Multi-stage filter element structure for filtering water body

Abstract

The utility model discloses a multistage filter element structure for filtering water, which relates to the field of mobile phones and comprises a plurality of element shells, and filter materials are placed in the element shells. The water inlet is formed in one end of the core body shell and used for introducing water into the core body shell; the water outlet is formed in the side wall of the core shell, and water is discharged from the water outlet after passing through the filter material; the precipitation cavity is located at the bottom of the core shell and communicated with the water inlet side of the filter material so as to collect impurities in the water body. The precipitation cavity is formed in the end, far away from the water inlet, of the core body and communicated with the metal side of the metal net, and metal, stone and other particle impurities in water enter the water inlet side along with water flow and then sink into the precipitation cavity to be independently precipitated and collected under the action of the self gravity of the water flow and the particle impurities. Particle impurities basically do not pierce or pierce the metal net.

Description

Technical Field

[0001] This utility model relates to the field of multi-stage filter cartridge structures, specifically a multi-stage filter cartridge structure for water filtration. Background Technology

[0002] Water filter cartridges, as the core components used in water purifiers, remove large particulate impurities such as iron sand, pebbles, or insect eggs from the water, as well as chemicals, discoloration, odors, and fine impurities. Filter cartridges are commonly made of PP, compressed activated carbon (CTO), granular activated carbon (UDF), and RO reverse osmosis.

[0003] Most current water filter cartridges are cylindrical in shape, as shown in the instruction manual. Figure 6 and attached Figure 7 As shown, a metal mesh is installed on the water inlet side of the filter cartridge to intercept large particles of impurities. A drain outlet is also installed on the water inlet side to discharge wastewater and particulate impurities during filtration. However, because the metal mesh is located at the water inlet, the intercepted impurities will accumulate inside the metal mesh. Furthermore, the particles intercepted by the metal mesh will be carried by the water flow and act on the metal mesh under the impact of the water flow. After prolonged use, this may cause the metal mesh to become clogged, and even metal or stone particles may puncture the metal mesh, resulting in a decrease in the interception effect of the metal mesh. Utility Model Content

[0004] The purpose of this invention is to provide a multi-stage filter element structure for water filtration to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a multi-stage filter element structure for water filtration, comprising:

[0006] Multiple core housings, with filter media placed inside the core housings;

[0007] The inlet and outlet are located at one end of the core shell and are used to introduce water into the core shell. The outlet is located on the side wall of the core shell and is used to discharge water after it passes through the filter media.

[0008] The sedimentation chamber, located at the bottom of the core shell, is connected to the water inlet side of the filter media to collect impurities in the water.

[0009] Preferably, the multiple core shells include a primary core, a secondary core, and a tertiary core, with the three cores connected together in sequence.

[0010] Preferably, a cylindrical metal mesh is installed inside the primary core, and PP cotton filter media is placed on the outside of the metal mesh. The PP cotton filter media and the metal mesh are coaxially arranged, and the axes of the two are located on the extension line of the inlet axis.

[0011] The sedimentation chamber is connected to the cylindrical inner cavity of the metal mesh.

[0012] Preferably, a hollow UDF activated carbon filter material is placed inside the secondary core, and the hollow part of the UDF activated carbon filter material is connected to the water inlet of the secondary core, and the sedimentation chamber is connected to the hollow part of the UDF activated carbon filter material.

[0013] Preferably, the interior of the three-stage core is equipped with hollow CTO compressed activated carbon filter media. The hollow part of the CTO compressed activated carbon filter media is connected to the water inlet of the three-stage core, and the sedimentation chamber is connected to the hollow part of the CTO compressed activated carbon filter media.

[0014] Preferably, the outer shells of the primary core, secondary core, and tertiary core all include an upper shell, a middle shell, and a bottom shell, with the two ends of the middle shell respectively connected to the upper shell and the bottom shell by threads;

[0015] The water inlet is located in the middle of the upper shell, and the water outlet is located on the side of the upper shell.

[0016] The sedimentation chamber is located in the bottom shell.

[0017] Preferably, a connecting ring is fixedly installed at the bottom of the metal mesh, and the connecting ring is fixedly connected to the inner sidewall of the open end of the bottom shell.

[0018] Preferably, support rings are fixedly installed on the inner sidewalls of the bottom shell openings of both the secondary and tertiary cores, and the support rings support the core material.

[0019] Preferably, a drain outlet is provided on the bottom shell, which is connected to the sedimentation chamber for discharging waste liquid and sediment from the sedimentation chamber.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This invention features a sedimentation chamber at the end of the core away from the water inlet. The sedimentation chamber is connected to the metal side of the metal mesh. Metal, stone and other particulate impurities in the water enter the water inlet with the water flow and then sink into the sedimentation chamber for separate sedimentation and collection under the action of the water flow and the gravity of the particulate impurities themselves. The particulate impurities will basically not puncture or penetrate the metal mesh.

[0022] At the same time, the sedimentation chamber is also connected to the water inlet side of the filter media on the core. Impurities blocked by the core will also settle directly into the sedimentation chamber. During long-term use, this can prevent the water inlet side of the core from becoming clogged due to the high concentration of impurities on the water inlet side. Attached Figure Description

[0023] Figure 1 This is a structural diagram of the multi-stage filter element of this utility model;

[0024] Figure 2 This is a diagram illustrating the primary core of this utility model.

[0025] Figure 3 This is a cross-sectional view of the primary core of this utility model;

[0026] Figure 4 Other core cross-sectional views of this utility model;

[0027] Figure 5 This is a schematic diagram illustrating the settling of particulate impurities according to this utility model.

[0028] Figure 6 This is a prior art structural diagram of the present utility model;

[0029] Figure 7 This is a cross-sectional view of the prior art of this utility model.

[0030] In the diagram: 1. Primary core; 2. Upper shell; 3. Inlet; 4. Pipe; 5. Drain; 6. Secondary core; 7. Tertiary core; 8. Outlet; 9. Metal mesh; 91. Connecting ring; 10. PP cotton filter media; 11. Support ring; 12. Sedimentation chamber. Detailed Implementation

[0031] 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.

[0032] Please refer to the figure. This embodiment discloses a multi-stage filter element structure for water filtration, such as... Figure 1 As shown, the structure includes a primary core 1, a secondary core 6, and a tertiary core 7 connected in sequence by a pipe 4.

[0033] The three core shells, namely primary core 1, secondary core 6, and tertiary core 7, have the same structure. The filter media for filtering water is placed inside the core shell.

[0034] The core shell consists of an upper shell 2, a middle shell, and a bottom shell. The upper shell 2 is threadedly connected to the upper end of the middle shell, and the bottom shell is threadedly connected to the bottom of the middle shell. The upper shell 2, the middle shell, and the bottom shell together form a complete core shell structure, as shown below. Figures 1-4 As shown.

[0035] A water inlet 3 is provided at the middle of the upper end of the upper shell 2. The water inlet 3 is located at the highest point of the entire core shell and is connected to the interior of the core shell. Figure 3 and Figure 4 As shown. A water outlet 8 is provided on one side of the upper shell 2. The water outlet 8 is used to drain the water that has passed through the filter material to the outside.

[0036] In this embodiment, a sedimentation chamber 12 is also provided. The sedimentation chamber 12 is located in the bottom shell and is connected to the inner cavity of the middle shell. At the same time, the sedimentation chamber 12 is also connected to the water inlet side of the filter media. The particles and impurities that accumulate on the water inlet side of the filter media will settle into the sedimentation chamber 12 under their own gravity.

[0037] The filter media arrangement in primary core 1, secondary core 6, and tertiary core 7 is as follows:

[0038] The primary core 1 contains a hollow cylindrical metal mesh 9. The metal mesh 9 can be a woven metal mesh, a sintered metal mesh, or a multi-layered metal mesh. The frame of the metal mesh 9 is made of aluminum alloy or 304 stainless steel. The metal mesh 9 can filter out large particles such as metal particles, pebbles, or insect eggs from the water, performing preliminary and pre-filtration. A connecting ring 91 is fixedly installed at the bottom of the metal mesh 9, and is fixedly connected to the inner wall of the open end of the bottom shell. The connecting ring 91 is made of aluminum alloy or stainless steel. The connecting ring 91 closes the open side of the bottom shell, allowing the sedimentation chamber 12 to communicate only with the inner cavity of the metal mesh 9.

[0039] In this embodiment, the metal mesh 9 is only used to filter solid particulate impurities, and it is prone to clogging. Therefore, the metal mesh 9 generally does not need to be replaced; it only needs to be disassembled and cleaned. During cleaning, rotate the bottom shell to detach it from the middle shell, and the metal mesh 9 can be removed together for cleaning. The metal mesh 9 is installed and disassembled independently. Compared to existing integrated filter cartridges where the metal mesh 9 is fixed to the filter media, making disassembly and cleaning inconvenient, this design makes cleaning the metal mesh 9 much easier.

[0040] A PP cotton filter material 10 is provided on the outer side of the metal mesh 9, such as... Figure 3 As shown. The PP cotton filter media 10 also has a cylindrical cavity structure. The metal mesh 9 and the PP cotton filter media 10 are coaxially arranged, and their axes, the extension line of the inlet axis, and the axis of the outlet are on the same straight line.

[0041] When the bottom shell is installed on the middle shell, the connecting ring 91 provides an upward force to the PP cotton filter material 10, fixing the PP cotton filter material 10 in the core shell. Moreover, the PP cotton filter material 10 is located on the outside of the metal mesh 9, forming a wrap around the metal mesh 9.

[0042] The water inlet of the primary core 1 is connected to an external water pipe. Water requiring filtration enters the cylindrical cavity of the metal mesh 9 inside the primary core 1 through the inlet 3. Under water pressure, the water flows outwards, passing through the metal mesh 9 and the PP cotton filter media 10, and exits through the outlet 8 of the primary core 1. Since the sedimentation chamber 12 is connected to the cylindrical cavity of the metal mesh 9 and is located at the bottom, after the water enters through the inlet 3, it... Figure 5 As shown by the middle arrow, particulate impurities in the water flow downwards with the water flow. The water is discharged after passing through the metal mesh 9 and the PP cotton filter media 10. The particulate impurities blocked by the metal mesh 9 will enter the sedimentation chamber 12 under the action of water flow inertia and their own gravity, so as to facilitate the collection of particulate impurities. Moreover, the impurities in the metal mesh 9 are subject to the inertial force (or flow thrust) of the water flow and their own gravity, which can quickly settle into the sedimentation chamber 12. Particulate impurities will hardly cause blockage of the metal mesh 9.

[0043] Please refer to Figure 4 As understood, the secondary core 6 contains UDF activated carbon filter media, which is a hollow cylindrical structure. The hollow part of the UDF activated carbon filter media is connected to the inlet of the secondary core 6, and the sedimentation chamber 12 is also connected to the hollow part of the UDF activated carbon filter media. The inlet of the secondary core 6 is connected to the outlet of the primary core 1 through pipe 4. Water filtered by the primary core 1 enters the secondary core 6 for secondary filtration. Water requiring secondary filtration enters the hollow part of the UDF activated carbon filter media, passes through the UDF activated carbon filter media, and is discharged from the outlet of the secondary core 6. Small particulate impurities trapped in the hollow part of the UDF activated carbon filter media will settle into the sedimentation chamber 12, the principle of which is the same as that of the primary core, and will not be elaborated here.

[0044] The inlet of the third-stage core 7 is connected to the outlet of the second-stage core 6. The outlet of the third-stage core 7 is connected to a drain pipe for discharging the filtered water to the outside. The interior of the third-stage core 7 contains CTO compressed activated carbon filter media. The CTO compressed activated carbon filter media is designed as a cylindrical cavity (or hollow) structure. The hollow part of the CTO compressed activated carbon filter media is connected to the inlet of the third-stage core 7. The sedimentation chamber 12 is connected to the hollow part of the CTO compressed activated carbon filter media.

[0045] Water filtered by the secondary core 6 enters the tertiary core 7 for a third filtration. The water requiring a third filtration enters the hollow part of the CTO compressed activated carbon filter media. The water passes through the CTO compressed activated carbon filter media and is discharged from the outlet of the tertiary core 7. Impurities blocked in the hollow part of the CTO compressed activated carbon filter media will settle into the sedimentation chamber 12. The principle is the same as that of the primary core and will not be elaborated here.

[0046] Based on the above embodiments, since the sedimentation chamber is connected to the water inlet side of the filter media, impurities blocked by the core will also directly settle into the sedimentation chamber, which can reduce the concentration of impurities on the water inlet side to a certain extent. Compared with existing filter media that do not have a drain outlet or have the drain outlet on the water inlet side, where blocked impurities settle or accumulate inside the filter media on the water inlet side, easily causing blockage on the water inlet side of the filter media, the impurities in this design settle directly into the sedimentation chamber. During long-term use, this can reduce or even avoid the situation where the water inlet side of the core is easily blocked due to the high concentration of impurities on the water inlet side.

[0047] In this embodiment, the UDF activated carbon filter material and the CTO compressed activated carbon filter material used are both cylindrical structures with a diameter of 10cm. Their manufacturing methods are the same as those of existing granular activated carbon filter elements and compressed activated carbon filter elements. The only difference is that the UDF activated carbon filter material and the CTO compressed activated carbon filter material are made into cylindrical structures with openings at both ends.

[0048] Specifically, in this embodiment, such as Figure 4 As shown, support rings 11 are fixedly installed on the inner sidewalls of the bottom shell openings of both the secondary core 6 and the tertiary core 7. A sedimentation chamber 12 is formed between the support rings 11 and the bottom shell, and a through hole communicating with the hollow portion of the CTO compressed activated carbon filter material and / or the UDF activated carbon filter material is opened at the center of the support rings 11. When the bottom shell is installed on the middle shell, it supports the CTO compressed activated carbon filter material and / or the UDF activated carbon filter material.

[0049] In this embodiment, each of the three core bodies has a drain port 5 on its bottom shell. The drain port is connected to the sedimentation chamber 12. A valve is installed on the drain port 5. When the valve is open, the drain port is open, allowing the waste liquid, sediment, and impurities in the sedimentation chamber 12 to be discharged. When the drain port 5 is opened, the water entering the core body flows downward from the hollow part of the metal mesh 9 or the filter media (CTO compressed activated carbon filter media and / or UDF activated carbon filter media). The direction of the flow is perpendicular to the direction of the water flow through the filter media. That is, when the water flows to the drain port 5, it can flush the hollow sidewalls of the filter media (CTO compressed activated carbon filter media and / or UDF activated carbon filter media), flushing away some of the impurities adhering to the sidewalls of the filter media (CTO compressed activated carbon filter media and / or UDF activated carbon filter media) or the metal mesh 9. This has a certain flushing and cleaning effect on the water inlet side of the filter media (CTO compressed activated carbon filter media and / or UDF activated carbon filter media) or the metal mesh 9.

[0050] In a further embodiment, the drain outlet of the three-stage core 7 can also be connected to the RO reverse osmosis filter cartridge, and connected to the inlet of the RO reverse osmosis filter cartridge. The drain outlet of the RO reverse osmosis filter cartridge directly discharges drinking water. The RO reverse osmosis filter cartridge is a commonly used filter cartridge in existing water filtration, and is the same as existing technology, so it will not be described in detail here. When connecting the RO reverse osmosis filter cartridge, pressure is provided by an external water pump or water pipe: when purifying household water, the household tap water has pressure, which can provide pressure for the RO reverse osmosis filter cartridge. When used outdoors, its pressure is provided by an external water pump.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage filter cartridge structure for water filtration, characterized in that, The utility model relates to a filter device for water purification, comprising: a plurality of core housings, the inside of the core housings being provided with filter materials; a water inlet and a water outlet, the water inlet being formed at one end of the core housing for water to be introduced into the inside of the core housing; the water outlet being formed at the side wall of the core housing, water being discharged from the water outlet after being filtered by the filter materials; a sediment chamber being located at the bottom of the core housing and being in communication with the water inlet side of the filter materials to collect impurities in the water.

2. The multi-stage filter element structure for filtering a water body according to claim 1, characterized in that: The plurality of core housings comprises a first-stage core, a second-stage core and a third-stage core, the three cores being connected together in sequence.

3. The multi-stage filter cartridge structure for filtering a water body according to claim 2, characterized in that: The inside of the first-stage core is provided with a cylindrical metal mesh, the outside of the metal mesh being provided with PP cotton filter materials, the PP cotton filter materials being coaxially arranged with the metal mesh, and the axes of the two being located on the extension line of the water inlet axis. The sediment chamber is in communication with the cylindrical inner cavity of the metal mesh.

4. The multi-stage filter cartridge structure for filtering a water body according to claim 3, characterized in that: The inside of the second-stage core is provided with a hollow UDF activated carbon filter material, the hollow part of the UDF activated carbon filter material being in communication with the water inlet of the second-stage core, and the sediment chamber being in communication with the hollow part of the UDF activated carbon filter material.

5. The multi-stage filter cartridge structure for filtering a water body according to claim 4, characterized in that: The inside of the third-stage core is provided with a hollow CTO compressed activated carbon filter material, the hollow part of the CTO compressed activated carbon filter material being in communication with the water inlet of the third-stage core, and the sediment chamber being in communication with the hollow part of the CTO compressed activated carbon filter material.

6. The multi-stage filter cartridge structure for filtering a water body according to claim 2, characterized in that: The housings of the first-stage core, the second-stage core and the third-stage core each comprise an upper shell, a middle shell and a bottom shell, the two ends of the middle shell being threadedly connected together with the upper shell and the bottom shell respectively. The water inlet is arranged at the middle position of the upper shell, and the water outlet is located at the side of the upper shell. The sediment chamber is located in the bottom shell.

7. The multi-stage filter cartridge structure for filtering a water body according to claim 3, characterized in that: The bottom of the metal mesh is fixedly provided with a connecting ring, the connecting ring being fixedly connected with the inner side wall of the open end of the bottom shell.

8. The multi-stage filter cartridge structure for filtering a water body according to claim 5, characterized in that: The inner side wall of the open end of the bottom shell of the second-stage core and the third-stage core is fixedly provided with a supporting ring, the supporting ring supporting the core materials.

9. The multi-stage filter cartridge structure for filtering a water body according to claim 6, characterized in that: A sewage outlet is formed in the bottom shell, the sewage outlet being in communication with the sediment chamber and being used for discharging waste liquid and sediment in the sediment chamber.

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