plurality of filter core structures in turn and reach the second space.
[0011] Preferably, the upper end face of the support plate is provided with a gasket, and the lower end face of the filter core shell is connected to the upper end face of the gasket.
[0012] Preferably, the inner side of the support plate forms a rectangular window, the lower end face of the filter core shell is configured as a rectangle, and the lower end face can cover the outer side of the rectangular window.
[0013] Preferably, a pair of first side faces of the filter core shell are provided with inwardly recessed extension structures, the filter cavities are formed above and below the extension structures, and a pair of second side faces of the filter core shell are provided with open slots corresponding to the height of the filter cavities, so that the filter core structures can be put into or taken out of the filter cavities through the open slots.
[0014] Preferably, the thickness of the filter core structure is the same as the height of the filter cavity, and the height of the filter cavity is the same as the height of the open slot.
[0015] Preferably, a settling space is arranged in each of the two filter cavities adjacent to each other, and the height of the settling space is 50±20mm.
[0016] Preferably, three filter cavities are arranged in the filter core shell, and a first filter core structure, a second filter core structure and a third filter core structure are arranged in the three filter cavities from top to bottom in sequence, and the pore size of the first filter core structure, the second filter core structure and the third filter core structure gradually decreases.
[0017] Preferably, the height of the filter core shell is less than the height of the first space.
[0018] Preferably, the top of the box is provided with a cover plate, and the cover plate and the box are sealingly connected through a sealing ring.
[0019] The utility model discloses a second aspect proposes a kind of technical solutions, a fluid circulation system, comprising:
[0020] The above-mentioned grading filter device for surface treatment fluid;
[0021] Fluid processing equipment;
[0022] First pipeline, first end is connected to the drainage end of the fluid processing equipment, second end is connected to the liquid inlet pipe of the box;
[0023] Second pipeline, first end is connected to the liquid outlet pipe of the box, second end is connected to the water inlet end of the fluid processing equipment;
[0024] Circulating pump, connected to the second pipeline;
[0025] Wherein, the box stores fluid medium for fluid processing equipment, is pumped to the fluid processing equipment by circulating pump, makes fluid medium circulate between fluid processing equipment and box, and is filtered by multiple filter core structures in filter core shell to fluid medium.
[0026] Compared with prior art, the utility model has the advantages that:
[0027] The filter device of the utility model is composed of box and multiple layers of filter core in the box, the cross-sectional dimension of filter core is larger because the filter device is not connected in series to pipeline, the filtering capacity of filter device is greatly improved by the arrangement of multiple layers of filter core, the time of filter core replacement is prolonged, frequent interruption of production is avoided, and when solution is filtered, can flow through filter core under the action of fluid power, gravity and gas pressure, can reduce the pumping pressure of circulating pump, improve the filtering efficiency of filter core, simultaneously, the filter device integrates solution filtering function and solution storage function, greatly saves equipment space, improves equipment space utilization. BRIEF DESCRIPTION OF DRAWINGS
[0028] The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is shown in various figures can be represented by a same reference numeral. For purposes of clarity, not every component can be labeled in every drawing. Embodiments of each aspect of the utility model will now be described, by way of example only, with reference to the drawings in which:
[0029] Figure 1 It is the structural schematic diagram of prior art fluid filter device and fluid circulation system;
[0030] Figure 2 It is the structural schematic diagram of the fluid circulation system shown by the utility model.
[0031] Figure 3 is the structure schematic view of the grading filter device for surface treatment fluid shown in the utility model;
[0032] Figure 4 is the structure schematic view of the filter core shell in the box shown in the utility model;
[0033] Figure 5 is the structure schematic view of the filter core shell above the support plate shown in the utility model;
[0034] Figure 6 is the structure schematic view of the filter core shell shown in the utility model. DETAILED DESCRIPTION
[0035] In order to understand the technical content of the utility model more, specific embodiments are raised and the following is described with the attached drawings.
[0036] Combining Figure 3 shown, the utility model proposes a kind of grading filter device for surface treatment fluid, mainly including box 100, filter core shell 120 and multiple filter core structures 130.Filter device is mainly used for the fluid medium for fluid processing equipment 200 used in fluid circulation system is filtered.
[0037] The inner wall of box 100 is connected with support plate 110, the upper of box 100 is connected with liquid inlet pipe 112, the lower of box 100 is connected with liquid outlet pipe 113.The fluid medium after being used from fluid processing equipment 200 is transported to the liquid inlet pipe 112 of box 100 with impurity, after being filtered by filter core structure 130 in filter core shell 120, pure fluid medium is formed and is discharged from liquid outlet pipe 113, then is transported to fluid processing equipment 200 and is used, forming circulation.
[0038] Combining Figure 3 shown, filter core shell 120 is connected to the upper of support plate 110, so that the first space 101 is formed in the upper of support plate 110, the second space 102 is formed in the lower of support plate 110, multiple filter cavities 123b containing filter core are formed in filter core shell 120, and each filter core structure 130 is detachably connected to the filter cavity 123b in filter core shell 120.
[0039] Among them, the upper end surface 121 of filter core shell 120, lower end surface 122 are all equipped with through hole, the upper end surface of filter core shell 120 is exposed in the first space 101, the lower end surface of filter core shell 120 is exposed in the second space 102, fluid in the first space 101 can reach the second space 102 after passing through multiple filter core structures 130 in turn.
[0040] Thus, the fluid medium mixed with impurities entering the first space 101 through the liquid inlet pipe 112 gradually accumulates in the first space 101, and when the liquid level is higher than the upper end surface 121 of the filter core shell 120, the liquid enters the uppermost filter core structure 130 through the through hole, and then passes through the layer-by-layer filtration of the plurality of filter core structures 130 to enter the second space 102.
[0041] In an optional embodiment, three filter cavities 123b are provided in the filter core shell 120, and the first filter core structure, the second filter core structure, and the third filter core structure are sequentially arranged in the three filter cavities 123b from top to bottom, and the pore sizes of the first filter core structure, the second filter core structure, and the third filter core structure gradually decrease.
[0042] Preferably, the first filter core structure, the second filter core structure, and the third filter core structure are all filter core cotton structures.
[0043] Specifically, the first layer of filter core cotton plays a role of rough filtration, is expected to trap large-size impurities, and is selected to have a large pore size, preferably 50-200 μm; the second layer of filter core cotton plays a role of intermediate filtration, is expected to trap intermediate-size impurities, and is selected to have a pore size, preferably 20-50 μm; and the third layer of filter core cotton plays a role of final filtration, is expected to trap small-size impurities, and is selected to have a pore size, preferably 1-20 μm.
[0044] Thus, the plurality of layers of filter core cotton are arranged from top to bottom in order of decreasing pore size. When the solution passes through the filter core combination, large-size impurities in the solution will be intercepted by the uppermost layer of filter core cotton with a large pore size, so that the impurity concentration of the solution entering the next level of filtration is reduced, and the size range of the impurities is narrowed, so as to reduce the filtration pressure of the next level of filter core cotton. In this way, the impurities are dispersed and filtered once at each next level, and finally a variety of particle size range impurities are successfully trapped, a clean solution is obtained, and the filtration effect is guaranteed.
[0045] It should be understood that after the fluid medium enters the first space 101, the liquid level gradually rises until it reaches a position above the upper end surface 121 of the filter core shell 120, and then the solution is filtered by the plurality of filter core structures 130 under the action of fluid power, gravity, and gas pressure, and then flows out through the water outlet, so as to realize effective filtration of the solution.
[0046] Compared with the conventional single-layer or fixed-pore-size type filter core filtration device, the above-mentioned filtration device can realize graded and successive filtration of impurities of different particle sizes, the filtration is more sufficient, the impurity trapping pressure is also shared by each layer, the effective working time is longer, the service life is longer, and the overall processing efficiency is higher.
[0047] Further, the upper end surface of the support plate 110 is provided with a sealing gasket, and the lower end surface 122 of the filter core housing 120 is connected to the upper end surface of the sealing gasket. By arranging the sealing gasket between the support plate 110 and the lower end surface 122 of the filter core housing 120, the fluid can be prevented from flowing into the second space 102 without being filtered by the filter core structure 130.
[0048] Specifically, the inner side of the support plate 110 is formed with a rectangular window, and the lower end surface 122 of the filter core housing 120 is configured in a rectangular shape and can cover the outer side of the rectangular window.
[0049] It should be understood that the connection path of the rectangular window and the filter core housing 120 and the first space 101 includes two paths, the first path is from the upper end surface 121 of the filter core housing 120 through the plurality of filter core structures 130 into the lower end surface 122, and the second path is horizontally extending from the lower end surface 122 of the filter core housing 120 to the first space 101, but the second path is blocked by the sealing gasket, therefore, the fluid medium can only enter the first space 101 from the first path into the second space 102.
[0050] In combination with Figure 4 and Figure 5 As shown in the drawings, the pair of first side surfaces 123 of the filter core housing 120 are provided with inwardly recessed extension structures 123a, specifically, the extension structures 123a are inwardly recessed areas of the plate material, and the recessed areas are configured in a rectangular shape.
[0051] In combination with Figure 6 As shown in the drawings, the filter cavities 123b are formed above and below the extension structures 123a, and the cross-sectional shape of the filter cavities 123b is rectangular.
[0052] Further, in order to facilitate the installation and removal of the filter core structure 130, the pair of second side surfaces 124 of the filter core housing 120 are provided with open slots corresponding to the height of the filter cavities 123b. The filter core structure 130 can be put into or taken out of the filter cavities 123b through the open slots.
[0053] Specifically, when the filter core structure 130 needs to be put into the filter cavities 123b, it can be directly inserted into the open slot; when the filter core structure 130 needs to be taken out of the filter cavities 123b, one side of the filter core structure 130 is pressed to make it separate from the other side of the filter cavities 123b.
[0054] In combination with Figure 6 As shown in the drawings, the settlement spaces 123c are arranged in the two filter cavities 123b adjacent to each other, and the height of the settlement spaces 123c is 50±20mm. The settlement spaces 123c not only can temporarily store the filtered solution, but also are beneficial to the settlement of the solution, so that the filtration is more sufficient.
[0055] Specifically, the thickness of the filter element structure 130 is the same as the height of the filter chamber 123b, and the height of the filter chamber 123b is the same as the height of the open groove. In this way, fluid will not enter the settling space 123c through the gaps between the filter element structure 130 and the filter chamber 123b.
[0056] It should be understood that the structural surface of the filter element structure 130 exposed on the open groove side can also play a filtering role, and the filtering capacity of the side of the filter element structure 130 is less than that of the front side.
[0057] Furthermore, the height of the filter housing 120 is less than the height of the first space 101. That is, the solution entering the first space 101 can be filtered from the upper end face 121 of the filter housing 120 before reaching the top of the first space 101.
[0058] In the above embodiments, combined with Figure 3 and Figure 4 As shown, the top of the box 100 is provided with a cover plate 114, and the cover plate 114 is sealed to the box by a sealing ring 115.
[0059] In this way, the airtightness of the housing 100 can be guaranteed. Specifically, a handle 116 is provided above the cover plate 114. The cover plate 114 and the housing 100 are connected by a positioning pin to prevent air pressure from lifting the cover plate 114 and causing leakage. The cover plate 114 is only opened when it is necessary to remove the filter element structure 130, so that the filter element structure 130 can be removed from the top of the housing 100.
[0060] Specifically, after removal, tools (such as a vacuum cleaner) can be used to clean the impurities on the surface of the support plate 110.
[0061] After removing the filter housing 120, clean the surface of the filter housing 120 and replace it with a new filter structure 130 or clean the old filter structure 130 and then reinstall it.
[0062] Fluid circulation system
[0063] Combination Figure 2 As shown, the second aspect of this utility model proposes a technical solution, a fluid circulation system, comprising:
[0064] The aforementioned graded filtration device for surface treatment fluids;
[0065] 200 fluid processing equipment;
[0066] The first pipe has its first end connected to the drain end of the fluid processing equipment and its second end connected to the inlet pipe 112 of the housing 100.
[0067] The second pipe has its first end connected to the liquid outlet pipe 113 of the housing 100, and its second end connected to the water inlet of the fluid processing equipment.
[0068] A circulating pump 300 is connected to the second pipe;
[0069] The tank 100 stores fluid medium for the fluid processing device 200, and the fluid medium is pumped to the fluid processing device 200 by the circulating pump 300, so that the fluid medium circulates between the fluid processing device 200 and the tank 100, and is filtered by the plurality of filter core structures 130 in the filter core housing 120.
[0070] Optionally, the fluid processing device 200 is a water jet, an anodic oxidation, a micro-arc oxidation, an electrolysis and an electrolyte plasma polishing device.
[0071] It can be understood that the above-mentioned grading filter device for surface treatment fluid integrates solution filtering function and solution storage function, greatly saves equipment space, improves equipment space utilization, is convenient to integrate with the fluid processing device, and adopts a split type design of tank combination and filter core combination inside the device, so that the filter core is convenient to disassemble and replace.
[0072] In combination with the above embodiments, the filter device is composed of a tank and a plurality of filter cores in the tank. Since the filter device is not connected in series to the pipe, the cross-sectional size of the filter core is larger. Through the arrangement of the plurality of filter cores, the filtering capacity of the filter device is greatly improved, the filter core replacement time is prolonged, frequent production interruption is avoided, and during solution filtering, the fluid can flow through the filter core under the action of fluid power, gravity and gas pressure. The pumping pressure of the circulating pump can be reduced, the filtering efficiency of the filter core is improved, and the filter device integrates solution filtering function and solution storage function, greatly saves equipment space, and improves equipment space utilization.
[0073] Although the utility model has disclosed as above with preferred embodiments, it is not used to limit the utility model. Those skilled in the art without departing from the spirit and scope of the utility model can make various changes and decorations. Therefore, the protection scope of the utility model is defined by the claims.
Claims
1. A staged filtration device for surface treating fluids, characterized by, include: A housing (100) has a support plate (110) connected to its inner wall, an inlet pipe (112) connected to the top of the housing (100), and an outlet pipe (113) connected to the bottom of the housing (100). The filter housing (120) is connected above the support plate (110), forming a first space (101) above the support plate (110) and a second space (102) below the support plate (110). A plurality of filter chambers (123b) for accommodating filter elements are formed inside the filter housing (120). Multiple filter element structures (130), each of the filter element structures (130) being detachably connected to a filter chamber (123b) within the filter element housing (120); The filter housing (120) has through holes on its upper end face (121) and lower end face (122). The upper end face of the filter housing (120) is exposed in the first space (101), and the lower end face of the filter housing (120) is exposed in the second space (102). Fluid in the first space (101) can pass through multiple filter structures (130) in sequence to reach the second space (102).
2. The staged filtration device for surface treatment fluid of claim 1, wherein, The upper end face of the support plate (110) is provided with a sealing gasket, and the lower end face (122) of the filter element housing (120) is connected to the upper end face of the sealing gasket.
3. A staged filtration device for surface treatment fluid according to claim 2, characterised in that, A rectangular window is formed on the inner side of the support plate (110), and the lower end face (122) of the filter housing (120) is constructed as a rectangle, and the lower end face (122) can cover the outer side of the rectangular window.
4. The staged filtration device for surface treatment fluid of claim 1, wherein, The filter housing (120) has a pair of first side surfaces (123) with inwardly recessed extension structures (123a), and the filter chamber (123b) is formed above and below the extension structures (123a). The filter housing (120) has a pair of second side surfaces (124) with open slots corresponding to the height of the filter chamber (123b), so that the filter structure (130) can be inserted into or removed from the filter chamber (123b) through the open slots.
5. A staged filtration device for surface treatment fluid according to claim 4, wherein, The thickness of the filter element structure (130) is the same as the height of the filter chamber (123b), and the height of the filter chamber (123b) is the same as the height of the open slot.
6. The staged filtration device for surface treatment fluid of claim 4, wherein, Settling spaces (123c) are provided in the two adjacent filter chambers (123b), and the height of the settling spaces (123c) is 50±20mm.
7. The staged filtration device for surface treatment fluid of claim 1, wherein, The filter housing (120) is provided with three filter chambers (123b). The first filter structure, the second filter structure and the third filter structure are arranged in the three filter chambers (123b) from top to bottom. The pore size of the first filter structure, the second filter structure and the third filter structure gradually decreases.
8. A staged filtration device for surface treatment fluid according to any one of claims 1-7, characterized in that, The height of the filter housing (120) is less than the height of the first space (101).
9. A staged filtration device for surface treatment fluid according to any one of claims 1-7, characterized in that, The top of the box (100) is provided with a cover plate (114), and the cover plate (114) is sealed to the box by a sealing ring (115).
10. A fluid circulation system characterized by, include: A graded filtration device for surface treatment fluids according to any one of claims 1-9; Fluid processing equipment (200); a first pipe, a first end of which is connected to a water outlet end of the fluid processing device, and a second end of which is connected to a liquid inlet pipe (112) of the tank (100); a second pipe, a first end of which is connected to a liquid outlet pipe (113) of the tank (100), and a second end of which is connected to a water inlet end of the fluid processing device; a circulating pump (300) connected to the second pipe; wherein the tank (100) stores fluid medium for the fluid processing device (200), the fluid medium is pumped to the fluid processing device (200) by the circulating pump (300), so that the fluid medium circulates between the fluid processing device (200) and the tank (100), and the fluid medium is filtered by the plurality of filter core structures (130) in the filter core shell (120).