Filter

Abstract

A filter comprises two stages of filtering assemblies, filtrate is adsorbed through the first filtering assembly, solid impurities in the filtrate are intercepted through the second filtering assembly, impurities such as metal ions, suspended solids, colloids and microorganisms in water are effectively removed, and cleanliness of water is guaranteed. Particularly, the removal effect on tiny particles (such as viruses, bacteria and the like) is better than that of traditional physical filtration.

Description

Technical Field

[0001] This utility model belongs to the field of water filtration, and specifically relates to a filter. Background Technology

[0002] Water purification is a crucial issue in modern industrial production and daily life. Industries such as biopharmaceuticals, food and beverage, and semiconductors have particularly high standards for water quality. These industries typically employ water filtration to purify water resources; specifically, capsule filters are a commonly used method.

[0003] In industries such as biopharmaceuticals, food and beverage, and semiconductors, filtrate filtration typically involves two steps. First, resin ions or activated carbon particles are used to remove metal ions, odors, discoloration, suspended solids, and other impurities from the filtrate. Then, the treated filtrate is filtered through a capsule filter made of high-precision membranes (such as PP, PES, MCE, etc.) to complete the filtration process. Existing filtration technologies have the following problems:

[0004] (1) Existing capsule filters cannot remove impurities such as odor, discoloration, and metal ions from water.

[0005] (2) Existing technologies require two-step filtering, which is cumbersome to operate and has high maintenance costs. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies, the purpose of this utility model is to provide a filter. To achieve the above objective, the technical solution adopted by this utility model is as follows:

[0007] This utility model provides a filter, including an inlet cover, an outlet cover, and a filter assembly. The inlet cover and the outlet cover are respectively disposed at both ends of the filter assembly. The filter assembly includes a first filter assembly and a second filter assembly. The filtrate enters the filter assembly from the inlet cover, is filtered by the first filter assembly and the second filter assembly in sequence, and is discharged from the outlet cover.

[0008] Optionally, the first filter assembly includes a receiving space formed by a first housing, a first baffle, and a second baffle. The first baffle and the second baffle are arranged opposite to each other. A first filter medium is disposed in the receiving space. The filtrate enters the receiving space from the inlet cover through the first baffle, is filtered by the first filter medium, and then enters the second filter assembly through the second baffle.

[0009] Optionally, the first filter medium is a particulate filter.

[0010] Optionally, the first filter assembly further includes a first screen and a second screen, wherein the first screen covers the side of the first baffle facing the second baffle, and the second screen covers the side of the second baffle facing the first baffle.

[0011] Optionally, the first baffle and the second baffle are respectively provided with through holes.

[0012] Optionally, the outer periphery of the first baffle is provided with a first arc protrusion, the outer periphery of the second baffle is provided with a second arc protrusion, the inner wall of the first shell is provided with a first arc groove and a second arc groove, the first arc protrusion and the first arc groove are interference-fitted to fix the first baffle to the first shell, and the second arc protrusion and the second arc groove are interference-fitted to fix the second baffle to the first shell.

[0013] Optionally, the second filter assembly includes a second housing and a folded filter assembly fixed to the second housing.

[0014] Optionally, the liquid inlet cap is connected to the first outer shell, and the liquid outlet cap is connected to the second outer shell.

[0015] Optionally, the liquid inlet cover is provided with a first vent valve port, and the liquid outlet cover is provided with a second vent valve port.

[0016] Optionally, the liquid inlet cover is provided with a first leg, and the liquid outlet cover is provided with a second leg.

[0017] The filter of this invention comprises two stages of filtration components. The first filtration component adsorbs the filtrate, while the second filtration component intercepts solid impurities in the filtrate. This effectively removes impurities such as metal ions, suspended solids, colloids, and microorganisms from the water, ensuring water cleanliness. In particular, its removal effect on tiny particulate matter (such as viruses and bacteria) is superior to traditional physical filtration. The filter of this invention has a simple and compact structure, which is conducive to large-scale application. This filter not only effectively removes solid impurities but also does not produce secondary pollution, reducing treatment costs. This filter can be applied not only to industries such as semiconductors, biopharmaceuticals, and food and beverage, but also to other industries requiring high water quality, such as electronics, chemicals, and environmental protection, demonstrating broad application prospects. Attached Figure Description

[0018] After reading the detailed embodiments of this utility model with reference to the accompanying drawings, the reader will gain a clearer understanding of all aspects of this utility model. Among them,

[0019] Figure 1 This is a structural diagram of a filter according to an embodiment of the present invention;

[0020] Figure 2 This is a structural diagram of the first filter assembly and liquid inlet cover according to an embodiment of the present invention;

[0021] Figure 3 This is a structural diagram of the second filter assembly and liquid outlet cover according to an embodiment of the present invention;

[0022] Figure 4 This is a front view of the first baffle structure according to an embodiment of the present invention;

[0023] Figure 5 This is a top view of the first baffle structure according to an embodiment of the present invention;

[0024] Figure 6 This is a first outer shell structure diagram of another embodiment of the present utility model;

[0025] Explanation of reference numerals in the attached figures:

[0026] 1: Liquid inlet cap; 2: Liquid outlet cap; 3: First filter assembly; 4: Second filter assembly;

[0027] 11: Liquid inlet; 12: First vent valve port; 13: First support leg;

[0028] 21: Liquid outlet; 22: Second vent valve port; 23: Second support leg; 24: Welding ring;

[0029] 31: First outer casing; 32: First baffle; 33: Second baffle; 34: First filter medium; 35: First screen; 36: Second screen;

[0030] 311: First arc groove; 312: Second arc groove; 313: First welding surface; 314: Second welding surface;

[0031] 321: First through-hole assembly; 322: First arc protrusion; 323: First straight segment;

[0032] 331: Second through-hole assembly; 332: Second arc protrusion; 333: Second straight segment;

[0033] 41: Second outer shell; 42: Folded filter assembly; 43: Filtrate channel. Detailed Implementation

[0034] To make the technical content disclosed in this application more detailed and complete, reference can be made to the accompanying drawings and the following specific embodiments of this utility model. However, those skilled in the art should understand that the embodiments provided below are not intended to limit the scope of this utility model. Furthermore, the drawings are for illustrative purposes only and are not drawn to their original dimensions.

[0035] The term "connection" in this specification includes both direct and indirect connections. The terms "several" and "more than" refer to two or more entities. The terms "first," "second," and "third" in the specification, claims, and accompanying drawings also apply.

[0036] The use of terms such as "fourth" (if present) is to distinguish similar objects and is not necessarily used to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0037] The technical solution of this utility model will be described in detail below. The following embodiments can be combined with each other. The same or similar concepts or processes may not be described again in some embodiments.

[0038] Example 1:

[0039] This embodiment provides a filter for water filtration. Please refer to [link / reference]. Figure 1 The filter includes an inlet cap 1, an outlet cap 2, and a filter assembly. The inlet cap 1 and outlet cap 2 are respectively located at both ends of the filter assembly. The filter assembly includes a first filter assembly 3 and a second filter assembly 4. Specifically, the inlet cap 1 is fixed to the first filter assembly 3, and the outlet cap 2 is fixed to the second filter assembly 4. The filtrate enters the filter assembly through the inlet cap 1, is filtered sequentially by the first filter assembly 3 and the second filter assembly 4, and is discharged through the outlet cap 2. Specifically, the first filter assembly 3 effectively adsorbs metal ions and fine particulate matter in the water, removing odors and discoloration; the second filter assembly 4 intercepts bacteria and viruses. In the prior art, two independent filters are used to filter metal ions, fine particulate matter, and bacteria and viruses in the water separately. When the filtrate filtered by the first filter enters the second filter, secondary pollution can occur. The filter described in this embodiment integrates the two-stage filtration, which not only effectively removes solid impurities but also avoids secondary pollution, simplifies operation, and improves filtration efficiency.

[0040] In this embodiment, the filter adopts a modular design, and the first filter component 3 and the second filter component 4 can be used independently. In this embodiment, the first filter component 3 and the second filter component 4 form a two-stage filtration system. In other embodiments of this utility model, other multi-stage filtration systems can also be formed according to requirements. This design not only makes the filter structure simple and easy to maintain, but also facilitates large-scale application.

[0041] In this embodiment, the filter is made of corrosion-resistant and high-temperature-resistant materials, which enables the filter to work stably in various environments and improves the service life of the filter.

[0042] Example 2:

[0043] This embodiment provides a filter, specifically a capsule filter, for water filtration. Please refer to [link / reference]. Figure 1-6 The filter includes an inlet cap 1, an outlet cap 2, and a filter assembly. The inlet cap 1 and the outlet cap 2 are respectively located at both ends of the filter assembly. The filter assembly includes a first filter assembly 3 and a second filter assembly 4. Specifically, the inlet cap 1 is fixed to the first filter assembly 3, and the outlet cap 2 is fixed to the second filter assembly 4. The filtrate enters the filter assembly through the inlet cap 1, is filtered sequentially by the first filter assembly 3 and the second filter assembly 4, and is discharged through the outlet cap 2.

[0044] In this embodiment, the liquid inlet cover 1 is provided with a liquid inlet 11, a first vent valve 12, and a first support leg 13; the liquid outlet cover 2 is provided with a liquid outlet 21, a second vent valve 22, a second support leg 23, and a welding ring 24. The liquid inlet 11 is the channel for the filtrate to enter the filter, and the liquid outlet 21 is the channel for the filtrate to exit the filter. The first vent valve 12 and the second vent valve 22 are used to expel air from inside the filter during use, preventing air from entering downstream. Specifically, after the internal air is expelled, the first vent valve 12 and the second vent valve 22 are sealed by the vent valves to prevent the filtrate from flowing out. The first support leg 13 and the second support leg 23 are used to ensure that the filter can be placed stably on the workbench when it is placed horizontally, with the first vent valve 12 and the second vent valve 22 facing upwards.

[0045] Please see Figure 2In this embodiment, the first filter assembly 3 includes a first housing 31, a first baffle 32, a second baffle 33, a first filter medium 34, a first screen 35, and a second screen 36. The first baffle 32 and the second baffle 33 are arranged opposite to each other, forming a receiving space with the first housing 31. The first filter medium 34 is disposed within the receiving space. Specifically, the first filter medium 34 is a particulate filter, relying on the filter particles filled inside to remove impurities such as metal ions, odors, and discoloration from the filtrate. Specifically, the first screen 35 covers the side of the first baffle 32 facing the second baffle 33, and the second screen 36 covers the side of the second baffle 33 facing the first baffle 32. Specifically, the first screen 35 and the second screen 36 are made of small-pore plastic woven mesh or high-strength non-woven fabric to intercept tiny filter particles in the first filter medium 34, preventing these particles from entering the second filter assembly 4, reducing the filter efficiency, and shortening the filter's lifespan. For details, please refer to [link to relevant documentation]. Figure 4 , 56. The first baffle 32 is provided with a first through hole assembly 321 and a first arc protrusion 322; the second baffle 33 is provided with a second through hole assembly 331 and a second arc protrusion 332. In this embodiment, both the first through hole assembly 321 and the second through hole assembly 331 are fan-shaped through holes, used to allow the filtrate to enter the first filter assembly 3 from upstream for adsorption or ion exchange filtration, and then enter the second filter assembly 4; specifically, the first through hole assembly 321 is radially arranged with the central axis of the first baffle 32 as the center. The first housing 31 has a set of fan-shaped through holes, the outer diameter of which is the same as the inner diameter of the welded joint of the liquid inlet cover 1; the second through hole assembly 331 is a set of fan-shaped through holes arranged radially around the central axis of the second baffle 33, the outer diameter of which is the same as the inner diameter of the first housing 31. With this design, since the second baffle 33 and the housing 31 do not form a barrier, air can pass freely during use, thereby completely expelling the air in the liquid inlet cover 1 and the first filter assembly 3. Specifically, the outer periphery of the first baffle 32 is provided with a first arc protrusion 322, the outer periphery of the second baffle 33 is provided with a second arc protrusion 332, the inner wall of the first outer shell 31 is provided with a first arc groove 311 and a second arc groove 312, the first arc protrusion 322 and the first arc groove 311 are interference-fitted to fix the first baffle 32 to the first outer shell 31 and fix the first screen 35 to the first outer shell 31; the second arc protrusion 332 and the second arc groove 312 are interference-fitted to fix the second baffle 33 to the first outer shell 31 and fix the second screen 36 to the first outer shell 31. The first baffle 32 and the second baffle 33 adopt an arc-shaped protrusion design, which can effectively prevent stress concentration when the first screen 35 and the second screen 36 are clamped, thus avoiding tearing of the first screen 35 sandwiched between the first baffle 32 and the first outer shell 31, and the second screen 36 sandwiched between the second baffle 33 and the first outer shell 31. In this embodiment, a first straight segment 323 is provided between the first arc protrusion 322 and the first arc groove 311, and a second straight segment 333 is provided between the second arc protrusion 332 and the second arc groove 312. Since the diameter of the first straight segment 323 is smaller than the diameter of the first arc protrusion 322, and the diameter of the second straight segment 333 is smaller than the diameter of the second arc protrusion 332, axial displacement can be effectively avoided after the first baffle 32 and the second baffle 33 are installed. The end face joint of the first filter assembly 3 is completely sealed when it is welded to the liquid inlet cover 1 and the second filter assembly 4.

[0046] Please see Figure 3In this embodiment, the second filter assembly 4 includes a second housing 41, a folded filter assembly 42, and a filtrate channel 43. The folded filter assembly 42 is fixed to the second housing 41, and the filtrate channel 43 is disposed inside the second housing 41. Specifically, the folded filter assembly 42 includes a second filter medium, which is a high-precision filter membrane. The filter membrane filters the filtrate after it has been filtered by the first filter assembly 3, intercepting solid particles or bacteria and viruses in the filtrate.

[0047] In this embodiment, the inlet cap 1 is connected to the first outer shell 31, and the outlet cap 2 is connected to the second outer shell 41. The filtrate enters the containing space from the inlet 11 through the first baffle 32 and the first screen 35, is filtered by the first filter medium 34, and then enters the filtrate channel 43 of the second filter assembly 4 through the second screen 36 and the second baffle 33. After being filtered by the second filter medium, it is discharged from the outlet 21.

[0048] In this embodiment, the first outer shell 31 further includes a first welding surface 313 and a second welding surface 314, which are respectively used to weld to the liquid inlet cover 1 and the second filter assembly 4. Specifically, when the first baffle 32 is installed on the first outer shell 31, it forms the first welding surface 313 with one end of the outer shell 31. When the second baffle 33 is installed on the first outer shell 31, it forms the second welding surface 314 with the other end of the outer shell 31.

[0049] Example 3:

[0050] This embodiment describes the installation process of the filter described in Embodiment 2 to further illustrate the technical solution of this utility model. The installation steps of the filter are as follows:

[0051] (1) The first screen 35 covers the first baffle 32, and the first arc protrusion 322 of the first baffle 32 is installed in the first arc groove 311 of the first housing 31; the first filter medium 34 is filled into the first housing 31; the second screen 36 covers the second baffle 33, and the second arc protrusion 332 of the second baffle 33 is installed in the second arc groove 312 of the first housing 31, and the above are combined to form the first filter assembly 3. Among them, the first arc protrusion 322 and the first arc groove 311, and the second arc protrusion 332 and the second arc groove 312 are all installed with an interference fit, and the first screen 35 and the second screen 36 are both located on the side close to the first filter medium 34.

[0052] (2) The first filter assembly 3 and the liquid inlet cover 1 are welded together through the first welding surface 313.

[0053] (3) The folded filter assembly 42 and the liquid outlet cover 2 are welded together by the welding ring 24.

[0054] (4) Weld the second outer shell 41 to the liquid outlet cover 2 together.

[0055] (5) Weld the first filter assembly 3 and the second housing 41 together through the second welding surface 314. When welding, make sure that the first exhaust valve port 12 of the liquid inlet cover 1 and the second exhaust valve port 22 of the liquid outlet cover 2 are aligned to facilitate exhaust.

[0056] (6) Install the exhaust valves of the first exhaust valve port 12 and the second exhaust valve port 22.

[0057] Example 4:

[0058] This embodiment describes the usage process of the filter described in Embodiment 2 to further illustrate the technical solution of this utility model. The steps for using the filter are as follows:

[0059] (1) Place the filter on the workbench and connect the filter channel.

[0060] (2) Open the first exhaust valve port 12 and the second exhaust valve port 22, and the filtrate enters the interior of the filter through the liquid inlet 11 until the air inside the filter is completely emptied. Then close the first exhaust valve port 12 and the second exhaust valve port 22 through the exhaust valve to start filtration.

[0061] (3) The filtrate first passes through the first filter component 3 for first-stage filtration to remove impurities such as metal ions, odors, and discoloration from the filtrate.

[0062] (4) After the filtrate passes through the first stage of filtration, it enters the filtrate channel 43 and then passes through the folded filter assembly 42 for the second stage of filtration to intercept solid particles or bacteria and viruses in the filtrate.

[0063] (5) The filtrate after the second stage of filtration is discharged from the filter through the outlet 21 for use.

[0064] The filter of this invention comprises two stages of filtration components. The first filtration component adsorbs the filtrate, while the second filtration component intercepts solid impurities in the filtrate. This effectively removes impurities such as metal ions, suspended solids, colloids, and microorganisms from the water, ensuring water cleanliness. In particular, its removal effect on tiny particulate matter (such as viruses and bacteria) is superior to traditional physical filtration. The filter of this invention has a simple and compact structure, which is conducive to large-scale application. This filter not only effectively removes solid impurities but also does not produce secondary pollution, reducing treatment costs. This filter can be applied not only to industries such as semiconductors, biopharmaceuticals, and food and beverage, but also to other industries requiring high water quality, such as electronics, chemicals, and environmental protection, demonstrating broad application prospects.

[0065] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. The embodiments listed in this utility model cannot exhaustively describe all implementation methods. All obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model. All documents mentioned in this utility model are incorporated herein by reference as if they were individually incorporated by reference.

Claims

1. A filter, comprising an inlet cap, an outlet cap, and a filter assembly, wherein the inlet cap and the outlet cap are respectively disposed at both ends of the filter assembly, characterized in that, The filtration assembly includes a first filtration assembly and a second filtration assembly. The filtrate enters the filtration assembly from the inlet cover, is filtered sequentially by the first filtration assembly and the second filtration assembly, and is discharged from the outlet cover. The first filter assembly includes a receiving space formed by a first outer shell, a first baffle, and a second baffle. The first baffle and the second baffle are arranged opposite to each other. A first filter medium is disposed in the receiving space. The filtrate enters the receiving space from the inlet cover through the first baffle, and after being filtered by the first filter medium, it enters the second filter assembly through the second baffle. The second filter assembly includes a second housing and a folded filter assembly fixed to the second housing.

2. The filter according to claim 1, characterized in that, The first filter medium is a particulate filter.

3. The filter according to claim 2, characterized in that, The first filter assembly further includes a first screen and a second screen, wherein the first screen covers the side of the first baffle facing the second baffle, and the second screen covers the side of the second baffle facing the first baffle.

4. The filter according to claim 3, characterized in that, The first baffle and the second baffle are respectively provided with through holes.

5. The filter according to claim 1, characterized in that, The first baffle has a first arc protrusion on its outer periphery, and the second baffle has a second arc protrusion on its outer periphery. The inner wall of the first shell has a first arc groove and a second arc groove. The first arc protrusion and the first arc groove are interference-fitted to fix the first baffle to the first shell. The second arc protrusion and the second arc groove are interference-fitted to fix the second baffle to the first shell.

6. The filter according to claim 1, characterized in that, The liquid inlet cap is connected to the first outer shell, and the liquid outlet cap is connected to the second outer shell.

7. The filter according to claim 1, characterized in that, The liquid inlet cover is provided with a first vent valve port, and the liquid outlet cover is provided with a second vent valve port.

8. The filter according to claim 1, characterized in that, The liquid inlet cover is provided with a first leg, and the liquid outlet cover is provided with a second leg.

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