Activated carbon sticks for filtering water

Abstract

Provide activated carbon rods for filtering water. The activated carbon rod includes an activated carbon rod body 1, an axial through-hole 2 formed in the axial center of the activated carbon rod body, and a groove 3 formed on the outer surface of the activated carbon rod body. The activated carbon rod body of the present invention has both the groove and the axial through-hole, which forms a bidirectional turbulence passage in the water flow path and makes the filtration path complex, significantly improving the turbulence intensity of the filtrate, increasing the filtration surface area, reducing the risk of clogging and improving the impurity retention efficiency. It also has a relatively high initial water flow rate under a given operating pressure, and can maintain good turbidity removal effect even after the flow rate decreases.

Description

[Technical Field]

[0001] The present invention relates to an activated carbon rod for filtering water. [Background technology]

[0002] Filter rods are required in water purification devices such as water purifiers. A common type of filter rod is an activated carbon rod. Activated carbon rods have excellent physical adsorption capabilities (effectively adsorbing residual chlorine, odors, volatile organic compounds, etc.) and chemical adsorption capabilities (surface functional groups can react with certain heavy metals or organic compounds). While adsorbing residual chlorine and odors, activated carbon also retains beneficial minerals such as calcium and magnesium, making the water sweeter. At the same time, activated carbon rods are much cheaper than RO membrane modules or KDF (copper-zinc alloy filter media). They only require natural water flow and do not require a booster pump. Therefore, activated carbon rods are becoming increasingly popular as filter elements in water purification devices.

[0003] Currently, most of the widely used activated carbon rods have a cylindrical high-density extrusion structure, which has basic filtering function, but its surface area is limited, and the unit water flow rate is relatively low, so after a certain period of use, it is prone to clogging and the flux decreases rapidly. Especially under high turbidity or continuous load conditions, scale formation and particle deposition on the surface often cause unstable performance and require frequent replacement. Summary of the Invention [Problem to be solved by the invention]

[0004] In order to overcome the above-mentioned drawbacks of the conventional activated carbon rod for filtering water, the present invention provides an activated carbon rod for filtering water, which can improve the filtering performance. [Means for solving the problem]

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows: An activated carbon rod for filtering water, comprising an activated carbon rod body, an axial through-hole provided at the axial center of the activated carbon rod body, and a groove provided on the outer surface of the activated carbon rod body.

[0006] Furthermore, the activated carbon rod body has a cylindrical shape.

[0007] Furthermore, the grooves are arranged from top to bottom in the axial direction of the activated carbon rod body.

[0008] Furthermore, the groove spirally surrounds the activated carbon rod body from the top to the bottom of the activated carbon rod body.

[0009] Alternatively, there may be a plurality of grooves arranged at intervals on the activated carbon rod body.

[0010] When the grooves are plural and spaced apart on the activated carbon rod body, the grooves are annular grooves.

[0011] Furthermore, the annular grooves are uniformly arranged on the outer surface of the activated carbon rod body.

[0012] Furthermore, the vertical interval between the annular grooves is 0.5 cm to 1.5 cm, and the depth of the annular grooves is 0.5 cm to 1.5 cm.

[0013] Furthermore, the roughness of the wall surface of the groove is 25 to 35 Ra (μm). [Effects of the Invention]

[0014] The beneficial effects of this invention are as follows. First, the activated carbon rod body has both grooves and axial through-holes, forming bidirectional turbulence passages in the water flow path and creating a complex filtration path. This significantly improves the turbulence intensity of the filtered liquid, increases the filtration surface area, reduces the risk of clogging, and improves impurity retention efficiency. It also has a relatively high initial water flow rate under a given operating pressure and maintains good turbidity removal even after the flow rate decreases. Second, the groove surface has a microscopic roughness of 25-35 Ra (μm), which enhances turbulence of the liquid and contributes to delaying impurity deposition, thereby increasing the turbulence intensity and filtration flux per unit time. Third, the carefully designed groove spacing and depth help optimize the water flow path, without significantly reducing the strength of the activated carbon rod body and extending the service life of the element. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 2 is a structural schematic diagram of one embodiment of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0016] The present invention will be described in more detail below with reference to specific embodiments in conjunction with the accompanying drawings.

[0017] Referring to Figure 1, an activated carbon rod for water filtration includes an activated carbon rod body 1, an axial through-hole 2 formed in the axial center of the activated carbon rod body, and a groove 3 formed on the outer surface of the activated carbon rod body 1. The groove 3 may be formed by a one-piece molding process such as stamping or sintering, avoiding the need for post-processing cutting, thereby ensuring a stable bond between the groove 3 and the activated carbon body and molding compatibility. The activated carbon rod body 1 has both the groove 3 and the axial through-hole 2, which forms a bidirectional turbulence passage in the water flow path and complicates the filtration path, significantly improving the turbulence intensity of the filtrate, increasing the filtration surface area, reducing the risk of clogging, and improving impurity retention efficiency. It also has a relatively high initial water flow rate under a given operating pressure, and maintains good turbidity removal effect even after the flow rate decreases.

[0018] The activated carbon rod body 1 may have a shape such as a truncated cone or a cylindrical shape. Preferably, the activated carbon rod body 1 has a cylindrical shape, which is more regular in shape and easier to attach to the water purification device.

[0019] Preferably, the grooves 3 are arranged from top to bottom in the axial direction of the activated carbon rod body 1, i.e., the outer surface of the activated carbon rod body 1 is basically covered with grooves, thereby further increasing the surface area of ​​the activated carbon rod body 1 and further extending the filtration path.

[0020] The grooves 3 may extend continuously from the top of the activated carbon rod body 1 to the bottom of the activated carbon rod body 1. For example, the grooves 3 may be spirally surrounded from the top of the activated carbon rod body 1 to the bottom of the activated carbon rod body 1, and the spiral configuration allows grooves to be arranged in each direction on the side of the activated carbon rod body 1.

[0021] 1, there may be a plurality of grooves 3, which are spaced apart on the activated carbon rod body 1. Preferably, the grooves 3 are annular grooves, which are uniformly arranged on the outer surface of the activated carbon rod body, thereby improving the overall appearance of the activated carbon rod body 1, maintaining sufficient strength of the activated carbon rod body 1, and providing a uniform water passageway, which contributes to improving the filtering effect. Preferably, the vertical spacing between the annular grooves is 0.5 cm to 1.5 cm, and the depth of the annular grooves is 0.5 cm to 1.5 cm, thereby maintaining a sufficiently complex and long water passageway and ensuring the strength of the activated carbon rod body.

[0022] Preferably, the wall surface of the groove 3 has a roughness of 25 to 35 Ra (μm), which is used to strengthen the turbulence of the liquid and contribute to delaying the deposition of impurities, thereby increasing the turbulence intensity of the liquid and the filtration flux within a unit time.

[0023] In the description herein, references to "one embodiment," "some embodiments," "example," "specific example," or "some examples" mean that the specific feature, structure, material, or characteristic described with reference to the embodiment or example is included in at least one embodiment or example of the present invention. In the description herein, schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific feature, structure, material, or characteristic described may be combined in any suitable manner in any one or more embodiments or examples.

[0024] Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An activated carbon rod for filtering water, comprising an activated carbon rod body, An activated carbon rod for filtering water, characterized in that an axial through-hole is provided at the axial center of the activated carbon rod body, and a groove is provided on the outer surface of the activated carbon rod body.

2. 2. The activated carbon rod for filtering water as claimed in claim 1, wherein the activated carbon rod body has a cylindrical shape.

3. 3. The activated carbon rod for filtering water according to claim 1, wherein the grooves are arranged from top to bottom in the axial direction of the activated carbon rod body.

4. 4. The activated carbon rod for filtering water according to claim 3, wherein the groove spirally surrounds the activated carbon rod body from the top to the bottom of the activated carbon rod body.

5. 4. The activated carbon rod for filtering water according to claim 3, wherein the grooves are plural and spaced apart on the body of the activated carbon rod.

6. 6. The activated carbon rod for filtering water according to claim 5, wherein the groove is an annular groove.

7. 7. The activated carbon rod for filtering water as claimed in claim 6, wherein the annular grooves are uniformly arranged on the outer surface of the activated carbon rod body.

8. 8. The activated carbon rod for filtering water according to claim 7, wherein the vertical interval between the annular grooves is 0.5 cm to 1.5 cm, and the depth of the annular grooves is 0.5 cm to 1.5 cm.

9. 9. The activated carbon rod for filtering water according to claim 8, wherein the wall roughness of the grooves is 25 to 35 Ra (μm).

10. 4. The activated carbon rod for filtering water according to claim 3, wherein the wall roughness of the grooves is 25 to 35 Ra (μm).

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